Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

Key contacts
Managing Partner: Takanori Abe
Key practice areas
Copyright & related rights
Intellectual property
Trade mark
Patent
Trade mark disputes - domestic firms
Patent disputes - domestic firms
Firm overview

ABE & PARTNERS works in wide areas of international and corporate matters with a focus on intellectual property law and international commerce. The patent litigations that ABE & PARTNERS has participated in to date, covers the fields of pharmaceuticals, chemistry, electronics and machinery, which involve advanced technology such as biotechnology, semiconductors, etc., and which are cross-border matters. Our firm has extensive experience on representing and advising multinational and domestic clients in pharmaceutical industry and is currently involved in the drastic battle between brand pharmaceutical companies and brand pharmaceutical companies and also the one between brand pharmaceutical companies and generic companies. Our firm also have experience of IP due diligence in pharma M&A between big pharma.

Mr. ABE, managing partner of ABE & PARTNERS, is currently a Guest Professor of Osaka University Graduate School of Medicine and formerly a lecturer of The University of Tokyo Graduate School of Medicine and Faculty of Medicine.  He is an arbitrator in Japan and sit on various positions in Japanese medical/pharmaceutical societies.

Network Memberships: AIPLA, INTA, IBA, AIPPI

 

Practice Areas & Sector Specialisations

Practice areas:

  • Copyright & related rights
  • Designs
  • IP transactions
  • Life sciences
  • Patent contentious
  • Patent litigation
  • Patent strategy & counseling
  • Trade mark contentious
  • Trade mark litigation
  • Trade mark strategy & counseling

 

 Industry sectors:

  • Agriculture
  • Artificial intelligence
  • Biotechnology
  • Chemistry
  • Computer technology & services
  • Electrical
  • Electronics
  • Food & beverage
  • Gaming
  • Healthcare
  • ICT & software
  • Life sciences
  • Nanotechnology
  • Pharmaceutical
  • Real estate
  • Semiconductors
  • Telecommunication
  • Tobacco
Address:
Matsushita IMP Building, 1-3-7, Shiromi, Chuo-ku
Osaka
540-0001
Tel:+81669491496 Web Address:http://www.abe-law.com/en/
2026 Edition
Patent disputes - domestic firms
Other Notable Firms
13 firms ranked
View full list

Tier 1

Abe Ikubo & Katayama
11 practice areas
View profile
Anderson Mori & Tomotsune
10 practice areas
View profile
Nakamura & Partners
4 practice areas
View profile
TMI Associates
12 practice areas
View full profile

Tier 2

Kubota
8 practice areas
View profile
Yuasa and Hara
8 practice areas
View full profile

Tier 3

Nagashima Ohno & Tsunematsu
9 practice areas
View profile
Nishimura & Asahi
11 practice areas
View profile
Ohno & Partners
7 practice areas
View profile
Uchida & Samejima Law Firm
4 practice areas
View profile

Other Notable Firms

ABE & Partners
6 practice areas
View full profile
Mori Hamada
13 practice areas
View profile
Oh-Ebashi LPC & Partners
10 practice areas
View profile
Overview

Abe & Partners is a general law firm with extensive expertise in IP disputes and IP transaction practices. The firm has strengths in the pharmaceutical and life science fields. The team consists of attorneys-at-law and patent attorneys who support clients in dispute resolution matters.

Notable patent practitioners: Takanori Abe, Isamu Kotobuki, Kaoru Ochiai

Testimonials

2026

"They provide very thoughtful, sound legal advice. They are very responsive, and unafraid to challenge the client's incorrect information. I prefer that outside counsel be very direct and provide unvarnished advice."

"Takanori Abe demonstrated an excellent command of the law and a practical understanding of the courts.  Tremendous amount of experience."

"Takanori Abe is an accomplished and tenacious litigator.  What's great is that he is willing to go up against the major Japanese pharma companies which most Japanese firms won't do."

Linked Reviews
Patent

Case studies demonstrate that the team successfully managed an invalidation action and a patent opposition at the Japan Patent Office on behalf of pharmaceutical clients.

1 results1 results
The Japanese IP system has vulnerable evidence collection procedures in comparison with foreign countries.
Shionogi is the owner of a patent entitled Pyrimidine Derivatives (JP2648897). X filed a request for a trial for invalidation of the patent. Nippon Chemiphar intervened in the trial as a plaintiff, and AstraZeneca UK intervened in the trial in order to support the defendant.
Sponsored

Sponsored

MIP Sponsored