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:
Dec. 11, 2018
Filed:
Mar. 20, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Tsutomu Miyamoto, Shiojiri, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/04 (2006.01); A61B 34/30 (2016.01); B06B 1/06 (2006.01); H01L 41/09 (2006.01); A61M 5/142 (2006.01); H02N 2/14 (2006.01);
U.S. Cl.
CPC ...
H01L 41/042 (2013.01); A61B 34/30 (2016.02); A61M 5/14228 (2013.01); B06B 1/0607 (2013.01); H01L 41/09 (2013.01); H02N 2/142 (2013.01); A61M 5/142 (2013.01); Y10S 901/19 (2013.01);
Abstract
A control circuit of a piezoelectric driving device includes: a signal generation unit that inputs a state inspection signal to a plurality of piezoelectric elements connected to each other in parallel; and a state detection unit that detects a state of the plurality of piezoelectric elements based on a state detection signal generated from the plurality of piezoelectric elements in accordance with the state inspection signal.