Seminars hosted by Shiga

Latest Information on Letters of Consent in Japan

Date and Time
6:00 p.m. (JST) on Thursday, January 18, 2024
Lecture language
Practice Area
Shiga International Patent Office

Outline of the Webinar

The Japanese Trademark Law has been revised and letters of consent will be available. The revision will come into effect on April 1, 2024. The examination guidelines on letters of consent have not been finalized by the Japan Patent Office yet. However, it would be useful to know how the practice of letters of consent could be in Japan well before April 1, 2024.

Mr. Tomohiro Gyoda, who is well experienced in negotiations with the owners of prior marks on coexistence, will explain the letter of consent system based on the draft of the examination guidelines and the pros and cons of letters of consent and temporary assignments (so-called “assign-back arrangement”), which have been traditionally used instead of letters of consent.


  • This webinar is aimed at providing IP information to our business partners and clients from overseas. Registration from persons who work for IP firms or law firms in Japan will not be approved as this may be deemed as a conflict of interest with our business.
  • The webinar is expected to consist of a 20 to 30-minute presentation and a 5 to 10-minute Q&A session.
  • If you miss watching the live session, you will receive an on-demand recorded video link a day after the live session is over. Please still register with the registration form.