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:
May. 12, 2026
Filed:
Dec. 08, 2021
Sumitomo Bakelite Co., Ltd., Tokyo, JP;
Atsunori Nishikawa, Tokyo, JP;
Takahiro Harada, Tokyo, JP;
Shinya Yamamoto, Tokyo, JP;
Wataru Kosaka, Tokyo, JP;
SUMITOMO BAKELITE CO., LTD., Tokyo, JP;
Abstract
A stator () has a stator core having a plurality of tooth portions (), a slot () provided between the tooth portions () and accommodating a coil (), and the coil () accommodated in the slot (), the stator has a resin layer () provided on an inner surface of the slot () and made of an insulating resin composition, a wall surface (a resin layer surface () of an inner resin layer ()) of the resin layer () on an inner side of the slot () is provided in parallel with a rotating shaft direction, the resin composition of the resin layer () contains a thermosetting resin, and the thermosetting resin has a glass transition temperature Tg of 120° C. or higher.