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:
Aug. 25, 2026
Filed:
Jul. 05, 2024
Mabuchi Motor Co., Ltd., Chiba, JP;
Akira Matsunawa, Chiba, JP;
MABUCHI MOTOR CO., LTD., Chiba, JP;
Abstract
A resolver includes excitation coils and a detection coil. One of the excitation coils and the detection coil includes a sine coil and a cosine coil that transmit AC signals having phases of the electrical angle different from each other by 90 degrees. Further, the other coil is provided with an annular magnetic pole group in which a plurality of magnetic poles is disposed adjacent to each other in the circumferential direction at a facing face at which the rotor and the stator face each other. The plurality of sine coils and the plurality of the cosine coils are alternately disposed adjacent to each other in the circumferential direction at the facing face. The circumferential intervals between the magnetic poles included in the excitation coils and the detection coil are identical.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile