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:
Feb. 01, 2005
Filed:
Mar. 02, 2001
Fumio Tajima, Juo, JP;
Yutaka Matsunobu, Hitachinaka, JP;
Masashi Kitamura, Mito, JP;
Kiyoshi Yamaguchi, Mito, JP;
Osamu Koizumi, Ibaraki, JP;
Suetaro Shibukawa, Hitachinaka, JP;
Shigeki Morinaga, Hitachi, JP;
Yukinori Taneda, Yokohama, JP;
Hideki Nakamura, Yasugi, JP;
Hakaru Sasaki, Matsue, JP;
Shinichiro Yokoyama, Yasugi, JP;
Fumio Tajima, Juo, JP;
Yutaka Matsunobu, Hitachinaka, JP;
Masashi Kitamura, Mito, JP;
Kiyoshi Yamaguchi, Mito, JP;
Osamu Koizumi, Ibaraki, JP;
Suetaro Shibukawa, Hitachinaka, JP;
Shigeki Morinaga, Hitachi, JP;
Yukinori Taneda, Yokohama, JP;
Hideki Nakamura, Yasugi, JP;
Hakaru Sasaki, Matsue, JP;
Shinichiro Yokoyama, Yasugi, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
The rotary machine is composed of the rotor having magnetic poles and the stator having the stator yoke portion constituting the iron core tooth portion wound by the stator winding and the flux flow path of the magnetic poles. The rotor is composed of a metallic material having ferromagnetic parts and non-magnetic parts as a member and has a magnetic barrier area composed of the slit portion for blocking the bypath magnetic path in the periphery of the rotor and the non-magnetic parts. The rotary machine that produced torque can be increased sufficiently and the mechanical strength during high-speed running is improved and an electrical vehicle using it.