Outside Director (Lead Independent Director)
- April 1974 Joined Tokyo Denki Kagaku Kogyo K.K. (currently, TDK Corporation)
- June 1996 Director, General Manager of Human Resources, TDK Corporation
- June 1998 Director and Senior Vice President, Executive Officer of Recording Media & Solutions Business Group, TDK Corporation
- June 2006 Director and Executive Vice President, Senior Executive Officer of Administration Group, TDK Corporation
- March 2008 Audit and Supervisory Board Member, GCA Savvian Corporation (currently, HOULIHAN LOKEY Corporation)
- June 2009 Director and Senior Vice President, Executive Officer of Strategic Human Resources and Administration Division, JVC KENWOOD Holdings, Inc. (currently, JVC KENWOOD Corporation)
- March 2011 Audit and Supervisory Board Member, SBS Holdings, Inc.
- April 2011 Professor at Teikyo University, Faculty of Economics/Department of Business Administration
- March 2015 Outside Director, SBS Holdings, Inc. (present)
- March 2016 Outside Director (Full-time Audit and Supervisory Committee Member), GCA Savvian Corporation (currently, HOULIHAN LOKEY Corporation)
- June 2016 Outside Director, Renesas Electronics Corporation (present)