| 1966 | Establishment of Asahi Ciba Co., Ltd., a joint veuture with Ciba,for production of epoxy resins |
| 1970 | Launch of APR™ photosensitive resin,entry into the photosensitive materials business |
| 1971 | Establishment of Asahi-Schwebel Co., Ltd., a joint venture with Clark-Schwebel Corp. for production of glass fabric for printed circuit boards |
| 1971 | Start of research on microporous membranes |
| 1981 | Launch of Sunfort™ dry film photoresist |
| 1985 | Launch of plastic optical fiber |
| 1985 | Launch of photomask pellicles at Asahi Kasei Electronics Co., Ltd., |
| 1990 | Launch of Hipore™ separator for lithium-ion rechargeable batteries |
| 1990 | Launch of Pimel™ photosensitive polyimide precursor |
| 2000 | Acquisition of all shares of Asahi Ciba,making it a wholly owned subsidiary of the Asashi Kasei Group, and changed the name to Asahi Kasei Epoxy Co., Ltd. |
| 2003 | Acquisition of all shares of Asahi-Schwebel making it a wholly owned subsidiary of the Asahi Kasei Group |
| 2009 | Integration of all electronic materials operations of the Asashi Kasei Group, establishment of Asahi Kasei E-materials Corp. |
