1970, Bachelor's, Electrical Eng., Faculty of Engineering, Univ. of Tokyo, Japan; 1979, MSc, Comp. Eng., Dept of Comp. Sci., Stanford Univ. 1970, joined Hitachi; 2003, Vice-President and Executive Officer; 2004, Senior Vice-President and Executive Officer. Officer; 2005, Chairman and Chief Executive Officer, Hitachi Global Storage Tech.; 2006, Executive Vice-President and Executive Officer, Hitachi; 2009, Representative Executive Officer, Executive Vice-President and Executive Officer, Hitachi; Chairman of the Board, Hitachi Global Storage Technologies; 2010, Representative Executive Officer, President and Director, Hitachi; 2016, Executive Chairman, Hitachi.