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Junior Partner Kazutoshi Iiyama


Patent Attorney (Japan)

Practice Areas:

Patent Prosecution, Litigation, Opinions, Design, Invention Consulting (Patent Visualization)

Mr. Iiyama specializes in mechanical engineering and optics.

Work Experience:

From 1993 to 1998, Mr. Iiyama worked in the patent department at NGB Corporation, where he managed foreign patent applications and legal opinions, working closely with patent attorneys of other countries. He also provided interpretation for meetings between Japanese applicants and patent practitioners of other countries as well as for lectures given by English speaking patent practitioners.

Since joining RYUKA IP Law Firm in 2000, Mr. Iiyama’s Japanese patent prosecution experience includes conducting interviews with both Japanese and foreign inventors. In addition to prosecution and drafting legal opinions, he frequently attends international conferences and has given lectures on the state of Japanese patent law.


Master of Engineering, Nagoya University, 1994
Bachelor of Engineering, Nagoya University, 1992


Japan Patent Attorneys Association (JPAA)


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