About RKC

Our History

 

1937

Established in Tokyo as AH Laboratories.
Developed vacuum thermocouples for measuring high frequency current.

1939

Moved to the current location and built a new factory.
Changed company name to Tokyo Rika Kogyo Kenkyusho K.K.
1943

Changed the company name to the current name Rika Kogyo K.K.
1944

Company was registered as Rika Kogyo K.K. (Legally established)
1946

Developed a bimetal type temperature controller for baking ovens.
Developed a surface temperature indicator HP9.
1952 Developed a temperature controller PV-1 with a built-in electronic tube, one of the first practical 
temperature controllers.
1963

Built a head office building at the current location.
1968

Built a factory in Ibaraki prefecture.
Developed a melt pressure sensor CZ-1P
1969

Started export. Appointed distributors in the U.S., Hong Kong and Taiwan.
1971

Expanded the Ibaraki factory.
1978

Developed MD-51 and MF-51 heat/cool type temperature controllers that contribute to energy saving.
1982

Developed REX-C1000, one of the world’s first digital controllers with PID Autotuning.
1983

Developed REX-Z2000, one of the first multi-zone temperature controllers.
1987 Awarded by Director-General, Science and Technology Agency for the contribution to the temperature control applications.

Developed an extrusion line process controller FAREX-E1
1994

Developed an epoch making modular controller FAREX-SR Mini.
1997

Accredited by ISO9001.
1999

Developed F9000, a highly accurate controller with high resolution.
2001

Accredited by ISO14001.
2002

Expanded Ibaraki factory and built a new building.
Developed digital controllers with fast sampling: SRX and HA400 / HA900
Developed a digital controlled single phase power controller THV-1.
2004

Developed digital handheld thermometer DP-700.
Developed high performance controllers FB400 / FB900.
2006

Developed a modular controller SRZ.
2007 Built a new head office building at the current location.
2008

Developed digital controllers RB100 / RB400 / RB900.
Accredited by JCSS (Japan Calibration Service System) as an accredited calibrator (category: temperature).
2009

Developed a program controller PF900.
2015

Developed digital controllers RZ100 / RZ400.

2016

Developed advanced controllers FZ110 / FZ400 / FZ900.
2019 Developed program controllers PZ400 / PZ900.
2020 Developed program controllers GZ400 / GZ900.