Core, stator, and rotating electric device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12237718
APP PUB NO 20240266890A1
SERIAL NO

18638699

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Abstract

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A core used in an axial-gap rotating electric device includes an annular back yoke and a plurality of teeth protruding in an axial direction that is perpendicular to a first flat surface of the back yoke. The plurality of teeth are provided on the first flat surface at intervals in a circumferential direction. The back yoke and the teeth are constituted of an integrally-molded powder compact. A first curved section that connects a peripheral surface of each tooth and the first flat surface of the back yoke is provided at a corner between the tooth and the back yoke. The first curved section has a curvature radius ranging between 0.2 mm and 1.5 mm inclusive.

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Patent Owner(s)

  • SUMITOMO ELECTRIC INDUSTRIES LTD.; SUMITOMO ELECTRIC SINTERED ALLOY, LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukunaga, Yuka Osaka, JP 3 1
Nakamura, Yuichi Osaka, JP 141 1507
Saito, Tatsuya Osaka, JP 165 2057
Tsuruta, Hijiri Takahashi, JP 11 8
Ueno, Tomoyuki Osaka, JP 55 293

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