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. 15, 2026
Filed:
Dec. 23, 2022
Honda Motor Co., Ltd., Tokyo, JP;
Satoshi Oyama, Saitama, JP;
Daisuke Yamamoto, Saitama, JP;
HONDA MOTOR CO., LTD, Tokyo, JP;
Abstract
Provided are a permanent magnet recovery device and a permanent magnet recovery method capable of recovering, without degradation of permanent magnet properties, a permanent magnet attached to a laminated steel sheet, having an insulating film, via a resin material. A permanent magnet recovery device includes a heat-treating furnace that stores a permanent magnet holder in which permanent magnets are attached thereto, having insulating films, via a resin material and a high-frequency wave absorbent is provided at each end portion of the permanent magnet holder in a lamination direction of the laminated steel sheet so as to contact at least the resin material, and a microwave generator that emits microwaves into the heat-treating furnace. In this aspect, the permanent magnet holder is a predetermined rotating electrical machine rotor, and a high-frequency wave absorbent is further provided along an outer peripheral portion of the laminated steel sheet of the rotor.