～1990
- 1981.05
- The company was founded in Hachioji City Tokyo as A-BEX Research Laboratory.
- 1981.06
- The company relocated its headquarters to Kokubunji City Tokyo. The next month it commenced production and sales of audio test tapes.
- 1984.06
- Accepted subcontracted operations from JEIDA（Japan Electronic Industry Development Association）to handle measurement heads for IEC (International Electrotechnical Commission).
- 1985.11
- Exported test tapes to government-operated Plant No.4 in Guiyang City Guijou Province China.
- 1985.12
- Accepted subcontracted operations from JEIDA to handle test CDs.
- 1990.05
- Completed the company's headquarters building in Higashimurayama CityTokyo. At the same time changed the company's name to A-BEX.
1991～2000
- 1991.01
- Was awarded Radio Technology Prize for Mechanical Alignment Test CD.
- 1991.01
- Established Nihongi Plant in Iruma City Saitama Prefecture near Tokyo as a CD production facility and began in-house manufacture of CDs.
- 1994.04
- Established Miyadera Facility in Iruma City Saitama Prefecture near Tokyo as a CD package plant.
- 1994.09
- Established Kumegawa Facility in Higashimurayama City Tokyo.
- 1995.02
- Established representative office in Hong Kong.
- 1996.08
- Established representative office in Singapore.
- 1996.10
- Established Hamura Facility in Hamura City Tokyo. Consolidated Multimedia and Music CD production divisions.
- 1997.03
- Changed the company's name to Almedio Inc.
- 1997.06
- Established Kokubunji Facility in Kokubunji City Tokyo with the objective of improving the business efficiency of the Systems Division.
- 1999.03
- Has gone public as over-the-counter issue in Japan Securities Dealers Associations.
- 1999.09
- Operation started of DVD production line.
- 2000.01
- Was awarded Radio Technology Prize for the contributed article of The characteristic and sound quality of CD-R.
- 2000.12
- Was authorized as a DVD Verification Lab. of class B.
2001～2010
- 2002.12
- Started to sell Alignment disc.
- 2002.12
- Started to sell SET-P220A that is write strategy evaluation tool.
- 2004.08
- Was certified under ISO 14001.
- 2004.08
- Listed on the Tokyo Stock Exchange 2nd section.
- 2005.10
- Established subsidiary ALCERA (Su Zhou) Co.，Ltd.
- 2007.04
- Taking over TEST MEDIA business from Teac Corp
- 2008.09
- Was authorized as a DVD Verification Lab. of class A.
- 2009.03
- Was authorized as a BD Testing Center.
2011～
- 2013.05
- Established Kyusyu Facility in Kitakyusyu City Fukuoka.
- 2014.07
- 1.1 billion 30 million yen capital with capital increase
Taking over STRAGE DEVICE business from Teac Corp
- 2015.09
- Taking over STARGE DEVICE bujiness from TAIWAN TEAC CORPORATION.
- 2015.10
- Established Taipei Branch in Taipei City.
- 2017.02
- Relocated its headquarters to Hino-shi, Tokyo.
- 2017.03
- Consolidated Hamura facility to the headquarters in Hino-shi
- 2017.09
- Established a subsidiary "A Drink Trade Co., Ltd." in China.
- 2018.11
- Relocated its headquarters to Kunitachi-shi, Tokyo
- 2019.01
- Established Tokorozawa Office in Tokorozawa City, Saitama.
- 2019.04
- Commenced R&D, production and sales of Nano materials.
