| 1938 | Kyoritsu Gokin Limited Partnership established. |
| 1939 | Kyoritsu Gokin becomes a public company. |
| 1944 | Designated a naval inspection factory. |
| 1948 | Joins the Japan Cemented Carbide Tool Manufacturer's Association as a founding member. |
| 1957 | Spray nozzle manufacturing begins |
| 1958 | Everloy Shoji Co., Ltd. is established. |
| 1960 | Tokyo sales office opens. |
| 1973 | Hiroshima sales office opens. |
| 1979 | Kakuzo Matsumoto becomes Chairman of the Board, and Kozo Matsumoto becomes President. |
| 1980 | Nozzle factory completed in Kaibara, Hyogo. |
| 1986 | Chairman Kakuzo Matsumoto receives the Science and Technology Agency Director's Award and a Dark-blue Ribbon Medal. |
| 1989 | Cemented carbide factory completed in Kaibara, Hyogo. Chairman Kakuzo Matsumoto receives a Yellow Ribbon Medal. |
| 1990 | Kyushu sales office opens. |
| 1992 | Tokyo sales office is promoted to a branch office. |
| 1994 | Addition added to Kaibara cemented carbide factory. |
| 1995 | Processed goods factory established at headquarters. |
| 1997 | Specialized equipment department is established. |
| 1998 | Kyushu Everloy Co., Ltd. Kumamoto factory completed. |
| 1999 | Nozzle division certification: ISO9001 Cemented carbide division certification: ISO9002 |
| 2000 | Kyushu sales office is promoted to a branch office. |
| 2001 | Processing division certification: ISO9002 |
| 2002 | Kaibara factory nozzle division certification: ISO14001 |
| 2004 | New headquarters completed for Everloy Shoji Co., Ltd. Cemented carbide division certification: ISO14001 |
| 2005 | Addition added to Kaibara nozzle factory. |
| 2006 | DNX nozzle awarded the Agency of Natural Resources and Energy Director's Award. Company-wide certification: ISO9001 |
| 2007 | Addition added to Kyushu Everloy Kumamoto Factory #2. |
| 2008 | 70th anniversary for Kyoritsu Gokin, 50th anniversary for Everloy Shoji. Kozo Matsumoto becomes Chairman of the Board, and Keiro Fujiwara becomes President. |
| 2009 | Company-wide certification: ISO9001/ISO14001 |
| 2012 | Addition added to Kyushu Everloy Kumamoto Factory #3. Awarded the Nishinomiya Tech Prize. |
| 2014 | Local subsidiary established in Shanghai, China |
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