- Nov. 13, 2025
- Due to system maintenance, the system will not be available on the following dates and times.
* Login is not possible.
·Saturday, November 22 11:00 - Sunday, November 23 19:00 (JST)
·Saturday, November 29 11:00 - Sunday, November 30 28:00 (JST)
·Saturday, December 20 11:00 - Sunday, December 21 19:00 (JST)
·Saturday, December 27 11:00 - Sunday, December 28 28:00 (JST)
·Saturday, January 10 11:00 - Sunday, January 11 19:00 (JST)
·Saturday, January 17 11:00 - Sunday, January 18 28:00 (JST)
We apologize for the inconvenience, and thank you for your understanding and cooperation.
- Aug. 09, 2024
- Announcement of some services suspension due to system maintenance
- Mar. 15, 2022
- About the occurrence of an email message not being sent to the Gmail address
- Feb. 25, 2022
- The system failure that occurred on Feb. 25th (JST) has been recovered.
We apologize for the inconvenience.
- Feb. 25, 2022
- Currently, a system failure has occurred and the system cannot be used.
We are currently working on recovery, but recovery isIt is expected to be around 24:00[JapanTime] on 2/25.
We apologize for the inconvenience.
- Mar. 15, 2011
- Web site of "Technical information service " is newly opened.