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. 13, 1990
Filed:
Oct. 25, 1988
Applicant:
Inventors:
Hiroaki Tamae, Hirakata, JP;
Yoshihiro Ashizaki, Katano, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ;
U.S. Cl.
CPC ...
310162 ; 310 / ; 310 / ; 310154 ; 318602 ; 318685 ;
Abstract
A stepping motor having a non-touch rotation sensor includes rotor core 5 having magnetic pole teeth of a uniform angular pitch, a stator core 1 having plural magnetic pole teeth groups having magnetic pole teeth of the same angular pitch as the rotor core magnetic pole teeth pitch, and a rotor teeth sensor mounted on the stator core for detecting the rotor magnetic pole teeth and issuing polyphase electric signals.
Tamae, Hiroaki. (1990). Stepper motor with a rotor teeth sensor (U.S. Patent No. 4970423). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4970423
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile