June 1923

Hirose Ironworks Co.was established in Nakamachi,Hikone City.
The production and sales of vaiv cocks were started.

September 1943

Washino Valve Cock Co., Ltd. was established with capital of ¥600,000.
Facilities were expanded at Torahime-cho,Asai-gun, Shiga Prifecture.
It was designated as a Military Control Plant and engaged in favrucatioin of valves and steam traps for military use.

March 1946

As the war ended,the facilities of the Torahime Plant were moved to the present plant site.

June 1950

The name of Washino Valve Cock Co., Ltd. was changed to Hirose Valve Industry Co., Ltd.

December 1954

Indicatin of Japanese Industrial Standards was permitted.
Permisson No.3568 from the Ministry of International Trade and Industry.

November 1961

Award of outstanding enterprise was granted by the Director of Medium and Small Enterprises Agency as result of an examination of medium and small size companies.

August 1962

The Company succeeded in the development of a hydraulic stop valve and started sales.

October 1962

A Tokyo business office was opened.

March 1965

A Osaka business office was opened.

March 1970

Capital was increased to ¥15milion.

October 1970

Capital was increased to ¥48milion.
Osaka Medium and Small Enterprise Investment and Promotio Co. made the investment thereby.

November 1971

Capital was increased to ¥100milion.
Medium and Small Enterprise Investment and Promotio Co. made the investment thereby.

February 1997

Certified by L.R.(LLOYD’S REGOSTER QUALITY ASSURANCE) to conform to the quality system standard ISO9001.

March 1998

A Hydoro-lab was opened.

February 2003

2000 year edition certification ISO 9001.

May 2003

The name change to central office from headquarteres office.

March 2007

Water pressusure test stand equipment introduction.

March 2010

2008 year edition certification ISO 9001.

October 2015

Head office and factory moved.
The character “Valulu-kun“ was created!