The company was established in November 1968 as a manufacturer of diamond pellets (trade name: DIALLET), fixed abrasive grains for innovative precision lens processing using diamond fine powders.
Since then, we have produced metal and resin pellets and block type diamond with the support and cooperation of partners in the optical industry and contributed to streamlining precision grinding of optical camera lenses, optical equipment lenses, eyewear lenses, etc., including precision improvement, polishing cycle time reduction, etc.
It is said that the recent advancement of smartphones has made the environment surrounding the camera industry more demanding.
We also need to more widely maintain and extend the demand for our diamond tools while actively anticipating the development of the market from the global perspective we have cultivated. We would like to focus on new optical areas that are medical, eyewear, the industrial field, security, autonomous driving, etc., the processing of optical parts that are also essential to VR (virtual reality) and AR (augmented reality), and manufacture of high precision glass products and optical products made of special materials in various ways and manufacture unique products that are friendly to human society with the potential for Japanese small and medium-sized companies and workshops to continue to contribute to society.
Greeting
Hiroaki Nakahara
President and CEO
Sanwa Seimitsu Kogyo Co., Ltd.
History
History
1968 | Establishment(Capital 3million yen) |
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1970 | Capital by 3 million yen to 6 million yen |
1972 | “DIALLET” Trademark registration |
1980 | Acquired the factory site in Shirahata, Musashiurawa. |
1986 | Entered the Taiwan market and established the sales company. |
1989 | Increased the capital by 8 million yen to 20 million yen. |
1990 | Newly established business office in front of Musashiurawa Station. |
1992 | Increased the capital by 20 million yen to 40 million yen. Started local production in Taiwan and operation of the Taipei Factory. |
1993 | Increased the capital by 7.2 million yen to 47.2 million yen. |
2001 | Reduce capital to 30 million yen |
2003 | Established the Shanghai Factory and started local production and sales in China. |
2013 | New factory in Kamekubo, Fujimino City completed, and the headquarters transferred there. |
2017 | Established a trading company in Hong Kong and started selling and purchasing prisms, lenses, jigs, and their related products. |
2019 | Established an electroplated wheel factory and realized integrated in-house production in Japan. |