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:
Sep. 18, 2012
Filed:
Sep. 28, 2009
Applicant:
Ryuji Tsukamoto, Ashigarakami-gun, JP;
Inventor:
Ryuji Tsukamoto, Ashigarakami-gun, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/10 (2006.01); H01L 41/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of manufacturing a piezoelectric actuator includes a first polarization of a piezoelectric body; polishing the piezoelectric body; first heating step of heating the piezoelectric body to a temperature which is not lower than a Curie point of the piezoelectric body and performing a re-polarization of the piezoelectric body in a second polarization of the piezoelectric body having been heated in the first heating step.