Copyright © 2020-2024 Human Informatics and Interaction Research Institute (HIIRI), AIST. All rights reserved.

The copyright of HIIRI Web Site ( and below) are reserved by HIIRI. All rights reserved. The contents of this web site are legally protected by Japanese Low of Copyright and the international conventions. Nobody is allowed to copy any part without permission.

* Free materials (Photos AC and Silhouettes AC) of AC Works Co.,Ltd. are used in some backgrounds and icons.


The names of products or companies appearing in HIIRI Web Site ( and below) are trademark or registered trademark of each company. Use of these trademarks is only for reference, and not for advertisement of the products nor companies. Use of the trademark is in accordance with the conditions required by the trademark right holder.

Privacy policy

Private information obtained through the inquiry form or mail in HIIRI Web Site ( and below) must be used only for the specified purpose described on that page, and never used for the other purpose nor opened to the public. If you contact via E-mail, your E-mail address will be displayed to the receiver. Your E-mail address obtained by the inquiry is used only for replying. Treatment of the private information is conformity to the Privacy Policy of AIST.

Technical specification

HIIRI Web Site ( and below) is conformity with the following technical specifications.


The newest accessibility standards (XML syntax for HTML Living Standard, CSS Level 3, WCAG 2.2 Level Triple-A) that provide high accessibility for the sighted, low-vision, and blind people, are applied.

  • XML syntax for HTML Living Standard, WHATWG
  • CSS Level 3, W3C
  • Level AAA conformance, W3C WAI Web Content Accessibility Guidelines 2.2

* Some pages are comformity with only WCAG 2.2 Level Single-A

* Extension .html and MIME Type text/html are used for all the web page files, so as to be used by the old browsers that cannot use XML syntax for HTML Living Standard. Thus, the error returns because of XML declaration <?xml version="1.0" encoding="UTF-8"?> when the W3C® Markup Validation Service checks these pages. However, it is not defect. If you would like to validate the grammar of the web page, please excute the validation by uploading the source file with changing the extension as .xhtml. In this case, no error will occur.

Script language

JavaScript™ 1.0 is used. However, browsing is available by unsupported browser.


Plug-ins are not required.