| 1947 | Feb. | Tokyo Yogyo Co., Ltd. founded. |
| 1947 | May. | Established Nagase Woks at site of Daido Steel, Tajimi. [PHOTO] |
| 1958 | Nov. | Akechi Taika Renga K.K. made a subsidiary. |
| 1960 | Oct. | Kunimistu Yogyo K.K. made a subsidiary. |
| 1960 | Nov. | Constructed the Nš 3 factory at Tajimi Works. |
| 1961 | Oct. | Listed on second stocks markets of Tokyo and Nagoya. |
| 1964 | Sep. | Hisada Yogyo K.K. made a subsidiary; Mizuno Taika. |
| 1967 | Mar. | Separated Works shops from Tajimi Works; established as Hoei Kogyo K.K. |
| 1968 | Sep. | Constructed the Nš 4 factory at Tajimi Works to manufacture Zircon brick. |
| 1969 | Sep. | Established TYK Research Institute. |
| 1970 | May. | Hinomaru Yogyo K.K. made a subsidiary. |
| 1970 | Jun. | Purchased Hime Works, Daido Seito K.K. and made it the Nš 3 factory of Mizuno Taika. |
| 1973 | Dec. | Constructed Akasaka Works. 1km from Tajimi Works. [PHOTO] |
| 1974 | Oct. | Listed on first stock markets of Tokyo and Nagoya. |
| 1975 | Oct. | Separated Tokitsu plant; Toki Taika K.K. made a subsidiary. |
| 1976 | Nov. | Established Rotary Nozzle International S.A. in Belgium. |
| 1977 | May. | Established liaison office in Paris, France. |
| 1977 | Nov. | Established liaison office in Chicago, IL. |
| 1981 | Apr. | TYK Co. established in Pittsburgh, PA. |
| 1981 | Aug. | Established liaison office in Duisburg, West Germany. |
| 1982 | Mar. | Established liaison office in Seoul, Korea. |
| 1982 | Apr.. | Invested in Swank Refractories Company; made it subsidiary; TYK Swank Refractories Company. |
| 1983 | Aug. | Constructed new ceramics factory. |
| 1983 | Nov. | Established liaison office in London, UK. |
| 1984 | Apr. | TYK Swank Refractories Co. changed name to TYK Refractories Company. |
| 1985 | Oct. | Constructed Nš 2 new ceramics factory. |
| 1988 | Sep. | Changed the name of Tokyo Yogyo Co., Ltd. to TYK Corporation. |
| 1988 | Oct. | Established TYK TAIWAN in Taiwan. [PHOTO] |
| 1988 | Dec. | Established TYK Limited in UK. [PHOTO] |
| 1990 | May. | Transferred liaison office in Paris to Lambersart, France. |
| 1991 | Sep. | Contracted Incotecnica Corporation in Spain as agent. |
| 1992 | Mar. | Established TYK Information Service Co., Ltd. |
| 1995 | Apr. | Established TYK Europe GmbH in Germany. |
| 1996 | Oct. | Awarded the TPM Excellence; First Category. |
| 1997 | Aug. | Registered meeting the requirements of ISO 9001 system. |
| 1998 | Jan. | TYK Refractories Co. changed name to TYK AMERICA, Inc. |
| 1998 | Jul. | Registered meeting the requirements of ISO 14001 system. |
| 2001 | May. | TYK AMERICA implemented RN business in North America. |
| 2002 | Jan. | Formation of a new corporation, U-CERAMIC Co. Ltd. |