History

August 1950Founded as a service shop in Japan for the hydraulic jet pipe automated control equipment from Askania in Germany
April 1953Establishment of SEIRITSU ENGINEERNG CO., LTD.
June 1953Start of manufacture and sale of hydraulic jet pipe automated control equipment
March 1959Start of manufacture and sale of all-electric automated control equipment, the electro-hydraulic actuator EOP series, and the hydraulic packaged controller COP series.
March 1966Start of manufacture and sale of Level Eye, an optical filled beverage bottle inspector.
March 1971Start of manufacture and sale of electric package controllers and electric actuators
December 1980Start of collaborative development with Tokyo Gas Co., Ltd. on variable port valves with variable capacity valves for trace gases.
Start of manufacture and sale of digital slight differential pressure indicators and other digital devices for boilers, industrial furnaces, and clean rooms
March 1981Collaborative development with Ishikawajima-Harima Heavy Industries Co., Ltd. on an automatic surge escape device and pressure control equipment for turbo compressors.
December 1981Start of manufacture and sale of Variable Functioner, a function computation unit with a microcomputer that allows user-defined output characteristics to be freely programmed.
October 1982Collaborative development with Mitsubishi Heavy Industries, Ltd on airflow modulators for combustion.
December 1985Development of meandering control systems for steel production lines and start of manufacture and sale of systems comprising sensors and servo units.
February 1986Start of manufacture and sale of PID system controllers with an on-board positioner including a microcomputer.
October 1992Start of development, manufacture, and sale of the electro-hydraulic actuator HOP series with switchable valves instead of a jet pipe.
August 1995Start of development, manufacture, and sale of New Level Eye, an X-ray filled beverage can inspector.
December 1998OKAYA & CO., LTD. became the main shareholder, and the name was changed to OKAYA SEIRITSU ENGINEERNG CO., LTD.
April 2004First delivery of hydraulic control equipment for furnace top pressure power generation at steel plants
June 2006Sales partnership with EMG (Germany) on steel production line controllers.
Start of sale of the strip guide system and steel plate inspection system.
September 2006Start of development, manufacture, and sale of high-performance, high-speed X-ray filled bottle inspector.
October 2007Obtained a qualification as a device, instrument, and apparatus installation and construction business under the Construction Business Act.
Permit number: Tokyo Governor’s permit (General – 19) No. 128960
November 2007Development of room pressure controllers with microcomputer control.
Start of manufacture and sale.
December 2007A new company building was constructed in Adachi, and headquarters and the factory moved to Ota.
February 2008First delivery of hydraulic control equipment for gate operations for drainage pump stations
March 2009Obtained ISO 9001:2000 certification.
February 2010Obtained the international standard certification for explosion-proof electro-hydraulic actuators.
March 2010Certification updated to ISO 9001:2008.
May 2010Development of X-ray filled bottle inspector (LE4-60).
Start of manufacture and sale.
January 2011Development of high-speed electro-hydraulic actuator (SST series) for steel plants.
Start of manufacture and sale.
March 2012Joined the ISPE (the International Society for Pharmaceutical Engineering).
September 2012Development of a new type of room pressure controller (PECL).
Start of manufacture and sale.
October 2013Development of a new type of electro-hydraulic actuator (SST3).
Start of manufacture and sale.
May 2014Achieved a record for small and medium-sized enterprises: 1,200 days without any accidents.
Received the bronze award from the Japan Industrial Safety & Health Association.
May 2014Established a laboratory for room pressure controllers (PCD).
December 2014Relocated the Osaka Branch and Hokkaido Office.
April 2015Shipped 54 hydraulic actuators with four different designs, such as the SST3, to Baosteel Zhanjiang Iron & Steel Co., Ltd. in China.
May 2015Development of room pressure controller (PEC-S).
Start of manufacture and sale.
May 2016Development of X-ray filled bottle inspector (LE4-70).
Start of manufacture and sale.
January 2018Certification updated to ISO 9001:2015.
November 2018Joined the Japan Industrial Furnace Manufacturers Association.
(Supporting member)