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.

Date of Patent:
Dec. 10, 2024

Filed:

Mar. 31, 2021
Applicants:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Sumitomo Electric Sintered Alloy, Ltd., Takahashi, JP;

Inventors:

Tatsuya Saito, Osaka, JP;

Tomoyuki Ueno, Osaka, JP;

Tomoyuki Ishimine, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/14 (2006.01); H02K 1/02 (2006.01); H02K 15/02 (2006.01); H02K 21/24 (2006.01);
U.S. Cl.
CPC ...
H02K 1/148 (2013.01); H02K 1/02 (2013.01); H02K 15/022 (2013.01); H02K 21/24 (2013.01);
Abstract

A core piece includes a first member in a column form and a second member in a plate form, the first member and the second member being configured by a green compact in which the first member and the second member are integrally formed, the green compact includes a plurality of soft magnetic particles having a flat shape, a first average aspect ratio of the soft magnetic particles is greater than or equal to 1.2 in a first cross section of the first member, a second average aspect ratio of the soft magnetic particles is greater than or equal to 1.2 in a second cross section of the second member, each of the first average aspect ratio and the second average aspect ratio is related to an average of lengths of soft magnetic particles in a direction of the stator core.


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