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HISTORY
| １９０７ | Started manufacturing steel wheel glass cutters in Miyagi prefecture. |
|---|---|
| １９２９ | Founded Arai Manufacturing Company in Miyagi prefecture. |
| １９５４ | Started manufacturing tungsten carbide wheel glass cutters. |
| １９６２ | Relocated Arai Manufacturing Company to Osaka. |
| １９７５ | Reorganized the company as Toyo Industrial Co., Ltd.. |
| １９９１ | Completed the head-office building in front of Suminoe railroad station in Osaka city. |
| １９９２ | Developed the industry-first electric discharge-ground wheels. |
| １９９６ | Established Osaka business office. |
| １９９８ | Developed "Tap wheel", which vibrate at scoring. |
| ２００２ | Founded Toyo Co., Ltd. |
| ２００５ | Established Kitajima factory in Suminoe-ku, Osaka city. |
| ２００７ | Established Sakai factory in Sakai city, Osaka prefecture. |
| ２０１０ | Established Business office in Dalian, P.R.China. |
| ２０１１ | Certified ISO 9001 |
| ２０１８ | Changed Company Name from Toyo Industrial Co., Ltd. to Toyo Co., Ltd. |
