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:
Mar. 31, 1998
Filed:
Dec. 11, 1995
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
318453 ; 314455 ; 314466 ; 314434 ;
Abstract
When a window glass catches an obstacle and driving current of a driving motor increases to a set maximum value, the driving current is controlled within the maximum set value to limit the obstacle catching force. Because the motor is controlled by a duty ratio of PWM signal, the motor speed can be controlled with ease and stable control of the motor is ensured.