Patents, Trademarks, Utility Models, Designs, and Copyright | HOZMA Patent and Trademark Attorneys

We offer professional intellectual property services including:Preparing, filing and prosecuting patent applications, utility model applications, design applications and trademark applications;
Translating English or Japanese applications to be filed into Japanese or English applications; Demand for Trial; Appeals; Preparing professional opinions; Search for patents, utility models, designs and trademarks.


HOZMA, established in 2007 by Yoshihito IIZUKA, is a patent firm located in Tokyo, Japan. HOZMA offers rapid and pointed services regarding intellectual properties such as patent, design and trademark in response to needs of clients.
Yoshihito IIZUKA, with over 30 years’ experience.
The firm name “HOZMA” is derived from a Japanese ancient document “Hotsuma Tsutahe (秀真伝)”. We tend to somewhat follow the spirit of language from the name of the “Hotsuma Tsutahe” that means to hand down “truth of truth”.


Y.U. Bldg., 6F 19-6,Hongo 3-chome,

Bunkyo-ku, Tokyo 113-0033, Japan



Toei Oedo Line “Hongo-Sanchome” Exit5: 5-minute walk
Tokyo Metro Marunouchi Line “Hongo-Sanchome” Exit2: 5-minute walk