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:
Feb. 02, 2021
Filed:
Mar. 08, 2019
Applicant:
Kensuke Yamada, Tokyo, JP;
Inventor:
Kensuke Yamada, Tokyo, JP;
Assignee:
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01); H02N 2/06 (2006.01); H02N 2/04 (2006.01); G02B 26/10 (2006.01);
U.S. Cl.
CPC ...
G02B 26/0858 (2013.01); G02B 26/10 (2013.01); H02N 2/046 (2013.01); H02N 2/06 (2013.01);
Abstract
An actuator includes a beam that supports an object to be driven, and a driving source that receives a driving signal and causes the object to rotate around a predetermined axis. The driving signal includes a sawtooth driving waveform, and a differential waveform of a falling section of the sawtooth driving waveform is formed of half sign waves having a wavelength that is a non-integral multiple of a ringing wavelength.