| Nov. |
1946 |
Founder, Mr.Iwao Sakamaki, established SAKAMAKI IRON WORKS to produce wood working machinery. |
| May |
1949 |
Start of manufacturing of Hemp-textile Sewing Machines. |
| Apr. |
1951 |
The factory was transferred to Drill Chuck manufacturing. |
| Jun. |
1951 |
The organization was changed to a corporation, named SAKAMAKI MFG. CO.,LTD. |
| Oct. |
1957 |
Nation-wide “YUKIWA” Group (Sales Network) was organized. |
| Dec. |
1957 |
Approval of JIS indication on chucks for portable electric power drills. |
| Mar. |
1962 |
Start of manufacturing of Collet Chucks. |
| Oct. |
1963 |
Approval of JIS indication on Drill Chucks for machine tools. |
| Feb. |
1965 |
Opening of Tokyo office. |
| May |
1965 |
Tap Chucks developed. |
| Sep. |
1966 |
Manual Index Tables developed. |
| Nov. |
1967 |
Automatic Index Tables developed. |
| Jul. |
1968 |
KAWAGUCHI FACTORY built. |
| Jul. |
1970 |
Start of manufacturing of Keyless Drill Chucks. |
| Sep. |
1971 |
Quick Chucks developed. |
| Sep. |
1972 |
Opening of Osaka office. |
| Aug. |
1975 |
Tap Holders developed. |
| Jun. |
1976 |
NC Rotary Tables developed. |
| Nov. |
1978 |
Start of manufacturing of Drill Chucks for Hobby-use. |
| Aug. |
1980 |
KOHWA SEIKI CO., LTD. established. |
| Jan. |
1982 |
Drill Mill Chucks developed. |
| May |
1983 |
Start of manufacturing of Duplex-holding Tools. |
| Aug. |
1983 |
KAINOSWA Factory built. |
| Mar. |
1984 |
Our Drill Chuck was equipped with Space Shuttle “Challenger” and has been used for space works. |
| Oct. |
1984 |
KAINOSWA Factory built more. |
| Oct. |
1984 |
Development of NC Coupling Index Rotary Tables. |
| Dec. |
1986 |
Pencil Mill Chucks developed. |
| Sep. |
1987 |
CNC Rotary Table SNC Series developed. |
| Apr. |
1988 |
Mr. Iwao Sakamaki assumes the chairman, and Mr. Kazuo Sakamaki assumes the president. |
| Dec. |
1988 |
Keyless Drill Chucks for cordless electric drills developed. |
| Nov. |
1989 |
Corporate name changed to YUKIWA SEIKO INC. |
| Mar. |
1990 |
Awarded with Economics Promotion Prize of Niigata Pref. |
| Aug. |
1990 |
Private Placement Bond issued. |
| Aug. |
1991 |
Opening of new Head Office & Factory |
| Sep. |
1991 |
Establishment of YUKIWA SEIKO U.S.A., INC. in North Carolina. |
| Mar. |
1992 |
YUKIWA INTERNATIONAL INC. established. |
| May |
1993 |
Opening of Nagoya office. |
| Mar. |
1994 |
Super G1 Chucks developed. |
| Nov. |
1995 |
CNC Rotary Table “YNC Series” developed. |
| Sep. |
1996 |
KAINOSWA Factory built more. |
| Aug. |
1997 |
Approval of ISO9001. |
| Feb. |
1999 |
New Drill Mill Chucks developed. |
| Jul. |
1999 |
All-metal Sleeve Keyless Chucks for Portable Drills developed. |
| Oct. |
1999 |
Shrink-fit-holders developed. |
| Jan. |
2000 |
Controller “BC1” for CNC Rotary Table developed. |
| Feb. |
2000 |
Awarded JSAI “Matsubara Invention Prize” for Keyless Drill Chucks with Lock Device. |
| Nov. |
2000 |
Awarded “Technology Prize” of Niigata Prefectural Governor. |
| Nov. |
2000 |
CNC Tilting Rotary Table “TNT Series” developed. |
| Apr. |
2001 |
Awarded with Minister of Science and Technology at development of industrial chucks. |
| May |
2002 |
KAINOSWA Factory built more. |
| Jan. |
2003 |
CNC Rotary Table “JNC Series” developed. |
| Mar. |
2003 |
Tokyo office - moving to the new location. |
| Dec. |
2003 |
Approval of ISO14001 |
| Nov. |
2004 |
Direct Drive CNC Rotary Table developed. |
| Jan. |
2005 |
Hybrid G1 Chucks developed. |
| Aug. |
2006 |
Approval of ISO9001:2000. |
| Apr. |
2008 |
Approval of new JIS mark indication on Drill Chucks. |
| May |
2008 |
Kazuo Sakamaki, president, awarded “Medal with Yellow Ribbon” at development of industrial chucks. |
| Nov. |
2008 |
Opening of YUKIWA SEIKO INC. SHANGHAI REP. OFFICE. |
| Dec. |
2009 |
Elected as one of 1400 Job-Creating Companies by Ministry of Economy, Trade and Industry. |
| Aug. |
2011 |
Green G1 Chucks developed. |
| Oct. |
2012 |
Green G1 Chucks win the "Good Design Award" by Japanese design promotion meeting sponsorship. Also elected as "Good Design best 100." |
| Nov. |
2012 |
Green G1 Chucks win the "Frontier Good Design Award." (The Award of President of Small and Medium Enterprise Agency) |
| Nov. |
2013 |
All stainless keyed drill chucks developed. |
| Jul. |
2014 |
Collet Chucks "A series and B series" developed. |
| Nov. |
2014 |
2nd factory at Head Office built. |
| may. |
2015 |
Satsumashiranami circle awarded the Niigata prefectural governor award at the Niigata district QC circle meeting. |
YUKIWA SEIKO INC Japan
