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. 29, 2013
Filed:
Jun. 16, 2009
Applicant:
Yasukazu Nihei, Kanagawa-ken, JP;
Inventor:
Yasukazu Nihei, Kanagawa-ken, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/10 (2006.01); H02N 2/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezoelectric film poling method in which, with respect to an unpoled piezoelectric film formed on a substrate by a vapor phase growth method and having a Curie point Tc not higher than 300° C., an electric field greater than a coercive electric field of the film is applied in a predetermined direction under a temperature condition not higher than 0° C. to orient spontaneous polarization of the film in the predetermined direction.
Nihei, Yasukazu. (2013). Piezoelectric film poling method (U.S. Patent No. 8567026). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8567026
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