| 1917 |
Established Omi Silk Cotton Co., Ltd. in Hikone City; began production of semi-finished silk yarn (penny). |
| 1917-08-13 |
August 13, 1917 (Taisho 6). |
| 1917-08-13 |
Established on August 13, 1917 (Taisho 6). |
| 1917-10-15 |
October 15, 1917 (Taisho 6). |
| 1917-10-15 |
Founded on October 15, 1917 (Taisho 6) |
| 1919 |
Renamed company to Omi Silk Silk Spinning Co., Ltd. |
| 1937 |
Established 60,000 spindles of rayon staple spinning. |
| 1949 |
Established 10,000 spindles of cotton yarn spinning. |
| 1950 |
Moved headquarters to Osaka City. |
| 1953 |
Established 10,000 spindles of combed yarn spinning. |
| 1956 |
Established Kakogawa plant (rayon staple manufacturing factory). |
| 1959 |
Commenced spinning of synthetic yarn and synthetic blended yarn. |
| 1968 |
Renamed company to Omekenshi Co., Ltd. |
| 1969 |
Separated the Mikaredi division and established Mikaredi Co., Ltd. |
| 1983 |
Ventured into the electronic device business. |
| 1988 |
Established a super‑modern spinning factory at the Kakogawa plant. |
| 1993 |
Established special rayon manufacturing equipment at the Kakogawa plant. |
| 1994 |
Ventured into the nonwoven fabric business. |
| 1995 |
Started selling high‑performance fibers "Clavion" made of chitin and chitosan. |
| 1997 |
"Clavion" received the Minister of Commerce, Industry and Tourism Award. |
| 2001 |
Ventured into the cosmetics business. |
| 2006 |
Established a wholly‑owned local subsidiary "Kinjun (Shanghai) Trading Co., Ltd." in China. |
| 2012 |
Partnered with India's Grasim, the world’s largest rayon manufacturer. |
| 2013 |
The solar power system installed at the Kakogawa plant began operation. |
| 2013 |
March 4 (03 Omi, 04 Rayon) was designated as "Omi Kensi Rayon Day" by the Japan National Holiday Association. |
| 2013-03-04 |
March 4 (03 Omi, 04 Rayon) was designated as "Omi Kensi Rayon Day" by the Japan National Holiday Association. |
| 2015 |
Developed and began selling low‑calorie food ingredients made from wood pulp. |
| 2017 |
100th anniversary of establishment. |
| 2018 |
Acquired and made a subsidiary the company Umi Foods, expanding the food business. |
