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:
Jan. 08, 1991
Filed:
Feb. 20, 1990
Applicant:
Inventor:
Takashi Sekimoto, Tokyo, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02F / ;
U.S. Cl.
CPC ...
318 66 ; 318696 ; 328811 ; 328814 ;
Abstract
A motor driving apparatus for driving a motor with a constant voltage by a driving pulse having a predetermined pulse width when the motor is rotated at a high speed, and for chop-driving the motor by using a chopping clock when the motor is rotated at a low speed.
Sekimoto, Takashi. (1991). Motor driving apparatus with speed determined chopped drive and constant (U.S. Patent No. 4983891). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4983891
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile