yes
10 years
The design does not lose its novelty if it is disclosed by the designer in Japan within 12 months from the filing date/priority date.
Inventors have a novelty grace period of 12 months after disclosure (including sale).
Inventors have a novelty grace period of 12 months after disclosure (including sale).
3-6 months
- 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.
yes. Multiple designs may be included in one design application.
yes
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 Once the original patent application is converted, it will be deemed withdrawn.
Reinstatement of priority on grounds of "due care" accepted.