
| 1946 | Mar | SHIROKI KINZOKU KOGYO Co., Ltd. established. |
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Head Office, Tokyo Plant established (in Jujo Military Arsenal). ![]() |
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| 1950 | Oct. | Manufacture of doorframes and moldings started. |
| 1951 | May | Mass production of window regulators started. |
| 1954 | Apr. | Mass production of doorframes started. |
| 1956 | Jul. | Ex-Nagoya Plant started operation. (Nagoya Dept. at present) |
| 1959 | Dec. | Osaka Plant (in Ikeda-City) started operation. |
| 1960 | Jan. | Mass production of car keys started. |
| Nov. | Toyota Plant started operation. Mass production of seat adjusters started. |
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| 1963 | Dec. | Mass production of seat recliners started. |
| 1964 | Feb. | Tokyo Plant started operation. |
| Dec. | Affiliated with Tokyu Corp. | |
| 1967 | Jan. | Fujisawa Plant started operation. (Head Office moved.)![]() |
| 1970 | May | The company was listed on the 2nd Section of the Tokyo Stock Exchange. |
| 1972 | Oct. | The company was listed on the 2nd Section of the Nagoya Stock Exchange. |
| 1973 | Aug. | The company was listed on the 1st Section of the Tokyo and Nagoya Stock Exchange respectively. |
| 1977 | Aug. | Osaka Plant transferred to Ibaraki. |
| 1980 | Oct. | Toyokawa Plant started operation. |
| 1985 | Dec. | SHIROKI SHOJI Co. Ltd. established. |
| Dec. | Tokyo Plant consolidated with Fujisawa Plant. | |
| 1987 | Jan. | New Corporate Statement and Management Policy introduced. |
| 1988 | Mar. | SHIROKI-WICKES CORPORATION (SW MANUFACTURING, INC. at present) established. (the United States) |
| Jul. | Ex-Nagoya Plant consolidated with Toyokawa Plant. | |
| Sep. | The company changed its name to SHIROKI CORPORATION. SHIROKI SEIKI Co., Ltd established |
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| 1989 | May | SHIROKI U.S.A. Corporation established. |
| 1991 | Apr. | Nagoya Plant started operation. ![]() |
| Dec. | Margin trading issue listed on the Tokyo Stock Exchange. | |
| 1992 | Oct. | Nagoya Plant received "NIKKEI MOST UPDATED BUSINESS OFFICE AWARD." |
| 1993 | Dec. | Sun Circle merged into SHIROKI Group. |
| 1995 | Jun. | SWM Georgia L.L.C. established. (the United States) |
| 1996 | Nov. | 50 Years Anniversary |
| 1998 | Feb. | Nagoya Plant acquired the approval of ISO14001. |
| Sep. | SWM Georgia L.L.C. acquired the approval of QS9000 and ISO9002. | |
| Dec. | Fujisawa Plant acquired the approval of ISO14001. | |
| 1999 | Feb. | Domestic use of multi-functional medicare bed, "Sunflower Bed" was introduced into market. Toyokawa Head Office and its Plant acquired the approval of ISO9001. |
| Dec. | SWM started supplying their parts to an American automobile manufacture. | |
| 2000 | Mar. | Toyokawa Head Office and Osaka Plant respectively acquired the approval of ISO9001. |
| 2001 | Feb. | The Cooperation Agreement has concluded with Brose (Germany). ![]() |
| Aug. | KYUSHU SHIROKI Co., Ltd. established. | |
| 2002 | Jan. | SHIROKI CORP. (THAILAND) LTD. established. |
| Feb. | SHIROKI BROSE CORP. established. Received the Technical Development Award from Toyota Motor Corporation. |
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| Jul. | KYUSHU SHIROKI Co., Ltd. started operation. | |
| 2003 | Feb. | Received the Technical Development Award from Toyota Motor Corporation. |
| Aug. | Received the Management Award from TOKYU Group. Invested to ASAN CO., LTD, Korea. |
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| Oct. | GUANGZHOU SHIROKI CORP. established. | |
| Nov. | SHIROKI CORP. (THAILAND) LTD. started operation. | |
| 2004 | Aug. | New plant at SHIROKI CORP. (THAILAND) LTD. established. |
| 2005 | Apr. | GUANGZHOU SHIROKI Corp. started operation. |
| 2006 | Jul. | SHIROKI CREATE SERVICE CO., LTD. established. |
| 2007 | Jan. | SW Manufacturing, Inc. changed its name to SHIROKI North America, Inc. SWM Georgia, L.L.C. changed its name to SHIROKI-GA, LLC. SWM-GT, L.L.C. changed its name to SHIROKI-GT, LLC. |
| Mar. | SHIROKI-GA, LLC started operations. | |
| Jul. | Second plant of Guangzhou Shiroki Corp. started operations. | |
| Sep. | Made equity investment in Technico Industries Limited. |