World Intellectual Property Organization

Japan Patent Office

E-filing notifications


Accepted means of filing

Online: as a WAD created by JPO PAS software and submitted via ISDN , or as a WASP created and submitted by the PCT-SAFE client software


Accepted digital certificates

Digital certificates are not accepted for filing PCT international applications through JPO PAS.

When filing through PCT-SAFE, digital certificates issued by the following certification authorities are accepted:

  • Registrar of Legal Affairs Bureau
  • The Japan Chamber of Commerce & Industry
  • Japan Certification Services, Inc.
  • Secom Trust Systems Co., Ltd.
  • ChudenCTI Co., Ltd.


Accepted formats

This Office accepts the filing of the application body (description, claims and abstract) in character-coded format (e.g. XML). It does not accept the inclusion of application documents in pre-conversion format according to Administrative Instruction 706.

Sequence listing should preferably be filed, as a separate part of the description, in WIPO's ST.25 text format (no additional fees). International applications that include tables related to sequence listings are not accepted for online filing.



The support center for the PCT-SAFE software is open from Monday to Friday, excluding official holidays, from 9 am until 8 pm; it may be contacted:

  • by phone, at +81 (0)3 5575 5004.

The support center for JPO PAS is open from Monday to Friday, excluding official holidays, from 9 am until 8 pm, and it may be contacted:

  • by phone at +81 (0)3 5744 8534
  • by fax at +81 (0)3 5423 6450.



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