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. 23, 1999
Filed:
Oct. 27, 1998
Kenji Narita, Kawasaki, JP;
Takashi Suzuki, Kawasaki, JP;
Hiroyuki Okudera, Kawasaki, JP;
Yuji Kawai, Kawasaki, JP;
Yuji Souma, Kawasaki, JP;
Koji Kawanishi, Kawasaki, JP;
Yoshichika Fukuda, Kawasaki, JP;
Fujitsu General Limited, Kawasaki, JP;
Abstract
A permanent magnet rotor type electric motor is formed of a stator core generating a rotation magnetic field, and a rotor core rotationally situated inside the stator core. The rotor core includes a first core member for generating a magnet torque, permanent magnets embedded in the first core member for forming magnetic poles, and a second core member for generating a reluctance torque without having a permanent magnet therein. The second core member is coaxially united with the first core member so that the rotor core is divided into the first core member for generating the magnet torque and the second core member for generating the reluctance torque.