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. 20, 2018
Filed:
Jun. 25, 2014
Applicant:
Mitsui Kinzoku Act Corporation, Kanagawa, JP;
Inventors:
Yasuyuki Watanabe, Kanagawa, JP;
Ayahito Kojima, Kanagawa, JP;
Assignee:
Mitsui Kinzoku Act Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01); E05F 15/00 (2015.01); B64C 13/42 (2006.01); H02P 7/29 (2016.01); B60J 5/04 (2006.01); B60J 5/06 (2006.01); B60J 5/10 (2006.01); E05F 15/603 (2015.01);
U.S. Cl.
CPC ...
H02P 7/29 (2013.01); B60J 5/04 (2013.01); B60J 5/06 (2013.01); B60J 5/10 (2013.01); E05F 15/603 (2015.01); E05Y 2400/334 (2013.01); E05Y 2900/531 (2013.01);
Abstract
A door opening/closing device includes: a motor; and a control unit that is configured to control a rotation rate of the motor by pulse-width modulation (PWM) control. The door opening/closing device opens and closes a door of a vehicle with power of the motor. The control unit is configured to perform the PWM control on the motor at a PWM frequency set so as to deviate from a resonance point of an installation body on which the motor is installed.