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History

November 1952
Founder, Shigetoshi Okauchi, established KYORITSU CHEMICAL-CHECK Lab., as a sole proprietorship and started business involving manufacturing of “pH Test Foils”, aspiring for prevailing “the simple water analyzer” that does not require complicated system, apparatus, or operation to use.
June 1959
KYORITSU CHEMICAL-CHECK Lab., Corp. is established.
1973
“Ion Selective Test Paper” and “PACKTEST” have been released. They are widely accepted among various industries, educational organizations, local government, and municipal offices.
September 1974
The High Precision Rapid Water Analyzer incorporating photoelectric photometer is sold.
September 1977
Lambda-9000, which is simplified photoelectric photometer with high operability is sold. Water Analysis Set for Total Cyanide (PAT.) is sold, and widely used among industrial wastewater management industry.
November 1980
Kanji Minami became President (later he changed his family name to Okauchi)
September 1991
Jointly developed with Shimadzu Corporation, the water analysis system utilizing small-sized spectrophotometer with high precision computer is sold.
November 2001
Instead of puncturing a hole to open the aperture of PACKTEST, the new method of pulling the line out is introduced.
December 2004
The portable “Digital PACKTEST” which displays the test result digitally is sold. Awarded for “New Technology Contest for Small to Medium Enterprises” at 17th Annual Ota Ward.
November 2005
Water Analysis Set for Oil is sold. Awarded for “New Technology Contest for Small to Medium
Enterprises” at 18th Annual Ota Ward.
September 2006
Digital Water Analyzer with multiple parameter “Lambda-9000” which came with improved
functionality, operability, convenience, and color LCD screen is developed and sold. Awarded for
“New Technology Contest for Small to Medium Enterprises” at 19th Annual Ota Ward.
October 2006
Digital PACKTEST・Multi with similar operating method as Lambda-9000 is developed and sold.
UV-Reactor using Ultraviolet Ray to decompose organic compound is developed and sold.
UV Reactor Set for Total Nitrogen/Total Phosphorus Measuring Set is developed and sold.
December 2006
UV Reactor Set for Total Nitrogen/Total Phosphorus Measuring Set is awarded for “New Technology
Contest for Small to Medium Enterprises” at 20th Annual Ota Ward.
September 2008
PACKTEST Lead is jointly developed with GL Science Inc. and is sold. Awarded for “New Technology
Contest for Small to Medium Enterprises” at 21st Annual Ota Ward.
June 2011
Supporting the Annual “Simultaneous Water Quality Check of Local Water Environment“ (It is the 8th year in 2011)
September 2011
Kanji Okauchi, President, is awarded for “2011 Technical Achievement Award”.
June 2012
Increased Capital to 40,000,000JPY.
Received equity participation by Tokyo Small and Medium Business Investment & Consultation Co., Ltd.
September 2012
Added more parameters under PACKTEST (currently 67 parameters available)
Added more parameters for Digital PACKTEST (currently 40 models available)
November 2012
"Soil Screening Set: Oil" has received "Award of Excellence" at Ota Ward 24th New Product/New Technology Contest for SME.
April 2013
Shuntaro Okauchi became President
Added more parameters under PACKTEST (currently 69 parameters available)
Added more parameters under PACKTEST·ZOOM (currently 4 parameters available)