| Apr 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). |
| Oct 1984 |
First edition of general catalog of standardized products released. Non-store sales operations begin. |
| Nov 1986 |
Tokyo sales office opens in Narimasu, Itabashi-ku, Tokyo. |
| Mar 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. |
| Jul 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). |
| Jun 1992 |
Osaka sales office opens in Nishi-nakanoshima, Yodogawa-ku, Osaka, strengthening sales for the Kansai area. |
| Jan 1993 |
Kanazawa Technology Center opens in Tomizu-cho, Kanazawa-shi, Ishikawa Prefecture. |
| Jun 1993 |
Shanghai SIGMA KOKI Co., Ltd. established for mass porduction of laser-related optical products. |
| Aug 1994 |
In a move seeking to expand sales, Tokyo sales office relocated to larger facilities at Higashi-nippori, Arakawa-ku, Tokyo. |
| Jul 1995 |
OptoSigma Corporation established, primarily for the manufacture and sales of optical equipment in the US. |
| Oct 1995 |
- Sigma-Technos Corporation established, for the sales of various laser optical equipment and measuring equipment.
- New Technology Center opens in Yatsukaho, Matto-shi, Ishikawa Prefecture.
- The new facility integrates the Kanazawa Technology Center.
|
| Nov 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. |
| Jan 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. |
| Jul 2000 |
Technology Center obtains ISO 14001: 1996 certification. |
| Feb 2001 |
Head office and factory obtains ISO 9001:1994 certification. |
| Mar 2001 |
- Technology Center obtains ISO 9002:1994 certification.
- Noto Plant obtains ISO 9001:1994 certification.
- SIGMA KOKI acquires Tokyo head office building (in Sumida-ku, Tokyo) to expand and strengthen the sales promotion and head office functions.
|
| Jul 2001 |
SIGMA KOKI signs basic agreements with Hamamatsu Photonics K.K. concerning capital and business alliances. |
| Jun 2002 |
The Sales and Administration headquarters relocated to Tokyo head office building (in Sumida-ku, Tokyo). |
| Sep 2002 |
Tokyo head office obtains ISO 9001:2000 certification. |
| Oct 2002 |
Technology Center obtains ISO 9001:2000 certification. |
| Jan 2003 |
Tokyo head office, head office and factory, and Osaka sales office obtain ISO14001:1996 certification. |
| July 2003 |
Noto Plant obtains ISO 14001:1996 certification. |
| Sep 2003 |
Osaka sales office obtains ISO 9001:2000 certification. |
| Dec 2004 |
In accordance with establishment of JASDAQ security market, delist the over-the-counter stock offering and reregister stocks to JASDAQ securities exchange Inc. |
| Nov 2005 |
Expand facility of Shanghai SIGMA KOKI Co., Ltd. (in Shanghai, China) and start manufacture of optical hardware product. |
| Feb 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. |
| Jun 2007 |
Kyushu sales office opens in Hakata-ku, Fukuoka. |
| Nov 2010 |
OptoSigma Corporation relocated to larger facility, upgraded production and strengthen the sales operation. |
| Jan 2014 |
The SIGMAKOKI Group published the new unified global brand “OptoSigma”. |
| Apr 2014 |
OptoSigma Europe S.A.S. opened in France, primarily for the sales of optical equipment in Europe. |
| Dec 2015 |
Head office/Hidaka plant acquired approval for Medical Device Manufacturing. |
| Jun 2017 |
Engineering division is newly established. The company has reorganized into four divisions of Production, Engineering, Sales and Administration. |
| Nov 2017 |
The Quality Control and the Environmental Conservation management system has updated integrated certificate of ISO9001 : 2015 and ISO14001 : 2015 in all domestic facilities. |
| Apr 2019 |
OptoSigma Southeast Asia Pte. Ltd. established in Singapore, primarily for the sales of optical equipment in the Southeast Asian market. |
