About Usabout us 2

Greetings

We make strategic proposals ranging from obtaining/managing IP rights to resolving their disputes.

We operate our IP services based on three major pillars: qualified technology skills, high leveled language skills and tough negotiation skills, which have been acquired and developed through many years of domestic and international activities and experiences, as well as staff with diverse backgrounds. We assist you with all IP matters ranging from obtaining/managing IP rights to resolving their disputes meticulously, at the same time as strategically, provide them all in a one-stop manner. We will continue to be your problem-solving partner for every single IP matter.

Firm Profile

Kuzuwa & Partners, P.C. was founded in 1995 as Kuzuwa & Partners, taking over the predecessor Takao Minami Patent Office.
Since then, we have learned a lot and grown significantly not only through works assigned by domestic companies/research institutions, as well as collaborative work with IP law firms around the world including Western and Asian countries, but also through work directly assigned by many Western companies/research institutions.
In April 2023, we were reborn as a more stable and sustainable professional corporation.
In alliance with “Kuzuwa Law Office”, which has been co-established at this opportunity, we are propelling a wider range of advanced and strategic IP services.
Our firm will provide services with higher customer satisfaction in an environment reasonably suited also to teleworks in the Nishi-Shinjuku Mitsui Building, a 27-story blue-green glass building in a corner of the central Tokyo office area, Nishi-Shinjuku.

Attorney at Law/ Patent Attorney, President Partner
Yurie Kuzuwa J.D.

History

1995:                Mr. Kiyoshi Kuzuwa founded Kuzuwa & Partners, taking over the predecessor Takao Minami Patent Office.

2000:                Moved to Honshio-cho

2004:                Moved to Tomihisa-cho

2011:                Moved to Nishi-shinjuku Mitsui Building

2020:                Introduced a system of working remotely

2023:                Changed the structure of Kuzuwa & Partners to Professional Corporation (P.C.)/ Started a Partnership with Kuzuwa Law Office

2025:                Marked the 30th anniversary

2025:                Ms. Yurie Kuzuwa assumed the position of the President Partner at Kuzuwa &Partners, P.C.

Founder

Kiyoshi Kuzuwa

Patent Attorney

Qualification

  • Patent Attorney (registered in 1992)
  • Certified IP infringement litigator (registered in 2004)

Career

After graduating from the Faculty of Engineering, Tokyo University of Agriculture and Technology, Mr. Kuzuwa started his career at the Japan Patent Office as a Patent Examiner/Appeal Examiner in the field of polymer processing, applied chemistry, textile technology and medical science, and further served as a deputy director of Examination Standard Office and the IP legislation deliberation office for revision of Patent Acts and Examination Standards. Meanwhile, he studied Law at University of Munich (LMU) and Max Planck Institute for IP in Germany, and worked as an Exchange Examiner at USPTO. In 1992, he left the JPO and joined a Swiss chemical company (currently NOVARTIS AG) and worked at its Patent and Trademarks Division (concurrently serving as an IP manager of several Japan corporations) until joining Takao Minami Patent Office. Since 1995, he has been running Kuzuwa & Partners, while he was registered as a certified IP infringement litigator and appointed as a Professor at Chiba University in 2004 and assigned as a member of the JPO’s IP Project Study Group in 2005. He has been the Chairman of our firm in 2025.

Publications“Data Protection of New Drugs” (co-author), Intellectual Property Management Vol.66 No.3 (2016)
“Ergänzende Schutzzertifikate/Supplementary Protection Certificates” (currently “Ergänzende Schutzzertifikate mit pädiatrischer Laufzeitverlängerung/Supplementary Protection Certificates with Paediatric Extension of Duration”), (co-author) Carl Heymanns Verlag (2015)
“Construction of an IP Department linked to corporate management” (co-author), Japan Institute of Invention and Innovation (2007)
“Essentials of Patents” (co-translation) -Japan Institute of Invention and Innovation (2005)
“Guide to basic Intellectual Property case law” (co-author), Asakura Shoten (2005)
“European Patents: Unity of Invention in Europe” (translation), AIPPI magazine (October, 2004)
“Japanisches Fallrecht zu klinischen Versuchen mit patentierten Arzneistoffen” (Japanese case on clinical trials of patented medical substance), die pharmazeutische industrie Band 61 Nr. 1 (1999)
“Detailed Explanation on Improved Multi-claimed system/Patent Term Extension system” (co-author), Japan Institute of Invention and Innovation (1988)
“Latest Patent Management Manual” (co-author), New Technology Development Center (1988)
“Chemical invention in Europe (1), (2) Patent Management Vol.30 No. 4, No. 5” (1980)
etc.
Practice AreasMaterial science, Medicine, Litigation

Office Information

NameKuzuwa & Partners, P.C.
LocationNishi-Shinjuku Mitsui Bldg. 17F, 6-24-1 Nishi-Shinjuku,
Shinjuku-ku, Tokyo 160-0023, Japan
Telephone Number+81-3-5321-6761 (Reception: weekdays 9:20~17:40)
FAX+81-3-5321-6760