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:
Aug. 03, 2021
Filed:
Apr. 25, 2017
Applicant:
Konica Minolta, Inc., Tokyo, JP;
Inventors:
Kazunari Tada, Tokyo, JP;
Naoki Shimizu, Tokyo, JP;
Assignee:
KONICA MINOLTA, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H01L 41/338 (2013.01); H01L 41/18 (2006.01); H01L 41/332 (2013.01); H01L 21/306 (2006.01); H01L 21/308 (2006.01);
U.S. Cl.
CPC ...
H01L 41/338 (2013.01); H01L 21/306 (2013.01); H01L 21/308 (2013.01); H01L 41/18 (2013.01); H01L 41/183 (2013.01); H01L 41/332 (2013.01);
Abstract
The present invention provides a piezoelectric element manufacturing method. The manufacturing method is a method of manufacturing a piezoelectric element comprising a piezoelectric body composite in which a piezoelectric body configured from a Pb-based piezoelectric material and a resin are alternately arranged, and comprises a step of etching, using an etching liquid, a plurality of parallel piezoelectric body segments formed by dicing. The etching liquid comprises a liquid which contains 0.1 to 20 mass % of hexafluorosilicic acid.