Counsel Junko Tsuji

Osaka Bar Association, Japan Federation of Bar Associations (2000)
Japan Patent Attorneys Association (2012)


Location ： Osaka Office

Practice Areas

      Education & Professional Experience

      2015-2026
      Tsuji Law & Patent Office

      2008-2015
      Komatsu Law & Patent Office

      2003-2006
      H. Okada International Law Offices

      2002
      University of Washington School of Law (Seattle) (IP LL.M.）

      2000-2003
      Oh-Ebashi LPC & Partners

      1999
      Completed three academic years at Osaka University (currently, The University of Osaka) School of Law

      1993-1996
      Public Interest Incorporated Foundation Osaka Bioscience Institute

      1987-1991
      Sumitomo Chemical Co., Ltd. (currently, SUMITOMO CHEMICAL COMPANY, LIMITED)

      1987
      Kyoto University (B.S.)

      Activities

      2025-present　
      Expert Member, Agriculture Section of the National Research and Development Agency Council, Ministry of Agriculture, Forestry and Fisheries

      2025-present　
      Mediator, Arbitrator & Panelists Candidate, Japan Intellectual Property Arbitration Center

      April 2024-March 2025　
      IP Strategic Producer, IP Acceleration program for Startups (IPAS), The National Center for Industrial Property Information and Training (INPIT)

      2024-present　
      IP Advisor for Subsidized Projects, Ministry of Agriculture, Forestry and Fisheries

      2023-present　
      Part-time Lecturer of International IP Law, Doshisha University Graduate School of Law

      2022-present　
      Advisor of Training Institute, Japan Patent Attorneys Association

      2020-2022　
      Member, Trial and Appeal Practitioner Study Group, Japan Patent Office

      2019-2025　
      Member, Expert Committee for the Health and Medical Strategy Promotion, Cabinet Secretariat

      2018-present　
      Seminar Lecturer of Patent Infringement Litigations, Japan Intellectual Property Association

      2017-present　
      Member, Intellectual Property Center, Japan Federation of Bar Associations

      April 2017-March 2020, April 2024-present　
      Member, Patent Committee, Japan Patent Attorneys Association

      2017-2023　
      Member, Industrial Property Council, Japan Patent Office

      April 2017-present　
      Member, International Committee, Osaka Bar Association

      April 2016-March 2018　
      Member, Technical Standards Committee, Japan Patent Attorneys Association

      2016-present　
      Support Team for Legal Affairs Relating to Agriculture and Fisheries, Intellectual Property Lawyers Network Japan

      April 2016-March 2017　
      Executive Member, Osaka Bar Association

      April 2015- March 2017　
      Guest Professor, Intellectual Property Center, Osaka University

      April 2015- March 2018　
      Advisor for Measures against Counterfeit Damage, Japan Institute for Promoting Invention and Innovation

      2015-2017　
      Ad-hoc Member, Industrial Property Council, Japan Patent Office

      April 2016-March 2017　
      Vice Chairman, Biotechnology and Life Science Committee, Japan Patent Attorneys Association

      April 2013-March 2017, April 2020-present　
      Member, Biotechnology and Life Science Committee, Japan Patent Attorneys Association

      April 2013-March 2014, April 2015-March 2016　
      Lecturer of Competency Training, Japan Patent Attorneys Association

      April 2012-March 2016, 　
      Vice Chairman, Intellectual Property Committee, Osaka Bar Association

      April 2007-present　
      Member, Intellectual Property Committee, Osaka Bar Association

      2003-2007　
      Part-time Lecturer, Course of Management of Technology and Intellectual Property, Kyoto University Graduate School of Medicine

      Publications Archives

      2026.05.10
      A Multifaceted Examination of Legal Practice Related to Agriculture, Forestry, and Fisheries; Technology and Intellectual Property Related to Trees and Insects
      2026.01.30
      (Q67) Principle of Territoriality
      2025.12.10
      Examples of Intellectual Property and Business Strategies for Agricultural and Environmental Biotech Startups
      2025.01.20
      Article 10 (Orders to Protect Confidentiality); Article 11 (Rescission of Protective Orders)
      2025.01.10
      Decision of the Court of First Instance of the Unified Patent Court Central Division (Section Munich)on July 16 2024 — A Central Attack on a Patent for an Antibody Drug Characterized by Means
      2022.05.30
      Chapter 2: Data Transaction Contracts, II. Data Creation Contracts
      2020.09.10
      Analysis of Domestic Court Cases concerning Inventions Related to Computer Software (CS)
      2020.08.13
      Consideration on the Bill of the Act Partially Amending the Plant Variety Protection and Seed Act — For the Protection of New Varieties of Plants
      2019.12.10
      Appropriate Protection of AI and IoT-Related Inventions
      2019.09.14
      Q21: Protection through Patents in Agriculture, Forestry, Fisheries, and Food Industries
      2019.07.10
      A Case in Which Production, Transfer, etc. of Software was Found to Constitute Indirect Infringement of an Invention of a Device (Article 101, Item (ii) of the Patent Act)
      2019.05.30
      Q13: Inventiveness (4) — Methods of Business; Q42: Application (2) — Supporting Requirements, etc.; and Q76: Terms of Claims
      2019.05.10
      Analysis of Recent Trends in Case Court Cases Regarding Inventive Step
      2018.07.06
      7. Multiple Rightholders
      2018.05.28
      Transfer
      2017.09.29
      Q81: License (2)
      2017.09.29
      “Significant Effects” in Pharmaceutical Inventions as Seen in Recent Court Cases of Litigation Rescinding JPO's Trial/Appeal Decision Concerning Patent
      2015.03.20
      Chapter 2: Inoventive Steps in the Chemical and Pharmaceutical Fields
      2014.11.20
      Antibody Drugs: "Correction of Error" in a Claim That Includes Identification Based on Amino Acid Sequence
      2014.11.10
      U.S. Supreme Court Decision in the Myriad Case and Its Implications
      2014.09.05
      Article 10 (Orders to Protect Confidentiality); Article 11 (Rescission of Protective Orders)
      2013.08.10
      U.S. Supreme Court Decision in the Myriad Case (June 13, 2013) — Eligibility of Gene Patents as Subject Matter of Patent Protection
      2012.04.11
      Ⅲ-2. Claims by Multiple Rightsholders
      2011.10.05
      Scope of "Action Involving Patent Right" -- Freezing System Case
      2010.11.19
      Ⅲ. Exhaustion of Patent Right — Ink Cartridge Case
      2007.06.25
      Chapter 3, Section 1, Ⅲ. Research/Technology Service Contracts
      2004.12.01
      University-Spin-off Startups and Patent Management: Future Outlook

      Seminars/Lectures Archives

      2026.02.17
      JPAA Symposium Commemorating the 20th Anniversary of the Accreditation System for Conducting Specified Infringement Litigation Representation Services; Pannel Discussion "Recent Intellectual Property Infringement Litigations"
      2024.11.15
      Decision of the Court of First Instance of the Unified Patent Court, Central division (Section Munich) on July 16, 2024 459505/2023 (UPC_CFI_1/ 2023)
      2024.02.29
      U.S. Dispute Cases Involving Antibody-Drug Conjugate (ADC)
      2023.01.26
      Ideal Way to Protect Genetic Resources, Including Plant Varieties
      2022.09.26
      Fishery IP Event "Current State of Fisheries Industry and Direction of Fisheries Policy, and Latest Trends in IP Protection for High-Quality Strains and Other Fishery Resources"
      2021.11.27
      IPAJ 19th Annual Academic Conference JPAA Co-Sponsored Session "Protection of Plant Varieties Using Biotechnology"
      2021.10.21
      Judicial Symposium on Intellectual Property (JSIP) Tokyo 2021 -- IP Dispute Resolution in Asia -- Program by Ministry of Justice: "Civil Suits Involving Trademark Infringement"
      2020.11.30
      Court Case Study on Invention of Antibody Drugs Defined by Using Functional Descriptions
      2019.02.25
      MOBIO Seminar: "Legal Questions on IoT -- Points to Note in Using Data"
      2018.02.21
      JPAA Patent Committee Open Forum 2017: "Points to Note Concerning Patent Specifications Based on Recent Court Decisions -- From the Perspective of Patentability and Fulfillment Theory"
      2017.09.08
      Points to Note in Non-Disclosure Agreements
      2017.07.10
      Litigation Rescinding JPO's Trial/Appeal Decision in the Pharmaceutical and Biotechnology Fields -- Recent Court Cases
      2016.11.29
      Technical Standards and Intellectual Property
      2016.07.13
      Practice of Intellectual Property Infringement Litigation -- Focusing on Pharmaceutical, Biotechnology, and Chemical Fields
      2014.10.28
      Development of Trade Secret Protection in China
      2010.07.22
      Intellectual Property Training Seminar Series, 8th Session: "Multiple Rightsholders"
      2003.11.26
      Industry-Academia Collaboration Seminar, 1st Session: "Infringement of Rights and Litigation"

      Languages

      Japanese and English

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