Contact Us
Longzhi Yin
Director of Tokyo Office
Tel: (81)03-6263-2418
Fax: (852) 2827 1018

Working Team
Trademark Team, Overseas Representatives

Education and Training
B.A. in International Economics, Renmin University of China, 1986
Master degree in International Economics, Renmin University of China, 1989

Work Experience
Joined China Council for the Promotion of International Trade (CCPIT) in 1989, and worked as translator from 1989 to 1999
Served as the deputy representative and representative of the Japan Representative Office of CCPIT from 1999 to 2004
Joined China Patent Agent (H.K.) Ltd. as trademark attorney in 2004

Appointed as director of Tokyo Office in 2024

Service Area
Trademark Agency

Practice Area

Trademark Registration Consultation, Trademark Registration Application, Madrid International Registration Application , Application for Three-year Non-Use Cancellation, Review of Trademark Cancellation, Review of Trademark Refusal, Review of Disapproval of Trademark Registration, Trademark Opposition Application, Trademark Invalidation , Review of Madrid International Trademark Refusal, Opposition Against Madrid International Trademark Application, Trademark Administrative Review, Trademark Administrative Litigation, Trademark Civil Litigation, Administrative Protection Against Trademark Infringement (Investigation and Handling/Anti-Counterfeiting ), Trademark Search, Trademark Watch, Trademark Co-Existence Agreement (Letter of Consent) Negotiation, Trademark Trading/Assignment Negotiation, Domain Name Registration/Renewal/Transfer, Domain Name Arbitration (Domain Name Disputes), Copyright Recordation for Works, Copyright Recordation for Software, Copyright Civil Litigation, Administrative Protection Against Copyright Infringement , Customs Recordation of Intellectual Property Rights, Customs Protection of Intellectual Property Rights, Protection of Intellectual Property Rights at Exhibition, Criminal Protection of Intellectual Property Rights , Intellectual Property Strategy Consulting, Intellectual Property Protection Strategy, Intellectual Property Training, Intellectual Property Assignment, Intellectual Property Licensing, Intellectual Property Operation, Intellectual Property Value Assessment, Intellectual Property-Related Legal Advice, Intellectual Property Infringement Risk Assessment, Intellectual Property Infringement Analysis, Intellectual Property Infringement Investigation, Intellectual Property Due Diligence, Intellectual Property -Related Notarization, Internet and Social Media Intellectual Property Protection, Other Legal Matters Related to Intellectual Property, Renewal, Assignment, Changes and Subsequent Designation of Madrid International Registration , Intellectual Property-Related Dispute Resolution, Negotiation, Mediation and Arbitration, Intellectual Property Contract Drafting and Review, Risk Management and Loss Control


Chinese, Japanese, English

China Patent Agent (H.K.) Ltd.


22/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong Kong
Tel: (852) 2828 4688
Fax: (852) 2827 1018

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