Company history
| January | 1985 | Established‘Adtec Co.’at 1-121-1 Akebono-cho, Fukuyama City, Hiroshima Prefecture, Japan, with capital of 4.3million yen Development and manufacture of various control boards |
| May | 1990 | Head Office relocated from 1-121-1, Akebono-cho, Fukuyama City, Hiroshima Prefecture to 5-6-10, Hikino-cho, Fukuyama City, Hiroshima Prefecture (current location) |
| July | 1990 | Development of CPU unit and analog unit for process control of semiconductor production equipment |
| February | 1991 | Started sales of high frequency plasma generator for semiconductor processes Started sales of automatic impedance adjustment (matching unit) equipment for semiconductor processes |
| April | 1995 | Established the Osaka Office in Chuo-ku,Osaka City |
| April | 1996 | Established the Tokyo Office in Chiyoda-ku,Tokyo |
| June | 1996 | Established Customer Support Centre in Fukuyama City, Hiroshima Prefecture |
| August | 1996 | Established Adtec Technology,Inc. (subsidiary) in Milpitas, California, U.S.A. (current location is Fremont, California, U.S.A.) |
| November | 1996 | Osaka Office Relocated to Naniwa-ku, Osaka City |
| March | 1997 | Started selling the Visual Matching Unit AMV series |
| March | 1998 | Osaka Office closed |
| October | 1999 | Parts Center is established in Fukuyama City, Hiroshima Prefecture |
| November | 1999 | Adopted as standard of a U.S.A. equipment maker. Started development and sales of 7.5kW frequency plasma generators |
| May | 2000 | Established Technical Center in Fukuyama City, Hiroshima Prefecture |
| August | 2000 | Established Adtec Europe Limited (subsidiary) in Hounslow, London,U.K. |
| December | 2000 | Company name changed from‘Adtec Co.’to‘Adtec Plasma Technology Co.’ |
| April | 2001 | Tokyo Office Relocated to Kohoku-ku, Yokohama City, Kanagawa Prefecture |
| January | 2003 | Established Design Center in Fukuyama City, Hiroshima Prefecture |
| May | 2003 | ISO 9001: 2000 Certified (Head Office, Parts Center, Technical Center, and Design Center) (Design and manufacture of high frequency plasma generators, impedance adjustment equipment, and high frequency power measurement equipment) |
| July | 2004 | Became listed on the Tokyo Mothers Stock Exchange |
| December | 2004 | Acquisition of IDX corporation by share acquisition (subsidiary) |
| January | 2005 | Established Innovation Center in Fukuyama City, Hiroshima Prefecture |
| February | 2008 | Tokyo Office Relocated to Kawasaki-City, Kanagawa Prefecture Tokyo Technical Center Established in Kawasaki-City, Kanagawa Prefecture |
| May | 2011 | Established Phuc Son Technology Co., Ltd. (subsidiary) in Bac Ninh City, Bac Ninh Province, Vietnam Established Hana Technology Co., Ltd. (subsidiary) in Bucheon-shi, Gyeonggi-do, South Korea |
| August | 2014 | Established AD Technology Ltd. (subsidiary) in Zhubei City, Hsinchu County 302, Taiwan |
| January | 2015 | Listed on the Second Section of the Tokyo Stock Exchange |
| April | 2016 | Established SUZHOU CUIZHUO DIANZI LIMITED (subsidiary) in Suzhou City, Ziangsu County , China |
| February | 2018 | Relocated Tokyo Technical Center to Yokohama City, Kanagawa Prefecture |