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:
Jul. 01, 1997
Filed:
Nov. 03, 1994
Applicant:
Inventors:
Assignee:
Nippon Thompson Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 12 ; 310 / ;
Abstract
A linear direct current motor that is able to maintain thrust at a constant level at all times regardless of changes in the relative positions of the primary and secondary sides. The motor includes a magnetic pole detection magnet having a number of magnetic poles one greater than that of a field magnet, and magnetic pole discrimination elements in the form of Hall effect elements that are acted on by the magnetic pole detection magnet.
Katagiri, Satoru. (1997). Linear direct current motor (U.S. Patent No. 5644176). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5644176
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile