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:
Apr. 18, 2023

Filed:

Jan. 21, 2020
Applicant:

Mitsui High-tec, Inc., Fukuoka, JP;

Inventors:

Hirokazu Arakawa, Fukuoka, JP;

Takashi Maruyama, Fukuoka, JP;

Kenichi Takasaki, Fukuoka, JP;

Assignee:

MITSUI HIGH-TEC, INC., Fukuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/06 (2006.01); H02K 15/02 (2006.01); B21D 28/22 (2006.01);
U.S. Cl.
CPC ...
H02K 15/02 (2013.01); B21D 28/22 (2013.01); H02K 1/06 (2013.01);
Abstract

A laminated iron core includes a plurality of blanked iron core pieces laminated together, a continuity of side parts of the iron core pieces configuring a side surface of the laminated iron core. The side part of each iron core piece includes a specific light reflection area having a prescribed width along a circumferential direction, where the specific light reflection area has different light reflection characteristics from the other area of the side part of the iron core piece, and a striped pattern, configured by the specific light reflection areas, exists on the side surface of the laminated iron core.


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