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. 16, 2012
Filed:
Dec. 13, 2010
Akihiro Hashimoto, Kitakyushu, JP;
Akihiro Hashimoto, Kitakyushu, JP;
Mitsui High-Tec, Inc., Kitakyushu-shi, JP;
Abstract
A method for manufacturing a laminated core includes (1) blanking a rotor core sheetand a stator core sheetfrom a thin strip materialand (2) laminating the stator core sheetinside a die. The stator core sheetincludes a ring-shaped yoke pieceand plural magnetic pole piecesintegrally connecting to a radially inside of the yoke piece. Each of the magnetic pole piecesincludes a magnetic pole shaft pieceand a magnetic pole tooth piece. The magnetic pole piecesare formed by blanking preparatory slots; coining a part or a whole of the magnetic pole shaft piecesto elongate the same in a radially inward direction; and thereafter, blanking the finishing slotsand shaping the magnetic pole tooth pieces