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:
Apr. 25, 2023
Filed:
Nov. 19, 2020
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Shigeo Ishii, Tokyo, JP;
Takayuki Goto, Tokyo, JP;
Sumiaki Kishimoto, Tokyo, JP;
Hiroyuki Shimizu, Tokyo, JP;
Yuichi Namikawa, Tokyo, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B06B 1/02 (2006.01); G08B 6/00 (2006.01);
U.S. Cl.
CPC ...
B06B 1/0238 (2013.01); G08B 6/00 (2013.01); B06B 2201/55 (2013.01);
Abstract
Provided is a driving apparatus that sets a signal wave in a low-frequency region having a frequency of 10 Hz or more and 250 Hz or less as a modulating wave and outputs to a piezoelectric actuator a driving signal having a waveform obtained by modulating an amplitude of a sine wave in a high-frequency region having a frequency of 20 kHz or more and 40 kHz or less with the modulating wave.