Institutional repositories aim to collect research materials produced at their institution and
to contribute to development of academic research by storing and saving the materials on a permanent basis, while providing them for public viewing via Internet free of charge.
As of March 2021, more than 4,700 repositories in the world and more than 800 in Japan provide their research and teaching output to audiences globally.
Online journals are limited to persons or institutions that have contracts with the publishers,
repositories provide the materials for public viewing via Internet free of charge.
All items in "naistar" are protected by copyright, with all rights reserved. The Copyrights remain with the authors or publishers.
The repository users shall comply with the Copyright Act of Japan that stipulates the conditions including but not limited to, reproduction for personal purposes and citation indicating the source.
In cases where the use of research materials extends beyond the conditions, the repository users required to obtain permission from the copyright holders.