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DEPARTMENT PROFILE

Abe, Ikubo & Katayama

Intellectual Property

5 ranked lawyersBand 1JapanGlobal 2021 View ranking table

Chambers Review

Chambers Research is conducted by 200 Research Analysts, across 200 jurisdictions and provides nearly 6,000 rankings tables. Annually we collect hundreds of thousands of responses from clients, the majority via in-depth interview. Learn more about our methodology.

What the team is known for

Market-leading practice with a proven track record defending multinationals in litigation centring on IP infringement and invalidation actions. Takes on high-profile cases in respect of patents and offers strong technical knowledge in fields such as biotechnology, chemicals, telecommunications and electronics. Has noted expertise in pharmaceuticals and the automotive sector, and is highly proficient in representing clients before the Japan Patent Office as well as the IP High Court and the Supreme Court. Also able to assist clients with patent portfolio management and protection strategy.

Notable practitioners

Eiji Katayama is a leading practitioner in the market whose engineering background serves his patent litigation and patent invalidation practice well. One market source asserts that "he is one of the best IP lawyers," while another interviewee agrees that "he is a very well-known person in the field."

Junichi Kitahara is a well-regarded patent attorney whose contentious practice covers the pharmaceutical, medical device and technology sectors. "He is an excellent lawyer," declares one satisfied client.

Makoto Hattori is dual-qualified in Japan and New York, and represents clients in a range of patent and trade secrets litigation. One impressed interviewee observes that "he has a lot of good experience in the area of copyright in addition to other areas of IP."

Mami Hino has significant prior expertise as a pharmacist and regularly handles patent litigation. "She can provide a lot of effective and useful advice to us," explains one grateful client, who concludes: "I think that she is a very good patent lawyer."

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Ranked Lawyers

Chambers Research is conducted by 200 Research Analysts, across 200 jurisdictions and provides nearly 6,000 rankings tables. Annually we collect hundreds of thousands of responses from clients, the majority via in-depth interview. Learn more about our methodology.

Japan

Intellectual Property: Domestic


Eiji Katayama
Band 1
Junichi Kitahara
Band 4
Makoto Hattori
Band 4

Intellectual Property: Domestic Firms: Patent Specialists


Eiji Katayama
Band 1
Mami Hino
Band 1