- KAWAGUTI & PARTNERS Home>
- Our People
Founder
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
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
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
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
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
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
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
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
PARTNER
- Education:
- Chiba University (Master of Life Science, 2004)
- Qualification:
- Patent Attorney (admitted 2009)
- Practice Areas:
- Biochemistry; Pharmaceuticals
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
PARTNER
- Education:
- Tokyo Institute of Technology (Master of Engineering, Biotechnology, 1998)
- Qualification:
- Patent Attorney (admitted 1998)
- Practice Areas:
- Biotechnology; Pharmaceuticals
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
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
- Education:
- Tokyo University (Doctor of Science, Molecular Biology, 2002)
- Qualification:
- Patent Attorney (admitted 2016)
- Practice Areas:
- Biotechnology; Pharmaceuticals
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
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
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
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
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
