粒子計測研究グループ

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研究業績

発表論文

2025年

  • Vasilatou, K., Iida, K., Kazemimanesh, M., Olfert, J., Sakurai, H., Sipkens, T.A., Smallwood, G.J. (2025). Aerosol physical characterization: A review on the current state of aerosol documentary standards and calibration strategies. J. Aerosol Sci., 183,106483. https://doi.org/10.1016/j.jaerosci.2024.106483

2024年

  • Iida, K., Ikeda, T., Minakami, T., & Sakurai, H. (2024). Verifying the viable particle counts of biofluorescent particle counters by using inkjet aerosol generators. Aerosol Sci. Technol., 58(5), 554-568. https://doi.org/10.1080/02786826.2024.2316836

  • Mulholland, G. W., Duelge, K. J., Hackley, V. A., Farkas, N., Kramar, J. A., Zachariah, M. R., Takahata, K., Sakurai, H., & Ehara, K. (2024). Measurement of 100nm monodisperse particles by four accurate methods: Traceability and uncertainty. Aerosol Sci. Technol., 58(3), 323-333. https://doi.org/10.1080/02786826.2024.2310548

2023年

  • Sakurai, H., Murashima, Y., Iida, K., Wälchli, C., Auderset, K. and Vasilatou, K. (2023). Traceable methods for calibrating condensation particle counters at concentrations down to 1 cm-3. Metrologia, 60, 055012. https://doi.org/10.1088/1681-7575/acf5f1

  • Takahashi, K., Kuruma, Y., Takahata, K., Sakurai, H. (2023). Determination of refractive index increments of PMMA particles dispersed in liquid phase. Adv. Powder Technol., 34(10), 104185. https://doi.org/10.1016/j.apt.2023.104185

  • Brown, A.S., Quincey, P., Ebert, V., Nowak, A., Tompkins, J.T., Hessey, I., Ciupek, K., Schaefer, C., Werhahn, O., Vasilatou, K., Lüönd, F., Macé, T., Gaie-Levrel, F., Bregonzio-Rozier, L., Oganyan, N., Belenkii, D., Sakurai, H., Murashima, Y., Liu, J., Jung, J. and Seeger, S. (2023). International comparison CCQM-K150: Particle number concentration (100 to 20 000 cm-3) and particle charge concentration (0.15 to 3 fC cm-3). Metrologia, 60, 08014. https://doi.org/10.1088/0026-1394/60/1A/08014

  • Brown, A.S., Quincey, P., Ebert, V., Nowak, A., Tompkins, J.T., Hessey, I., Ciupek, K., Schaefer, C., Werhahn, O., Vasilatou, K., Lüönd, F., Macé, T., Gaie-Levrel, F., Bregonzio-Rozier, L., Oganyan, N., Belenkii, D., Sakurai, H., Murashima, Y., Liu, J., Jung, J., Seeger, S., Wiedensohler, A., Tuch, T., Merkel, M. and Weinhold, K. (2023). International comparison CCQM-P189: Particle number concentration (100 to 20 000 cm-3) and particle charge concentration (0.15 to 3 fC cm-3). Metrologia, 60, 08015. https://doi.org/10.1088/0026-1394/60/1A/08015

  • Vasilatou, K., Wälchli, C., Iida, K., Horender, S., Tritscher, T., Hammer, T., Rissler, J., Gaie-Levrel, F. & Auderset, K. (2023). Extending traceability in airborne particle size distribution measurements beyond 10 μm: Counting efficiency and unit-to-unit variability of four aerodynamic particle size spectrometers. Aerosol Sci. Technol., 57(1), 24-34. https://doi.org/10.1080/02786826.2022.2139659

  • Takegawa, N., Nagasaki, A., Fushimi, A., Fujitani, Y., Murashima, Y., Sakurai, H. (2023). Volatility of aircraft exhaust ultrafine particles inferred from field measurements at Narita International Airport. Atmospheric Environ., 292, 119391. https://doi.org/10.1016/j.atmosenv.2022.119391

2022年

  • Shinohara, N., Tatsu, K., Kagi, N., Kim, H., Sakaguchi, J., Ogura, I., Murashima, Y., Sakurai, H. & Naito, W. (2022). Air exchange rates and advection-diffusion of CO2 and aerosols in a route bus for evaluation of infection risk. Indoor Air, 32(3), e13019. https://doi.org/10.1111/ina.13019

  • Wu, T. Y., Murashima, Y., Sakurai, H., Iida, K. (2022). A bilateral comparison of particle number concentration standards via calibration of an optical particle counter for number concentration up to ~1000 cm-3. Measurement, 189,110446 . https://doi.org/10.1016/j.measurement.2021.110446

2021年

  • 成畑 晃希, 飯田 健次郎.（2021）「気中浮遊インフルエンザウイルスのセンシングに向けた湿式静電捕集サンプラの開発」『エアロゾル研究』36(4), 253-262. https://doi.org/10.11203/jar.36.253

  • 坂口 孝幸, 車 裕輝.（2021）「質量測定式液中粒子計数装置を用いた液中粒子数濃度一次標準」『計測と制御』60(8), 565-570. https://doi.org/10.11499/sicejl.60.565

  • Kuruma, Y., Sakaguchi, T., & Sakurai, H. (2021). Primary standard for the number concentration of liquid-borne particles: extension of the diameter range from the micrometer to the sub-micrometer level and reduction of the measurement uncertainty. Metrologia, 58, 45007. https://doi.org/10.1088/1681-7575/abff07

  • 高畑 圭二, 桜井 博.（2021）「100 nm単分散粒径標準粒子の開発：微分型電気移動度分析器を用いたポリスチレンラテックス粒子への個数平均径および粒径分布幅の高精度値づけ」『エアロゾル研究』36(2), 123-128. https://doi.org/10.11203/jar.36.123

  • Iida, K., Sakurai, H., Auderset, K. & Vasilatou, K. (2021). Using an Inkjet Aerosol Generator to Study Particle Bounce in Optical Particle Counters. Aerosol Sci. Technol., 55(10), 1165-1182. https://doi.org/10.1080/02786826.2021.1950910

  • Vasilatou, K., Walchli, C., Koust, S., Horender, S., Iida, K., Sakurai, H., Schneider, F., Spielvogel, J., Wu, T. Y. & Auderset, K. (2021). Calibration of optical particle size spectrometers against a primary standard: Counting efficiency profile of the TSI Model 3330 OPS and Grimm 11-D monitor in the particle size range from 300 nm to 10 μm. J. Aerosol Sci., 157, 105818. https://doi.org/10.1016/j.jaerosci.2021.105818

  • Takegawa, N., Murashima, Y., Fushimi, A., Misawa, K., Fujitani, Y., Saitoh, K. and Sakurai, H. (2021). Characteristics of sub-10nm particle emissions from in-use commercial aircraft observed at Narita International Airport. Atmos. Chem. Phys., 21, 1085-1104. https://acp.copernicus.org/articles/21/1085/2021/

2020年

  • Kuruma, Y., Sakaguchi, T., & Sakurai, H. (2020). Mass-measurement-type optical particle counting method for determination of number concentration of liquid-borne particles. Adv. Powder Technol., 31(2), 848-858. https://doi.org/10.1016/j.apt.2019.12.003

  • Takahata, K., Sakurai, H. & Ehara, K. (2020). Accurate determination of mass and diameter of monodisperse particles by the electro-gravitational aerosol balance: Correction for the work function imbalance between the electrode surfaces. Aerosol Sci. Technol., 54(12), 1386-1398. https://doi.org/10.1080/02786826.2020.1787324

  • Tran, S., Iida, K., Yashiro, K., Murashima, Y., Sakurai, H. & Olfert, J. S. (2020). Determining the cutoff diameter and counting efficiency of optical particle counters with an aerodynamic aerosol classifier and an inkjet aerosol generator. Aerosol Sci. Technol., 54(11), 1335-1344. https://doi.org/10.1080/02786826.2020.1777252

  • Matsuura, Y., Nakamura, A. & Kato, H. (2020). Novel Approach for Reliable Determination of the Refractive Index of Particles in the Liquid Phase Using a Hybrid Flow Particle Tracking Method. Anal. Chem., 92(8), 5994-6002. https://doi.org/10.1021/acs.analchem.0c00252

  • Vasilatou, K., Dirscherl, K., Iida, K., Sakurai, H., Horender, S. & Auderset, K. (2020). Calibration of optical particle counters: First comprehensive inter-comparison for particle sizes up to 5 μm and number concentrations up to 2 cm－3. Metrologia, 57, 25005. https://doi.org/10.1088/1681-7575/ab5c84

2019年

  • Tajima, N., Iida, K., Ehara, K., Khumpuang, S., Hara, S. & Sakurai, H. (2019). A method to deposit a known number of polystyrene latex particles on a flat surface. Aerosol Sci. Technol., 53(12), 1353-1366. https://doi.org/10.1080/02786826.2019.1666969

  • Takahashi, K., Takano, A., Kinugasa, S. & Sakurai, H. (2019). Determination of the Rayleigh Ratio with an Uncertainty Analysis by Static Light-Scattering Measurements of Certified Reference Materials for Molecular Weight. Anal. Sci., 35(9), 1045-1051. https://doi.org/10.2116/analsci.19P103

  • Takahashi, K., Kramar, J. A., Farkas, N., Takahata, K., Misumi, I., Sugawara, K., Gonda, S. & Ehara, K. (2019). Interlaboratory comparison of nanoparticle size measurements between NMIJ and NIST using two different types of dynamic light scattering instruments. Metrologia, 56(5), 55002. https://doi.org/10.1088/1681-7575/ab3073

  • Lin, H. -L., Fu, W. -E., Weng, H. -F., Misumi, I., Sugawara, K., Gonda, S., Takahashi, K., Takahata, K., Ehara, K., Takatsuji, T., Fujimoto, T., Salas, J., Dirscherl, K., GarnA|s, J., Damasceno, J., de Oliveira, J. C. V., Emanuele, E., Picotto, G. B., Kim, C. S., Cho, S. J., Motzkus, C., Meli, F., Gao, S., Shi, Y., Liu, J., JAmting, K., Catchpoole, H. J., Lawn, M. A., Herrmann, J., Coleman, V. A., Adlem, L., Kruger, O. A., Buajarern, J., Buhr, E., Danzebrink, H. -U., Krumrey, M., & Bosse, H. (2019). Nanoparticle Characterization - Supplementary Comparison on Nanoparticle Size. Metrologia, 56(1A), 4004. https://doi.org/10.1088/0026-1394/56/1A/04004

2018年

  • 飯田 健次郎, 篠崎 大将, 水上 敬, 桜井 博 (2018)「製薬産業向け気中OPCの計数効率評価～インクジェットエアロゾル発生器を用いた校正法の標準化～」『空気清浄』, 56(3), 153-163.

  • Kato, H., Nakamura, A. & Kinugasa, S. (2018). Effects of angular dependency of particulate light scattering intensity on determination of samples with bimodal size distributions using dynamic light scattering methods. Nanomaterials, 8(9), 708. https://doi.org/10.3390/nano8090708

  • Iida, K. & Sakurai, H. (2018). Counting efficiency evaluation of optical particle counters in micrometer range by using inkjet aerosol generator. Aerosol Sci. Technol., 52(10), 1156-1166. https://doi.org/10.1080/02786826.2018.1505032

  • Matsuura, Y., Ohuchi, N., Nakamura, A. & Kato, H. (2018). Determination of an accurate size distribution of nanoparticles using particle tracking analysis corrected for adverse effect of random Brownian motion. Phys. Chem. Chem. Phys., 20(26), 17839-17846. https://doi.org/10.1039/C7CP08332G

  • Matsuura, Y., Nakamura, A. & Kato, H. (2018). Determination of nanoparticle size using a flow particle-tracking method. Anal. Chem., 90(6), 4182-4187. https://doi.org/10.1021/acs.analchem.8b00249

  • Sakurai, H. & Murashima, Y. (2018). Evaluation of the NanoAerosol Generator by Kanomax FMT Inc. in Aerosolization of Size Standard Nanoparticle and Protein. Aerosol Air Qual. Res., 18(2), 549-554. https://doi.org/10.4209/aaqr.2017.09.0352

  • Takahashi, K., Ohuchi, S., Saito, K., Hirasawa, M. & Sakurai, H. (2018). Simultaneous determination of size and concentration for fine bubbles in water from laser light scattering. Appl. Opt., 57(2), 225-229. https://doi.org/10.1364/AO.57.000225

2017年

  • Kato, H., Nakamura, A., Banno, H. & Shimizu, M. (2017). Separation of different-sized silica nanoparticles using asymmetric flow field-flow fractionation by control of the Debye length of the particles with the addition of electrolyte molecules. Colloids Surf. A Physicochem. Eng. Asp., 538, 678-685. https://doi.org/10.1016/j.colsurfa.2017.11.067

  • Matsuura, Y., Nakamura, A. & Kato, H. (2017). Nanoparticle tracking velocimetry by observing light scattering from individual particles. Sens. Actuators B Chem., 256, 1078-1085. https://doi.org/10.1016/j.snb.2017.10.054

  • Iida, K., Ehara, K., Takahashi, K., Sakurai, H., Nakanishi, J., Yamamoto, K. & Gamo, M. (2017). Aerosol-to-liquid collection: A method for making aqueous suspension of hydrophobic nanomaterial without adding dispersant. Aerosol Sci. Technol., 51(10), 1144-1157. https://doi.org/10.1080/02786826.2017.1337868

  • Kato, H., Ouchi, N., & Nakamura, A. (2017). Simultaneous Measurement of Size and Density of Spherical Particles using Two-Dimensional Particle Tracking Analysis Method. Powder Technology, 315, 68-72. https://doi.org/10.1016/j.powtec.2017.03.046

  • Kato, H., Nakamura, A., Shimizu, M., Banno, H., Kezuka, Y., Matsubara, K., Hosoi, K., Yoshida, S. & Fujimoto, T. (2017). Acceleration of dispersing calcium carbonate particle in aqueous media using jet milling method. Colloids Surf. A Physicochem. Eng. Asp., 520, 570. https://doi.org/10.1016/j.colsurfa.2017.02.010

  • Matsuura, Y., Ouchi, N., Banno, H., Nakamura, A. & Kato, H. (2017). Accurate size determination of polystyrene latex nanoparticles in aqueous media using a particle tracking analysis method. Colloids Surf. A Physicochem. Eng. Asp., 525, 7-12. https://doi.org/10.1016/j.colsurfa.2017.04.058

  • 水上 敬, 細川 勉, 近藤 郁, 飯田 健次郎, 榎原 研正, 桜井 博 (2017)「インクジェットエアロゾル発生器を用いた光散乱式気中パーティクルカウンタの計数効率評価」『エアロゾル研究』 32(1), 29-36. https://doi.org/10.11203/jar.32.29

  • Horie, M., Endoh, S., Maru, J., Kato, H. & Fujita, K. (2017). Pharyngeal aspiration of single-wall carbon nanotubes aggravates allergic reaction to inhaled ovalbumin in mice. Toxicol. Environ. Chem., 99(1), 134-147. https://doi.org/10.1080/02772248.2016.1147042

2016年

  • 田島 奈穂子, クンプアン ソマワン, 原 史朗, 飯田 健次郎, 榎原 研正, 桜井 博 (2016)「粒子数基準ウェハの作製手順―ウェハ表面検査装置の校正―」『エアロゾル研究』31(4), 266-277. https://doi.org/10.11203/jar.31.266

  • Takegawa, N., Iida, K. & Sakurai, H. (2016). Modification and laboratory evaluation of a TSI ultrafine condensation particle counter (Model 3776) for airborne measurements. Aerosol Sci. Technol., 51(2), 235-245. https://doi.org/10.1080/02786826.2016.1261990

  • Ogura, I., Kotake, M., Sakurai, H. & Honda, K. (2016). Surface-collection efficiency of Nuclepore filters for nanoparticles. Aerosol Sci. Technol., 50(8), 846. https://doi.org/10.1080/02786826.2016.1200007

  • Fujita, K., Fukuda, M., Endoh, S., Maru, J., Kato, H., Nakamura, A., Shinohara, N., Uchino, K. & Honda, K. (2016). Pulmonary and pleural inflammation after intratracheal instillation of short single-walled and multi-walled carbon nanotubes. Toxicol. Lett., 257, 23-37. https://doi.org/10.1016/j.toxlet.2016.05.025

  • Horie, M., Sugino, S., Kato, H., Tabei, Y., Nakamura, A. & Yoshida, Y. (2016). Does photocatalytic activity of TiO2 nanoparticles correspond to photo-cytotoxicity? Cellular uptake of TiO2 nanoparticles is important in their photo-cytotoxicity. Toxicol. Mech. Methods, 26(4), 284-294. https://doi.org/10.1080/15376516.2016.1175530

  • Kato, H., Nakamura, A., Ouchi, N. & Kinugasa, S. (2016). Determination of bimodal size distribution using dynamic light scattering methods in the submicrometer size range. Materials Express, 6(2), 175-182. https://doi.org/10.1166/mex.2016.1290

  • Horie, M., Endoh, S., Maru, J., Kato, H. & Fujita, K. (2016). Pharyngeal aspiration of single-wall carbon nanotubes aggravates allergic reaction to inhaled ovalbumin in mice. Toxicol. Environ. Chem., 99(1), 134-147. https://doi.org/10.1080/02772248.2016.1147042

  • Sobina, E., Zimathis, A., Prinz, C., Emmerling, F., Unger, W., de Santis Neves, R., Galhardo, C. E., De Robertis, E., Wang, H., Mizuno, K. & Kurokawa, A. (2016). Final report of CCQM-K136 measurement of porosity properties (specific adsorption, BET specific surface area, specific pore volume and pore diameter) of nanoporous Al2O3. Metrologia, 53, 8014. https://doi.org/10.1088/0026-1394/53/1A/08014

2015年

  • Fujita, K., Endoh, S., Kato, H., Shinohara, N. & Honda, K. (2015). Development and dissemination of hazard assessment of carbon nanotubes by in vitro cell-based assay for voluntary safety management. Toxicol. Lett., 238(2), S195-S196. https://doi.org/10.1016/j.toxlet.2015.08.590

  • Kato, H., Nakamura, A. & Horie, M. (2015). Acceleration of suspending single-walled carbon nanotubes in BSA aqueous solution induced by amino acid molecules. J. Colloid Interface Sci., 437, 156-162. https://doi.org/10.1016/j.jcis.2014.09.018

  • Ohata, M., Sakurai, H., Nishiguchi, K., Utani, K. & Gunther, D. (2015). Direct analysis of ultra-trace semiconductor gas by inductively coupled plasma mass spectrometry coupled with gas to particle conversion-gas exchange technique. Analytica Chimica Acta, 891, 73-78. https://doi.org/10.1016/j.aca.2015.06.048

  • Horie, M., Kato, H., Endoh, S., Nakamura, A., Maru, J., Shinohara, N. & Fujita, K. (2015). Effects of various carbon nanotube suspensions on A549, THP-1, and peritoneal Macrophage Cells. J. Biomim. Biomater. Biomed. Eng., 24, 1-13. https://doi.org/10.4028/www.scientific.net/JBBBE.24.1

  • Yamada, H., Funato, K. & Sakurai, H. (2015). Application of the PMP methodology to the measurement of sub-23 nm solid particles: Calibration procedures, experimental uncertainties, and data correction methods. J. Aerosol Sci., 88, 58-71. https://doi.org/10.1016/j.jaerosci.2015.06.002

  • Fujita, K., Fukuda, M., Endoh, S., Maru, J., Kato, H., Nakamura, A., Shinohara, N., Uchino, K. & Honda, K. (2015). Size effects of single-walled carbon nanotubes on in vivo and in vitro pulmonary toxicity. Inhal. Toxicol., 27(4), 207-223. https://doi.org/10.3109/08958378.2015.1026620

  • Horie, M., Nishio, K., Kato, H., Endoh, S., Fujita, K., Nishio, K., Nakamura, A., Miyauchi, A., Kinugasa, S., Hagihara, Y., Yoshoda, Y. & Iwahashi, H. (2015). The expression of inflammatory cytokine and heme oxygenase-1 genes in THP-1 cells exposed to metal oxide nanoparticles. J. Nano Res., 30, 116-127. https://doi.org/10.4028/www.scientific.net/JNanoR.30.116

2014年

  • Horie, M., Komaba, K., Kato, H., Endoh, S., Fujita, K., Nishio, K., Nakamura, A., Yamamoto, K., Kinugasa, S., Hagiwara, Y., Yoshoda, Y. & Iwahashi, H. (2014). Cellular effects of industrial metal nanoparticles and hydrophilic carbon black dispersion. J. Toxicol Sci., 39(6), 897. https://doi.org/10.2131/jts.39.897

  • Iida, K., Sakurai, H., Saito, K. & Ehara, K. (2014). Inkjet aerosol generator as monodisperse particle number standard. Aerosol Sci. Tech., 48(8), 789-802. https://doi.org/10.1080/02786826.2014.930948

  • Kato, H., Nakamura, A. & Noda, N. (2014). Determination of Size Distribution of Silica Nanoparticles: A Comparison of Scanning Electron Microscopy, Dynamic Light Scattering, and Flow Field-Flow Fractionation with Multiangle Light Scattering Methods. Materials Express, 4(2), 144-152. https://doi.org/10.1166/mex.2014.1150

  • Kato, H. & Nakamura, A. (2014). Separation of Nano- and Micro-Sized Materials by Hyphenated Flow and Centrifugal Field-Flow Fractionation. Anal. Methods, 6, 3215-3218. https://doi.org/10.1039/C3AY42203H

  • Horie, M., Nishio, K., Kato, H., Endoh, S., Fujita, K., Nakamura, A., Hagihara, Y., Yoshida, Y. & Iwahashi, H. (2014). Evaluation of cellular effects of silicon dioxide nanoparticles. Toxicol. Mech. Methods, 24(3), 196-203. https://doi.org/10.3109/15376516.2013.879505

  • Horie, M., Nishio, K., Kato, H., Endoh, S., Fujita, K., Nakamura, A., Kinugasa, S., Hagihara, Y., Yoshida, Y. & Iwahashi, H. (2014). Evaluation of cellular influences caused by calcium carbonate nanoparticles. Chem. Biol. Interact., 210, 64-76. https://doi.org/10.1016/j.cbi.2013.12.013

  • Kato, H., Nakamura, A. & Horie, M. (2014). Behavior of Surfactants in Aqueous Dispersions of Single-Walled Carbon Nanotubes. RSC Adv., 4, 2129-2136. https://doi.org/10.1039/C3RA45181J

2013年

  • Tajima, N., Sakurai, H., Fukushima, N. & Ehara, K. (2013). Design Considerations and Performance Evaluation of a Compact Aerosol Particle Mass Analyzer. Aerosol Sci. Technol., 47(10), 1152-1162. https://doi.org/10.1080/02786826.2013.827323

  • Motzkus, C., Mace, T., Gaie-Levrel, F., Ducourtieux, S., Delvallee, A., Dirscherl, K., Hodoroaba, V. -D., Popov, I., Popov, O., Kuselman, I., Takahata, K., Ehara, K., Ausset, P., Maille, M., Michielsen, N., Bondiguel, S., Gensdarmes, F., Morawska, L., Johnson, G. R., Faghihi, E. M., Kim, C. S., Kim, Y. H., Chu, M. C., Guardado, J. A., Salas, A., Capannelli, G., Costa, C., Bostrom, T., Jamting, A. K., Lawn, M. A., Adlem, L. & Vaslin-Reimann, S. (2013). Size characterization of airborne SiO2 nanoparticles with on-line & off-line measurement techniques: an interlaboratory comparison study. J. Nanopart. Res., 15, 1919. https://doi.org/10.1007/s11051-013-1919-4

  • Takahashi, K., Takahashi, R., Horikawa, Y., Matsuyama, S., Kinugasa, S.&Ehara, K. (2013). Optimization of experimental parameters for separation of nonionic surfactants by supercritical fluid chromatography. J. Supercrit. Fluids, 82, 256-262. https://doi.org/10.1016/j.supflu.2013.08.007

  • Fujita, K., Fukuda, M., Endoh, S., Kato, H., Maru, J., Nakamura, A., Uchino, K., Shinohara, N., Obara, S., Nagano, R., Horie, M., Kinugasa, S., Hashimoto, N. & Kishimoto, M. (2013). Physical properties of single-wall carbon nanotubes in cell culture and their dispersal due to alveolar epithelial cell response. Toxicol. Mech. Methods, 23(8), 598-609. https://doi.org/10.3109/15376516.2013.811568

  • Horie, M., Nishio, K., Kato, H., Shinohara, N., Nakamura, A., Fujita, K., Kinugasa, S., Endoh, S., Yoshida, Y., Hagihara, Y. & Iwahashi, H. (2013). In vitro evaluation of cellular influences induced by stable fullerene C70 medium dispersion: Induction of cellular oxidative stress. Chemosphere, 93(6), 1182-1188. https://doi.org/10.1016/j.chemosphere.2013.06.067

  • Ema, M., Naya, M., HorimotoM. & Kato, H. (2013). Developmental toxicity of diesel exhaust: A review of studies in experimental animals. Reprod. Toxicol., 42, 1-17. https://doi.org/10.1016/j.reprotox.2013.06.074

  • Horie, M., Kato, H. & Iwahash, H. (2013). Cellular effects of manufactured nanoparticles: Effect of adsorption ability of nanoparticles. Arch. Toxicol, 87, 771-871. https://doi.org/10.1007/s00204-013-1033-5

  • Eitoku, T., Tange, M., Kato, H. & Okazaki, T. (2013). Depolarized dynamic light scattering study of multi-walled carbon nanotubes in solution. Materials Express, 3(1), 37-42. https://doi.org/10.1166/mex.2013.1096

  • Horie, M., Stowe, M., Tabei, M., Kato, H., Nakamura, A., Endoh, S. & Fujita, K. (2013). Dispersant affects the cellular influences of single-wall carbon nanotube: The role of CNT as carrier of dispersants. Toxicol. Mech. Meth., 23(5), 315-322. https://doi.org/10.3109/15376516.2012.755595

  • Horie, M., Komaba, L., Fukui, H., Kato, H., Endoh, S., Nakamura, A., Miyauchi, A., Maru, J., Miyako, E., Fujita, K., Hagihara, Y., Yoshida, Y. & Iwahashi, H. (2013). Evaluation of the biological influence of a stable carbon nanohorn dispersion. Carbon, 54, 155-167. https://doi.org/10.1016/j.carbon.2012.11.015

  • Horie, M., Nishio, K., Endoh, S., Kato, H., Fujita, K., Miyauchi, A., Nakamura, A., Kinugasa, S., Yamamoto, K., Niki, E., Yoshida, Y. & Iwahashi, H. (2013). Chromium(III) oxide nanoparticles induced remarkable oxidative stress and apoptosis on culture cells. Environ. Toxicol., 28(2), 61-75. https://doi.org/10.1002/tox.20695

2012年

  • 飯田 健次郎, 櫻井 博, 斎藤 敬三, 榎原 研正 (2012)「インクジェット技術を使ったエアロゾル発生」『エアロゾル研究』27(4), 341-349. https://doi.org/10.11203/jar.27.341

  • Yli-Ojanpera, J., Sakurai, H., Iida, K., Makela, J. M., Ehara, K. & Keskinen, J. (2012). Comparison of Three Particle Number Concentration Calibration Standards Through Calibration of a Single CPC in a Wide Particle Size Range. Aerosol Sci. Tech., 46(11), 1163-1173. https://doi.org/10.1080/02786826.2012.701023

  • Kato, H., Nakamura, A. & Matsubara, K. (2012). Dynamics and Role of Rosin Acid Molecules for Preparation of Well-Dispersed CaCO3 Colloidal Suspensions. J. Nanopart. Res., 14, 950. https://doi.org/10.1007/s11051-012-0950-1

  • Fukui, H., Horie, M., Endoh, S., Kato, H., Fujita, K., Nishio, K., Komaba, L., Maru, J., Miyauchi, A., Nakamura, A., Kinugasa, S., Yoshida, Y., Hagiwara, Y., Morimoto, Y. & Iwahashi, H. (2012). Association of zinc ion release and oxidative stress induced by intratracheal instillation of ZnO nanoparticles to rat lung. Chem. Bio. Int. , 198(1-3), 29-37. https://doi.org/10.1016/j.cbi.2012.04.007

  • Takahashi, K., Matsuyama, S., KatoH. & Kinugasa, S. (2012). Development of the certified reference material of poly(ethylene glycol) nonylphenyl ether by supercritical fluid chromatgraphy. Int. J. Polym. Anal. Charact., 17(3), 208-217. https://doi.org/10.1080/1023666X.2012.654009

  • Horie, M., Fujita, K., Kato, H., Endoh, S., Nishio, K., Komaba, L., Nakamura, A., Miyauchi, A., Kinugasa, S., Hagihara, Y., Niki, E., Yoshida, Y. & Iwahashi, H. (2012). Association of the physical and chemical properties and the cytotoxicity of metal oxidenanoparticles: Metal ion releace, adsorption ability and specific surface area. Metallomics, 4, 350-360. https://doi.org/10.1039/C2MT20016C

  • Horie, M., Komaba, L., Kato, H., Nakamura, A., Yamamoto, K., Endoh, S., Fujita, K., Kinugasa, S., Mizuno, K., Hagihara, Y., Yoshida, Y. & Iwahashi, H. (2012). Evaluation of cellular influences induced by stable nanodiamond dispersion; the cellular influences of nanodiamond are small. Diam. Relat. Mater., 24, 15-24. https://doi.org/10.1016/j.diamond.2012.01.037

  • Kato, H., Nakamura, A., TakahashiK. & Kinugasa, S. (2012). Accurate Size and Size-Distribution Determination of Polystyrene Latex Nanoparticles in Aqueous Medium Using Dynamic Light Scattering and Asymmetrical Flow Field-Flow Fractionation with Multi-Angle Light Scattering. Nanomaterials, 2(1), 15-30. https://doi.org/10.3390/nano2010015

  • Horie, M., Kato, H., Fujita, K., Endoh, S. & Iwahashi, H. (2012). In vitro evaluation of cellular response induced by manufactured nanoparticles. Chem. Res. Toxicol., 25(3), 605-619. https://doi.org/10.1021/tx200470e

2011年

  • Tajima, N., Fukushima, N., Ehara, K. & Sakurai, H. (2011). Mass Range and Optimized Operation of the Aerosol Particle Mass Analyzer. Aerosol Sci. Technol., 45(2), 196-214. https://doi.org/10.1080/02786826.2010.530625

  • 加藤 晴久 (2011)「量子ドットを利用した統計学的細胞中のナノ物質追跡評価法」『ぶんせき』442, 621-622.

  • Horie, M., Kato, H., Endoh, S., Fujita, K., Nishio, K., Komaba, L., Fukui, H., Nakamura, A., Miyauchi, A., Kinugasa, S., Nakazato, T., Yoshida, Y., Hagihara, Y., Morimoto, Y. & Iwahashi, H. (2011). Evaluation of cellular influences of platinum nanoparticles by stable medium dispersion. Metallomics, 3, 1244-1152. doi: 10.1039/C1MT00060H

  • Matsuzawa, Y., Kato, H., Ooyama, H., Nishide, H., Kataura, H. & Yoshida, M. (2011). Photoinduced Dispersibility Tuning of Carbon Nanotubes by a Water-soluble Stilbene as a Dispersant. Adv. Materials, 23(34), 3922-3925. doi: 10.1002/adma.201101960

  • Takahashi, K., Kato, H. & Kinugasa, S. (2011). Development of a Standard Method for Nanoparticle Sizing by Using the Angular Dependence of Dynamic Light Scattering. Anal. Sci., 27(7), 751-756. doi: 10.2116/analsci.27.751

  • Horie, M., Nishio, K., Kato, H., Fujita, K., Endoh, S., Nakamura, A., Miyauchi, A., Kinugasa, S., Yamamoto, K., Niki, E., Yoshida, K., Hagihara, Y. & Iwahashi, H. (2011). Cellular responses induced by cerium oxide nanoparticles: Induction of intracellular calcium level and oxidative stress on culture cells. J. Biochem., 150(4), 461-271. doi: 10.1093/jb/mvr081

  • Kato, H., Nakamura, A., Horie, M., Endoh, S., Fujita, K., Iwahashi, H. & Kinugasa, S. (2011). Preparation and Characterization of Stable Dispersions of Carbon Black and Nanodiamond in Culture Medium for in vitro toxicity assessment. Carbon, 49(12), 3989-3997. doi: 10.1016/j.carbon.2011.05.039

  • Horie, M., Fukui, H., Nishio, K., Endoh, S., Kato, H., Fujita, K., Miyauchi, A., Nakamura, A., Shichiri, M., Ishida, N., Kinugasa, S., Morimoto, Y., Niki, E., Yoshida, Y. & Iwahashi, H. (2011). Evaluation of acute oxidative stress induced by NiO nanoparticles in vivo and in vitro. J. Occup. Health., 53(2), 64-74. doi: 10.1539/joh.L10121

  • H. Kato (2011). Tracking nanoparticles inside cells. Nat. Nanotechnol., 6, 139-140. doi:10.1038/nnano.2011.25

  • 飯田 健次郎 (2011)「液中粒子数濃度の計測および校正技術に関する調査研究」『産総研計量標準報告』8(2), 213-243.

2010年

  • Wang, X., Caldow, R., Sem, G. J., Hama, N., Sakurai, H. (2010). Evaluation of a condensation particle counter for vehicle emission measurement: Experimental procedure and effects of calibration aerosol material. J. Aerosol Sci. 41(3), 306-318. https://doi.org/10.1016/j.jaerosci.2010.01.001

  • Horie, M., Komaba, L., Kato, H., Endoh, S., Fujita, K., Nishio, K., Nakamura, A., Miyauchi, A., Kinugasa, S., Hagihara, Y., Yoshida, Y. & Iwahashi, H. (2010). In vitro evaluation of cellular responces induced by Al(OH)3-treated rutile TiO2. Nano Biomed., 2(2), 182-193. doi: 10.11344/nano.2.182

  • Sakaguch, T. & Ehara, K. (2010). Primary standard for the number concentration of liquid-borne particles in the 10 to 20 μm diameter range. Meas. Sci. Technol., 22(2), 24010. doi: 10.1088/0957-0233/22/2/024010

  • Sakurai, H. & Ehara, K. (2010). Evaluation of uncertainties in femtoampere current measurement for the number concentration standard of aerosol nanoparticles. Meas. Sci. Technol., 22(2), 24009. doi: 10.1088/0957-0233/22/2/024009

  • Horie, M., Nishio, K., Kato, H., Shinohara, N., Nakamura, A., Fujita, K., Kinugasa, S., Endoh, S., Yamamoto, K., Yamamoto, O., Niki, E., Yoshida, Y. & Iwahashi, H. (2010). In vitro evaluation of cellular responses induced by stable fullerene C60 medium dispersion. J. Biochem., 148(3), 289-298. doi: 10.1093/jb/mvq068

  • Horie, M., Nishio, K., Fujita, K., Kato, H., Endoh, S., Suzuki, M., Nakamura, A., Miyauchi, A., Kinugasa, S., Yamamoto, K., Iwahashi, H., Murayama, H., Niki, E. & Yhoshida, Y. (2010). Cellular responses by stable and uniform ultrafine titanium dioxide particles in culture-medium dispersions when secondary particle size was 100 nm or less. Toxicol. in vitro, 24(6), 1629-1638. doi: 10.1016/j.tiv.2010.06.003

  • Kato, H., Shinohara, N., Nakamura, A., Horie, M., Fujita, K, Takahashi, K., Iwahashi, H., Endoh, S. & Kinugasa, S. (2010). Characterization of Fullerene Colloidal Suspension in a Cell Culture Medium for in vitro Toxicity Assessment. Mol. Biosys., 6, 1238-1246. doi: 10.1039/C002364G

  • Kato, H., Fujita, K., Horie, M., Suzuki, M., Nakamura, A., Endoh, S., Yoshida, Y., Iwahashi, H., Takahashi, K. & Kinugasa, S. (2010). Dispersion characteristics of various metal oxide secondary nanoparticles in culture medium for in vitro toxicology assessment. Toxicol. in vitro, 24(3), 1009-1018. doi: 10.1016/j.tiv.2009.12.006

2009年以前

  • Takahashi, K., Kinugasa, S., Yoshihara, R., Nakanishi, A., Mosing, R. K. & Takahashi, R. (2009). Evaluation of a condensation nucleation light Scattering detector for the analysis of synthetic polymer by supercritical fluid chromatography. J. Chromatogr. A, 1216(51), 9008-9013. doi: 10.1016/j.chroma.2009.10.065

  • Fujita, K., Horie, M., Kato, H., Endoh, S., Suzuki, M., Nakamura, A., Miyauchi, A., Yamamoto, K., Kinugasa, S., Nishio, K., Yoshida, Y., Iwahashi, H. & Nakanishi, J. (2009). Effects of ultrafine TiO2 particles on gene expression profile in human keratinocytes without illumination: Involvement of extracellular matrix and cell adhesion. Toxicol. Lett., 191(2-3), 109-117. doi: 10.1016/j.toxlet.2009.08.011

  • Kato, H., Mizuno, K., Shimada, M., Nakamura, A., Takahashi, K., Hata, K. & Kinugasa, S. (2009). Observations of bound Tween80 surfactant molecules on single-walled carbon nanotubes in an aqueous solution. Carbon, 47(15), 3434. doi: 10.1016/j.carbon.2009.08.006

  • Horie, M., Nishio, K., Fujita, K., Kato, H., Nakamura, A., Kinugasa, S., Endoh, S., Miyauchi, A., Yamamoto, K., Murayama, H., Niki, E., Iwahashi, H., Yhoshida, Y. & Nakanishi, J. (2009). Ultrafine NiO particles induce cytotoxicity in vitro by cellular uptake and subsequent Ni(II) release. Chem. Res. Toxicol., 22(8), 1415-1426. doi: 10.1021/tx900171n

  • Kato, H., Nakamura, A., TakahashiK. & Kinugasa, S. (2009). Size effect on UV-Vis absorption properties of colloidal C60 particles in water. Phys. Chem. Chem. Phys., 11, 4946-4948. doi: 10.1039/B904593G

  • Kato, H., Suzuki, M., Fujita, K., Horie, M., Endoh, S., Yoshida, Y., Iwahashi, H., Takahashi, K., Nakamura, A. & Kinugasa, S. (2009). Reliable size determination of nanoparticles using dynamic light scattering method for in vitro toxicology assessment. Toxicol. in vitro, 23(5), 927-934. doi: 10.1016/j.tiv.2009.04.006

  • Kato, H., Takahashi, K., SaitoT. & Kinugasa, S. (2008). Characterization of Nanoparticles in an Aqueous Solution with Bound Water Molecules Using Pulsed Field Gradient Nuclear Magnetic Resonance Spectroscopy. Chem. Lett., 37(11), 1128-1129. doi: 10.1246/cl.2008.1128

  • Kato, H., Takahashi, K., Saito, T., Suzuki, M. & Kinugasa, S. (2008). Accurate Size Determination of PS latex Nanoparticles in Aqueous Solution Using Pulsed Field Gradient Nuclear Magnetic Resonance Spectroscopy. Chem. Phys. Lett., 463(1-3), 150-154. doi: 10.1016/j.cplett.2008.08.044

  • Takahashi, K., Kishine, K., Matsuyama, S., Saito, T., Kato, H. & Kinugasa, S. (2008). Certification and uncertainty evaluation of the certified reference materials of poly(ethylene glycol) for molecular mass fractions by using supercritical fluid chromatography. Anal. Bioanal. Chem., 391, 2079-2087. doi: 10.1007/s00216-008-2075-z

  • Takahashi, K., Kinugasa, S., Senda, M., Kimizuka, K., Fukushima, K., Matsumoto, T., Shibata, Y. & Christensen, J. (2008). Quantitative comparison of a corona-charged aerosol detector & an evaporative light-scattering detector for the analysis of a synthetic polymer by supercritical fluid chromatography. J. Chromatogr. A, 1193(1-2), 151-155. doi: 10.1016/j.chroma.2008.04.012

  • Takahashi, K., Matsuyama, S., Saito, T., Kato, H., Kinugasa, S., Yarita, T., Maeda, T., Kitazawa, H. & Bounoshita, M. (2008). Calibration of an evaporative light-scattering detector as a mass detector for supercritical fluid chromatography by using uniform Poly(ethylene glycol) oligomers. J. Chromatogr. A, 1193(1-2), 146-150. doi: 10.1016/j.chroma.2008.03.083

  • Takahashi, K., Kato, H., Saito, T., Matsuyama, S. & Kinugasa, S. (2008). Precise Measurement of the Size of Nanoparticles by Dynamic Light Scattering with Uncertainty Analysis. Part. Part. Syst. Charact. , 25(1), 31-38. doi: 10.1002/ppsc.200700015

  • Shimada, K., Matsuyama, S., Saito, T., Kinugasa, S., Nagahata, R. & Kawabata, S. (2005). Conformational Effects on Cationization of Poly(ethylene glycol) by Alkali Metal Ions in Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry. Int. J. Mass Spectrom., 247(1-3), 85-92. doi: 10.1016/j.ijms.2005.10.001

  • Shimada, K., Kato, H., Saito, T., Matsuyama, S. & Kinugasa, S. (2005). Precise measurement of the self-diffusion coefficient for poly(ethylene glycol) in aqueous solution using uniform oligomers. J. Chem. Phys. , 122, 244914. doi: 10.1063/1.1948378

  • Sakaguchi, T. & Ehara, K. (2005). The evaluation of particle counting efficacy of the new optical scattering method detecting the fluorescence for the particle number concentration standard in liquid. Proceedings of SPIE, 5856, 994-1002. doi: 10.1117/12.612472

  • K. Ehara, N. Fukushima , K. Worachotekomjorn & K. J. Coakley (2004). Analysis & Improvement of the Temporal Response of the Aerosol Particle Mass Analyzer. J. Aerosol Sci., 35(S1), S119-S120. doi:10.1016/j.jaerosci.2004.06.074

  • Myojo, T., Ehara, K., KoyamaH. & Okuyama, K. (2004). Size Measurement of Polystyrene Latex Particles Larger than 1 Micrometer using a Long Differential Mobility Analyzer. Aerosol Sci. Technol., 38(12), 1178-1184. doi:10.1080/027868290901882

  • K. Takahata & K. Ehara (2003). A method of Aerosol Generation & Dispersion from a Suspension of Particles in a Supercritical Fluid. J. Aerosol Sci., 34(S2), S1189-S1190. doi:10.1016/S0021-8502(03)00170-8

  • Shimada, K., Nagahata, R., Kawabata, S., Matsuyama, S., Saito, T. & Kinugasa, S. (2003). Evaluation of the Quantitativeness of Matrix Assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry Using Equimolar Mixture of Uniform Polyethylene Glycol Oligomers. J. Mass Spectrom., 38(9), 948-954. doi: 10.1002/jms.508

  • Sakaguchi, T. (2003). Rotation of a Fine Particle with Circularly Polarized Anti-Parallel Collinear Laser Beams. Opt. Rev., 10, 136-139. doi: 10.1007/s10043-003-0136-2

  • Sakaguchi, T. & Ehara, K. (2003). Study on distinction of particles and bubbles for particle counting in liquids by the use fluorescence. Proceedings of SPIE, 5144, 855-863. doi: 10.1117/12.501013

  • McMurry, P.H., Wang, X., ParkK. & Ehara, K. (2002). The Relationship between Mass & Mobility for Atmospheric Particles: A New Technique for Measuring Particle Density. Aerosol Sci. Technol., 36(2), 227-238. doi: 10.1080/027868202753504083

  • 島田 かより, 佐藤 圭祐, Lusenkova, M. A., 衣笠 晋一, 工藤 憲一, 山内 芳雄 (2001)「超臨界流体クロマトグラフィーによるオリゴマーの分離」『高分子論文集』58(10), 541-547. doi: 10.1295/koron.58.541

  • Shimada, K., Lusenkova, A.M., Sato, K., Saito, T., Matsuyama, S., Nakahara, H. & Kinugasa, S. (2001). Evaluation of mass discrimination effects in the quantitative analysis of polydisperse polymers by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry using uniform oligostyrenes. Rapid Commun. Mass Spectrom., 15(4), 277-282. doi: 10.1002/rcm.224

  • Ehara, K., Mulholl, G.W. & Hagwood, R.C. (2000). Determination of Arbitrary Moments of Aerosol Size Distributions from Measurements with a Differential Mobility Analyzer. Aerosol Sci. Technol., 32(5), 434-452. doi: 10.1080/027868200303560

  • Ehara, K., Mulholl, G.W. & Hagwood, R.C. (2000). Determination of Arbitrary Moments of Aerosol Size Distributions from Measurements with a Differential Mobility Analyzer. Aerosol Sci. Technol., 30(Supplement 1), S369-S370. doi: 10.1016/S0021-8502(99)80196-7

  • Ehara, K. & Shin, S. (1998). Measurement of density distribution of aerosol particles by successive classification of particles according to their mass and diameter. J. Aerosol Sci., 29(Supplement 1), S19-S20. doi: 10.1016/S0021-8502(98)00086-X

  • Ehara, K. & Koike, M. (1997). Influence of particle diffusion on the survival function in the count method using a Millikan cell. J. Aerosol Sci., 28(Supplement 1), S151-S152. doi: 10.1016/S0021-8502(97)85076-8

  • Ehara, K., Hagwood, C.R. & Coakley, K.J. (1996). Novel method to classify aerosol particles according to their mass-to-charge ratio?Aerosol particle mass analyser. J. Aerosol Sci., 27(2), 217-234. doi: 10.1016/0021-8502(95)00562-5

解説・書籍

  • H. Kato. (2012). Size determination of nanoparticles by dynamic light scattering. In S. C. Singh, H.B. Zeng, Chunlei Guo, & Weiping Cai (Eds.), Nanomaterials: Processing and Characterizations with laser (pp. 535-554). Weinheim, Germany: WILEY-VCH

  • 榎原 (2004)「エアロゾル粒子の質量分布測定技術と粒子キャラクタリゼーションへの応用」『混相流』18(2), 89-95

  • 榎原 (2004)「環境計測と微粒子標準」『計量管理』 54(2), 78-84

  • 桜井, 高見 (2004)「100 nm以下のエアロゾル粒子のオンライン化学組成分析技術」『エアロゾル研究』 19(1), 14-20

  • 桜井 (2004)「粒径と粒度分布」「粒子とエアロゾルの物理性状決定因子」『エアロゾル用語集』（日本エアロゾル学会編、京都大学学術出版会）

  • 榎原 (2003)「粒径値づけ技術と測定器校正用標準粒子」『空気清浄』, 40(5), 314-321

  • 瀬戸, 齊藤, 篠崎, 桜井 (2003)「ナノ粒子に着目したディーゼル排気微粒子低減技術」『自動車技術』 57(9), 76-81

  • 坂口 (1999)「レーザートラップ」『機械と工具』別冊, 62-63

特許

  • 「粒子付着方法」田島、飯田、Sommawan、原、特開2016-155111（2016/09/01）

  • 「部分吸引型凝縮粒子カウンター」飯田、特許第5881113号（2016/02/12）

  • 「ナノ炭素材料の細胞培養液中分散方法」加藤、堀江、中村、特許第5871255号（2016/01/22）

  • 「粒子荷電装置及び該装置を用いた粒子分級装置」桜井、特開WO2016/002647（2016/01/07）

  • 「微小材料分級方法」加藤、特開2015-071146（2015/04/16）

  • 「３重管型ＮＭＲチューブ」加藤、特開2015-028472（2015/02/12）

  • 「粒子数濃度標準液の製造法」飯田、特許第5371014号（2013/09/27）

  • 「エンジンからの過渡粒子質量排出濃度の計測方法」齊藤、桜井、篠崎、榎原、特許第5057453号（2012/08/10）

  • 「インクジェットを用いた懸濁液の粒子数濃度測定方法」飯田、特開2012-127670（2012/07/05）

  • 「気体中浮遊粒子の有効密度測定方法」桜井、榎原、齊藤、矢部、特許第4911414号（2012/01/27）

  • 「金属微粒子の製造方法および金属微粒子分散溶液」松田、中島、加藤、特開WO2011/155473（2011/12/15）

  • 「粒子質量分析方法」桜井、榎原、特許第4822278号（2011/09/16）

  • 「エアロゾル荷電中和装置」瀬戸、桜井、特許第10-1016478号（2011/02/04）

  • 「エアロゾル荷電中和装置」瀬戸、桜井、特許第7855868号（2010/12/21）

  • 「エアロゾル荷電中和装置」瀬戸、桜井、特許第4547506号（2010/07/16）

  • 「エアロゾル荷電中和装置」桜井、瀬戸、特許第4221501号（2008/11/28）

  • 「擬似噴霧液滴の製造方法及び製造装置」高畑、榎原、特許第4022617号（2007/10/12）

  • 「粉体の粒径分布測定方法及びその装置」高畑、榎原、特許第3991099号（(2007/08/03）

  • 「エアロゾル粒子の発生分散方法及びその装置」高畑、榎原、特許第3991100号（2007/08/03）

  • 「エアロゾル荷電中和装置」瀬戸、桜井、特開WO2007/061120（2007/05/31）

  • 「液滴採取用サンプリングプローブ、並びに噴霧液滴の粒径分布測定方法及び装置」高畑、榎原、特許第3873117号（2006/11/02）

  • 「粉体の粒径分布測定方法及びその装置」高畑、榎原、特開2004/023109A（2004/03/18）

  • 「エアロゾル粒子、その製造方法、その製造装置及びエアロゾル粒子からなる擬似噴霧液滴」高畑、榎原、特開2004/022218A1（2004/03/18）

  • 「液中粒子計測装置およびその方法」坂口、榎原、特許第3265361号（2002/01/11）

  • 「液中粒子計測装置およびその方法」坂口、榎原、特許第3263729号（2001/12/28）

  • 「多重ビーム式微小物体処理装置」坂口、特許第1991509号（1995/11/22）

  • 「オプティカルモーター」坂口、特許第1956710号（1995/08/10）