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January,1949 |
Yoshiaki Mitsui, Founder of Mitsui High-tec commenced the manufacture and sale of dies in Tsutsuimachi 1-chome, Yahata City, Fukuoka Prefecture (present Kurosaki 5-chome, Yahatanishi-ku, Kitakyushu City). |
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January,1950 |
Succeeded in the manufacture of own-made surface grinder No.1. |
| 1952 |
Developed a manual calculating machine "Orion". |
| March,1954 |
Delivered die No.1 produced by over all grinding after heat treatment. |
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| 1955 |
Completed progressive die No.1. |
| April,1957 |
Mitsui Manufacturing was founded at a capital of 1,500-thousand yen. |
| December,1958 |
Developed tungsten carbide die(notching type). |
| May,1959 |
Developed a technology for manufacturing tungsten carbide precision progressive die for motor core, and started its manufacture and sale. |
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October,1960 |
Constructed Komine Factory (present Head Office / Yahata Plant). |
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| May,1961 |
Completed the mass production system of surface grinder, and started its sale.
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| April,1963 |
Developed an air grinder, and started its manufacture and sale. |
| June,1963 |
Started the manufacture and sale of precision filing machine. |
| April,1964 |
Formed a partnership with Blohm, a surface grinder manufacturer of Germany, on technical alliance for surface grinder. |
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| April,1965 |
Announced the completion of new surface grinder, "Mitsui-Blohm". |
| May,1966 |
Developed tungsten carbide die for stamping IC leadframe. |
| August,1966 |
Opened Chicago office in Illinois, United States of America. |
| November,1967 |
The tungsten carbide precision die delivered to John Oster & Company, United States of America established a world record, 4.2 million punching by one grinding. |
| September,1968 |
Developed a powered nostril-hair cutter, "Mini cut". |
| June,1969 |
The mass production and sale of IC lead frames stamped by progressive carbide dies started. |
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April,1972 |
International Leadframe Corporation established in Illinois, United States of America. |
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| December,1972 |
Mitsui (Singapore) established in Singapore (presently Mitsui High-tec (Singapore)). |
| January,1973 |
Mitsui (Hong Kong) established in Hong Kong (presently Mitsui High-tec (Hong Kong)). |
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| August,1974 |
Developed ultra-high speed die carrying out 1450spm. |
| November,1975 |
Developed MAC (Mitsui Automatic Core assembly) system, an automatic laminated-core binding system. |
| October,1979 |
Started IC leadframe plating business, and developed an automatic continuous spot-plating machine. |
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June,1981 |
Developed a punching die thinner than material to be punched, and succeeded in the stamping. |
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| October,1982 |
Completed a four-story building of Yahata Consolidated Head Office Plant in the premises of Komine Factory. |
| May,1984 |
Changed the corporate name to Mitsui High-tec. |
| July,1984 |
IC assembly business started. |
| September,1984 |
Mitsui High-tec listed on the Fukuoka Stock Exchange. |
| April,1985 |
Mass-production of IC Leadframes by photo etching process started. |
| September1985 |
Mitsui High-tec listed on the Second Section of the Tokyo Stock Exchange. |
| January,1987 |
Mitsui High-tec (Malaysia) established in Malaysia. |
| April,1988 |
Started the sale of Tooling parts. |
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June,1991 |
Acquired stocks of Mitsui Electric and established it as a subsidiary. |
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| July,1991 |
Mitsui High-tec listed on the First Section of the Tokyo Stock Exchange. |
| August,1991 |
Joined NPS Association. |
| October,1993 |
IC Assembly plant is newly established in Kongo, Yahatanishi-ku, Kitakyushu. |
| December,1993 |
Opened Beijing Office in People's Republic of China. |
| July,1994 |
Mitsui High-tec (Tianjin) established in People's Republic of China. |
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| September,1994 |
Mitsui High-tec (Philippines) established in Republic of the Philippines. |
| March,1996 |
Mitsui High-tec (Shanghai) established in People's Republic of China. |
| April,1997 |
Developed a die for punching the motor core for hybrid car. |
| October,1998 |
Mitsui High-tec (Taiwan) established in Kaohsiung, Taiwan. |
| March,1999 |
Five domestic plants received lSO14001 certification. |
| December,1999 |
Mitsui High-tec (Thailand) established in Kingdom of Thailand. |
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July,2000 |
Developed a technology to produce ultra-small (Φ2.7mm) core by MAC system. |
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| October,2000 |
Developed ultra-thin (0.15mm thickness) core by MAC. |
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| September,2001 |
Newly constructed Tool and Die Manufacturing Factory in Nobu, Yahatanishi-ku, Kitakyushu City; the 1st-phase construction was completed. |
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| September,2002 |
Mitsui High-tec (Guangdong) established in People's Republic of China. |
| February,2003 |
Established Mitsui Stamping. |
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| July,2008 |
Founder, chairman & CEO Yoshiaki Mitsui died. |
