After graduating Hitotsubashi University, started working at cost accounting management section in the major heavy industrial company. He was assigned to subsidiary company in South America for 5 years. After returning to Japan, he became in charge of headquarter’s accounting policy coordination. After that, introduced SAP system into Japanese head office and a foreign subsidiaries. Retired in 2017 after accomplishing chief managing director of the defense business. From August 2018, assigned as a head of internal audit office in ispace.