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:
Oct. 29, 2024
Filed:
Jun. 24, 2021
Sanvac (Beijing) Magnetics Co., Ltd., Beijing, CN;
Beijing Zhong KE San Huan Hi-tech Co., Ltd., Beijing, CN;
Guoan Chen, Beijing, CN;
Haojie Wang, Beijing, CN;
Bin Fang, Beijing, CN;
Fei Du, Beijing, CN;
Zhan Wang, Beijing, CN;
Yugang Zhao, Beijing, CN;
SANVAC (BEIJING) MAGNETICS CO., LTD., Beijing, CN;
BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD., Beijing, CN;
Abstract
A NdFeB rare earth magnet includes a main phase and a grain boundary phase including a white grain boundary phase and a gray grain boundary phase. In a microstructure observation area of the rare earth magnet, an area of the white grain accounts for 1˜3% of a total area of the microstructure observation area, and an area of the gray grain boundary phase accounts for 2˜10% of the total area of the microstructure observation area.