In April 1979, he joined IBM Japan. In January 2005, he promoted to System i business unit head. In April 2007, he joined Zensho Co., Ltd. as executive officer and group IT head (current). In June 2008, he was appointed as Representative Director & President of Global IT Service Co., Ltd. (current). In October 2011, he continued to assume the same roles of Zensho Co., Ltd after establishment of Zensho Holdings Co., Ltd. In December 2017, he also assumed Group Technology Head of Zensho Holdings Co., Ltd. (dual role). In November 2018, he was appointed as executive officer and group IT & Engineering head (after merger of the two functions in Zensho Holdings).