＜Maintenance information 1＞
The service will be suspended for maintenance during the following period.
May 5(Mon), 2025 10:00(JST) - May 7(Wed), 2025 09:00(JST) (planned)
In addition, keep in mind that the service stop scheduled day and time may be changed.
＜Regular maintenance time information＞
■One Portal Dossier (OPD) Search
All OPD Services
In the following hours, all OPD services are not available.
- Sunday 8:00 am to Sunday 9:00 am
Family information services
In the following hours, only the case of which the document number has been entered
are displayed.
- 1:00 pm to 2:00 pm Tuesday and Thursday（Summer time period 0:00 am to 1:00 am）
- 1:00 pm to 1:15 pm Monday through Saturday（Summer time period 0:00 pm to 0:15 pm）
- 1:00 pm to 2:00 pm Sunday（Summer time period 0:00 pm to 1:00 pm）
Service suspension time of the foreign patent office
In the following hours, the dossier information of the foreign patent office is not
available.
-EPO Sunday 2:00 pm to 7:00 pm（Summer time period 1:00 pm to 6:00 pm）
-KIPO Sunday 0:00 am to 10:00 am
-CNIPA Saturday 1:00 am to Monday 1:00 am
-TIPO 10:00 pm to 10:59 pm Monday through Friday
*Anyway it is also JST.
Summer time period is from 10:00am on the last Sunday in March to 10:00am on the last Sunday in October.
*The dossier information of each country may not be available due to the occasional
maintenance of the provided system in each country.