The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2004
Filed:
May. 24, 2002
Applicant:
Inventor:
Kari Kirjavainen, Tampere, FI;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 1/302 ;
U.S. Cl.
CPC ...
G11C 1/302 ;
Abstract
An electromechanic film intended for transforming electric energy into mechanical energy and transforming mechanical energy into electric energy. The film ( ) is dielectric and formed of cells ( ), the ratio of the height and width of which cells is between 3:1 and 1:3. By joining two such films together and controlling them in such a way that in the first film ( ) the electric field strength decreases and in the second film ( ) the electric field strength increases, a bending acoustic element is provided.