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:
Sep. 15, 1992
Filed:
Jul. 05, 1991
Tomoharu Nonaka, Kanagawa, JP;
Hiroshi Makino, Kanagawa, JP;
Masahiro Takahashi, Kanagawa, JP;
Teiji Sata, Kanagawa, JP;
Daisuke Yoshino, Kanagawa, JP;
Fuji Xerox Corporation Ltd., Tokyo, JP;
Abstract
An electric motor includes at least a stator core carrying toroidal coils wound thereon, a magnet provided in opposition to the stator core so as to constitute a part of a rotor, and magnetic flux detection elements for detecting changes in magnetic polarity of the magnet so as to control a current flowing in the toroidal coils. The stator is provided with a select number of cut portions at its open end. The number of cut portions is not less than that of the magnetic flux detection elements. The winding positions of the toroidal coils are considered in order to maintain magnetic symmetry, the magnetic flux detection elements being provided in the cut portions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile