Landscape Planner, Golden Gate International Exposition (GGIE), San Francisco, CA, 1939; United States Army, Master Sergeant, World War II; Partner, Donald Hardison and Associates, San Francisco, CA, 1952-1958; Partner, Hardison and Komatsu, Architects, San Francisco, CA. Partner, Hardison, Komatsu, Ivelich and Tucker, Architects, San Francisco, CA.

Member, City of El Cerrito, Planning Commission, El Cerrito, CA; Chair, City of El Cerrito, Design Review Board, El Cerrito, CA; Komatsu was invited to speak at a national conference of the National Association of Homebuilders (NAHB).

Fellow, American Institute of Architects (FAIA). Komatsu and his firm won an AIA award for the Student Center Complex, University of California, Berkeley (UCB).

B.Arch., University of California, Berkeley (UCB), Berkeley, CA, 1938.

His parents were Denzo Komatsu and Tome Fujimoto Komatsu.

His wife was Chisato Komatsu, known as Chris, who died before 2005.

His children were Richard S. Komatsu and Kathryn Komatsu Roderick. At their father's death in 2005, RIchard lived in Pleasant Hill, CA, and Kathryn in El Cerrito, CA.

President and Member of the Board, Contra Costa Chapter, Japanese-American Citizens League; Board of Directors, Richmond Art Center, Richmond, CA; Director and Vice President of the Richmond and San Francisco Kiwanis Clubs.