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. 01, 2014
Filed:
Mar. 15, 2012
Kazutoshi Torashima, Yokohama, JP;
Yuji Kasanuki, Isehara, JP;
Kazutoshi Torashima, Yokohama, JP;
Yuji Kasanuki, Isehara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an electromechanical transducer which can prevent light from being incident on a receiving face, without deteriorating mechanical characteristics of a vibration film. The electromechanical transducer has at least one cellin which the vibration filmcontaining one electrodeout of two electrodesandthat are provided so as to interpose a spacetherebetween is vibratably supported. The electromechanical transducer has a stress relaxation layerformed on the vibration film, which has an acoustic impedance matching that of the vibration film, and has a light reflection layerformed on the stress relaxation layer