(19)

(11)

EP 0 550 709 A1

(12)

(43) Date of publication: 14.07.1993 Bulletin 1993/28 (21) Application number: 92911352.0 (22) Date of filing: 28.01.1992

(51) International Patent Classification (IPC):  H02K 1/ 17( . ) H02K 41/ 03( . ) H02K 1/ 27( . ) H02K 53/ 00( . ) (86) International application number: PCT/US1992/000669 (87) International publication number: WO 1992/022123 (10.12.1992 Gazette 1992/31)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 03.06.1991 WO 1991US03877 (71) Applicant: MAGMA CORPORATION Honolulu, Hawaii 96813 (US)	(72) Inventors: HASEBE, Shigeta 26-6, Tokumaru 3-chome Tokyo 175 (JP) AOKI, Masayuki 16-10, Sangenjaya 2-chome Tokyo 154 (JP) (74) Representative: Williams, John Francis  WILLIAMS, POWELL & ASSOCIATES 34 Tavistock Street London WC2E 7PB London WC2E 7PB (GB)