There are three kinds of Japanese patents: Japanese franchise patents, Japanese utility model patents and Japanese design patents.
1. Japanese patent-invention patent
1), documents required for Japanese patent application: instructions and drawings (English version can be issued, supplemented by Japanese translation within 2 months); Letter of appointment (which can be supplemented later);
2) If the Japanese patent application has priority, it is required to provide:
-Submit an application for priority within 12 months from the date when the first application is submitted by other countries;
-It is necessary to declare at the time of application that the priority certificate can be submitted to the Japanese government within 16 months from the priority date;
-If domestic priority is claimed within 12 months from the filing date of the previous case, the previous case must be abandoned.