Ohno & Partners

Firm Profile

Rankings

Asia-Pacific

Awarded leading firm in Asia-Pacific 2026

Chambers and Partners

Ranked Departments:

Chambers and Partners

Ranked Individuals:

Overview

Provided by Ohno & Partners

Ohno & Partners is a leading intellectual property boutique law firm in Japan. Its strong track record demonstrates its position as a leading patent practice in Japan. The firm has a strong presence and influence in the field of IP practice in Japan, as evidenced by its representation in almost 40% of the Intellectual Property High Court en banc cases (6 out of 16 cases).

Ranked Offices

Provided by Ohno & Partners

Address (A-Z)

Japan - Head office

Tokyo-to

Marunouchi Kitaguchi Bldg. 21F 1-6-5, Marunouchi Chiyoda-ku , Tokyo, Tokyo-to, Japan, 100-0005, Tokyo

www.oslaw.org

+ 81 3 5218 2330

Chambers Laurel

Ranked Departments

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Chambers Laurel

Ranked Individuals

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  • 1
    Seiji Ohno

    Intellectual Property: Bengoshi, Japan

Contributions

Latest contributions provided by Ohno & Partners

Global Practice Guide
Hirofumi Tada
Authored by
Hirofumi Tada
Article • Dec 2025

Ohno & Partners