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:
Sep. 08, 2026
Filed:
Apr. 22, 2022
Applicant:
Nhk Spring Co., Ltd., Yokohama, JP;
Inventors:
Youhei Kameda, Yokohama, JP;
Tsuyoshi Matsuda, Yokohama, JP;
Yoshikazu Mineda, Yokohama, JP;
Soichi Nakayama, Yokohama, JP;
Assignee:
NHK SPRING CO., LTD., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/28 (2006.01);
U.S. Cl.
CPC ...
H02K 1/28 (2013.01);
Abstract
This rotor includes a rotor shaft, a permanent magnet held at an outer periphery of the rotor shaft, and a magnet reinforcement tube formed in a cylindrical shape and covering the permanent magnet from an outer peripheral side of the permanent magnet. The magnet reinforcement tube includes plural layers layered in a radial direction, and has plural fiber sheets wound individually for each layer, and each fiber sheet being solidified with resin.