| September 1910 |
Dengyosha, originally engaged in electrical work, establishes Dengyosha Manufacturing Department for the purpose of manufacturing water turbines for hydropower generation and general electric power as well as a range of pumps. Dengyosha constructs a plant in Sekiguchi-Suido-cho, Koishikawa, Tokyo, and begins manufacturing. |
| May 1911 |
Dengyosha takes over large water turbine manufacturing operations from Shibaura Engineering Works, Ltd. |
| October 1915 |
Dengyosha incorporates and is renamed Dengyosha Water Turbine Works, Ltd. (Capitalized at 100,000 yen.) |
| September 1918 |
Dengyosha Water Turbine Works, Ltd. establishes a plant in Hatagaya, Yoyohata-machi, Tokyo and relocates its head office there. |
| December 1919 |
Dengyosha Water Turbine Works, Ltd. invests in and establishes Dengyosha Prime Move Works, Ltd. |
| February 1920 |
Dengyosha Prime Mover Works, Ltd. acquires Dengyosha Water Turbine Works, Ltd. |
| March 1955 |
Dengyosha Prime Mover Works, Ltd. establishes DMW Corporation (hereafter called DMW) upon full investment of 60 million yen. |
| June 1955 |
DMW divides Dengyosha Prime Mover Works, Ltd. into two sections: a water turbine section (related to the Tokyo Plant), and an industrial machinery section (related to the Mishima Plant) which includes pumps, blowers and diesel engines. The former section was taken over by Toshiba Corporation, and the latter taken over by DMW. |
| June 1955 |
Acquires stock of Fuso Commerce and Industry, Ltd. from Dengyosha Prime Mover Works, Ltd. |
| November 1957 |
Capital increased to 120 million yen. |
| December 1960 |
Capital increased to 240 million yen. |
| August 1961 |
Establishes Japan Union Pump Co., Ltd. as a joint venture with Union Pump Co. of the U.S. for the purpose of distributing Union Pumps. |
| October 1961 |
DMW is listed on the Second Section of the Tokyo Stock Exchange. |
| April 1962 |
Capital increased to 360 million yen. |
| December 1966 |
Capital increased to 540 million yen. |
| December 1969 |
Capital increased to 810 million yen. |
| November 1973 |
Additional test facilities for large pumps are installed at the Mishima Plant. |
| July 1979 |
DMW establishes Dengyosha Construction Co., Ltd for the purpose of construction and installation of DMW machinery. |
| April 1985 |
Fuso Commerce and Industry, Ltd. is renamed Dengyosha Shoji Co., Ltd. for the purpose of distributing machinery manufactured by DMW. |
| April 1987 |
DMW moves its head office to Kamata, Ota-ku, Tokyo. |
| April 1989 |
DMW relocates its head office to Omori-kita, Ota-ku, Tokyo. |
| November 1995 |
DMW constructs a new office building for administration and engineering at the Mishima Plant. |
| June 2001 |
DMW liquidates Union Pump Japan, Ltd. |
| April 2003 |
DMW relocates corporate functions (General Affairs Department and Accounting Department) to the Mishima Plant. (Head office is located in Tokyo under the Companies Act.) |
| June 2003 |
DMW establishes two subsidiary companies named Eco-advance, Inc. and Dengyosha Oridia, Ltd. |
| September 2005 |
DMW liquidates Dengyosha Shoji Co., Ltd. |
| March 2006 |
DMW liquidates Dengyosha Oridia, Ltd. |
| April 2007 |
DMW introduces an executive officer system. |
| September 2007 |
DMW declares a stock split (1:3). |
| March 2009 |
DMW establishes a new high-pressure pump / blower plant in Mishima Plant. |
| November 2014 |
DMW establishes a subsidiary company named DMW India Private in India. |
| June 2016 |
DMW becomes the first manufacturer in Japan to successfully commercialize an Energy Recovery System by the reverse osmosis method of seawater desalination (hereinafter ERS) and installs the first unit of an ERS at a seawater desalination plant in Okinawa, Japan. |
| February 2017 |
DMW's ERS (2-cylinder, 2-pressure-valve type energy recovery system for seawater desalination equipment) receives the JMF Chairman's Award at the 37th Energy-Efficient Machinery Awards. |
| February 2018 |
DMW's AM-Turbo (a multistage blower using an aluminum alloy impeller) receives the JMF METI Minister's Award at the 38th Energy-Efficient Machinery Awards. |
