About Us

Time Machine Underwriters is the first Managing General Agency (MGA) specialized in Warranty & Indemnity insurance in Japan.

Team

KOSUKE
INADA

稲田行祐

Kosuke Inada

CEO/CUO / Attonery at Law

Kosuke Inada is the founder and CEO/CUO of Time Machine Underwriters. Kosuke previously worked at Rakuten General Insurance as a senior executive officer in charge of CEO office and a chief underwriter of Warranty & Indemnity insurance, as well as Rakuten Insurance Holdings as an executive officer in charge of M&A. Prior to those positions, Kosuke was a partner at Chuo Sogo Law Office, where he advised clients on a wide range of corporate matters, including insurance, reinsurance, litigation and M&A. Kosuke also has experience in working as a deputy director at Insurance Dept of the Financial Services Agency of the Japanese Government. Kosuke holds a B.Ec from Waseda University and a LL.M from University of Southern California Gould School of Law. Kosuke wrote many books including “Practice of W&I Insurance” which is the first book on W&I insurance in Japan.

TOSHIFUMI
KAJIWARA

梶原俊史

Toshifumi Kajiwara

Underwriter/ Attorney at Law (admitted in Japan and New York)

Toshifumi Kajiwara is an underwriter of Time Machine Underwriters. Toshifumi previously worked at LINE Corporation as the head of legal & compliance department and the data protection officer as well as LINE Healthcare Corporation as a director. Prior to those positions, Toshifumi was an attorney at Clifford Chance Law Office, where he advised clients on a wide range of corporate matters, including M&A, capital markets, banking and derivative transactions, financial regulatory advice and litigation. Toshifumi holds a LL.B from Kyoto University, a J.D from Kyoto University Law School and a LL.M from University of Southern California Gould School of Law.

KOTA
SORIMACHI

反町公太

Kota Sorimachi

Underwriter / Certified Public Accountant

Kota Sorimachi is an underwriter of Time Machine Underwriters. Kota previously worked at Ernst & Young (EY), where he advised clients on a wide range of corporate accounting matters. Prior to that position, Kota worked at Mitsubishi Corporation and Frontier Management as a M&A and business turnaround adviser. Kota holds a B.Ec from University of Tokyo.

MINORI
OYAMA

大山みのり

Minori Oyama

Underwriter / Certified Public Accountant

Minori Ohyama is an underwriter of Time Machine Underwriters. Minori previously worked at the deals section of Pricewaterhouse Coopers Co., Ltd. (PwC) as an adviser of the M&A integration support and the financial due diligence. Prior to that position, Minori worked at Chuo Aoyama Pricewaterhouse Coopers, where she advised clients on a wide range of accounting matters, including the financial audit and the GAAP conversion. Minori holds a BA in international politics, economics and business from Aoyama Gakuin University and an MBA from University of Oxford Saïd Business School.

COMPANY INFORMATION

  • Company Name

    Time Machine Underwriters Inc.

  • Address

    THE MODULE roppongi 312, Roppongi 7-21-24, Minato-ku, Tokyo 106-0032 (Access Map

  • Representative Director

    Kosuke Inada

  • Business
    History

    We provide underwriting services on behalf of Mitsui Sumitomo Insurance Company as a MGA since 2021. Prior to that, we provided consulting services on product development and underwriting of Warranty & Indemnity insurance for Tokio Marine & Nichido Fire Insurance, Mitsui Sumitomo Insurance and Sompo Japan Insurance since our foundation in 2019.