What are the requirements for Japanese invention patent application documents

• Inventions under the via Paris Convention : 12 months from the earliest priority date.
• via Nationalization of PCT inventions: 30 months from the earliest priority date.

Inventors have a novelty grace period of 12 months after disclosure (including sale).

• via Paris Convention : 12 months from earliest priority date.
• via Nationalization of PCT : 30 months from the earliest priority date.

25 years

yes.

• Within 3 years from the filing date, the patent type can be changed from utility model to invention upon request of the applicant
• Utility model patents can be converted to design patents at any time

A conversion fee shall be paid for patent type conversion. Once the original patent application is converted, it will be deemed withdrawn.

• via Paris Convention : 6 months from earliest priority date.
• Hague Agreement route: 6 months from earliest priority date.

Inventors have a novelty grace period of 12 months after disclosure (including sale).

The JPO conducts formality examination and substantive examination of the design patent application, and the substantive examination starts automatically, and the applicant does not need to submit a separate substantive examination request. JPO mainly examines the novelty and inventiveness of designs.

• (*Secret design: applicants can request that their design remain secret for 3 years from the filing date).

Japan Patent Office

English: Japan Patent Office, abbreviation: JPO

Website: Japan Patent Office (jpo.go.jp)

Japanese Utility Model Patent Search: Japan Platform for Patent Information｜J-PlatPat [JPP] (inpit.go.jp)