| A.D. | Our History |
|---|---|
| 1919 | Chikashi TANIGUCHI, the founder of the company, joined TOKYO KIZAI KOGYO WORKS (predecessor of today's TAKASAGO TEKKO K.K.). He took a cue from American-made rolling mills, designed and manufactured the most advanced rolling mills of the time based on his original ideas. |
| 1930 | Participated in the foundation of NIPPON KINZOKU CO., LTD. (formerly TOKYO SHINTETSU WORKS). |
| 1940 | Established TOKUSHU KINZOKU ROLLING WORKS in Itabashi (Maeno-cho, Itabashi-ward, former headquarter). Established the best reputation in Japan for high-quality special steel materials for precision springs. |
| 1948 | Reorganized as TOKUSHU KINZOKU KOGYO CO., LTD. |
| 1952 | Reorganized as Tokushu Kinzoku Kogyo.co,ltd. |
| 1956 | Started production of cold-rolled stainless steel. |
| 1968 | Established production technology for 10 micron-thick cold-rolled materials. |
| 1970 | Offered the expertise of cold rolling technology to HANKOOK METAL INDUSTRIAL CO., LTD. |
| 1980 | With the launch of the SONY Walkman (1979), the company became the top supplier of stainless steel materials for headphones. Achieved the highest-level in fatigue resistance of stainless steels for springs used for automobile seat belts. |
| 1981 | Started developing new materials for metal hubs used for 3.5- inch floppy disc. |
| 1982 | Established Saitama Factory (former SAITAMA TOKUSHU KINZOKU KOGYO), started the operation of the world's first 18-roll insertion type Z-High rolling mill. |
| 1985 | During the heyday of VTRs, we gained a large market share with our suppressing springs for VTR cassette. |
| 1987 | Developed "FS-1", a special material for metal hubs, together with the former NIPPON STAINLESS STEEL, achieved the top share in the metal hub market. |
| 1988 | Started operation in TAIWAN TOKKIN CO., LTD. Became one of the world's top five manufacturers of tape measure materials. |
| 1990 | Started developing and selling composite materials by using clad bonding techniques. |
| 1992 | Started test samples shipment of "OVIONE™", a material coated with function resin. |
| 1995 | Withdrew from the COLD ROLLED STEEL PROMOTION ASSOSIATION. Aimed to become a precision metal materials manufacturer from a cold-rolled manufacturer. |
| 1998 | Started operation in SHANGHAI TOKKIN CO., LTD. |
| 1999 | Organized Composite Materials Department with cladding, soldering, and coating technologies at its core. Acquired ISO 9001 certification in all domestic offices and Factorys. |
| 2004 | Started Tokkin Innovation Activities. Received Toyota-style production innovation instruction by OJT Solutions. |
| 2005 | Hot spring business "SAYA-NO-YUDOKORO" opened. https://www.sayanoyudokoro.co.jp/ |
| 2006 | Delivery Center began operations. Tokkin’s KAIZEN proposal system “CREATIVITY AND INGENUITY” has started in earnest. Started the 2nd phase construction in SHANGHAI TOKKIN. Acquired ISO 14001 certification in Saitama Factory. |
| 2007 | Completed the 2nd phase construction in SHANGHAI TOKKIN. Founded SHANGHAI XIYIN COMPOSITE MATERIAL CO., LTD. The 7th stage of Tokkin Innovation Activity has started. |
| 2008 | Merged former TOKUSHU KINZOKU EXCEL, and TOSKUSHU KINZOKU KOGYO was renamed to TOKUSHU KINZOKU EXCEL CO., LTD. Acuired OHSAS 18001 certification in Saitama Factory. |
| 2010 | Yoshito TANIGUCHI was inaugurated as the chairman, Tsuyoshi TANIGUCHI was inaugurated as the president. The capital was reduced to 300 million yen. |
| 2011 | Established overseas sales branch, HONG KONG TOKUSHU KINZOKU EXCEL CO., LTD. Changed the financial period from March to December. Renewed "W4-4" rolling mill. |
| 2012 | Established domestic sales branch, TOHOKU SALES OFFICE. Introduced ""MVM-1"" high-precision rolling mill for experimental use. |
| 2013 | OHSAS 18001 certification is cancelled in December, and activities continue as a Self-management operation. Mass production of TOKKIN 350 TF, stainless steel for highly durable bellows, begins. Mejiro head office is relocated from 5F to 6F in the same building. |
| 2014 | Released the English version WEB site. https://www.tokkin.com |
| 2017 | TOKUSHU KINZOKU EXCEL CO., LTD. was renamed to TOKKIN HOLDINGS Corp. and Newly established TOKUSHU KINZOKU EXCEL CO., LTD. through a corporate split-up. Started mass production of high-strength and high-ductility stainless steel "TOKKIN 350 JIN™". |
| 2018 | "TOKKIN 350 JIN™" received the Technology Development Award from THE JAPAN INSTITUTE OF METALS AND MATERIALS (JIMM). |
| 2019 | Released "TOKKIN WIRE" WEB site, which specializes in high-alloy wires. https://www.tokkinwire.com/ |
| 2020 | Succeeded in developing production technology for composite layers of different materials using the cold spray method. |
| 2021 | TOKKIN 301 JIN™, a high-strength, high-ductility stainless steel, went into mass production. Established overseas sales branch, TOKKIN SINGAPORE PTE. LTD. |
