About Otsuka

Our Leadership

Our board members and statutory auditors

Tatsuo Higuchi Chairman and Representative Director
Makoto Inoue President and Representative Director
Yoshiro Matsuo Executive Deputy President and Representative Director
Susumu Tamai Vice Chairman
Mikio Bando Managing Director
(Emerging Countries and OIAA Division*)
Shuichi Takagi Managing Director
(Business Strategy)
Toshiki Sudo Executive Director
(Research, Intellectual Property and Head of the Osaka Research Center for Drug Discovery)
Shinichi Taira Executive Director
(OIAA Division*, Production)
Akemi Kaneko Executive Director
(Quality Control and Quality Assurance)
Kiyoshi Taniguchi Executive Director
(Production , Supply Chain and CMC)
Yuko Makino Executive Director
(Finance)
Ichiro Otsuka Executive Director
Nobuo Kouno Standing Audit & Supervisory Board Member
Kazuya Inagaki Standing Audit & Supervisory Board Member
Takeo Suzuki Standing Audit & Supervisory Board Member
Hiroshi Sugawara Audit & Supervisory Board Member

* Otsuka International Asia Arab Division

As of March 8, 2023

Our corporate officers

Lyo Inuyama Executive Vice President, Director (Medical Affairs), PV Pharmaceutical Business Division
Keiso Yamasaki Senior Vice President, Associate General Manager (Pharmaceutical Business Division), and Director (Pharmaceutical Planning Department)
Hiroaki Ono Senior Vice President, General Manager (Headquarters of Clinical Development) and Regulatory Affairs
Akio Oikawa Senior Vice President, General Manager (Pharmaceutical Business Headquarters)
Nobuyuki Kurahashi Senior Vice President, Seconded to Otsuka Pharmaceutical D&C Inc.
Chikako Usami Vice President, Pharmaceutical Business Division Project Coordinator
Takayuki Shiratsuchi Vice President, Medical Discovery & Development Data Analyst (MD Analyst)
Takeshi Watanabe Vice President, Director (Department of Business Development)
Yoshihisa Yamada Vice President, Head of the Tokushima Research Center for Drug Discovery, and Department Head (Department of Renal and Cardiovascular Research)
Naoshi Satou Senior Vice President, Associate General Manager (Nutraceuticals Division), Director (Social Health Relations Department), and Director (Promotion and Advertisement Department) Nutraceuticals Division
Chiaki Sakurai Senior Vice President, Associate General Manager (Nutraceuticals Division), Sales Headquarters, Cosmedics Department and Otsuka Holdings
Shouzou Yamazaki Senior Vice President, Sales Development Department
Taro Mikuriya Senior Vice President, Seconded to Nardobel SAS
Tomitsugu Nakabayashi Vice President, Next-Generation Nutraceuticals Business Solution
Koichiro Nitta Vice President, Relational Marketing
Hajime Fujita Vice President, Seconded to Daiya Foods Inc.
Yoshihiro Bando Senior Vice President, New Area Development Otsuka International Asia Arab Division
Ryousuke Fukase Vice President, Nutraceuticals Business
Koichi Shiraishi Vice President, Associate (Nutraceuticals Business)
Toshihiro Tokumoto Senior Vice President, Tokushima Headquarters, Purchasing and Otsuka Holdings Productions
Ryo Harima Vice President, Deputy General Manager (Production)
Junichi Jinno Vice President, General Manager (CMC)
Kenji Bunya Senior Vice President, Director (Human Resources Department), Public Relations and Legal Affairs Headquarters
Tsuyoshi Nakamura Senior Vice President, Seconded to Otsuka America, Inc. and Finance and Accounting Department
Junichi Hashimoto Vice President, Director (Compliance Department)
Naoki Yoda Vice President, Director (Department of Business Planning Liaison)
Yoshihiro Yoshinaga Vice President, Director (Regulatory Affairs Department) and Administration Department
Hiroki Nakayama Vice President, Director (Audit Department) and Otsuka Holdings
Masaaki Sobe Vice President, Director (Intellectual Property Department)

Pharmaceutical Business Division

Lyo Inuyama Executive Vice President, Director (Medical Affairs), PV
Keiso Yamasaki Senior Vice President, Associate General Manager (Pharmaceutical Business Division), and Director (Pharmaceutical Planning Department)
Hiroaki Ono Senior Vice President, General Manager (Headquarters of Clinical Development) and Regulatory Affairs
Akio Oikawa Senior Vice President, General Manager (Pharmaceutical Business Headquarters)
Nobuyuki Kurahashi Senior Vice President, Seconded to Otsuka Pharmaceutical D&C Inc.
Chikako Usami Vice President, Pharmaceutical Business Division Project Coordinator
Takayuki Shiratsuchi Vice President, Medical Discovery & Development Data Analyst (MD Analyst)
Takeshi Watanabe Vice President, Director(Department of Business Development)
Yoshihisa Yamada Vice President, Head of the Tokushima Research Center for Drug Discovery, and Department Head (Department of Renal and Cardiovascular Research)

Nutraceuticals Division

Naoshi Satou Senior Vice President, Associate General Manager (Nutraceuticals Division), Director (Social Health Relations Department), and Director (Promotion and Advertisement Department)
Chiaki Sakurai Senior Vice President, Associate General Manager (Nutraceuticals Division), Sales Headquarters, Cosmedics Department and Otsuka Holdings
Shouzou Yamazaki Senior Vice President, Sales Development Department
Taro Mikuriya Senior Vice President, Seconded to Nardobel SAS
Tomitsugu Nakabayashi Vice President, Next-Generation Nutraceuticals Business Solution
Koichiro Nitta Vice President, Relational Marketing
Hajime Fujita Vice President, Seconded to Daiya Foods Inc.

Otsuka International Asia Arab Division

Yoshihiro Bando Senior Vice President, New Area Development
Ryousuke Fukase Vice President, Nutraceuticals Business
Koichi Shiraishi Vice President, Associate (Nutraceuticals Business)

Productions

Toshihiro Tokumoto Senior Vice President, Tokushima Headquarters, Purchasing and Otsuka Holdings
Ryo Harima Vice President, Deputy General Manager (Production)
Junichi Jinno Vice President, General Manager (CMC)

Headquarters

Kenji Bunya Senior Vice President, Director (Human Resources Department), Public Relations and Legal Affairs
Tsuyoshi Nakamura Senior Vice President, Seconded to Otsuka America, Inc. and Finance and Accounting Department
Junichi Hashimoto Vice President, Director (Compliance Department)
Naoki Yoda Vice President, Director (Department of Business Planning Liaison)
Yoshihiro Yoshinaga Vice President, Director (Regulatory Affairs Department) and Administration Department
Hiroki Nakayama Vice President, Director (Audit Department) and Otsuka Holdings
Masaaki Sobe Vice President, Director (Intellectual Property Department)

As of November 22, 2023