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:
May. 10, 2005
Filed:
Apr. 23, 2003
Electrical-steel-sheet formed body for rotor core, rotor, rotary electric machine and related method
Munekatsu Shimada, Hachiouji, JP;
Hideaki Ono, Yokohama, JP;
Tetsurou Tayu, Yokosuka, JP;
Makoto Kano, Yokohama, JP;
Yu Owada, Yokosuka, JP;
Naoshi Sakata, Tokyo, JP;
Mitsuo Uchiyama, Yokosuka, JP;
Toshimitsu Matsuoka, Yokosuka, JP;
Kimihiro Shibata, Yokosuka, JP;
Shinichiro Kitada, Tokyo, JP;
Munekatsu Shimada, Hachiouji, JP;
Hideaki Ono, Yokohama, JP;
Tetsurou Tayu, Yokosuka, JP;
Makoto Kano, Yokohama, JP;
Yu Owada, Yokosuka, JP;
Naoshi Sakata, Tokyo, JP;
Mitsuo Uchiyama, Yokosuka, JP;
Toshimitsu Matsuoka, Yokosuka, JP;
Kimihiro Shibata, Yokosuka, JP;
Shinichiro Kitada, Tokyo, JP;
Nissan Motor Co., Ltd., Kanagawa-ken, JP;
Abstract
An electrical-steel-sheet formed body is provided with an opening portion into which a permanent magnet is inserted, and an outer-peripheral hardened portion formed on the electrical-steel-sheet formed body at an outer periphery side thereof for the opening portion and having a higher hardness than a remaining area of the electrical-steel-sheet formed body. The electrical-steel-sheet formed body can be used as the rotor of the built-in permanent magnet type rotary electric machine, and the built-in permanent magnet type rotary electric machine can be obtained.