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:
Oct. 14, 2014
Filed:
Apr. 14, 2011
Applicants:
Yuichi Masaki, Kawasaki, JP;
Yoshihiro Hasegawa, Tama, JP;
Inventors:
Yuichi Masaki, Kawasaki, JP;
Yoshihiro Hasegawa, Tama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/00 (2006.01); H04R 31/00 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
H04R 19/005 (2013.01); H04R 31/00 (2013.01);
Abstract
An electromechanical transducer includes a first electromagnetic element and a second electromagnetic element, such as electrodes, disposed opposite to each other with a sealed cavity therebetween. The sealed cavity is formed by removing a sacrifice layer and then performing sealing. A sealing portion is formed by superposing a film of a hardened second sealing material that has fluidity at normal temperature on a film of a first sealing material that does not have fluidity at normal temperature.