Koichi Tsujii
Recognized in Best Lawyers since 2009 About Koichi Tsujii
Koichi Tsujii is a lawyer based in Tokyo, JP and has been recognized in The Best Lawyers in Japan™ since 2009. Koichi Tsujii is recognized in the following practice areas:
- Tokyo, Japan
- Corporate and Mergers and Acquisitions Law
- Intellectual Property Law
- Patent Law
- Technology Law
Current Firm: Nakamura & Partners
Location: Tokyo, JP
Nearby Lawyers
Kentaro Minato is a top attorney recognized by Best Lawyers in the practice area(s) of International Arbitration and Litigation. Kentaro, who practices law in Tokyo, Japan, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kentaro is held by other top lawyers in the same geographic and legal practice area.
Ian S. Scott is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law, Media and Entertainment Law and Sports Law. Ian S., who practices law in Tokyo, Japan, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ian S. is held by other top lawyers in the same geographic and legal practice area.
Jun Oishi is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance and Development Practice and Real Estate Law. Jun, who practices law in Tokyo, Japan, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jun is held by other top lawyers in the same geographic and legal practice area.
Junya Ae is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust / Competition Law. Junya, who practices law in Tokyo, Japan, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Junya is held by other top lawyers in the same geographic and legal practice area.
Yoshiko Koizumi is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust / Competition Law, Corporate and Mergers and Acquisitions Law and Corporate Governance and Compliance Practice. Yoshiko, who practices law in Tokyo, Japan, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Yoshiko is held by other top lawyers in the same geographic and legal practice area.
Ken Kiyota is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law. Ken, who practices law in Tokyo, Japan, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ken is held by other top lawyers in the same geographic and legal practice area.
Takashi Soga is a top attorney recognized by Best Lawyers in the practice area(s) of International Business Transactions and Trade Law. Takashi, who practices law in Tokyo, Japan, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Takashi is held by other top lawyers in the same geographic and legal practice area.
Yuri Suzuki is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Financial Institution Regulatory Law and FinTech Practice. Yuri, who practices law in Tokyo, Japan, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Yuri is held by other top lawyers in the same geographic and legal practice area.
Michael C. Graffagna is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance and Development Practice. Michael C., who practices law in Tokyo, Japan, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael C. is held by other top lawyers in the same geographic and legal practice area.
Explore and Learn
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Can a Green Card Be Revoked?
by Bryan Driscoll
Revocation requires a legal basis, notice and the chance to respond before status can be taken away.
How Far Back Can the IRS Audit You?
by Bryan Driscoll
Clear answers on IRS statutes of limitations, recordkeeping and what to do if you are under review.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Can You File Bankruptcy on Credit Cards
by Bryan Driscoll
Understanding your options for relief from overwhelming debt.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.
