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. 08, 2025

Filed:

Dec. 29, 2020
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;

Inventor:

Shinya Naito, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 21/04 (2006.01);
U.S. Cl.
CPC ...
H02K 21/042 (2013.01);
Abstract

An armature portion includes a first and second armature core, and a core coupling portion that magnetically couples the first armature core to the second armature core. The first and second armature core includes magnetic pole groups that are magnetically coupled, respectively. A first and second magnetic flux are formed in the armature portion by magnets. A first magnetic circuit in which the first magnetic flux flows includes three magnetic pole groups, magnetic field cores, and the magnets. A second magnetic circuit in which the second magnetic flux flows includes two magnetic pole groups, a core coupling structure, the magnetic field cores, and the magnets. This structure reduces magnetic saturation of the magnetic circuit formed on the armature portion and eliminate the need to magnetically divide the armature cores in the machine moving direction, thereby increasing the intensity of the armature.


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Naito, Shinya. (2025). Electric machine (U.S. Patent No. 12272999). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12272999

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