| in 1968 | Seichiro Naganuma established Kyoto Kasei Kogyo Co. in Onishi, Amagasaki City. |
| in 1969 | Began production and sales of plastic molded products at a (temporary) factory in Takaoka, Takino-Cho. |
| in 1972 | Completed construction of Kansai Plant in Kato City, Hyogo Prefecture. 5,457.77 square meters. |
| in 1978 | Completed construction of Tohoku Plant in Miyazaki-Cho, Kami-gun, Miyagi 8,234.84 square meters |
| in 1979 | Began MK activities (QC activities) with the first MK presentation at the head office. |
| in 1982 | Moved the head office from Amagasaki City to Takaoka, Kato City. |
| in 1985 | Opened the Shinjuku Office in Tokyo. |
| in 1986 | Established TOMS Co. and started mold production (currently co-located with Kansai Plant). |
| in 1989 | Opened the Osaka Office in Ibaraki City, Osaka. |
| in 1999 | Increased capital to 100 million yen. |
| in 2000 | Head office and factory acquired ISO9002 certification. |
| in 2001 | Head office and factory acquired ISO14001 certification. |
| in 2002 | Company name changed from Kyoto Kasei Kogyo Co. to Aska Company Co. through internal recruitment. |
| in 2003 | Acquired land for a factory in Takino Industrial Park 13,577.02 square meters |
| in 2005 | Tsuneo Naganuma becme Representative Director and Makoto Naganuma became Executive Vice President. |
| in 2006 | Completed construction of the S Site at the head office and factory (implemented by Takenaka Corporation) and started development and manufacturing of measuring instruments. |
| in 2007 | Opened a printing plant at Kansai Plant |
| in 2008 | Began foreign matter removal cleaning for equipment and molds Exhibited for the first time at the International Plastic Fair |
| in 2009 | Exhibited for the first time at Interphex Japan |
| in 2010 | Developed a multi-point light stimulator "MiLSS" in the field of brain function analysis with Tohoku University (Joint patent) Developed an in-line camera analysis system |
| in 2013 | Completed construction of the S Site at the head office and factory (implemented by Takenaka Corporation) |
| in 2014 | Acquired 13,332.08 square meters in Gambara Industrial Park as a new factory site in Miyagi Prefecture |
| in 2015 | Obtained FSSC22000 and ISO22000 certification (Food Safety Standards) |
| in 2016 | Started a seminar to introduce image processing inspection Started the development of molding machine log analysis with molding machine manufacturers |
| in 2017 | Invention and patent application of big data processing to determine whether a molded product is good or bad and to identify signs of abnormality in molding equipment in advance Renovation of Kyoto Kasei Memorial Office "KY House" |
| in 2018 | Celebrated 50 Years in Business Invention and patent application of a method for predicting malfunction of injection molding machines and an inspection device using the method Construction of a new factory "Knowledge Park" in Miyagi Prefecture |
| in 2019 | Began sales of CFM, a mold clamping force monitoring device for molding machines |