Invention Grant
- Patent Title: Rare earth magnet, process for producing same, and motor using rare earth magnet
- Patent Title (中): 稀土磁铁,制造工艺及使用稀土磁铁的电机
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Application No.: US10809422Application Date: 2004-03-26
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Publication No.: US06984271B2Publication Date: 2006-01-10
- Inventor: Hideaki Ono, deceased
- Applicant: Tetsurou Tayu , Takae Ono, legal representative , Makoto Kano , Munekatsu Shimada , Yoshio Kawashita , Takeshi Yamauchi
- Applicant Address: JP Yokohama
- Assignee: Nissan Motor Co., Ltd.
- Current Assignee: Nissan Motor Co., Ltd.
- Current Assignee Address: JP Yokohama
- Agency: Foley & Lardner LLP
- Priority: JP2003-090340 20030328; JP2003-332933 20030925
- Main IPC: H01F1/053
- IPC: H01F1/053 ; H01F1/057

Abstract:
A rare earth magnet to be used in a motor. The rare earth magnet comprises rare earth magnet particles. Additionally, a rare earth oxide is present among the rare earth magnet particles, the rare earth oxide being represented by the following general formula (I): R2xR′2(1−x)O3 (I) where each of R and R′ is one element selected from the group consisting of yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) and lutetium (Lu), and 0
Public/Granted literature
- US20040187963A1 Rare earth magnet, process for producing same, and motor using rare earth magnet Public/Granted day:2004-09-30
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