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:
Sep. 02, 2014
Filed:
Apr. 22, 2011
Applicant:
Shuuji Adachi, Tokyo, JP;
Inventor:
Shuuji Adachi, Tokyo, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/06 (2006.01); H02K 15/03 (2006.01); H01F 41/02 (2006.01); H01F 7/02 (2006.01); H02K 1/27 (2006.01);
U.S. Cl.
CPC ...
H02K 15/03 (2013.01); H01F 41/0253 (2013.01); H01F 7/0221 (2013.01); H02K 1/276 (2013.01);
Abstract
There are provided a process of forming a recess groove having a depth shallower than and a width larger than the notch groove for fracturing at a portion of fracturing and splitting in the permanent magnet; a process of forming the notch groove for fracturing the permanent magnet in a groove bottom of the recess groove formed in the recess-groove forming process; and a process of fracturing and splitting the permanent magnet along the notch groove so as to obtain magnet pieces.