|1945||Founded and opened business for the repair of measuring devices such as transits and other surveying instruments.|
|1957||Founded Limited Liability Company KOHZU Precision.|
|1959||Reorganized to Joint Stock Company KOHZU Precision Co.,Ltd.Katsuji Kohzu inaugurated as initial president.|
|1962||Began production of inspection devices for automobile lamps.|
|1963||Opened Kawasaki Factory in Miyamae-Ward,Kawasaki-City,Kanagawa-Prefecture.|
|1968||Began production and sales of complete laser optical devices.|
|1975||Delivered full-scale synchrotron radiation monochromators for the first time in japan to the Institute for Nuclear Study SOR facility in Tanashi.|
|1982||Started to deliver double crystal monochromators to synchrotron radiation facility in the National Laboratory for High Energy Physics in the Education Ministry.Continues to supply many monochromators and diffractometers.|
|1983||Delivered metre standard based on laser resonators to the National Research Laboratory for Metrology,
Agency of Industrial Sciences and Technology of the Ministry of International Trade and Industry.This became a measuring standard in Japan.
|1987||Specifications such as Precision XY stages were standardized.Began production of 3 CCD camera assembly system.
Soon thereafter,KOHZU became the standard in this field.
|1988||Delivered double crystal X-ray monochromators to
the National Synchrotron Light Source(NSLS)Facility at Brookhaven National Laboratory in the US.
|1992||Relocated Kawasaki Factory to Machida for business expansion.|
|1994||Delivered high heat load double crystal X-ray monochromator to radiation facility
in the Advanced Photon Source(APS)at Argonne National Laboratory in the US.
Delivered cam type double crystal X-ray monochromator to European Synchrotron Radiation Facility(ESRF).
Began production of LCD attachment and adjustment instruments for liquid crystal projector manufacturers.
|1996||Delivered standard type double crystal monochromator to large-scale synchrotron radiation facility "SPring-8".
|1997||Opened MontBlanc Building.Relocated headquarters.|
|1998||Opened Aioi Office in Hyogo-Prefecture.
Opened Machida Second Factory.
Increased production for KOHZU standard stages used for read-write head assembly for CD,MD and DVD.
|2000||Opened Osaka Branch in Mino-City,Osaka-Prefecture.|
|2002||Integrated and relocated the headquarters and factories
|2006||Multipurpose X-ray Imaging and Scattering diffractometer is in service at NASA's George W. Marshall Space Flight Center in Huntsville, Alabama.|
|2008||Osaka office is relocated to an expanded sales market in Yodogawa, Osaka.|
|2011||KOHZU Precision Co.,Ltd have been in business for 50 years.
Kohzu's stage was used for analysis of microparticulate which is collected by " asteroid probe Hayabusa ".
|2013||Got SonyGreenPartners approval for some products|
|2018||Got QualityManagementSystemStandard JIS Q 9001:2015,ISO9001:2015
The scope of the registration
Manufacturing and design:
Precision positioning device /Optical measuring device / Laser measurement system
/ X-ray experiment device for synchrotron facility