Office Guide


Firm Name TANI & ABE, p.c.
Address NO. 6-20, AKASAKA 2-CHOME, MINATO-KU, TOKYO 107-0052 JAPAN Access
TEL 81-3-3589-1201(Main)

81-3-3589-1206 (Main)

Brief History of the firm 1977 Tani Patent Office founded.
1990 Name change to : TANI & ABE.
2010 Business start as TANI & ABE, p.c.
Number of staff members 112 members
Number of Patent Attorneys 1 attorney-at-law, 1 U.S. Patent Attorney, 43 patent attorneys (as of August 1, 2015)

Type of Works


Patent/Utility Model Applications

Paris Convention Route Applications, Types of Registrations, Set Design, Partial Design, Icon/Font

Trademark/Service Mark Applications

Madrid Agreement and Protocol Applications, Paris Convention Route Applications, 3D Trademark, International Trademark Classification including Consultation of Goods, Trademark/Service Mark Search

Design Registration Applications

Paris Convention Route Applications, Types of Registrations, Set Design, Partial Design, Icon/Font

Appeal / Trial before the JPO

Appeal to the Final Rejection, Trial for Invalidation, Trial for Correction, Trial for Revocation of TM Registration


Opposition System, Advise Reasons for Opposition and Timing from Strategic Viewpoints

Expert Opinions

Expert Opinions on Infringement/Validity (Examples: Software including word/text processing, OS, Business methods, Computer, Telecommunication, Mobile cellular phone system, TV systems, Video games, Multi-broadcasting, Methods of fabricating semiconductors, IC cards, Laser discs, Compact discs, DVD, Digital cameras, Site management systems, Memo pad fabrication, Ink jet printer and ink, Recording paper, Optical fibers, Optical fiber connectors, Optical fiber ferrules, Optical devices including optical waveguide, Optical isolators, Surface waveguide, Optical stimulated-emission devices, Polyimide films, Large acrylic imitation silica stones, Polyester resin composition)


-Infringement Litigations
-Appeals against Appeal/Trial Board Decisions before the JPO (Examples: Digital Oscilloscope, Blue Light Emitting Devices, Computer Software, Pharmaceuticals, Polymer Materials)

Validity / State-of-the-art Search

Computer/Manual search, Patent/Non-patent literatures, Accept urgent order


-Negotiations for Licensing: Patent/Utility Model, Trademark/Service Mark, Design, Copyright, Software
-Drafting/Reviewing Contract Agreements: Patent/Utility Model, Trademark/Service Mark, Design, Copyright, Software
-English Text Filing


-Advise Arbitration and Mediation
-WIPO Arbitrator: Yoshikazu Tani
-Arbitrator of the Japan IP Arbitration Center: Yoshikazu Tani


Patent Policy/Strategy in Japan including Acquisition and Enforcement, Establishing Virtual Patent Division, IP Assessments/Evaluation, Introduction to Venture Capitals/Incubators, Lecturing: (IP Systems/Practices in Japan, How to build up patent portfolio, How to manage corporate presence in patent field in Japan, etc.)


Information (Prior art) Submission, How to expedite examination, Assignment of Application, Transfer of Patent / TM etc.