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| April 1912 | Hayashida Kunitaro Co. established, starts manufacture and sale of wooden spouts for barrels. |
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| May 1953 | Starts manufacture and sale of plastic bottle caps. |
| October 1956 | Mikasa Industry Co., Ltd. established, opens Osaka Office. |
| November 1957 | Succeeds in the development of a flat printing machine. |
| April 1970 | Sets up Shin Nippon Polymer Co., a production factory, in Nara Prefecture. |
| April 1971 | Sets up Seibu Mikasa Co., Ltd. (currently Seibu Office) in Fukuoka Prefecture. |
| April 1973 | Sets up Uto Plastic Industry Co., Ltd. in Kumamoto Prefecture. |
| September 1977 | Opens Tokyo Office |
| October 1984 | Awarded the Ministry of Trade and Industry prize. |
| April 1987 | Chairman Koichi Hayashida receives the Imperial Oju Prize for recognition of inventions related to plastic caps. |
| Sets up Tamari Co., Ltd. in Ibaraki Prefecture. | |
| January 1990 | Shin Nippon Polymer Co. is renamed Shin Nippon Polymer Co. Ltd. |
| April 1990 | Uto Plastic Industry Co. is integrated into Shin Nippon Polymer Co., Ltd. and becomes Kyushu Factory (currently Kumamoto Factory). |
| Tamari Co. is integrated into Shin Nippon Polymer Co., Ltd. and becomes Kanto Factory (currently Ibaraki Factory). | |
| April 1993 | Mikasa Industry Co., Ltd. and Shin Nippon Polymer Co., Ltd. merge and unify manufacturing and sales. |
| March 1994 | Completes fully automated plant at Kanto Factory (currently Ibaraki Factory) in Ibaraki Prefecture. |
| March 1994 | Completes Narayama Laboratories in Nara Prefecture (currently Narayama Training Center) (in Kansai Science City). |
| April 1997 | Completes construction of a new PET bottle plant at Kyushu Factory in Kumamoto Prefecture. |
| August 1999 | Acquires ISO9001 quality management certification. |
| May 2006 | Completes construction of Tochigi Factory in Tochigi Prefecture. |
| December 2006 | Acquires ISO14001 environmental management system certification. |
| January 2010 | Started to use the ISO9001 quality management system as our own quality control system. |
| June 2012 | Made of the first presentation at PROPAK ASIA 2012(biggest packaging event in the region). |
| June 2013 | Made of presentation at PROPAK ASIA 2013. |
| June 2014 | MIKASA(THAILAND)CO., LTD is established in Thailand. |
| April 2015 | MIKASA CAP(THAILAND)CO., LTD is established in Thailand. |
| December 2017 | New head office is built in Nara Prefecture. Nara Factory Logistics Center begins operation. |