Overview of Intellectual Property Group

In September 2005, City-Yuwa Partners merged with Ohba, Ozaki and Shimasue, which had long experience and remarkable achievements in the field of patent litigation. By the arrival of Mr. Masashige Ohba and Mr. Hideo Ozaki, who respectively have 50 years and 30 years of practice experience, City-Yuwa Partners created an excellent system to meet the demands of clients in this field promptly by a combination of the experience of senior attorneys and the energy of young attorneys of the firm.

The group's areas of practice cover patent infringement actions in the courts, appeal cases from Patent Office decisions in the Intellectual Property High Court, invalidation actions before the Patent Office, arbitrations, licensing and opinion matters. Further, we handle evaluation of essential patents for patent pools of various Standards, and we have acted as an agent for parties, particularly foreign corporations, who submit patents to evaluators of essentiality.

We handle prosecution of trademarks, but please note that we do not handle patent prosecution.

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