About CiNii

About CiNii

CiNii (Scholarly and Academic Information Navigator, pronounced like "sigh-knee") is a database service that enables searching of information on academic articles published in academic society journals or university research bulletins, or articles included in the National Diet Library's Japanese Periodicals Index Database.

The National Institute of Informatics (NII) is in the process of integrating academic content provided under separate services to construct "GeNii", a system intended to serve as a platform enabling linkages with useful academic information resources both in Japan and overseas.

It also contains a large number of articles that are available free of charge, and the search function can be used without registration. In viewing paid content, special rates and other privileges are offered to institutional fixed-price users (registration by institution) or users with an ID (individual registration).

Author-search service has been available experimentally since April 2010, and we’re aiming to offer easier use.

CiNii's three major features

• Large volume of article information

  CiNii incorporates 12 million articles. Articles from different databases that have duplicate information are displayed as a single article.

• Access to full text documents

  Access to full text documents is possible with 3.2 million of the 12 million articles currently available on CiNii.
  CiNii enables you to search desired articles and obutain the full text of such articles.
  Through joint collaborations, we also provide links to navigate to full text documents, etc. on other services.

• Displays citation information

  Based on this citation information (References / Cited by), users can track down related articles.

* Numbers of records are the data as of Apr. 2009.

The big picture

The big picture of CiNii becomes as follows.

Databases incorporated

See Databases incorporated

Please read before using CiNii.

Please read carefully the GeNii Terms of Use and CiNii Terms of Use before using CiNii. By using CiNii, you agree to both the GeNii and CiNii Terms of Use.

• GeNii Terms of Use
• CiNii Terms of Use (effective March 27, 2009)
  • (Old edition CiNii Service Usage Detailed Regulations)

System Requirements

The following browsers are recommended.

• Windows
  • Internet Explorer 6.0 or above
  • Firefox 3.0 or above
• Mac OS
  • Safari 3.0 or above

• CiNii uses JavaScript. Please enable JavaScript to use CiNii.

• CiNii uses cookies. Please allow your browser to accept cookies.

  • Block or allow cookies on Internet Explore 7 and 8
  • Enabling and disabling cookies on Firefox
  • To manage Cookies with Safari 3.0

• Pop-up windows are used for the part of ID verification window and the CiNii functions. Some browsers are set up to block pop-ups, so please deactivate the pop-up blocker when using CiNii.
  If you have tool bars (Google, Yahoo!, etc.) installed on your browser, please ensure that they are also set to allow pop-ups.

  • To permit pop-ups on Internet Explorer 7.0 or higher
  • To permit pop-ups on Google Toolbar
  • To permit pop-ups on Yahoo! Toolbar
  
  
• If you get error messages frequently, please refer to the following FAQ page.
  →Frequently-Asked Questions "What should I do if an error message is produced before I can see the content?"

• Adobe Reader 6.0 or above is required for service applications and for accessing full text documents.
  If you get an error viewing a PDF, try uninstalling your Adobe Acrobat Reader and reinstalling the latest version. It has been reported that having copies of both old and new versions of Adobe Acrobat Reader on the same computer can causes an error, even if you have installed the latest version.
  →Download Adobe Reader