OKM products are ISO 9001-certified
(international quality assurance standard).
(international quality assurance standard).
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About OKM
Corporate History
Office-related information
| January 1902 | Saw cutting factory founded by Seitaro Okumura in Gamo Town, Shiga Prefecture |
|---|---|
| August 1952 | Transition to a factory specializing in valve cocks with expansions in manufacturing and sales |
| June 1962 | Company name changed to Okumura Engineering Works Co., Ltd. |
| June 1969 | Established and moved offices to new head office and factory |
| November 1975 | Completed construction of a large factory for machines |
| April 1980 | Established a new integrated assembly line for butterfly valves |
| October 1990 | Established OKM Valve Malaysia Sdn. Bhd. |
| August 1992 | Completed construction of a new factory |
| April 1993 | Company name changed to Okumura Engineering Corporation |
| October 1997 | Acquired ISO 9001 certification |
| June 1998 | Completed construction of a new head office |
| February 2003 | Established the Suzhou Okumura Valve Limited Company in China |
| December 2008 | Moved the Malaysia Factory to a new building |
| August 2018 | Acquired ISO 27001 certification |
| March 2019 | Established Shiga Higashiomi Factory in Higashiomi City, Shiga Prefecture |
Product Development
| May 1967 | Developed the Neo Pinch Valve |
|---|---|
| August 1977 | Developed the 515 Butterfly Valve |
| March 1982 | Developed the ML-515 Electronic Butterfly Control Valve |
| October | Developed the 5400 High-Performance Butterfly Valve |
| September 1984 | Developed the 336D Knife Gate Valve |
| June 1986 | Developed the VAVTROL-S1 Electronically Controlled Air Conditioning Valve |
| October 1988 | Developed the VAVTROL-S2 Electronically Controlled Air Conditioning Valve |
| July 1992 | Developed the 601A Aluminum Butterfly Valve Developed the 615X General-Purpose Butterfly Valve Developed the 606F Flange-Type Butterfly Valve |
| June 1993 | Developed the Jumbo Butterfly Valve |
| January 1995 | Developed the 336S Knife Gate Valve |
| November 1997 | Developed the 6424 Fire-Safe Butterfly Valve |
| August 1998 | Developed the 622H High-Pressure Butterfly Valve |
| March 1999 | Developed the 607F Flange-Type Butterfly Valve |
| October | Developed the VAVTROL-DN Electronic Butterfly Valve |
| June 2000 | Developed the 602 Aluminum Die Cast Butterfly Valve Developed the 336J Multi-Seat Type Knife Gate Valve |
| August 2001 | Developed the 618H High-Pressure Butterfly Valve |
| April 2002 | Developed the 612X General-Purpose Butterfly Valve Developed the 606K Flange-Type Butterfly Valve Developed the 603A Aluminum Die Cast Butterfly Valve (PPS Disc) Developed the 5410 High-Performance Butterfly Valve |
| April 2004 | Developed the 336J Knife Gate Valve |
| October 2005 | Developed the 111S, 110S, 121S, and 120S Wafer Check Valves |
| August 2006 | Developed the 603S and 612S butterfly valves for use with powders |
| April 2008 | Developed a marine hatch rotary sluice valve Developed the 111S, 110Z, 121S, and 120Z Wafer Check Valves |
| March 2010 | Developed the 618F | 622F High-Pressure Flange-Type Butterfly Valve |
| December 2011 | Developed the 635N Fluororesin-Lined Butterfly Valve |
| April 2016 | Developed the Exv series of Butterfly Valves for Marine Emission Control System |
| September 2016 | Remodel of the VAVTROL-DN Electronic Butterfly Valve |
| April 2017 | Developed the 637N Fluororesin-Lined Butterfly Valve |
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