Location: 1-5-1 Otemachi, Chiyoda, Tokyo, JAPAN
+81-3-6840-1536(rep.)

We are proud of our 130 year history in IP and
Will continue to strive for excellence in our work

Recent Update Events

Asamura News

IP Information (ASAMURA NEWS)

IP news (Asamura News)

Client First

ASAMURA IP P.C. hereby declares, as through the many generations (established 1891), we have always, to pursue the progress of IP systems in the world. To ensure our client’s satisfaction at all times.
All members of the ASAMURA IP P.C. family, swear to oblige by these beliefs and to do their very best to accomplish such beliefs.

Asamura Declaration

ASAMURA IP P.C. will contribute to the progress of the Intellectual Property systems in the world.
ASAMURA IP P.C. provides services based on knowledge and experience cultivated from over a hundred years, as a patent firm having the longest history and tradition in Japan.
ASAMURA IP P.C. will accurately grasp our client’s needs, and will always endeavor to offer our clients the satisfaction they seek.

See the proof of ASAMURA IP P.C. is trusted!

Trading countries 

Clients all over the world 

established in

Our Value and What Makes Us different

For over a century, we have been providing our clients with excellent service based on knowledge and expertise. We have contributed to the evolution of intellectual property systems all over the world, and helped companies protect their inventions.

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Who We Are

We have been experts in intellectual property since 1891. Today, we use our history,heritage and experience to help companies around the world get the results they want.

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Visitors to Asamura IP P.C. are listed here.

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Awards

We are proud to receive various IP awards every year.

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Our History

-First Patent Office In Japan-
The world was a very different place when ASAMURA IP P.C. was founded in 1891. When Mr.Saburo Asamura opened his office, telephones were only beginning to become widely commercially available. In the century that followed, the company has seen the technology transform the way people live their lives.
Thanks to the trust of our customers, we celebrated our 130th anniversary in 2021.

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Our Services

We provide global expertise, grounded in history and heritage.

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Our Corporate and Social Responsibilities

We do not just do great work for our clients, we also try to work for our community and the environment.

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Managing Board Members

Masahiro Asamura

Senior Managing Partner

Patent Attorney
Attorney at Law

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Ken Kanai

Managing Partner

Patent Attorney
 

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Kiyoshi Asamura

Senior Advisor

Patent Attorney
 

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Yoshiteru Mizumoto

Patent Attorney
Director
Mechanical & Electric Dept.

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Yoichi Inoue

Patent Attorney
Director
Chemical Dept.

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Kazutaka Otsuka

Patent Attorney
Director
Trademark & Design Dept.

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Yasuaki Yamaguchi

Patent Attorney
Director
IP Administration Dept.

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Patent Attorneys and Ph.D.

Akihiro Iwami

Patent Attorney
Senior Partner,
Mechanical & Electrical Dept.

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Hiroyuki Hashimoto

Patent Attorney
Senior Partner,
Mechanical & Electrical Dept.

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Yuko Tanaka

Patent Attorney
Mechanical & Electrical Dept.

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Akira Kitagawa

Patent Attorney
Senior Partner,
Mechanical & Electrical Dept.

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Hiroaki Kakinuma

Ph.D.
Mechanical & Electrical Dept.

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Kazuyuki Obinata

Patent Attorney
Advisor,
Mechanical & Electrical Dept.

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Takayuki Hatanaka

Patent Attorney
Advisor,
Mechanical & Electrical Dept.

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Katsunori Shirae

Patent Attorney
Advisor,

Mechanical & Electrical Dept.

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Katsuhiko Shimomura

Patent Attorney
Senior Partner,
Chemical Dept.

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Mikio Kameoka

Patent Attorney
Senior Partner,
Chemical Dept.

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Yuichiro Asano

Patent Attorney
Senior Partner, Ph.D.
Chemical Dept.

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Mari Yuge

Patent Attorney
Senior Partner,
Chemical Dept.

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Hisashi Kanamori

Patent Attorney
Senior Partner,
Chemical Dept

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Makoto Tatsuzuki

Patent Attorney
Senior Partner,
Chemical Dept.

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Hironobu Mizuno

Patent Attorney
Senior Partner,
Chemical Dept.

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Yukihiro Ikeda

Patent Attorney
Advisor,
Chemical Dept.

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Ryoji Mochizuki

Patent Attorney
Senior Partner,
Trademark & Design Dept.

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Takuhiro Shinoda

Patent Attorney
Senior Partner
Trademark & Design Dept.

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Ryota Hara

Patent Attorney
Senior Partner,
Trademark & Design Dept.

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Yuri Ito

Patent Attorney
Trademark & Design Dept.

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Hirotou Matsumiya

Patent Attorney
Senior Partner,
Trademark & Design Dept. 

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Hirotaka Nakayama

Patent Attorney
Trademark & Design Dept.

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Shuji Kikuma

Patent Attorney
Trademark & Design Dept.

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Hiroko Hirayama

Patent Attorney
Counsel,
Trademark & Design Dept.

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International Business Coordinator

Yulia Maruyama

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Jun Zhao

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Xinjia Zheng

Attorney

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Partner Lawyers (Asamura Law Offices)

Masahiro Asamura

Attorney at Law

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Naoki Matukawa

Attorney at Law

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Kenji Wada

Attorney at Law

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Haruo Goto

Attorney at Law

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ACCESS

Tokyo Station (JR) : 5 min. walk from Marunouchi North Exit
Otemachi Station (Subway* ): Direct access from C8, C11, C12 Exits
*) Tokyo Metro (Marunouchi Line, Chiyoda Line, Tozai Line, Hanzomon Line), Toei Subway (Mita Line)
Taxi
When using a cab, please show this map to your taxi driver.

Otemachi Main Office, ASAMURA IP P.C.

Address: Otemachi 1st Square West Tower 17F,
1-5-1, Otemachi, Chiyoda-ku, Tokyo 100-0004, JAPAN

P.O. BOX: P.O. BOX 156, Ginza Post Office, 100-8691, JAPAN

Phone: +81-3-6840-1536 (rep.)

FAX:  +81-3-6840-1540

E-Mail: Inquiry Form

Office Introduction here

KANDA Office, ASAMURA IP P.C.

Address: Ikko Global Bldg 7F, 2-4-2, Uchikanda, Chiyoda-ku,Tokyo 101-0047, JAPAN

Kanda Station(JR Yamanote Line): 3 min. walk Kanda  Station(Tokyo Metro Ginza Line) :4 min. walk Otemachi Station(Tokyo Metro Marunouchi Line): 5 min. walk

Phone: +81-3-3257-1910
FAX: +81-3-3525-7037


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