Yes. According to the Regulations under the Japan Patent Act, Article 13bis, any person may submit information at any time after a patent application or an application for a utility model is filed, or after the grant of a patent or utility model.
Yes. According to the Regulations under the Japan Patent Act, Article 13bis, any person may submit information at any time after a patent application or an application for a utility model is filed, or after the grant of a patent or utility model.