[As of the end of September, 2017]
|1924||Takino Rubber Industry Co. established. Bicycle tire factory built in Mukojima, Tokyo.|
|1944||Kokoku Rubber Industry Co., Ltd. established by the merger of 5 rubber companies with Takino Rubber at the center.|
|1949||Kambara Factory established in Shizuoka Prefecture, starting production of industrial rubber components.|
|1950||Sales office established in Okachimachi, Tokyo.|
|1953||Akabane Factory established in Kita-ku, Tokyo.|
|1957||Emphasis shifted from bicycle tires to industrial components. R&D Center established within Akabane Factory.|
|1961||Kambara Factory expanded. (Currently Shizuoka Rubber) Started extruding hoses at Mukojima Factory.|
|1963||Headquarters moved from Sumida-ku to Okachimachi, Taito-ku.|
|1965||Ohama Factory established in Shizuoka Prefecture.|
|1966||Started the move towards high function component manufacturing.|
|1968||Utsunomiya Factory established in Tochigi Prefecture.|
|1969||Tire tube production discontinued. Tire tube production discontinued.|
|1970||Full-scale production of medical components started at Ohama Factory.|
|1972||Diaphragm production started at Akabane Factory.|
|1974||Osaka Sales Office was established in Yodogawa-ku, Osaka.|
|1976||Headquarters moved to Kojimachi, Chiyoda-ku.|
|1977||Production of "Electro-conductive Rubber Material" started.|
|1979||R&D Center became independent with relocation to Inamachi, Saitama.|
|1980||Distribution Center established in Urawa, Saitama.
New factory established at current location in Kambara.
EPDM keyboard contact "TF Rubber" material production started at Kambara.
Electro-conductive Plastic "DEP" material developed at R&D Center.
|1983||Los Angeles Sales Office established.|
|1985||Chicago Sales Office established.
R&D Center became an independent corporation "Kokoku Rubber Technologies Co., Ltd."
Electronic Device Research Lab established in Yoga, Tokyo, developing pressure-sensitive electro-conductive rubber material.
Nagoya Sales Office established.
|1986||Kokoku Rubber Inc. established in USA.|
|1988||Kentucky Factory established in Richmond, KY.|
|1989||Eno Scientific Foundation established under the auspices of Japanese Ministry of Education.
First OEM graphic computer sold under My First Sony brand name.
|1990||Hard drive components production started.|
|1991年||Rechargeable battery safety valve production started at Ohama Factory.|
|1992年||Name changed to Kokoku Intech Co., Ltd.|
|1994年||Thai Kokoku Rubber Co., Ltd. established in Thailand.|
|1995||Singapore Branch established.
Ayutthaya Factory established in Thailand.
|1996||Photo copier transfer belt production started at Kambara Factory.|
|1998||Tochigi Rubber Co., Ltd. established by the acquisition of Takino Rubber.|
|1999||Shizuoka Rubber Co., Ltd. established by spin-off from Kambara Factory.|
|2000||Color laser printer intermediate transfer belt production started at Ohama Factory.|
|2001||Kokoku (Shanghai) Precision Rubber Co., Ltd. established in China.|
|2005||Ayutthaya No. 2 Factory - dedicated for extrusion process - established in Thailand.|
|2007||Bangkok Sales Office established in Thailand. New Delhi Branch established in India.|
|2009年||Kokoku Intech India Pvt.Ltd. established in India.|
|2011年||Neemrana Factory established in India.|
|2013年||PT. Jakarta Kokoku Intech established in Indonesia.|
|2016||Fukuoka Sales Office established. Nong Khae Factory established in Thailand.|
|2017||Kakegawa Sales Office established. Kokoku Innovative Technology Ltd. established in Thailand. Headquarters moved in Kojimachi.|