Firm Profile

Japanese Name越川国際特許事務所 (Koshikawa Kokusai Tokkyo Jimusho)
English NameKOSHIKAWA & Co.
MembersPatent Attorney: Takao Koshikawa (President)
           Meiji Onoue
Patent Engineer:    1 person
Domestic affairs:     2 persons
International affairs:   2 persons
CAD/Drafter:       2 persons   Total: 9 persons
EstablishmentOctober 2, 1991

Takao Koshikawa (President)

KOSHIKAWA & Co. is a leading intellectual property law firm of Japan, established in 1991. Our firm has been providing a full range of legal services especially in Patents, Trademarks, Utility Model and Design Patents.

The mission of our firm is to render high quality services in a cost-efficient manner to its clients. Not merely domestic clients, our firm also represents foreign clients that seek to file and protect patents and trademarks in Japan.

Nowadays, as a result of technical innovation and rapid changes in the world, technologies are highly advanced and complicated. In such challenging age, we are always happy to render our best services for our client’s success.

Lastly, we appreciate your visit to our website.

Thank you.

Takao Koshikawa

takao koshikawa
Takao Koshikawa

Biography

  • 1972 Graduated, Shizuoka University (Mechanical Engineering)
  • 1972-1973 Engineer for Snowmobile, Yamaha Motor Co., Ltd.
  • 1974-1987 Assistant Manager, Patent Department in Yamaha
  • 1987 Registered as a Patent Attorney (Registration No. 9561)
  • 1988-1990 Assistant Manager, Patent Department, Sanshin Industries Co., Ltd. (Subsidiary company of Yamaha)
  • 1991-1994 President, Koshikawa International Patent Office
  • 2003 Passed the Special Infringement Lawsuit Counsel Examination
  • 2004 Additional registration of Special Infringement Lawsuit Counsel

External organizations
  • Member, Asian Patent Attorneys Association (APAA)
  • Member, European Communities Trademark Association (ECTA)
  • 1987 Member, Japan Patent Attorneys Association (JPAA)
  • 1994-1999, 2000-2002 Vice-Chairman, International Activity Committee of JPAA
  • 1999-2001 Council Member, JPAA
  • 1999-2001 Chairman, Shizuoka Patent Attorneys Association
  • 1999-2002 Member, Patent Committee of JPAA
  • 2004-2005 Chairman, Asian Affiars Group, JPAA Int'l Activities Center
  • 2007-2010 Deputy Director-General, JPAA Int'l Activities Center
  • 1988-1990 Member, Second Committee, International Committee, Japan Intellectual Property Association
  • 1988-Present Consultant, Hamamatsu Chamber of Commerce and Industry - Patent and Trademark
  • 2020-Present Head, Management Support Committee, Hamamatsu Chamber of Commerce and Industry
  • 2021-Present Part-time lecturer, Shizuoka University
  • 2005-2006 Deputy Section Chairmain, Hamamatsu City Start-up Planning Committee - Strategic Utilization on Intellectual Property
  • Patent and Trademark Consultant, Hamamatsu Industrial Creation Center - Hamamatsu Industrial Information Office
  • 1988-1993 Attended various lectures, seminars, etc., about US Intellectual Property offered by US Patent Law Institute in Nagoya
  • 1992-2020 Consultant, Japan Institute of Invention and Innovation, Shizuoka Branch, Patent and Trademark
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