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:
Jan. 26, 2016
Filed:
Oct. 12, 2011
Applicants:
Takao Ohnishi, Fuso-Town, JP;
Masayuki Uetani, Kasugai, JP;
Inventors:
Takao Ohnishi, Fuso-Town, JP;
Masayuki Uetani, Kasugai, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/257 (2013.01); H01L 41/04 (2006.01); H01L 41/053 (2006.01); H01L 41/09 (2006.01); H01L 41/332 (2013.01); H01L 41/27 (2013.01); H01L 41/29 (2013.01); B06B 1/06 (2006.01); H03H 9/17 (2006.01); H03H 3/02 (2006.01); F16K 31/00 (2006.01); H01L 41/338 (2013.01);
U.S. Cl.
CPC ...
H01L 41/257 (2013.01); H01L 41/04 (2013.01); H01L 41/053 (2013.01); H01L 41/0926 (2013.01); H01L 41/0933 (2013.01); H01L 41/0973 (2013.01); H01L 41/27 (2013.01); H01L 41/29 (2013.01); H01L 41/332 (2013.01); B06B 1/0603 (2013.01); B06B 1/0688 (2013.01); B06B 1/0696 (2013.01); F16K 31/005 (2013.01); H01L 41/338 (2013.01); H03H 3/02 (2013.01); H03H 9/172 (2013.01); H03H 9/178 (2013.01); H03H 2003/022 (2013.01); H03H 2003/023 (2013.01); H03H 2003/027 (2013.01); Y10T 29/42 (2015.01); Y10T 29/49005 (2013.01); Y10T 29/49155 (2013.01); Y10T 29/49156 (2015.01); Y10T 29/49798 (2015.01);
Abstract
There is provided a method for manufacturing a piezoelectric element, the method having a step of polarizing the fired piezoelectric body while fixing at least two positions in a direction perpendicular to the polarization direction. The method is a means for obtaining a piezoelectric element provided with a thin and flat fired piezoelectric body with no warpage.