| 1973 | Joined Daiwa Securities Co., Ltd. |
| 1979 | Appointed as Executive Vice Pesident of Daiwa Securities International Co., Ltd.
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| 1983 | Appointed as an Advisor for BIA (Brunei Investment Agency)
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| 1989 | Assinged as President of Daiwa Securities Singapore Limited.
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| 1997 | Appointed as a Director of SIMEX (current Singapore Exchange Limited)
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| 1999 | Appointed as an Advisor of MAS (Monetary Authority of Singapore) |
| 1999 | Appointed as an Executive Officer of Daiwa Securities Group Headquarters in charge of Asia and Oceania.
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| 2001 | Appointed as Chairman of Daiwa SMBC Europe Limited.
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| 2003 | Appointed as an Executive Officer of Daiwa SMBC Co., Ltd. in charge of Overseas [Europe and Middle East].
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| 2005 | Appointed as a Senior Managig Executive Officer of NIF Ventures Co., Ltd.
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| 2008 | Appointed as Director and Chairman of Capital Partners Co., Ltd.
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| 2010 | Appointed as the Representative Director and Chairman of Asia Connect Co., Ltd.
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| 2013 | Appointed as an Outside Auditor of ITbook Co., Ltd.
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| 2015 | Appointed as an Outside Director of ITbook Co., Ltd. |
| 2016 | Appointed as an Outside Auditor of Something Holdings Co., Ltd. |
| 2018 | Appointed as an Outside Director of Something Holdings Co., Ltd.
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| 2021 | Appointed as a Director of Something Holdings Co., Ltd.
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| 2021 | Appointed as a Director of ITbook Co., Ltd. |
| 2021 | Appointed as a Director of NXTech Co., Ltd.
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| 2021 | Appointed as a Director of Mirai Co., Ltd.
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| 2021 | Appointed as a Director of M&A Max Co., Ltd.
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| 2021 | Appointed as a Direcotor of Geosign Co., Ltd.
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| 2022 | Appointed as Representative Director and President of NXTech Co., Ltd.
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| 2022 | Appointed as Representative Director and President of ITbook Technology Co., Ltd.
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| 2022 | Appointed as Executive Vice President of ITbook Holdings Co., Ltd.
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| 2023 | Appointed as a Director of I-need Co., Ltd.
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| 2025 | Appointed as Representative Director and President
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| 2025 | Appointed as Chairman of Directors of NXTech Co., Ltd.(current position)
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| 2025 | Appointed as Chairman of Directors (current position)
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