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:
Nov. 28, 2017
Filed:
Sep. 04, 2014
Applicant:
Casio Computer Co., Ltd., Tokyo, JP;
Inventor:
Hideo Takenawa, Hamura, JP;
Assignee:
CASIO COMPUTER CO., LTD., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01); G04C 3/14 (2006.01); H02N 2/10 (2006.01); H02N 2/14 (2006.01);
U.S. Cl.
CPC ...
G04C 3/14 (2013.01); H02N 2/101 (2013.01); H02N 2/103 (2013.01); H02N 2/14 (2013.01); H01L 41/094 (2013.01); H01L 41/0926 (2013.01);
Abstract
A driving unit includes a rotor, a plurality of vibratory members, and a driving circuit. The vibratory members each include an action part in contact with the outer periphery of the rotor and a motional part including an expansion-and-contraction driver to expand and contract in response to an applied voltage. The motional part allows the action part to slide along the rotational direction of the rotor. The driving circuit applies voltages to the expansion-and-contraction drivers. The vibratory members are disposed in such a way that the action parts of the vibratory members hold the rotor between the action parts.