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Time Machine Underwriters names Shikatani CFO, adds Yamamoto as underwriter

The pair join from Yamap Nature-Insurance and AIG General Insurance respectively, bringing accountancy and legal backgrounds to the W&I specialist
Time machine underwriters names shikatani cfo adds yamamoto as underwriter  rein asia
July 6, 2026

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1 min read
The Inaugural Recognising excellence in Asia's insurance industry Find out more Entries close
28 August

Japan-based managing general agent (MGA) Time Machine Underwriters has appointed Shuko Shikatani as chief financial officer and underwriter, and Sumiyo Yamamoto as underwriter, Kosuke Inada, the company’s founder and CEO, announced on Monday.

Shikatani joins the specialty warranty & indemnity (W&I) MGA after serving as executive officer responsible for finance and regulatory relations at Yamap Nature-Insurance. Earlier, he worked in the insurance advisory practice at PwC Japan. He is also a certified public accountant.

Meanwhile, Yamamoto previously served as senior legal counsel at AIG General Insurance Company. Earlier in her career, she practised as an attorney with Anderson Mori & Tomotsune and Tokei Partners, advising clients on corporate matters including mergers and acquisitions and litigation.

The Inaugural Recognising excellence in Asia's insurance industry Find out more Entries close
28 August

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