June. 1931 | Ishida Valve Seisakusho was established as a private business and commenced domestic production of highperformance valves. |
March. 1935 | The Company received guidance from the U.S. company, The Badger Co.,Inc. and started the manufacture of cast steel valves for petroleum refining. |
April. 1939 | Ishida Valve Seisakusho Co.,Ltd. was established and took over the former private business. |
Jan. 1949 | President Kenichiro Ishida took office as the Chairman of the National Valve Cock Council (the predecessor of the Japan Valve Manufactures Association). |
Jan. 1959 | The company was designated as a model factory by the small and Medium Enterprise Agency.(Received the same designation in 1961 and 1963.) |
June. 1961 | The company name was changed to Ishida Valve Mfg. Co., Ltd. |
April. 1963 | The Tokuyama Factory was established in Yamaguchi Prefecture(the predeces sor of Tokuyama Factory, Ishida Valve Engineering Co.,Ltd.) |
Oct. 1963 | The Chiba Factory was established in Chiba Prefecture(the predecessor of Chiba Factory, Ishida Valve Engineering Co., Ltd.) |
Oct. 1965 | The Tokyo based factory was moved to Omiya, Saitama Prefecture, to become the new Tokyo Factory. |
Oct. 1967 | The company was rated highly for its quality and technology by the American Petroleum Institute (API), and obtained approval to be an API 600 monogram indicating factory from the institute. (Also obtained approval to be an API 6D monogram indicating factory in 1977.) |
March. 1971 | Established Ishida Valve Engineering Co.,Ltd., a repair and maintenance facility for customers in the Japanese market. |
Aug. 1972 | This plant was designated as the "Authorized Plant for Testing and Manufacturing High Pressure Gas Systems", by the minister for International Trade and Industry. |
Oct. 1972 | Established Kashima Factory in Ibaraki Prefecture (the predecessor of Kashima Factory, Ishida Valve Engineering Co., Ltd.) |
Aug. 1975 | Concluded a sales agreement with the U.S. company, Lunkenheimer. |
Oct. 1976 | Concluded a technical agreement with the Austrian company, Hoerbiger. |
Nov. 1990 | Opened the new Tokuyama Factory.(after dismantling the old factory.) |
March. 1991 | Concluded a maintenance-related technical agreement with Dutch company, Mokveld Valves. |
June. 1992 | Completely rebuilt and expanded the Chiba Factory. |
Oct. 1998 | Tokyo Factory was moved to Kitamoto-city from Omiya-city.(Saitama Prefecture) |
Dec. 2013 | It was a Headquarter shift in Shibaura, Minatoku. |