I. Types of Japanese Patents:
Invention Patent: Requires substantive examination, examination period 2-3 years, validity period 20 years;
Utility Model Patent: No substantive examination, high approval rate. Period 6-8 months, validity period 10 years;
Design Patent: Requires substantive examination, examination period 6-8 months, validity period 25 years;
II. Required Documents for Japanese Design Patent Application
- Applicant information (business license/ID card scan);
- Inventor's ID card scan, address;
- Six-view drawings, perspective views, etc., of the product (accepts photographs, renderings, line drawings, etc.);
- Standard product name (the design name is the generic name; model numbers cannot be included);
- Priority: 6 months. Must be claimed at the time of application;
III. Time and Process for Japanese Design Patent Application:
Time: From application to grant for a Japanese design patent takes approximately 6-8 months, with a receipt issued in about 5 working days;
Process:
- Submit application: The Japan Patent Office (JPO) issues a receipt within 3-5 working days;
- Acceptance and examination: The Japan Patent Office conducts a substantive examination;
- Grant and publication: After grant, the applicant pays the registration fee, and the Japanese design patent right officially takes effect;
IV. Advantages of Japanese Patents
Patent Protection: Companies holding Japanese invention patents can enjoy patent protection during the validity period, preventing infringement by other companies;
Japanese invention patents have high value, reflecting a company's technical strength and enhancing product competitiveness and market position;
Market Recognition: In the Japanese market, companies holding invention patents are generally viewed as having high innovation capabilities and market potential, which helps improve their competitiveness;
Note:
- From application to grant for a Japanese design patent takes approximately 6-8 months, with a receipt issued in about 5 working days
- Starting from April 1, 2024, Japan no longer issues paper patent certificates; they are replaced by electronic certificates
Japanese Patent Certificate (Example)


