The Industrial Property Digital Library (IPDL) has been closed.
Currently the new information service is provided at the location below:

Japan Platform for Patent Information
https://www.j-platpat.inpit.go.jp/web/all/top/BTmTopEnglishPage

You will be automatically forwarded to the new site in 15 seconds.

Note:
If you have requested the old URL, you cannot access the new site. Please update your Favorites/Bookmarks.