Company History
- April 1977
- Sigma Koki Co., Ltd. founded in Tabame, Hidaka-cho, Iruma-gun, Saitama Prefecture (now Hidaka-shi, Saitama Prefecture) for manufacture and sales of laser-related optical equipment.
- May 1982
- Head office relocated to new head office facilities and factory at Harajuku, Hidaka-cho, Iruma-gun, Saitama Prefecture (now Hidaka-shi, Saitama Prefecture).
- January 1983
- Exports to United States begin.
- April 1983
- Manufacture and sales begin for motorized positioners.
- October 1984
- First edition of general catalog of standardized products released. Non-store sales operations begin.
- November 1986
- Tokyo sales office opens in Narimasu, Itabashi-ku, Tokyo, strengthened sales for motorized positioners.
- March 1989
- Noto Plant established in Noto Industrial Park in Ishikawa Prefecture. This plant became eligible for a grant created by Ishikawa Prefecture's advanced industry promotion ordinance.
- July 1990
- Head office and main factory functions relocated to new head office building and factory in Shimotakahagi-shinden, Hidaka-cho, Iruma-gun, Saitama Prefecture (now Hidaka-shi, Saitama Prefecture).
- June 1992
- Osaka sales office opens in Nishi-nakanoshima, Yodogawa-ku, Osaka, strengthening sales for the Kansai area.
- January 1993
- Kanazawa Technology Center opens in Tomizu-cho, Kanazawa-shi, Ishikawa Prefecture.
- June 1993
- Shanghai Sigma Koki Co., Ltd. established for mass porduction of laser-related optical products.
- August 1994
- In a move seeking to expand sales, Tokyo sales office relocated to larger facilities at Higashi-nippori, Arakawa-ku, Tokyo.
- July 1995
- OptoSigma Corporation established, primarily for the manufacture and sales of optical equipment in the US.
- October 1995
- New Technology Center opens in Yatsukaho, Matto-shi, Ishikawa Prefecture. The new facility integrates the Kanazawa Technology Center.
- November 1996
- Company stock registered with the Japan Securities Dealers Association for over-the-counter stock offering. Capital increased to 999,750,000 yen through sales of stocks to the general public.
- August 1997
- Head office building and factory expanded to boost production of optical polished products.
- January 1998
- New factory for Shanghai Sigma Koki Co., Ltd. (in Shanghai, China) constructed, and operations launched.
- May 1998
- Sigma Koki establishes Tac Coat Co., Ltd. in IIda-shi, Nagano Prefecture through a joint venture with Natsume Optical Corporation to expand production system for optical coatings.
- July 2000
- Technology Center obtains ISO 14001: 1996 certification.
- February 2001
- Head office and factory obtains ISO 9001:1994 certification.
- March 2001
- Technology Center obtains ISO 9002:1994 certification.
- March 2001
- Noto Plant obtains ISO 9001:1994 certification.
- March 2001
- Sigma Koki acquires Tokyo head office building (in Sumida-ku, Tokyo) to expand and strengthen the sales promotion and head office functions.
- July 2001
- Sigma Koki signs basic agreements with Hamamatsu Photonics K.K. concerning capital and business alliances.
- June 2002
- The Sales and Administration headquarters relocated to Tokyo head office building (in Sumida-ku, Tokyo).
- September 2002
- Tokyo head office obtains ISO 9001:2000 certification.
- October 2002
- Technology Center obtains ISO 9001:2000 certification.
- January 2003
- Tokyo head office, head office and factory, and Osaka sales office obtain ISO 14001:1996 certification.
- July 2003
- Noto Plant obtains ISO 14001:1996 certification.
- September 2003
- Osaka sales office obtains ISO 9001:2000 certification.
- December 2004
- In accordance with establishment of JASDAQ security market, delist the over-the-counter stock offering and reregister stocks to JASDAQ securities exchange Inc.
- November 2005
- Expand facility of Shanghai Sigma Koki Co., Ltd. (in Shanghai, China) and start manufacture of optical hardware product.
- February 2006
- Unifying the Quality Control and the Environmental Conservation management system together and obtained integrated certificate of ISO9001 : 2000 and ISO14001 : 2004 in all domestic facilities.
- March 2007
- Expand facility of head office and factory to strengthen the optics department.
- May 2007
- Reorganize Osaka sales office into Osaka branch.
- June 2007
- Kyushu sales office opens in Hakata-ku, Fukuoka.
- November 2010
- OptoSigma Corporation relocated to larger facility, upgraded production and strengthen the sales operation.