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. 08, 1994
Filed:
Feb. 04, 1993
Toshihiko Futami, Ashigara, JP;
Yoshiharu Shida, Fuji, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A rotator element for an electric motor is formed with a cylindrical core body which is to be rotated by a rotary filed produced by a winding of the electric mortor and a plurality of magnets. The core body is substantially made of stacked disc-shaped plates, each of which has cutout portions arranged on the circumference areas so that the cylindrical core body is provided with holes when the disc-shaped plates are stacked. The magnets are inserted in the holes. For smooth insertion in the hole, each of magnets has a cutaway portion. The cutaway portion is projected or extended from the hole. A ring body is placed on the outermost side of stacked disc plates so that the outer surface of said ring body is substantially conform to the surface of said core body and the inner surface of said ring body is opposed to said cutaway portions of the magnets.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile