February 1927 | Succeeded in producing complete Japanese-made bellows (patented) invented by founder Keijiro Ohno Founded Ohno Kogyosho and began manufacturing and selling bellows |
May 1928 | Started manufacturing and selling steam traps and valves for steam heating |
October 1930 | Automatic control valves for steam heating temperature and pressure, bellows expansion valves and fittings manufacturing/sales begin |
April 1932 | Became a designated manufacturer for various government agencies, including the Ministry of Construction, the Ministry of Health, Labour and Welfare, and the Ministry of Education, Science, Sports and Culture |
June 1933 | Began mass exports to northeastern China (then Manchukuo) |
April 1943 | Received designation as a supervised factory of the Ministry of Munitions' Aviation Weapons Directorate and began manufacturing special bellows for aircraft automatic control equipment |
March 1944 | Factory named 1700th Imperial Factory under the direct control of the Ministry of Munitions and was relocated to Matsushima, Ina County, Nagano |
September 1950 | Relaunched as Ohno Bellows Industry |
October 1955 | Factory relocated to Tokyo and production of bellows valves for transformers and chemical plants increased |
September 1958 | Developed bellows valves for semiconductor equipment at the request of NEC Corporation |
October 1959 | At the request of the Japan Atomic Energy Agency, researched and developed bellows valves for nuclear power applications |
November 1961 | Hiratsuka Factory completed. Tokyo factories relocated and consolidated |
October 1963 | Research and development of metallic sodium valves for fast breeder reactors |
September 1964 | Developed miniature bellows valves for IC manufacturing equipment at the request of Fujitsu Limited |
February 1965 | Developed oil static valves for large capacity power cable insulation at the request of Furukawa Electric Co., Ltd. |
December 1965 | Developed a high-pressure bellows valve for injecting high-purity gas around the plant reactor at the request of Sumitomo Chemical Industry Company Limited |
February 1968 | Developed valves for IC and LSI manufacturing equipment at the request of the Electrical Communication Research Institute and IC Special Research Laboratory of Nippon Telegraph and Telephone Public Corporation (now NTT Group) |
April 1970 | Designated as a non-inspection certified factory by Tokyo Shibaura Denki K.K. (currently Toshiba Corporation) |
March 1971 | At the request of the Power Reactor and Nuclear Fuel Development Corporation, began project for bellows valves for special gases used in nuclear fuel development |
June 1972 | Certified as a nuclear valve factory for the Hitachi Plant of Hitachi, Ltd. |
April 1973 | Expanded Hiratsuka factory and installed new equipment such as inspection equipment, machine tools, and cleaning and drying machines |
June 1973 | Developed a high conductance bellows valve for special gases used in nuclear fuel development |
April 1974 | Developed a vacuum break emergency shutoff valve and a high-performance bellows seal solenoid valve |
October 1974 | Capital increased to 40,000,000 yen |
March 1976 | Certified as a quality assurance factory for Mitsubishi Heavy Industries Ltd., Takasago Factory |
May 1976 | Received certification from the Minister of International Trade and Industry (currently the Minister of Economy, Trade and Industry) as a certified high-pressure gas equipment testing and manufacturing business (certification numbers MA35719 and MB35719) |
December 1978 | Hiratsuka Factory receives expanded certification as a high-pressure gas equipment testing and manufacturing certified business from the Minister of International Trade and Industry (currently the Minister of Economy, Trade and Industry) (Certification No. MA35716-1, MB35716-1) |
March 1980 | Hiratsuka factory and machinery and testing facilities expanded |
June 1981 | Acquired 3,4000㎡ factory site in Iwaki, Fukushima |
September 1981 | Opened Osaka Sales Office |
June 1982 | Iwaki Factory completed and equipped with a large-capacity vacuum annealing furnace and machining facilities Started production of miniature valves for semiconductors |
December 1983 | Increased capital to 50,000,000 yen |
July 1984 | State-of-the-art clean room installed at Iwaki Factory |
September 1985 | Started manufacturing diaphragm valves for semiconductor manufacturing equipment |
October 1987 | Expanded Iwaki Factory and expanded electrolytic polishing mass production equipment |
March 1990 | Iwaki Factory certified by the Minister of International Trade and Industry (currently the Minister of Economy, Trade and Industry) as a certified high-pressure gas equipment testing and manufacturing facility (certification number MAB-458-N) |
October 1991 | Clean room added to the Iwaki Factory to accommodate ultra-clean valves for semiconductor equipment |
April 1993 | Obtained certification for manufacturing screw joints (N-II) for high pressure gas equipment (Certification number MAB-458-N-II) |
May 1994 | Hiratsuka Factory integrated into Iwaki Factory, company granted expanded certification as a high-pressure gas equipment testing and manufacturing facility by the Minister of International Trade and Industry (currently the Minister of Economy, Trade and Industry) |
May 1995 | Addition of state-of-the-art 0.1μm Class 10 clean room |
December 1998 | Obtained ISO9001 certification |
March 2000 | Received the Quality Control Excellence Award from Toshiba Corporation Keihin Operations |
May 2003 | Bureau Veritas Certification |
February 2006 | Developed a special bellows seal vacuum gate valve (international patent acquired) |
February 2012 | Long life bellows series created |
May 2014 | Bellows manufacturing facilities expanded |
August 2015 | Expansion of machining facilities |
January 2016 | Development of cryogenic valves |
November 2017 | Development of remote-controlled valves for use in facilities dealing with specific serious accidents at nuclear power plants |
April 2020 | Development of high-purity diaphragm seal valves for semiconductor manufacturing equipment |
April 2021 | Development of Y-shaped bellows seal valve for semiconductor manufacturing equipment |
December 2022 | Expansion of machining and polishing equipment |
March 2023 | Construction of materials and product warehouse |
