History

August, 1950

Founded as a service shop in Japan for hydraulic jet pipe type automatic controllers by ASKANIA, Germany.

April, 1953

Established SEIRITSU ENGINEERING CO., LTD.

June, 1953

Started manufacturing and selling hydraulic jet pipe type automatic controllers.

March, 1959

Started manufacturing and selling full-electronic automatic controllers, electro-hydraulic actuators , and hydraulic packaged controllers .

March, 1966

Started manufacturing and selling the optical filled bottle inspector of " Level Eye" for use with bottled beverages.

March, 1971

Started manufacturing and selling electric packaged controllers and electric actuators.

December, 1980

Co-developed variable capacity valve for trace of amounts of gases of the " Variable Port Valve" with Tokyo Gas.

Started manufacturing and selling digital differencial pressure indicators and other electronic instruments for boilers, industrial furnaces, and clean room.

March, 1981

Co-developed automatic anti-surge systems and pressure controllers for turbo compressors with Ishikawajima-Harima Heavy Industries.

December, 1981

Started manufacturing and selling the function calculator of Variable Functioner that is equipped with a microcomputer.

October, 1982

Co-developed combustion air volume controller with Mitsubishi Heavy Industries.

December, 1985

Developed strip guiding system for steel production lines and started manufacturing and selling overall systems that include sensors, servo units, etc.

February, 1986

Started manufacturing and selling system controllers integrated PID controller and positioner with microcomputer.

October, 1992

Developed a direction control valve type electro-hydraulic actuator as a substitute for the jet pipe type and started manufacturing and selling it.

August, 1995

Developed the X-ray type New Level Eye as a filled bottle inspector for use with canned beverages and started manufacturing and selling it.

December, 1998

OKAYA & CO., LTD. became the top shareholder and was renamed as OKAYA SEIRITSU ENGINEERING CO., LTD.

April, 2004

Delivered the first hydraulic controller for furnace top pressure recovery power generation at steel mill.

June, 2006

Sales tie-up with EMG, Germany in the field of steel production line control.
Started selling strip guide system and steel strip inspection system.

September, 2006

Developed high-performance and high-speed X-ray type filled bottle inspectors and started manufacturing and selling them.

October, 2007

Obtained qualification for installing machinery and apparatus in accordance with the Japanese Construction Industry Act.

Qualification No.: Permitted by Governor of Tokyo (General-19) 128960

2August, 2007

Developed a room pressure controller with a microcomputer. Started manufacturing and selling it.

December, 2007

New company building was completed in Adachi-ku and the headquarters factory transferred from Ota-ku.

February, 2008

Delivered the first hydraulic controller for opening/closing the water gates of drainage pump stations.

March, 2009

Obtained ISO9001: 2000 certification.

February, 2010

Obtained international standard certification for an explosion-proof type electro-hydraulic actuator.

March, 2010

Upgraded to ISO9001: 2008.

May, 2010

Development of X-ray bottle level checker (LE4-60) and started manufacturing and sales.

January, 2011

Development of high speed electro-hydraulic actuator (SST series) for steel mills and started manufacturing and sales.


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