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Okada Patents and Trademark Office, P.C.

English 日本語

Patent Attorney

Patent Attorney

  • President, Managing Partner, Patent Attorney

    MITSUYOSHI HATTORI

    [Mechanical Engineering]

    Qualified as Infringement Lawsuits Counsel

    Nagoya Institute of Technology
    -B.S., Mechanical Engineering, 1988-1992
    Nagoya University
    -M.S., Mechanical Engineering, 1992-1994
    NGK Spark Plug Co., Ltd. 1994-1999
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2000
    Registered Patent & Trademark Attorney since 2004
    Vice President of Okada Patent & Trademark Office, P.C. 2011-2016
    President of Okada Patent & Trademark Office, P.C. since 2016

  • Vice President, Partner, Patent Attorney

    TAKUMI SAKUMA

    [Mechanical Engineering]

    Kanazawa Institute of Technology
    -B.S., Mechanical Engineering, 1993-1997
    Tamadic Co., Ltd. 1997-2007
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2007
    Registered Patent & Trademark Attorney since 2010
    Junior Partner of Okada Patent & Trademark Office, P.C. 2016-2018
    Partner of Okada Patent & Trademark Office, P.C. since 2018
    Vice President of Okada Patent & Trademark Office, P.C. since 2020
  • KANAKO YASHIRO

    Junior Partner, Patent Attorney

    KANAKO YASHIRO

    [Trademark]

    Qualified as Infringement Lawsuits Counsel

    Tsuda College
    -B.A., International Relations
    Gained experience at patent law firms in Nagoya and Gifu
    Registered Patent & Trademark Attorney since 2004
    Assigned the position of vice-chairman of the Trademark Committee of the JPAA in 2006
    Assigned the position of vice-chairman of the Trademark Second Committee of the JPAA in 2011 and 2012
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2014
    Junior Partner of Okada Patent & Trademark Office, P.C. since 2016
    Assigned the position of vice-chairman of the Trademark Committee of the JPAA in 2017

  • Consultant, Patent Attorney

    TETSUO FUKUTA

    [Mechanical Engineering]

    Qualified as Infringement Lawsuits Counsel

    Nagoya City Technology High School
    -Major in Automobiles 1959-1962
    Nippon University
    -B.A., Law, 1972-1976
    Toyota Motor Corp. (Chief of 1st and 2nd Patent Divisions) 1962-2001
    Registered Patent & Trademark Attorney since 1982
    Joined and assumed Vice President of OKADA PATENT & TRADEMARK OFFICE, P.C. in 2001
    Lecturer on “Intangible Property Law” at Chukyo University since 2001
    Lecturer at Chukyo University, School of Law since 2005
    Chief Technology Officer of Okada Patent & Trademark Office, P.C. since 2011
    Consultant of Okada Patent & Trademark Office, P.C. since 2013

  • Consultant, Patent Attorney

    TORU ANDO

    [Physics]

    Qualified as Infringement Lawsuits Counsel

    Nagoya University
    -B.E., Applied Physics
    Registered Patent & Trademark Attorney since 1993.
    Toyota Boshoku Corporation
    -General Manager, Intellectual Property Department, Technical Administration Division
    Joined and assumed Vice President of OKADA PATENT & TRADEMARK OFFICE, P.C. in 2013.
    Part-time lecturer of intellectual property law
    -School of Law of Chukyo University 2013-2017
    -Department of Engineering of Chukyo University 2014-2020
    Consultant of Okada Patent & Trademark Office, P.C. since 2020

  • Patent Attorney

    NAOYA OHTA

    [Biotechnology]

    Qualified as Infringement Lawsuits Counsel

    Mie University
    -B.S., Agricultural Chemistry, 1989-1993
    -M.S., Biotechnology and Biochemistry, 1993-1995
    Cokey Co., Ltd 1995-1998
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2003
    Registered Patent & Trademark Attorney since 2004

  • Patent Attorney

    KEIICHI KATO

    [Biotechnology]

    Nagoya University
    -PhD, Bioagricultural Sciences, 2001
    Japan Society for the Promotion of Science, 2006
    -Postdoctoral Fellowship
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2006
    Registered Patent &Trademark Attorney since 2009

  • Patent Attorney

    MAKIKO NISHIWAKI

    [Architecture]

    Chubu University
    -B.E., Architecture
    Gained experience at several companies and a patent law firm in Nagoya
    Registered Patent & Trademark Attorney since 2018
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2019

  • Patent Attorney

    KOUJI MITANI

    [Optics]

    Tokushima University
    -B.E., Optics, 2002
    -M.E., Optics, 2004
    Phoenix Electric Co., Ltd. 2004-2020
    Registered Patent & Trademark Attorney since 2016
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2020

  • Patent Attorney

    TOMOKO ASAOKA

    [Organic Chemistry]

    Nagoya Institute of Technology
    -B.S., Materials Engineering, 1995
    Takanichi Co., Ltd, 1995-1997
    Gained experience at patent law firms in Gifu and Tokyo
    Registered Patent & Trademark Attorney since 2020
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2020

  • Patent Attorney

    SHINYA MURATA

    [Electrical and Electronic Engineering]

    National Defense Academy, Department of Electrical and Electronic Engineering
    -B.S.E.E., Electronics, 2004
    Gained experience at Japan Maritime Self-Defense Force, a patent law firm in Tokyo, and at IP department of a company
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2020
    Registered Patent & Trademark Attorney since 2020

  • Patent Attorney

    HIDEKI ISHIHARA

    [Electromechanical Engineering]

    Nagoya University
    -B.E., Electromechanical Engineering, 1993
    -M.E., Electromechanical Engineering, 1995
    Gained experience at several companies and patent law firm in Tokyo and Nagoya
    Registered Patent and Trademark Attorney since 2012
    Joined OKADA PATENT & TRADEMARK OFFICE, P.C. in 2021

  • Executive Advisor, Patent Attorney

    HIROSHI TAKENAKA

    [Mechanical Engineering]

    Qualified as Infringement Lawsuits Counsel

    University of Tokyo
    -B.S., Mechanical Engineering, 1977-1981
    Toyota Motor Corp.
    -General Manager of Patent Department No.1, temporary transfer to a German patent and Law Firm and Technical Center in the U.S. 1981-2004
    Registered Patent & Trademark Attorney since 1989
    Toyota Technical Development Corporation
    -Senior General Manager of Information Analysis Department 2005 – 2007
    JTEKT CORPORATION
    - General Manager of Intellectual Property Department, General Manager of Electric System Development Center, Technical Manager, Senior General Manager of Technical Head Office 2008 - 2014
    JTEKT CORPORATION
    - Member of the Audit and Supervisory Board 2014 – 2022
    Executive Advisor of OKADA PATENT & TRADEMARK OFFICE, P.C. since 2022

  • USPTO Registered Patent Attorney

    DIAMANTIS ALEXANDROS

    Emory University
    -B.S., Chemistry, 2006
    -M.S., Physical Chemistry, 2006
    Cordon of the Rising Sun for the Fifth Order of Merit -J.D., 2009
    New York University
    -M.S.E.E., 2015
    Licensed to practice Law in Massachusetts in 2009
    Licensed to practice Law in District of Columbia in 2010
    Registered Patent Attorney with the USPTO since 2010
    Joined Okada Patent & Trademark Office, P.C. in 2019

Technical staff

Total number of staff: 41 (as of April 1, 2021)
Introduction of our technical staff (as of April 1, 2021)

  • Technical staff

    M.S

    45 years of service, Textile engineering

  • technical staff

    N.I.

    39 years of service, Industrial chemistry

  • Technical staff

    M.S.

    32 years of service, Electrical engineering

  • Technical staff

    T.K.

    31 years of service, Metal

  • Technical staff

    T.O.

    20 years of service, Electronics

  • Technical staff

    K.F.

    18 years of service, Electrical engineering

  • Technical staff

    M.N.

    17 years of service, Mechanical engineering

  • Technical staff

    H.K.

    13 years of service, Applied Physics

  • Technical staff

    R.F.

    11 years of service, Electrical engineering

  • Technical staff

    H.A.

    10 years of service, Physics

  • Technical staff

    K.N.

    10 years of service, Applied physical engineering

  • Technical staff

    K.K.

    5 years of service, Biotic resources

  • Technical staff

    T.Y.

    4 years of service, Mechanical engineering

  • Technical staff

    T.K.

    2 years of service, Physics