Yujiro Otsuka

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.

Otsuka Chemical Co., Ltd. engages in the production of chemicals and diet supplements. It provides inorganic salts, bromides, hydrazine, foaming agent, polymerization initiator, preparation articles, rust-preventive agent, fire retarding material, intermediates, and electro-organic synthesis products. The company was founded on August 29, 1950 and is headquartered in Tokyo, Japan.