What are the requirements for Japanese utility model application documents?

Reinstatement of priority is accepted on grounds of "due care."

yes

20 years, and the validity period of patents for pharmaceutical inventions and pesticide inventions can be extended to 25 years upon application.

Grant fee: The applicant needs to pay the granted fee within 30 days after receiving the granted notice, which is the annual fee for the first to third years.
Annuity: From the 4th year from the date of granted, the annual fee will be paid year by year, and the payment can be postponed within 6 months after the overdue period, but at the same time, 200% of the annual fee of the current year must be paid as a penalty. The amount of the annual fee depends on the number of Claim, and the annual fee can be paid for several years in one lump sum.

Filing Language: Japanese

Necessary documents:

Attachments (if any):

Japan Patent Office

English: Japan Patent Office, abbreviation: JPO

yes

Grant fee: The applicant shall pay the granted fee within 30 days after receiving the granted notice.
Annuity: The annual fee for the first to third years must be paid together with the application fee when the patent application is filed, and the annual fee will be paid year by year from the fourth year, and the payment period corresponds to the granted date. 200% of the year's annual fee paid within the month is a late fee.