METHOD AND APPARATUS FOR MAKING SPARK PLUG - Patent 1285481

(19)

(11)

EP 1 285 481 A1

(12)

(43)	Date of publication:
	26.02.2003 Bulletin 2003/09

(21)	Application number: 00929922.3

(22)	Date of filing: 30.05.2000

(51)	International Patent Classification (IPC)⁷: H01T 21/06

(86)	International application number:
	PCT/JP0003/479

(87)	International publication number:
	WO 0109/3389 (06.12.2001 Gazette 2001/49)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(71)	Applicant: NGK Spark Plug Co., Ltd.
	Nagoya-shi,Aichi 467-8525 (JP)

(72)	Inventor:
	FUJITA, Shigeo,NGK Spark Plug Co., Ltd Nagoya,Aichi 467-8525 (JP)

(74)	Representative: Nicholls, Michael John
	J.A. KEMP & CO.14, South SquareGray's Inn London WC1R 5JJ London WC1R 5JJ (GB)

(54)	METHOD AND APPARATUS FOR MAKING SPARK PLUG