Miyairi Valve Mfg. Co., Ltd.

MS brand that has safety




April, 1949
Miyairi Works Co., Ltd. was founded at Omori, Ota-Ku, Tokyo.
December, 1957
The factory was qualified and approved by QPL, USA.
May, 1958
The sales department was separated and became independent, and Miyairi Valve Sales Co., Ltd. was established.
July, 1959
Acquired a land of 186.332㎡ at the suburbs of Kofu City and started the construction of Kofu Factory as the 1st factory invited by Yamanashi Prefecture.
September, 1963
Listed in the Tokyo Stock Exchange Market Section 2.
May, 1964
Miyairi Valve Sales Co., Ltd. was merged, and the corporate name was changed to Miyairi Valve Mfg. Co., Ltd.
June, 1971
The Factory was designated as the plant approved by the Minister of international Trade and Industry(MITI).
August, 1996
Head office and Kofu Factory were qualified by ISO9001.
November, 2002
Entered into a business of LP-Gas Remote Observation System. Approved as a safety organization by the Ministry of Economy, Trade and Industry(METI).
July, 2010
Qualified by ISO14001.


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