Our history

Our firm was established in the central part of Tokyo in 1994. Since 1994, we have provided high quality intellectual property services to global technology companies, leading research universities and technology startups. Our firm has experienced patent attorneys and technical advisors, and our areas of expertise include physics, chemistry, electrical engineering, mechanical engineering and software engineering. If you would like to file a patent, design or trademark application in Japan, please feel free to contact us.

Contact information


Mailing Address:  4th Floor, Keiodo Gyoen Building, 11-13, 1-Chome, Shinjuku-ku, Tokyo, 160-0022 JAPAN

Tel:       +81-3-5269-8205

FAX:      +81-3-5269-8207

E-mail:  iizukaip[at]iizuka-ip.com (please replace [at] with @)

Nearest Train Station:

Shinjuku-Gyoen Mae (Marunouchi Subway line)

- 3 minute walk from the Exit  2, Okido-mon Exit