Our People

Our People

Founder

Yoshio KAWAGUTI

Yoshio KAWAGUTI
(1929-2019)

Education:
Osaka University (Bachelor of Laws, 1953)
Qualification:
Patent Attorney (admitted 1957)
Practice Areas:
Litigation; Trademark and Design

President

Katsumasa OSAKI

Katsumasa OSAKI

REPRESENTATIVE PARTNER

Education:
Keio University (Master of Engineering, Applied Chemistry, 1991)
Qualification:
Patent Attorney (admitted 1992)
IP Infringement Litigator (admitted 2004)
Practice Areas:
Organic Chemistry; Polymer Chemistry; Materials Science and Engineering

Vice President

Fuminori HAYASHI

Fuminori HAYASHI

MANAGING PARTNER

Education:
Keio University (Bachelor of Engineering, 1990)
Qualification:
Patent Attorney (admitted 2007)
Practice Areas:
Electrical; Electronics; Communication Engineering

Patent Division 1

Naomi YOSHIDA

Naomi YOSHIDA

PARTNER

Education:
Tokyo Metropolitan University (Master of Science, Biology, 1995)
Qualification:
Patent Attorney (admitted 2000)
IP Infringement Litigator (admitted 2015)
Practice Areas:
Biotechnology; Pharmaceuticals, and Foods
External Activities:
Technical Adviser(Tokyo High Court including IP High Court)from April 2018 to March 2022
Chairperson of Biotechnology and Life Science Committee, JPAA (From April 2017 to March 2018)
Atsushi OKAWA

Atsushi OKAWA

SENIOR PARTNER

Education:
Stevens Institute of Technology (Master of Science, 1996)
Qualification:
Patent Attorney (admitted 2006)
IP Infringement Litigator (admitted 2016)
Practice Areas:
Organic Chemistry; Polymer Chemistry; Materials
Naoko KOJI

Naoko KOJI

PARTNER

Education:
Tsukuba University (Bachelor of Agriculture, 1988)
Qualification:
Patent Attorney (admitted 2004)
IP Infringement Litigator (admitted 2008)
Practice Areas:
Pharmaceuticals; Biochemistry
Ayako MATSUI

Ayako MATSUI

PARTNER

Education:
Japan Woman's University (Bachelor of Domestic Arts, 1986)
Qualification:
Patent Attorney (admitted 1993)
IP Infringement Litigator (admitted 2005)
Practice Areas:
Organic Chemistry; Polymer Chemistry; Materials
Hiroshi SATO

Hiroshi SATO

PARTNER

Education:
Tokyo University (Master of Science, Chemistry, 1993)
Qualification:
Patent Attorney (admitted 2002)
Practice Areas:
Organic Chemistry; Polymer Chemistry; Analytical Chemistry; Functional Materials; Electronic Materials; Cosmetic; Metal; Biotechnology
Atsushi OKAMOTO

Atsushi OKAMOTO

PARTNER

Education:
Chiba University (Master of Life Science, 2004)
Qualification:
Patent Attorney (admitted 2009)
Practice Areas:
Biochemistry; Pharmaceuticals
Katsuhiko KIMURA

Katsuhiko KIMURA

PARTNER

Education:
University of Massachusetts (Doctor of Engineering, Plastics Engineering, 1996)
Qualification:
Patent Attorney (admitted 2004)
Practice Areas:
Polymer Science; Polymer Processing; Organic Chemistry
Masafumi ICHIKAWA

Masafumi ICHIKAWA

PARTNER

Education:
Tokyo Institute of Technology (Master of Engineering, Biotechnology, 1998)
Qualification:
Patent Attorney (admitted 1998)
Practice Areas:
Biotechnology; Pharmaceuticals
Daiichiro Yokoi

Daiichiro YOKOI

PARTNER

Education:
Tokyo University (Master of Agricultural and Life Science, 2004)
Qualification:
Patent Attorney (admitted 2009)
IP Infringement Litigator (admitted 2013)
Practice Areas:
Pharmaceuticals; Biotechnology; Polymer Chemistry; Materials Science and Engineering
Goichi IKETANI

Goichi IKETANI

PARTNER

Education:
Tokyo Institute of Technology (Master of Chemistry, 1999)
Tsukuba Law School (Doctor of Jurisprudence, 2010)
Qualification:
Patent Attorney (admitted 2003)
IP Infringement Litigator (admitted 2018)
Practice Areas:
Organic Chemistry; Polymer Chemistry
Eri BUNYA

Eri BUNYA

Education:
Tokyo University (Doctor of Science, Molecular Biology, 2002)
Qualification:
Patent Attorney (admitted 2016)
Practice Areas:
Biotechnology; Pharmaceuticals
Chiharu SHIOIRI

Chiharu SHIOIRI

Education:
The Graduate University for Advanced Studies (Doctor of Science, Biology, 2003)
Practice Areas:
Polymer Chemistry; Biotechnology; Pharmaceuticals

Patent Division 2

Mitsumasa IHARA

Mitsumasa IHARA

PARTNER

Education:
Tokyo City University (Bachelor of Engineering, 1989)
Qualification:
Patent Attorney (admitted 2007)
IP Infringement Litigator (admitted 2010)
Practice Areas:
Electrical; Electronics; Communication Engineering
Yoshikazu TAKEI

Yoshikazu TAKEI

PARTNER

Education:
Nihon University (Bachelor of Engineering, 1993)
Qualification:
Patent Attorney (admitted 2000)
IP Infringement Litigator (admitted 2006)
Practice Areas:
Fluid Mechanics; Aeromechanics; Strength of Materials
Kazuo KAWAMURA

Kazuo KAWAMURA

PARTNER

Education:
Waseda University (Master of Applied Physics, 1991)
Qualification:
Patent Attorney (admitted 2018)
IP Infringement Litigator (admitted 2020)
Practice Areas:
Electrical; Electronics; Physics

Trademark & Design Division

Tomiyo NAKAMURA

Tomiyo NAKAMURA

PARTNER

Education:
Nara Women’s University (Bachelor of Science, 1992)
Qualification:
Patent Attorney (admitted 2013)
Practice Areas:
Trademark; Design; Copy right

Takako SHINODA

PARTNER

Education:
Ritsumeikan University (Bachelor of Law, 1994)
Qualification:
Patent Attorney (admitted 2013)
Practice Areas:
Trademark; Copyright