IMPROVEMENTS IN AND RELATING TO PIEZOELECTRIC COMPOSITES - Patent 0368986

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EP 0 368 986 A1

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(43)	Date of publication:
	23.05.1990 Bulletin 1990/21

(21)	Application number: 89906386.0

(22)	Date of filing: 22.05.1989

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International Patent Classification (IPC):

H01L 41/ 22^{( . )}

(86)	International application number:
	PCT/GB1989/000561

(87)	International publication number:
	WO 1989/011738 (30.11.1989 Gazette 1989/28)

(84)	Designated Contracting States:
	DE FR IT SE

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Priority:

26.05.1988 GB 19880012508

(71)	Applicant: PLESSEY OVERSEAS LIMITED
	Ilford Essex IG1 4AQ (GB)

(72)	Inventors:
	GOOSEY, Martin, Trevor 191 Weedon Road Northampton NN5 5DA (GB) SETH, Philip, Neil, Andrew Great Broughton Cleveland TS9 7HF (GB) GARNER, Geoffrey, Michael Northamptonshire NN1 5SB (GB)

(74)	Representative: Elliott, Frank Edward
	The Plessey Company plc. Intellectual Property Department Vicarage Lane Ilford, Essex IG1 4AQ Ilford, Essex IG1 4AQ (GB)

(54)	IMPROVEMENTS IN AND RELATING TO PIEZOELECTRIC COMPOSITES