Kaken Pharmaceutical Co., Ltd. engages in the research, development, manufacture, and sale of pharmaceutical products, medical devices, agrochemicals, and animal health products in Japan. Its operations are carried out through the Pharmaceutical and Real Estate business segments. The Pharmaceutical segment mainly manufactures and sells pharmaceuticals, medical devices and agricultural chemicals. The Real Estate segment rents real estate related to Bunkyo Green Court. The company was founded in March 1917 and is headquartered in Tokyo, Japan.