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. 15, 2011
Filed:
Mar. 09, 2007
Kentaro Haruno, Toyota, JP;
Taketo Takeuchi, Nishio, JP;
Katsumi Amano, Kitakyushu, JP;
Takashi Fukumoto, Kitakyushu, JP;
Kazutoshi Ueda, Kitakyushu, JP;
Kentaro Haruno, Toyota, JP;
Taketo Takeuchi, Nishio, JP;
Katsumi Amano, Kitakyushu, JP;
Takashi Fukumoto, Kitakyushu, JP;
Kazutoshi Ueda, Kitakyushu, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Mitsui High-Tec, Inc., Fukuoka-ken, JP;
Abstract
A rotor includes: a rotor core fixedly attached to a rotational shaft and having a magnet-inserted hole portion; a magnet inserted into the magnet-inserted hole portion; and a resin portion injected into the magnet-inserted hole portion. The rotor core is constructed by axially stacking a plurality of electromagnetic steel sheets. The electromagnetic steel sheets include: an electromagnetic steel sheet having the magnet-inserted hole portion and a weight-reducing-purpose hole portion provided separately from the magnet-inserted hole portion; and an electromagnetic steel sheet located on at least one axial end of the rotor core and having a portion covering the hole portion formed in the electromagnetic steel sheet.