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Law Firm Information

Firm NameKuribayashi Sogo Law Office
General PartnerTsutomu Kuribayashi
Address501 BUREX Kojimachi Bldg. 3-5-2 Kojimachi, Chiyoda-ku, Tokyo, Japan 102-0083
Office Hours9:30~18:00 (Closed on Saturdays, Sundays and National Holidays)
Contact Usinfo@kslaw.jp
Areas of Practice
  • International Transactions, Cross-Border Dispute Resolution
  • Litigation and Dispute Resolution
  • M&A・Business Succession
  • General Corporate Law
  • Bankruptcy and Civil Rehabilitation Proceedings
  • Personal Legal Consultations


  • Tokyo Metro Yurakucho Line / 2 min walk from Kojimachi Sta.Exit 1
  • Tokyo Metro Hanzomon Line / 3 min walk from Hanzomon Sta.Exit 2

Tsutomu Kuribayashi

Tsutomu Kuribayashi
Practice Areas

International transactions, Cross-border litigation, General legal and corporate affairs, M&A, Civil rehabilitation proceedings, Business succession, Issue of new shares

  • Tokyo Bar Association (1993 -)
  • New York State Bar Association (1999 -)
  • Tokyo Bar Association, International Committee (Deputy Chairman) (2001 - 2004)
  • Tokyo Bar Association, Vice President(2014-2015)
Professional Experience
1990Waseda University, Bachelor of Law
1993The Legal Training and Research Institute of The Supreme Court of Japan
1997University of Georgia, Law School, LL.M.
4/1993 - 3/2003Asahi Law Offices (Tokyo, Japan)(currently Nishimura Asahi Law Office) as a Partner Lawyer from 2002
8/1997 - 7/1998Haynes & Boone L.L.P (Texas, U.S.A.) as a foreign associate
4/2003 -Kuribayashi Sogo Law Office (Tokyo, Japan)
4/2014 - 3/2015Vice President at the Tokyo Bar Association
6/2014-External Director of kuzeCo., Ltd.
11/2015-10/2018Member of National Bar Examination Commission(International private law)
4/2018-3/2019Vice President of Kanto Federation of Bar Associations

  • Japanese Native
  • English Fluent

Tomohiko Sugiyama

Masahiro Ikeda
Practice Areas

General legal and corporate affairs, M&A, Business succession, International transactions, litigation

  • Tokyo Bar Association
Education / Professional Background
2014 Chuo University Law School
2017Admitted to the bar
Large Japanese company (listed 1st section of the Tokyo Stock Exchange)
August 2019Kuribayashi Sogo Law Office (Tokyo, Japan)

  • Japanese(Native)

This is Tomohiko Sugiyama, a newly joined lawyer at Kuribayashi Sogo Law Office. After graduated from Chuo University Law School and admitted to the bar, I joined large Japanese company (listed 1st section of the Tokyo Stock Exchange) as an in-house lawyer.
While I was working as an in-house lawyer, I was mainly in charge contract review, legal due diligence, and general meeting of shareholder. I dealt with various contracts; sales, leases, service, joint R&D, system development and joint venture contracts.
   I was fortunate enough to have a chance to work with board of directors and business management members of the company and through that experiences, I was able to learn the business mind which is difficult to learn as a lawyer.
   I hope I can make the most of my previous experience and provide better legal service to our clients.


I. Cross Border Transactions

We provide legal advice for trading partners of foreign companies concerning the conduct of their business in Japan.  When foreign companies need to translate documents from Japanese to English and vice versa it is essential that they understand Japanese law. On request, our Firm will communicate with clients, provide advice, and prepare contracts and other documents, all in English.

  • Assistance in establishing Japanese subsidies or branches.
    Legal advice concerning liquidation of a Japanese subsidiary or other withdrawal from Japan.
  • Preparation of filling or returns for submissions to, Tax offices, Labor Standards Bureau, and other government agencies.
  • Preparations in the following Agreements: Lease, Trading, Employment and others upon request.
  • Assistances in acquisition of Japanese companies, or a Japanese company acquiring a foreign company.
  • Advice concerning intellectual property rights and The Anti-Monopoly Law.
  • Preparation of legal opinions concerning Japanese law, all in English.
II. Cross-Border Dispute Resolution

Our Firm represents Japanese and foreign companies in various disputes resolution proceedings. These disputes can be resolved thought negotiation, litigation, arbitration, or other alternative dispute resolution method, which we deploy.

This is a list of some of the services that we have provided in English:

  • Representing foreign companies in litigation and arbitration proceedings in Japan.
  • Collecting sales receivables and loans.
  • Out-of-court discussions and negotiations to resolve disputes.
  • Preparation of settlement documents.
III. Litigation and Dispute Resolution

The Firm specializes in litigation, ADR, and other dispute resolution, and we have represented many domestic and foreign companies in these matters. In litigation between companies in Japan, it is crucial to have a solid understanding of the Companies Act, Financial Instruments and Exchange Act, and other Japanese laws, and when formulating a litigation strategy, an understanding of both substantive and procedural law is required. The Firm does not simply represent clients in litigation, ADR, and preservative proceedings: we strive to provide high value-added service that includes the development of litigation strategies, the gathering and preparation of evidence, the investigation of assets of debtors, the preparation of legal opinions, and other comprehensive advice concerning Japanese law. We give this the same level of attention in English.

IV. M&A Business Succession

The Firm provides legal advice to Japanese and foreign companies in assorted M&A matters, including acquisition of foreign firms by Japanese companies and of Japanese companies by foreign firms. In our M&A practice, we provide comprehensive support, in English, including preparation of confidentiality agreements, proposal of acquisition schemes, due diligence, contract negotiations, preparation of stock transfer agreements, and closing procedures. We also introduce acquisition target candidates, manage bid procedures, arrange acquisition financing from financial institutions, prepare and file notices to the Fair Trade Commission, Finance Bureau, and other government agencies, provide advice concerning restrictions on insider trading and tender offers under the Financial Instruments and Exchange Act, and provide advice concerning timely disclosures.

V. General Corporate Law

The Firm provides a range of legal services that are needed when Japanese and foreign companies do business in Japan. With regard to corporate management and operations, we believe that from the perspective of preventing future disputes, it is extremely important that attorneys take a Japanese legal perspective when they prepare contracts and other corporate documents. Firm attorneys with extensive business and legal knowledge prepare agreements giving full consideration to such matters as legal appropriateness, potential risks that the company faces determined from past experience, and business requirements. The Firm can prepare contracts in Japanese or English and can translate contracts into Japanese or English as needed. Some of the general corporate legal services that we provide are listed below.

  • Preparation of contracts and internal rules, translation of contracts and corporate documents
  • Advice concerning general shareholders meetings and board of directors meetings
  • Collection of loan claims and sales receivables
  • Equity finance and other financing
  • Advice concerning specific laws (Financial Instruments and Exchange Act, Anti-Monopoly Act, Unfair Competition Prevention Act, etc.)
  • Establishment of companies and branches, corporate registration, establishment of foreign subsidiaries
  • Compliance, crisis management
VI. Bankruptcy and Civil Rehabilitation Proceedings

The firm has experience with bankruptcy petitions for a wide range of companies including trading companies, IT firms, contract manufacturers, hotel operators, and real estate companies. In addition, Firm attorneys have been appointed as bankruptcy administrators by the court in many bankruptcy proceedings and have extensive experience in such regard.

The Firm represents both debtors and creditors in Japanese insolvency proceedings (bankruptcy, civil rehabilitation, corporate reorganization). When representing debtors, we provide representation for the bankruptcy petition as well as for debtor in possession reorganizations. When representing creditors, we file claims in bankruptcy proceedings, collect debts through enforcement of security interests, organize the creditors committee, and provide opinions concerning the bankruptcy proceedings.

Voluntary arrangement is commonly used as a means of liquidating the Japanese subsidiaries of foreign companies. The Firm can act as the debtor’s representative to negotiate with creditors, dispose of assets in Japan, finalize claims, and distribute residual assets. This can also be in English.

VII. Personal Legal Consultations

The Firm’s main services are corporate legal services in support of corporate operations, but we also frequently provide consultations concerning personal legal matters of the officers and employees of client companies such as divorce proceedings, criminal matters, and other legal issues. For divorce, inheritance, criminal matters, leases, and other matters involving an individual’s personal life, a specialist in the relevant area will hear the client’s circumstances and quickly determine an appropriate response. Areas in which we provide services include the following.

  • Divorce (including international divorce)
  • Inheritance (including probate procedures and international property succession)
  • Preparation and enforcement of wills
  • Criminal matters
  • Labor issues (including preparation of employment agreements and stock option agreements)
  • Leases and other real estate matters.

Our firm has experience in offering these services in English. We look forward to handling your English translation needs professionally, confidentially, and with great detail.

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