Yoshiyuki Fujiwara

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 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.

Diatranz Otsuka Ltd. manufactures pharmaceutical products. Its product, DIABECELL, is used to treat type1 diabetes. The company was founded on November 11, 2011 and is headquartered in Auckland, New Zealand.

Otsuka Pharmaceutical India Pvt Ltd. manufactures and markets intravenous nutrition products. Its products include infusion therapy, parenteral nutrition and plasma volume expanders. The company is headquartered in Ahmedabad, India.