Paul Weiss

Fukoku Seimei Building 2F, 2-2, Uchisaiwaicho 2-chome
Chiyoda-ku, Tokyo 100-0011, Japan
81-3-3597-8101 (direct)
81-3-3597-8120 (direct fax)


A resident partner in the firm's Tokyo office, Kaye Naoko Yoshino has assisted Japanese and non-Japanese companies in a wide range of matters, from advising on cross-border corporate transactions to providing support in connection with U.S. regulatory and civil litigation matters and internal investigations.


Representative regulatory and internal investigations matters include:

  • Representation of a multi-national company in an international corruption investigation;
  • Representation of an executive in a criminal price-fixing investigation;
  • Representation of a significant Japanese financial institution in U.S. regulatory proceedings;
  • Representation of a pharmaceutical company in an off-label marketing investigation and related whisteblower litigation; and
  • Representation of U.S. and Japanese companies in internal investigations involving allegations of violation of the Foreign Corrupt Practices Act, price-fixing and other alleged misconduct.

Representative corporate matters include:

  • Oaktree Capital Management's $1.3 billion sale of its aircraft leasing company, Jackson Square Aviation, to Mitsubishi UFJ Lease and Finance Co., Ltd.;
  • Mitsui Sumitomo Insurance Co. Ltd. (MSI)'s acquisition of 26 percent of Max New York Life Insurance Company, a leading life insurance company, for Rs 27.3 billion (approximately $530 million);
  • Janus Capital Group Inc.'s strategic alliance with The Dai-ichi Life Insurance Company, Limited, the third-largest life insurer in Japan;
  • Citigroup's acquisition of Nikko Cordial for $14 billion;
  • Citigroup's disposition of the retail brokerage business of Nikko Cordial for $7.9 billion to Sumitomo Mitsui Banking Corporation;
  • Citigroup's sale of NikkoCiti Trust and Banking Corporation to Nomura Trust and Banking Co., Ltd; and
  • Dainippon Sumitomo Pharma Co., Ltd.'s acquisition of Sepracor Inc., a Nasdaq-listed pharmaceutical company, for $2.6 billion.

Having been raised in both Japan and the U.S., Kaye is bilingual and at home in both cultures. She is registered as a gaikokuho jimu bengoshi in Japan.



  • J.D., Harvard Law School, 1997
    cum laude
  • M.A., Harvard University
  • B.A., Harvard College
    summa cum laude


  • Japanese

Bar Admissions

  • New York

See Library Tab for articles, publications and presentations by Kaye Yoshino

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