(19)
(11) EP 1 190 457 A1

(12)

(43) Date of publication:
27.03.2002 Bulletin 2002/13

(21) Application number: 00940592.9

(22) Date of filing: 22.06.2000
(51) International Patent Classification (IPC)7H01L 41/107
(86) International application number:
PCT/GB0002/418
(87) International publication number:
WO 0101/500 (04.01.2001 Gazette 2001/01)
(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

(30) Priority: 23.06.1999 GB 9914516

(71) Applicant: Marconi Caswell Limited
London WIX 8AQ (GB)

(72) Inventors:
  • SALLOWAY, Anthony, John
    Northampton NN3 3EP (GB)
  • MILLAR, Caroline Elizabeth
    Northants NN7 3NH (GB)

(74) Representative: Cockayne, Gillian 
Marconi Intellectual PropertyMarrable HouseThe VineyardsGt. Baddow
ChelmsfordEssex CM2 7QS
ChelmsfordEssex CM2 7QS (GB)

   


(54) PIEZO-ELECTRIC TRANSFORMER CIRCUIT