About Denyo About Denyo
About Denyo

History of Denyo

July 1948 Established Japan Power Welding Machine Co., Ltd.
March 1959 Developed and manufactured high-speed engine-driven welders
December 1961 Completed construction on Saitama plant and began to manufacture engine-driven generators
February 1966 Developed sound-proof generators and began production of sound-proof engine-driven generators and welders
July 1966 Changed its corporate name to Denyo Co., Ltd.
July 1970 Completed construction on Shiga plant
April 1973 Began to manufacture engine-driven air compressors
March 1976 Established joint venture, P.T. Denyo Indonesia (currently P.T. Dein Prima Generator)  
April 1976 Completed construction on Fukui plant
February 1983 Denyo was listed on Second Section of the Tokyo Stock Exchange
December 1992 Established U.S. subsidiary, Denyo America Corporation
August 1995 Established joint venture, Denyo Manufacturing Corporation in U.S.A.
December 1997 Received ISO 9001 certification for Fukui plant
March 2000 Listed on the First Section of the Tokyo Stock Exchange
June 2000 Established Singapore subsidiary, Denyo Asia Pte. Ltd.
December 2006 Denyo moved to Nihonbashi-horidomecho
June 2007 Acquisition of Nishinihon Generator Mfg. Co., Ltd. (currently Nishihatsu Co., Ltd. ) as subsidiary
October 2007 Established subsidiary, Denyo Europe B.V. in the Netherlands
July 2009 Absorption-type merger of Denyo techno Service Co., Ltd. and Denyo Trading Co., Ltd.
May 2010 Established subsidiary, Denyo Vietnam Co., Ltd.
March 2013 Established Laboratory & Training Center in Sakado city, Saitama
February 2015 Began to manufacture engine-driven generators, with the completion of the second factory in Denyo Vietnam Co., Ltd.
February 2020 Established subsidiary, Denyo Trading Vietnam Co., Ltd.
April 2022 Transited to Prime Market in Tokyo Stock Exchange
March 2023 Established Service Center Kanto in Sakura city, Chiba