Attorneys

- Managing Partner -

Masaaki IIDA

Fields of specialization: Mechanical engineering, Trademark, Litigation

Education: Obtained a Bachelor's degree in Mechanical Engineering from The University of Tokyo

Career: Employed at Mitsubishi Motors Corporation
Qualified as patent attorney in 2001
Registered as specific infringement litigation representation in 2006
Committee Member of Japan Amusement Machine Patent association (2017-)

Member of: AIPPI JTA

- Senior Partner -

Masaki GOTOH

Fields of specialization: Mechanical engineering, Contract, Litigation

Education: Obtained a Bachelor's degree in Mechanical Engineering from Nihon University

Career: Qualified as patent attorney in1972
Contract attorney for Grunecker, Kinkeldey, Stockmair & Schwanhausser Law Firm (Germany)
Completed a short program at Washington University
Registered as specific infringement litigation representation in 2004

- Managing Partner -

Jun SUDOH

Fields of specialization: Mechanical engineering, Material, Design, Litigation

Education: Obtained a Master's degree in Mechanical Engineering from Ritsumeikan University

Career: Employed at IHI Corporation
Qualified as patent attorney in 2005
Registered as specific infringement litigation representation in 2010
Participation in a seminar at MewburnEllis LLP in UK

- Managing Partner -

Kenji MURASE

Fields of specialization: Electrical and Electronic engineering, Mechanical engineering, Control engineering, Trademark

Education: Obtained a Master's degree in Mechanical Engineering from Keio University

Career: Employed at Bridgestone Corporation
Qualified as patent attorney in 2006
Registered as specific infringement litigation representation in 2011

- Partner -

Yasushi KAMIYA

Fields of specialization: Mechanical engineering, Control engineering

Education: Obtained a Master’s degree in Mechanical Engineering from Yokohama National University

Career: Employed at Mitsubishi Materials Corporation
Qualified as patent attorney in 2014

- Partner -

Kei TAKEDA

Fields of specialization: Mechanical engineering, Control engineering

Education: Obtained a Master's degree in Mechanical Engineering from Tokai University

Career: Employed at Panasonic Corp.
Qualified as patent attorney in 2008

- Partner -

Kazutoshi OZAWA

Fields of specialization: Electrical and Electronic engineering, Communication engineering, Control engineering, Contract

Education: Obtained a Master's degree in Science and Technology from Keio University

Career: Employed at SKY Perfect JSAT Corporation
Qualified as patent attorney in 2013
Registered as specific infringement litigation representation in 2017

- Partner -

Tetsuo YOSHIDA

Fields of specialization: Mechanical engineering, Control engineering

Education: Obtained a Bachelor’s degree in Mechanical System Engineering from Gunma University

Career: Employed at Takata Corporation
Employed at Honda R&D Co., Ltd.
Employed at Hitachi Astemo, Ltd.
Qualified as patent attorney in 2012

- Partner -

Hiroyuki KANNO

Fields of specialization: Mechanical engineering, Control engineering, Patent search

Education: Obtained a Bachelor's degree in Engineering from Yokohama National University

Career: Employed at Nissan Diesel Motor Co.Ltd.（UD Trucks Corp.）
Employed at Japan Patent Office as a Examiner
Qualified as patent attorney in 2013

- Partner -

Yu　IMAMURA

Fields of specialization: Mechanical engineering, Electrical and Electronic engineering, Control engineering

Education: Obtained a Bachelor’s degree in Physics from Tokyo University of Science
Obtained a Master's degree in Materials Engineering from Tokyo Denki University

Career: Employed at an IP law firm in Tokyo
Qualified as patent attorney in 2009 (registered in 2017)

Member of: APPA

- Partner -

Takefumi FUJIHARA

Fields of specialization: Chemistry, Food Science, Mechanical engineering

Education: Obtained a Master's degree in Applied Chemistry from Keio University

Career: Employed at Hitachi Chemical Co., Ltd (Showa Denko Materials Co., Ltd)
Qualified as patent attorney in 2013

- Associate -

Naoshi KURODA

Fields of specialization: Electrical and Electronic engineering, Software, Image processing

Education: Obtained a Doctor of Philosophy (Ph.D.) degree in Applied Physics from The University of Tsukuba

Career: Employed at Japan Atomic Energy Agency
Employed at Tohoku University
Qualified as patent attorney in 2011

- Associate -

Kenichi SAEKI

Fields of specialization: Mechanical engineering, Patent search

Education: Obtained a Bachelor’s degree in Mechanical Engineering from Sophia University

Career: Employed at SMC Co.Ltd.
Employed at Japan Patent Office as a Examiner
Qualified as patent attorney in 2014

- Associate -

Takahiro DEGUCHI

Fields of specialization: Electrical and Electronic engineering, Image processing, Software

Education: Obtained a Ph.D. degree in Electrical Engineering from Waseda University

Career: Employed at Waseda University
Employed at Tokyo University of Science
Qualified as patent attorney in 2007
Employed at an IP law firm in Tokyo

- Associate -

Kenji SAITOH

Fields of specialization: Control engineering, Software, Material

Education: Obtained a Master's degree in Pure and Applied Sciences from The University of Tsukuba

Career: Employed at FUJIFILM Corporation
Qualified as patent attorney in 2017

- Associate -

Hideyuki SAEKI

Fields of specialization: Electrical and Electronic engineering, Communication engineering, Control engineering,
Mechanical engineering

Education: Obtained a Bachelor’s degree in Electronic Engineering from Tokyo Denki University

Career: Employed at KANADEN CORPORATION
Qualified as patent attorney in 2015
Registered as specific infringement litigation representation in 2017

- Associate -

Masaaki UEKI

Fields of specialization: Electrical and Electronic engineering, Control engineering, Mechanical engineering

Education: Obtained a Bachelor’s degree in physics from Tokyo University of Science
Obtained a Master's degree in physics from The University of Tokyo

Career: Qualified as patent attorney in 2020
Registered as specific infringement litigation representation in 2023

- Associate -

Ryotaro SATO

Fields of specialization: Mechanical engineering, Software

Education: Obtained a Master's degree in Mechanical Design and Production Engineering from Nagaoka University of Technology

Career: Employed at Taiyo Kogyo Corporation
Qualified at patent attorney in 2002
Deputy Director of the Intellectual Property Support Center (2015–2022)

- Associate -

Riku MATSUURA

Fields of specialization: Mechanical engineering, Electrical engineering, Control engineering

Education: Obtained a Master's degree in Mechanical Engineering from Keio University

Career: Employed at KUBOTA Corporation
Employed at Keio University
Qualified at patent attorney in 2025

- Associate -

Shoichi TAKAYAMA

Fields of specialization: Electrical and Electronic engineering, Control engineering, Software, Chemistry

Education: Obtained a Bachelor’s degree in physics from Waseda University

Career: Employed at an IP law firm in Tokyo
Qualified as patent attorney in 2014
Registered as specific infringement litigation representation in 2016

- Associate -

Norihiro AKIOKA

Fields of specialization: Mechanical engineering, Image processing, Design

Education: Obtained a Master's degree in Engineering from The Yokohama National University

Career: Employed at NTN Corporation
Qualified as patent attorney in 2014
Registered as specific infringement litigation representation in 2016
Registered as the Small and Medium sized Enterprise Consultant in 2022

Member of: LES JAPAN

- Associate -

Koichi TAKAHASHI

Fields of specialization: Software, Control engineering, Communication engineering

Education: Obtained a Bachelor's degree in Mathematics from Saitama University

Career: Employed at a patent firm in Tokyo
Qualified as patent attorney in 2005
Registered as a specified infringement litigation representative in 2016

- Associate -

Shinichi UEDA

Fields of specialization: Electrical and Electronic engineering, Communication engineering, Software, Control engineering

Education: Obtained a Master's degree in Electrical Engineering from Waseda University

Career: Employed at Panasonic Corp.
Qualified as patent attorney in 2012
Registered as specific infringement litigation representation in 2017

Member of: AIPPI

- Associate -

Kiyotaka TOTSUKA

Fields of specialization: Physics, Electrical and Electronic engineering, Mechanical engineering

Education: Obtained a Bachelor’s degree in physics from Yokohama City University

Career: Employed at MITSUMI ELECTRIC CO., LTD.
Qualified at patent attorney in 1995

Patent Attorneys

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