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. 16, 1999
Filed:
Apr. 09, 1999
Applicant:
Inventor:
Tsukasa Kawakami, Obama, JP;
Assignee:
Shibaura Engineering Works Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310156 ; 310216 ; 310261 ;
Abstract
A motor mounted in a vehicle having ferrite magnet section formed as a rotor core. The ferrite magnet section has a plurality of recesses, or through holes, circumferentially provided along an axial direction in a space-apart relation. A plurality of permanent magnet pieces are respectively fitted in the corresponding recess of the ferrite magnet section. The permanent magnet pieces are made of a permanent-magnetic material which has greater ferromagnetic property than that of the ferrite magnet section.