Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records

Kosuke Hamaguchi

Suspended

Kosuke Hamaguchi is an attorney admitted to the New York State Bar in 2013, with a registered practice address in New York, New York. According to the New York Office of Court Administration, the current registration status on record is Suspended.

Registration number5088810
Bar statusSuspended
Year admitted2013
Judicial departmentDepartment 2
Law schoolUva School of Law
Practice cityNew York, NY
CountyNew York
Firm / organizationNagashima Ohno & Tsunematsu Ny Llp
Office address152 West 57Th Street 37Th Floor, New York, NY, 10019
Phone(646) 378-7763
Next registration dueMay 2027

About Nagashima Ohno & Tsunematsu

Nagashima Ohno & Tsunematsu is a law firm headquartered in Tokyo, Japan, formed on January 1, 2000 when two Japanese firms combined. It provides international and commercial legal services in Japan to domestic and foreign companies and organizations across many industry sectors. The firm reports several hundred lawyers, including lawyers qualified in jurisdictions outside Japan, who work in customized teams matched to each client matter.

Practice areas of Nagashima Ohno & Tsunematsu:

Corporate & M&A Banking & Finance Securities & Capital Markets Bankruptcy & Restructuring Commercial Litigation Arbitration & Mediation Intellectual Property Employment & Labor Real Estate White Collar & Investigations Energy & Infrastructure Entertainment & Media Antitrust & Competition Tax

These are the practice areas the organization describes on its website. They are not a statement about Kosuke Hamaguchi’s own practice or any specialty certification.

View the Nagashima Ohno & Tsunematsu profile and its 30 registered attorneys →

Office location

Registered office address on file with the New York State Bar. Verify before visiting, as the address reflects the contact on record and may be a firm rather than a personal office.

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Bar status can change at any time. For the authoritative, real-time status of Kosuke Hamaguchi, confirm directly through the official New York Attorney Search using the registration number above. This record is republished from public New York State data and is provided for reference only — it is not legal advice and not an endorsement.

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