1974 - 2002 Mitsubishi Heavy Industries, Ltd. Hiroshima Research & Development Center
1974 - 2002 Researcher, Hiroshima Research& Development Center, Mitsbishi Heavy Industries,Ltd.2002-2002 Professor, Ryukyu University2002-2003 Professor, Okinawa National College of Technology
日本工学教育協会
, 腐食防食協会
, 日本溶接協会
, 日本機械学会
, 高温学会
, 溶接学会
, Japan Society of Corrosion Engineering
, Japanese Society for Engneering Education
, High Temperature Society of Japan
, Japan Society of Mechanical Engineers
, Japan Welding Society