Yoji has been involved in the medical business for over 15 years. He worked at Johnson & Johnson Group from 1999 - 2009, where he was in charge of marketing and public relations as a manager of large medical device sales and marketing communication for hospitals. He was CEO of Medical Research in Shin Nihon Medical Research Institute Co., Ltd. (Hong Kong). He also served as Deputy General Manager of Fujian Five Hertz Biology Technology Co., Ltd. and Five Hertz (Xiamen) Medical Supplies Co., Ltd. before becoming Executive Director at Kintaro Cells Power.
1999 - Graduated from Tohoku University Pharmaceutical College with a national qualification as a pharmacist