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![[Corporate Profile] Company History](/en/img/corporate/history/ttl.gif)
| 1937 | Established at Kegoya street 7-chome (currently Kegoya 3-chome), Kure city. |
|---|---|
| 1947 | Became the designated plant of Toyo Kogyo Co., Ltd. (Mazda Motor Corp.). |
| 1962 | Converted into Shitanaka Machine Tool Co., Ltd., a corporation with capital of 5 million yen. |
| 1963 | Moved plant to a new location at 9-3-15 Kegoya, Kure city. |
| 1973 | Built new plant at 9-2-28 Kegoya, Kure city. |
| 1982 | ・ Obtained recognition from Mazda Motor Corp. as a quality manufacturer. ・ Established facility to process gear parts. |
| 1985 | Established cold forging (header) plant with advanced cutting equipment for manufacturing automatic transmission gear parts. |
| 1988 | ・ Built new plant having plastic molding equipment. ・ Started in-house manufacture of cold-forging dies and plastic-molding dies. |
| 1990 | Changed the company name to Sigma Co., Ltd. |
| 1994 | Developed and introduced security products. Introduced "Torujyun 1". |
| 1995 | Introduced "Torujyun 2" and "Wall gate". |
| 1996 | ・ Received recognition from Mazda Motor Corp. as a high-quality manufacturer. ・ Established our Toyokawa Office. ・ Developed and started volume production of hydraulic sensors for automatic transmission systems. ・ Obtained patent on headrest arm. |
| 1997 | Received supplier quality system requirement certification from Rockwell (US). |
| 1998 | ・ Established SIGMA & HEARTS CO., LTD., a corporate joint venture, in Thailand. ・ Received QS-9000 and ISO-9001 certification. ・Received FSS (Full Service Supplier) certification from Mazda Motor Corp. ・ Start of Center Sales. |
| 1998 | ・Established Tokyo Office and Kyushu Office. ・ Introduced Wall Gate (Twin Hunter). ・ Introduced a human traffic measurement system (Frontier 2). |
| 2001 | Our plants were recognized by GM ・ Built plant in Tsue, Kurose-cho, Kamo-gun (moved the plastic molding operations to this plant). ・ Recognized by the Ministry of Economy, Trade and Industry as a corporation that initiates next-generation industrial projects. ・ Moved the head office of our security business to Minamimachi in Hiroshima city. |
| 2005 | Established a facility for inspection devices using laser light to detect processing flaws. |
| 2006 | Recognized as a starter of projects that link different business lines to create new businesses (inspection devices using laser light to detect flaws). |
| 2007 | ・ Established SIGMA PRECISE MACHINERY (JIANGSU) CO., LTD. in Danyang, Jiangsu, China ・ Included in the "300 healthy small and medium sized manufacturers - 2007 Edition" published by the Small and Medium Enterprise Agency and the Ministry of Economy, Trade and Industry. |
| 2008 | Opened the Osaka Sales Office of Security Division. |
| 2010 | Supporting industry Grant for promoting the practical application of "monozukuri" basic technology. |
| 2012 | Commencement of Sales of Laser Flaw/Defect Inspection System |
| 2013 | Establishment of Sigma Forging & Forming PVT.,LTD in Tamilnadu State, India |
| 2014 | ・Awarded `Top 100 Global Niche Copany in Japan` by Ministry of Economy, Trade and Industry ・Awarded `Excellence of Safety in Workin Environments` by the Hiroshima Laborer Bureau |
