| 1934 | Founded in Shiba, Minato-ku, Tokyo (formerly Shiba-ku, Tokyo-shi) as Suzuki Factory. |
| 1947 | Kinrei Machinery Manufacturing Corporation established |
| 1950 | Developed vertical type buncher |
| 1957 | Developed shielding machine |
| 1959 | Developed resistance wire shielding machine |
| 1960 | Developed vertical type 3-layer concentric buncher |
| 1967 | Developed vertical type double twist buncher |
| 1970 | Saitama Factory built |
| 1971 | Developed Φ300 double twist buncher |
| 1975 | Developed motorized wire pay-off machine Developed Φ500 double twist buncher |
| 1978 | Investment capital increased to ¥20,000,000 |
| 1979 | Developed Φ400 cap stainless single twist buncher |
| 1984 | Second Saitama Factory completed in Nagano, Gyoda City |
| 1985 | Design department introduces CAD system |
| 1986 | Developed high-speed type double twist buncher |
| 1987 | Headquarters building completed in Shiba Minato-ku |
| 1991 | Company name changed to Kinrei Corporation |
| 1992 | I.S.W. Factory completed in Isawa-chō, Iwate Prefecture |
| 1997 | HK560 type double twist buncher receives a Good Design award. |
| 1998 | 1,000 machines sent in our “export to America” venture Developed TU10 ultra-fine tubular strander, for ultra-thin wire (such as wire for LCD, etc.), and the L3Y vertical type shielding machine Investment capital increased to ¥ 45,000,000 |
| 1999 | Developed PV5D back twist mechanism for LAN cable |
| 2000 | Investment capital increased to ¥49,500,000 Development department introduces company-wide 3-dimensional CAD Developed FTH type constant tension pay-off machine |
| 2001 | Additional construction at Iwate factory (I.S.W.) Developed TU8 ultra-fine tubular strander |
| 2002 | Saitama factory was closed down, and all production was moved to the Iwate factory (I.S.W.) |
| 2003 | Developed DFV8 in/out type buncher for ultra-fine wire (vertical type) and DFH8 (horizontal type) |
| 2004 | KSW joint venture established in Jiangsu Province, China |
| 2005 | Developed clockwise Φ630 double twist buncher BZ6R Developed VX25 vertical type serve shield |
| 2006 | Developed Φ914 B-914 double twist buncher |
| 2007 | Developed DB630φ630 double twist buncher equipped with new wind-up control |
| 2009 | Factory building (for sheet metal and coating) built at Iwate factory (I.S.W.) |
| 2014 | Patent # 5603754 issued |
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