About Otsuka
Our Leadership
Our board members and statutory auditors
| Tatsuo Higuchi | Senior Executive Director and Chairman |
|---|---|
| Makoto Inoue | President and Representative Director |
| Yoshiro Matsuo | Executive Deputy President and Representative Director |
| Mikio Bando | Senior Executive Managing Director & Board Member (Emerging Countries and OIAA Division*) |
| Hiroaki Ono | Executive Managing Director & Board Member (Pharmaceutical Business Division) |
| Toshiki Sudo | Senior Executive Director & Board Member (Research and Intellectual Property) |
| Akemi Kaneko | Senior Executive Director & Board Member (Quality Control and Quality Assurance) |
| Kiyoshi Taniguchi | Senior Executive Director & Board Member (Production , Supply Chain and CMC) |
| Yuko Makino | Senior Executive Director & Board Member (Finance) |
| Ichiro Otsuka | Senior Executive Director & Board Member |
| Tarek Rabah | Senior Executive Director & Board Member |
| John Kraus | Senior Executive Director & Board Member |
| Jeff Boutelle | Senior Executive Director & Board Member |
| Takeo Suzuki | Standing Audit & Supervisory Board Member |
|---|---|
| Kazuya Inagaki | Standing Audit & Supervisory Board Member |
| Atsuo Kouno | Standing Audit & Supervisory Board Member |
| Hiroshi Sugawara | Audit & Supervisory Board Member |
* Otsuka International Asia Arab Division
As of June 5, 2025
Our corporate officers
| Nobuyuki Kurahashi | Senior Executive Vice President & Operating Officer, Associate General Manager (Pharmaceutical Business Division) | Pharmaceutical Business Division |
|---|---|---|
| Lyo Inuyama | Senior Executive Vice President & Operating Officer, Director (Medical Affairs), PV | |
| Akio Oikawa | Executive Vice President & Operating Officer, General Manager (Pharmaceutical Business Headquarters) | |
| Chikako Usami | Senior Vice President & Operating Officer, Pharmaceutical Business Division Project Coordinator | |
| Takayuki Shiratsuchi | Senior Vice President & Operating Officer, Medical Discovery & Development Data Analyst (MD Analyst) | |
| Takeshi Watanabe | Senior Vice President & Operating Officer, Director (Department of Business Development) | |
| Yoshihisa Yamada | Senior Vice President & Operating Officer, Head of the Tokushima Research Center for Drug Discovery, and Department Head (Department of Renal and Cardiovascular Research) | |
| Masako Shiosakai | Senior Vice President & Operating Officer, General Manager (Headquarters of Clinical Development) | |
| Masanori Kawasaki | Senior Vice President & Operating Officer, Associate General Manager (Research) and Head of the Osaka Research Center for Drug Discovery | |
| Chiaki Sakurai | Senior Executive Vice President & Operating Officer, Associate General Manager (Nutraceuticals Division), Sales Headquarters, Cosmedics Department and Otsuka Holdings | Nutraceuticals Division |
| Naoshi Satou | Executive Vice President & Operating Officer, Associate General Manager (Nutraceuticals Division) and Director (Social Health Relations Department) | |
| Koichiro Nitta | Senior Vice President & Operating Officer, Relational Marketing and Director (Sales Support Office) | |
| Hajime Fujita | Senior Vice President & Operating Officer, Seconded to Daiya Foods Inc. | |
| Ryousuke Fukase | Executive Vice President & Operating Officer, Nutraceuticals Business | Otsuka International Asia Arab Division |
| Yoshihiro Bando | Executive Vice President & Operating Officer, New Countries and ASEAN | |
| Taro Mikuriya | Executive Vice President & Operating Officer, Planning | |
| Koichi Shiraishi | Senior Vice President & Operating Officer, Nutraceuticals Business, China | |
| Ryo Harima | Senior Vice President & Operating Officer, Deputy General Manager (Production) and Purchasing | Productions |
| Junichi Jinno | Senior Vice President & Operating Officer, General Manager (CMC) | |
| Tatsuaki Ohashi | Senior Vice President & Operating Officer, General Manager (Diagnostic Division) | Diagnostic Division |
| Kenji Bunya | Executive Vice President & Operating Officer, Director (Human Resources Department) and Legal Affairs and Otsuka Holdings | Headquarters |
| Tsuyoshi Nakamura | Executive Vice President & Operating Officer, Seconded to Otsuka America, Inc. and Business Finance Department | |
| Junichi Hashimoto | Senior Vice President & Operating Officer, Director (Compliance Department) | |
| Naoki Yoda | Senior Vice President & Operating Officer, Director (Department of Business Planning Liaison) | |
| Yoshihiro Yoshinaga | Senior Vice President & Operating Officer, Director (Business Integrity and External Affairs) and Administration Department | |
| Hiroki Nakayama | Senior Vice President & Operating Officer, Director (Audit Department) and Otsuka Holdings | |
| Masaaki Sobe | Senior Vice President & Operating Officer, Director (Intellectual Property Department) | |
| Masayuki Sato | Senior Vice President & Operating Officer, Director (Portfolio Management Office) and Public Relations | |
| Masanori Udagawa | Senior Vice President & Operating Officer, Director (Corporate IT Department) and Otsuka Holdings | |
| Aki Sudo | Senior Vice President & Operating Officer, Compliance Department, Global Compliance and Otsuka Holdings | |
| Akihisa Kusumoto | Senior Vice President & Operating Officer, General Manager (Tokushima Headquarters) and Director (Administration Department at Tokushima Headquaters) |
Pharmaceutical Business Division
| Nobuyuki Kurahashi | Senior Executive Vice President & Operating Officer, Associate General Manager (Pharmaceutical Business Division) |
|---|---|
| Lyo Inuyama | Senior Executive Vice President & Operating Officer, Director (Medical Affairs), PV |
| Akio Oikawa | Executive Vice President & Operating Officer, General Manager (Pharmaceutical Business Headquarters) |
| Chikako Usami | Senior Vice President & Operating Officer, Pharmaceutical Business Division Project Coordinator |
| Takayuki Shiratsuchi | Senior Vice President & Operating Officer, Medical Discovery & Development Data Analyst (MD Analyst) |
| Takeshi Watanabe | Senior Vice President & Operating Officer, Director(Department of Business Development) |
| Yoshihisa Yamada | Senior Vice President & Operating Officer, Head of the Tokushima Research Center for Drug Discovery, and Department Head (Department of Renal and Cardiovascular Research) |
| Masako Shiosakai | Senior Vice President & Operating Officer, General Manager (Headquarters of Clinical Development) |
| Masanori Kawasaki | Senior Vice President & Operating Officer, Associate General Manager (Research) and Head of the Osaka Research Center for Drug Discovery |
Nutraceuticals Division
| Chiaki Sakurai | Senior Executive Vice President & Operating Officer, Associate General Manager (Nutraceuticals Division), Sales Headquarters, Cosmedics Department and Otsuka Holdings |
|---|---|
| Naoshi Satou | Executive Vice President & Operating Officer, Associate General Manager (Nutraceuticals Division) and Director (Social Health Relations Department) |
| Koichiro Nitta | Senior Vice President & Operating Officer, Relational Marketing and Director (Sales Support Office) |
| Hajime Fujita | Senior Vice President & Operating Officer, Seconded to Daiya Foods Inc. |
Otsuka International Asia Arab Division
| Ryousuke Fukase | Executive Vice President & Operating Officer, Nutraceuticals Business |
|---|---|
| Yoshihiro Bando | Executive Vice President & Operating Officer, New Countries and ASEAN |
| Taro Mikuriya | Executive Vice President & Operating Officer, Planning |
| Koichi Shiraishi | Senior Vice President & Operating Officer, Nutraceuticals Business, China |
Productions
| Ryo Harima | Senior Vice President & Operating Officer, Deputy General Manager (Production) and Purchasing |
|---|---|
| Junichi Jinno | Senior Vice President & Operating Officer, General Manager (CMC) |
Diagnostic Division
| Tatsuaki Ohashi | Senior Vice President & Operating Officer, General Manager (Diagnostic Division) |
|---|
Headquarters
| Kenji Bunya | Executive Vice President & Operating Officer, Director (Human Resources Department) and Legal Affairs and Otsuka Holdings |
|---|---|
| Tsuyoshi Nakamura | Executive Vice President & Operating Officer, Seconded to Otsuka America, Inc. and Business Finance Department |
| Junichi Hashimoto | Senior Vice President & Operating Officer, Director (Compliance Department) |
| Naoki Yoda | Senior Vice President & Operating Officer, Director (Department of Business Planning Liaison) |
| Yoshihiro Yoshinaga | Senior Vice President & Operating Officer, Director (Business Integrity and External Affairs) and Administration Department |
| Hiroki Nakayama | Senior Vice President & Operating Officer, Director (Audit Department) and Otsuka Holdings |
| Masaaki Sobe | Senior Vice President & Operating Officer, Director (Intellectual Property Department) |
| Masayuki Sato | Senior Vice President & Operating Officer, Director (Portfolio Management Office) and Public Relations |
| Masanori Udagawa | Senior Vice President & Operating Officer, Director (Corporate IT Department) and Otsuka Holdings |
| Aki Sudo | Senior Vice President & Operating Officer, Compliance Department, Global Compliance and Otsuka Holdings |
| Akihisa Kusumoto | Senior Vice President & Operating Officer, General Manager (Tokushima Headquarters) and Director (Administration Department at Tokushima Headquaters) |
As of June 5, 2025