LAWYER PROFILE
Yasufumi Shiroyama

Yasufumi Shiroyama

Asia-Pacific 2026

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Anderson Mori & Tomotsune
 Anderson Mori & Tomotsune

Ranked in 2 practice areas

Intellectual Property: Bengoshi

Japan

4 years ranked

Life Sciences

Japan

9 years ranked

About

Provided by Anderson Mori & Tomotsune

Practice Areas

Patent litigation. In particular he regularly represents both local and foreign clients for patent litigation in various technology areas, including telecommunication and life science, as well as advising on other types of disputes and transactions in relation to intellectual property.

Career

Admitted in Japan (1994)

Professional Memberships

Dai-ichi Tokyo Bar Association, Japan Patent Attorneys Association, AIPPI Japan, LES Japan, INTA.

Personal

The University of Tokyo (LLB, 1992); University of California, Davis (LLM, 1998)

Chambers Review

Provided by Chambers

Chambers Asia & Pacific

Intellectual Property: Bengoshi - Japan

Band 1
Individual Editorial

Yasufumi Shiroyama heads Anderson Mori & Tomotsune's intellectual property practice group and is well regarded for his expertise in IP litigation, acting for a range of leading international companies. He regularly handles patent infringement disputes in district and appellate courts in Japan.

View ranking table

Life Sciences - Japan

Band 2
Individual Editorial
Yasufumi Shiroyama is a key member of the life sciences team, utilising his IP expertise to handle patent disputes in this sector.
Learn more about this teamView ranking table

Strengths

Provided by Chambers

  • He performed at the highest level with his quick understanding of our company, excellent judgment on personnel selection and timelines and easy-to-understand explanations to non-legal employees.

    Intellectual Property: BengoshiChambers Asia & Pacific

  • Mr. Shiroyama brings careful consideration of the client's commercial goals and delivers insightful, practical advice in furtherance of the same.

    Intellectual Property: BengoshiChambers Asia & Pacific

  • He has a wealth of experience in patent cases in the pharmaceutical industry, and we have a sense of trust in him on the cases we cannot afford to lose.

    Life SciencesChambers Asia & Pacific

Ranked Individuals at Anderson Mori & Tomotsune (59)

Asia-Pacific Region

Japan

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