From Sigma:
Announcement: New CEO of Sigma Corporation
We would like to announce that Kazuto Yamaki, previously Chief Operating Officer, was appointed as Chief Executive Officer of Sigma Corporation.
Name and Biography of New Chief Executive Officer
New Job Title: Chief Executive Officer
Name: Kazuto Yamaki
Date of Birth: March 22nd, 1968
Biography
April, 1993 joined Sigma Corporation
November, 2000 Manager of Corporate Planning Division
November, 2003 Vice-President
November, 2005 Chief Operating Officer
January, 2012 Chief Executive Officer
Date of Assumption of Office
January 18th, 2012, Wednesday