Temporary Unavailability of Services (Report)

We would like to inform that the service became intermittently unavailable between 16:25 and 21:30 on 3rd May 2019 due to system errors.

1) KAKEN (Search Research Project)
It failed to display the list of search results and details page.
(Although the top page was displayed, the search function was unavailable.)

2) KAKEN (Search Researcher)
It failed to display details pages.
(Although the list of search results was displayed, details pages were not displayed.)

The service has been recovered and it is now operating normally.
We are sorry for any inconvenience caused to the users.