Sadanobu Tobe

Otsuka Pharmaceutical Co. Ltd. engages in the manufacturing, distributing, exporting, and importing of pharmaceuticals, clinical testing equipment, medical device and equipment, food products, cosmetics, and other related products. Its operations are carried out through the following business divisions: Pharmaceutical Business and Nutraceutical Business. The Pharmaceutical Business division engages in the manufacture and sale of pharmaceutical products for the diagnosis and treatment of diseases. The Nutraceutical Business division provides nutritional products, cosmetics and medicines that support day-to-day health maintenance and improvement. The company was founded on August 10, 1964 and is headquartered in Tokyo, Japan.

Taiho Pharmaceutical Co., Ltd. engages in the production of drugs and medical products. It researches, innovates, and develops pharmaceuticals for various diseases. The company was founded on June 1, 1963 and is headquartered in Tokyo, Japan.

Otsuka Pharmaceutical Factory, Inc. manufactures and distributes pharmaceutical and nutritional products. Its products include medical foods, hine E-gel, processlead, engelead, innerpower, oronine h ointment, urepearl plus lotion 10 and urepearl plus cream. The company was founded on September 1, 1921 and is headquartered in Naruto, Japan.

Otsuka Estate YK operates as an investment holding Japanese company. The company is based in Osaka, Japan.

Otsuka America, Inc. operates as a holding company for Otsuka America Pharmaceutical. Its primary objective is to bring products to the U.S. market developed by Otsuka America Pharmaceutical's Japanese parent company, Otsuka Pharmaceutical Co., Ltd. Those products center on treating neurological and cardiovascular diseases. The company was founded in 1989 and is headquartered in San Francisco, CA.