
| April 1977 | Joined Sekaibunka Corporation |
|---|---|
| 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 |