Corporate History

	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.

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