| 1949年04月 |
Released valve product for synthetic fiber plant. |
| 1949年05月 |
Founded by Mitsuo Kishikawa as Kishikawa Valve Manufacturing Co., Ltd. Early products include valves for penicillin production equipment, vacuum valves, circuit breaker valves, and transformer valves. |
| 1959年08月 |
Reorganized as Kishikawa Special Valve Manufacturing Co., Ltd. |
| 1961年09月 |
Completed Phase 1 construction of the Tokai Factory. |
| 1963年06月 |
Completed development of Rupture Disks. |
| 1966年08月 |
Developed a prototype sodium (Na) valve for Fast Breeder Reactors under a research program commissioned by the Science and Technology Agency for peaceful nuclear applications. |
| 1967年03月 |
Opened Osaka Branch Office. |
| 1970年04月 |
Completed Phase 2 expansion of the Tokai Factory. |
| 1971年06月 |
Consolidated Tokyo Factory production facilities into Tokai Factory. |
| 1973年04月 |
Relocated Headquarters to Minami-Oi, Shinagawa-ku, Tokyo. |
| 1974年08月 |
Completed Phase 3 construction of Tokai Factory. |
| 1977年10月 |
Began R&D of ultra-high and high vacuum valves for fusion research (JT-60 or Japan Torus 60, tokamak-type nuclear fusion experimental reactor). |
| 1986年10月 |
Developed and launched All-Metal Fast Closing Valve (FCV). |
| 1987年06月 |
Developed and launched All-Metal Double-Sealed Gate Valve (AI). |
| 1989年12月 |
Product release of non-sliding mechanism valve. |
| 1990年07月 |
Manufactured ultra-short pulse electron gun for FEL. |
| 1990年11月 |
Successfully developed Ultra-Clean Pendulum Gate Valve in joint research with Tohoku University. |
| 1992年11月 |
Supplied All-Metal Gate Valves and angle valves for SPring-8. |
| 1992年11月 |
Product release of Unicam Gate Valve. |
| 1996年09月 |
Product release of enhanced door valve. |
| 1998年04月 |
Company name changed to V TEX Corporation |
| 1998年08月 |
Certified for ISO 9001. |
| 1999年06月 |
Acquired Nichizou Precision Polishing Co., Ltd. |
| 2001年07月 |
Product release of Penduroll Valve. |
| 2003年09月 |
Opened Omiya Workshop (Hitachi-Omiya, Ibaraki). |
| 2003年10月 |
Registered ISO 9001:2000. |
| 2004年06月 |
Established clean room facility in South Korea. |
| 2005年01月 |
Opened South Korea Branch (Seongnam, Gyeonggi-do). |
| 2006年02月 |
Developed valve “BOXER” for solar panel manufacturing equipment. |
| 2006年02月 |
Established clean room building at Tokai Factory. |
| 2006年07月 |
Divested Nichizou Precision Polishing Co., Ltd. |
| 2007年09月 |
Introduced three new machining tools. |
| 2008年03月 |
Introduced two new machining tools. |
| 2008年12月 |
Developed in-house pressure control valve controller. |
| 2010年07月 |
Relocated South Korea Branch to Ansan, Gyeonggi-do. |
| 2011年07月 |
Increased capital by JPY 200 million. |
| 2012年01月 |
Increased capital by JPY 400 million. |
| 2012年04月 |
Established VTEX Korea Co., Ltd. |
| 2012年07月 |
Certified for ISO 14001:2004 at Tokai Factory. |
| 2015年01月 |
Obtained ASME (UD) Stamp for Rupture Disks. |
| 2015年05月 |
Established V TEX America Inc. |
| 2016年04月 |
Approved as vendor by Saudi Aramco for Rupture Disks. |
| 2017年05月 |
Established V TEX Shanghai Co., Ltd. |
| 2019年04月 |
Established production building for semiconductor equipment valves at Tokai Factory. |
| 2022年08月 |
Relocated Osaka Branch to Kawaramachi, Osaka. |
| 2022年10月 |
Relocated Headquarters to Omori Prime Building, Shinagawa, Tokyo. |
| 2025年02月 |
Certified for ISO 14001:2015 at Higashi-Maizuru Factory. |
| 2025年03月 |
Expanded Clean Room No.1 at Higashi-Maizuru Factory. |
| 2026年06月 |
Becoming a subsidiary of KITZ Corporation. |
