Society
May 2004, The Japan Society of Abrasive Technology
Mar. 2006 The Japan Society for Precision Engineering
Aug. 2013 The Japan Society of Mechanical Engineers
Association
Sep. 1991 Japan Testing Machinery Association
May 2004, The Japan Society of Abrasive Technology
Mar. 2006 The Japan Society for Precision Engineering
Aug. 2013 The Japan Society of Mechanical Engineers
Sep. 1991 Japan Testing Machinery Association