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:
Jan. 26, 2021
Filed:
Apr. 06, 2017
Sumitomo Electric Sintered Alloy, Ltd., Takahashi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Naoto Igarashi, Itami, JP;
Shinichi Hirono, Itami, JP;
Tomoyuki Ueno, Itami, JP;
Asako Watanabe, Itami, JP;
SUMITOMO ELECTRIC SINTERED ALLOY, LTD., Takahashi, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A dust core included in an axial-gap rotary electric machine. The dust core includes a sector-shaped plate-like yoke portion, and a tooth portion integrated with the yoke portion and projecting from the yoke portion. Denoting one of surfaces of the yoke portion from which the tooth portion projects as a toothed surface, the toothed surface has a concave portion provided between a peripheral edge of the tooth portion and a peripheral edge of the yoke portion.