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:
Apr. 20, 1999
Filed:
Dec. 22, 1997
Applicant:
Inventors:
Masayuki Nashiki, Niwa-gun, JP;
Takanori Yokochi, Niwa-gun, JP;
Assignee:
Okuma Corporation, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ; H02P / ;
U.S. Cl.
CPC ...
318701 ; 318254 ; 318757 ; 318727 ; 318138 ;
Abstract
A motor control device that can control the rotational direction of a rotor with polarity in an initial position detection. The motor control device includes first metering voltage signal generating system for sequentially creating 2N-phase signals to an N-phase motor, current metering system for measuring stator winding current, and first rotational position arithmetic system for detecting an absolute rotational position corresponding to an electrical angle of 180.degree. based on the measured current.
Nashiki, Masayuki. (1999). Motor control device (U.S. Patent No. 5896019). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5896019
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile