April 1977 | Joined Sekaibunka Corporation |
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April 1979 | Joined Nihon FC Co., Ltd. |
April 1985 | Representative Director and President, Discover 21 Ltd. (Present Discover 21, Inc.) |
August 1989 | Director and President, Discover 21, Inc. |
June 2014 | Director, Japan Book Publishers Association |
January 2019 | Japan Representative Trustee, International Publishers Association |
December 2019 | Representative, Yumiko Hoshiba Office (Present) Retired as Director and President, Discover 21, Inc. |
May 2021 | Representative Director and President, BOW & PARTNERS Inc. (Present) |
June 2024 | Outside Director, Credit Saison Co., Ltd.(Present) |
December 2024 | Retired as Japan Representative Trustee, International Publishers Association |