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:
Apr. 15, 2008
Filed:
May. 02, 2007
Alessandro Stuart Savoia, Rome, IT;
Giosuè Caliano, Rome, IT;
Alessandro Caronti, Rome, IT;
Cristina Longo, Pietramontecorvino, IT;
Massimo Pappalardo, Rome, IT;
Alessandro Stuart Savoia, Rome, IT;
Giosuè Caliano, Rome, IT;
Alessandro Caronti, Rome, IT;
Cristina Longo, Pietramontecorvino, IT;
Massimo Pappalardo, Rome, IT;
Esaote S.p.A., Milan, IT;
Abstract
The invention concerns a capacitive ultrasonic transducer, comprising an external layer operating as an external plate, provided with electrode means, capable to vibrate, and a stiff substrate, in turn provided with electrode means, wherein it further comprises n levels, with n≧2, interposed between the plate and the substrate, each level including a plurality of cavities, and m interface intermediate layers, capable to vibrate, among said n levels, with m=(n−1), the cavities of each one of said n levels being further defined by support means connected between faced surfaces of layers adjacent to said cavities, each one of said m intermediate layers being provided with electrode means, whereby the cavities of each level are interposed between a pair of electrode means belonging to either two adjacent intermediate layers or to an intermediate layer and to one out of the substrate and the plate.