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Headquarters factory


Niigata Minami Factory


March 1985

January 1988

April 1988

January 1991

October 1999

October 2002

November 2003

September 2004

January 2005

July 2014

June 2017

August 2018

September 2018

Operation started at the same time as the completion of the first factory building

Expand material warehouse

Increased capital to 30 million yen

Completion of the second factory building

High-pressure sodium lamp section ISO9002 acquisition (1996 version)

High-pressure sodium lamp section ISO9001 acquisition (2000 version)

Quartz processing division ISO9001 acquisition makes it subject to company-wide ISO

Obtained ISO14000

Completion of the 4th factory building

Established Niigata Minami Factory in Minami-ku, Niigata City

Headquarters factory ISO14001 / ISO9001 revision (2015 version)

Niigata Minami Factory ISO14001 acquisition (2015 version)

Niigata Minami Factory ISO9001 acquisition (2015 version)


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