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:
Oct. 08, 2013
Filed:
Jul. 08, 2010
Akihiro Hashimoto, Kitakyushu, JP;
Yusuke Hasuo, Kitakyushu, JP;
Akihiro Hashimoto, Kitakyushu, JP;
Yusuke Hasuo, Kitakyushu, JP;
Mitsui High-Tec, Inc., Kitakyushu-shi, Fukuoka, JP;
Abstract
A stator coreand its manufacturing method, the stator coreincluding laminated stator core sheets, each of the stator core sheetspunched out from a magnetic metal sheet, a central portion of the magnetic metal sheetpreviously punched out to form a rotor core sheet, the stator coreincluding a thin sectionformed in a magnetic pole pieceof each of the stator core sheets, the thin sectionformed by pressing both sides of the magnetic pole piecein a thickness direction and radially-inwardly elongating the magnetic pole piece. The present invention prevents the magnetic pole piecefrom being curved and improves interlocking accuracies and dimensional accuracies in blanking the rotor core sheetand the start core sheetfrom one magnetic metal sheet