公开(公告)号：US07919200B2

公开(公告)日：2011-04-05

申请号：US11449874

申请日：2006-06-09

申请人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

发明人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

IPC分类号： B32B15/04

CPC分类号： H01F1/0572 ,  C22C38/005 ,  C22C38/10 ,  H01F1/0573 ,  H01F10/126 ,  H01F41/0266 ,  Y10T428/32 ,  Y10T428/325

摘要： This rare earth magnet having high strength and high electrical resistance has a structure including an R—Fe—B-based rare earth magnet particles 18 which are enclosed with a high strength and high electrical resistance composite layer 12. The high strength and high electrical resistance composite layer 12 is constituted from a glass-based layer 16 that has a structure comprising a glass phase or R oxide particles 13 dispersed in glass phase, and R oxide particle-based mixture layers 17 that are formed on both sides of the glass-based layer 16 and contain an R-rich alloy phase 14 which contains 50 atomic % or more of R in the grain boundary of the R oxide particles.

公开(公告)号：US20110128106A1

公开(公告)日：2011-06-02

申请号：US12929487

申请日：2011-01-28

申请人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

发明人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

IPC分类号： H01F7/02

CPC分类号： H01F1/0572 ,  C22C38/005 ,  C22C38/10 ,  H01F1/0573 ,  H01F10/126 ,  H01F41/0266 ,  Y10T428/32 ,  Y10T428/325

摘要： This rare earth magnet having high strength and high electrical resistance has a structure including an R—Fe—B-based rare earth magnet particles 18 which are enclosed with a high strength and high electrical resistance composite layer 12. The high strength and high electrical resistance composite layer 12 is constituted from a glass-based layer 16 that has a structure comprising a glass phase or R oxide particles 13 dispersed in glass phase, and R oxide particle-based mixture layers 17 that are formed on both sides of the glass-based layer 16 and contain an R-rich alloy phase 14 which contains 50 atomic % or more of R in the grain boundary of the R oxide particles.

摘要翻译： 这种具有高强度和高电阻的稀土磁体具有包含用高强度和高电阻复合层12包围的R-Fe-B系稀土磁体颗粒18的结构。高强度和高电阻 复合层12由具有分散在玻璃相中的玻璃相或R氧化物粒子13的结构的玻璃基层16和形成在玻璃基的两面的R氧化物粒子系混合层17构成 层16，并且含有在R氧化物粒子的晶界中含有50原子％以上的R的富R相合金相14。

公开(公告)号：US20060292395A1

公开(公告)日：2006-12-28

申请号：US11449874

申请日：2006-06-09

申请人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

发明人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

IPC分类号： B32B15/00

CPC分类号： H01F1/0572 ,  C22C38/005 ,  C22C38/10 ,  H01F1/0573 ,  H01F10/126 ,  H01F41/0266 ,  Y10T428/32 ,  Y10T428/325

摘要： This rare earth magnet having high strength and high electrical resistance has a structure including an R—Fe—B-based rare earth magnet particles 18 which are enclosed with a high strength and high electrical resistance composite layer 12. The high strength and high electrical resistance composite layer 12 is constituted from a glass-based layer 16 that has a structure comprising a glass phase or R oxide particles 13 dispersed in glass phase, and R oxide particle-based mixture layers 17 that are formed on both sides of the glass-based layer 16 and contain an R-rich alloy phase 14 which contains 50 atomic % or more of R in the grain boundary of the R oxide particles.

摘要翻译： 这种具有高强度和高电阻的稀土磁体具有包含用高强度和高电阻复合层12包围的R-Fe-B系稀土磁体颗粒18的结构。 高强度高电阻复合层12由具有玻璃相或玻璃相分散的R氧化物粒子13的结构的玻璃基层16和形成在玻璃相上的R氧化物粒子系混合层17构成 玻璃基层16的两侧，并且含有在R氧化物粒子的晶界中含有50原子％以上的R的富R相合金相14。

公开(公告)号：US08481179B2

公开(公告)日：2013-07-09

申请号：US12929487

申请日：2011-01-28

申请人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

发明人： Katsuhiko Mori ,  Ryoji Nakayama ,  Muneaki Watanabe ,  Koichiro Morimoto ,  Tetsurou Tayu ,  Yoshio Kawashita ,  Makoto Kano

IPC分类号： B32B15/04

CPC分类号： H01F1/0572 ,  C22C38/005 ,  C22C38/10 ,  H01F1/0573 ,  H01F10/126 ,  H01F41/0266 ,  Y10T428/32 ,  Y10T428/325

摘要： This rare earth magnet having high strength and high electrical resistance has a structure including an R—Fe—B-based rare earth magnet particles 18 which are enclosed with a high strength and high electrical resistance composite layer 12. The high strength and high electrical resistance composite layer 12 is constituted from a glass-based layer 16 that has a structure comprising a glass phase or R oxide particles 13 dispersed in glass phase, and R oxide particle-based mixture layers 17 that are formed on both sides of the glass-based layer 16 and contain an R-rich alloy phase 14 which contains 50 atomic % or more of R in the grain boundary of the R oxide particles.

摘要翻译： 这种具有高强度和高电阻的稀土磁体具有包含用高强度和高电阻复合层12包围的R-Fe-B系稀土磁体颗粒18的结构。高强度和高电阻 复合层12由具有分散在玻璃相中的玻璃相或R氧化物粒子13的结构的玻璃基层16和形成在玻璃基的两面的R氧化物粒子系混合层17构成 层16，并且含有在R氧化物粒子的晶界中含有50原子％以上的R的富R相合金相14。

公开(公告)号：US20070079904A1

公开(公告)日：2007-04-12

申请号：US10569429

申请日：2004-05-13

申请人： Katsuhiko Mori ,  Ryoji Nakayama ,  Hideaki Ono ,  Tetsurou Tayu ,  Munekatsu Shimada ,  Makoto Kano ,  Yoshio Kawashita

发明人： Katsuhiko Mori ,  Ryoji Nakayama ,  Hideaki Ono ,  Tetsurou Tayu ,  Munekatsu Shimada ,  Makoto Kano ,  Yoshio Kawashita

IPC分类号： H01F1/057

CPC分类号： C22C38/005 ,  C22C1/0441 ,  C22C38/10 ,  H01F1/0572 ,  H01F41/0253 ,  Y10T428/2991

摘要： A rare earth magnet powder has a chemical composition which includes R: 5 to 20% (wherein, R represents one or two or more rare earth elements being inclusive of Y but exclusive of Dy and Tb), one or two of Dy and Tb: 0.01 to 10%, and B: 3 to 20%, with the balance comprising Fe and inevitable impurities; and an average particle diameter of 10 to 1,000 μm, wherein 70% or more of the entire surface of the rare earth magnet powder is covered with a layer being rich in the content of one or two of Dy and Tb and having a thickness of 0.05 to 50 μm.

摘要翻译： 稀土类磁体粉末具有R：5〜20％（其中，R表示一种或两种以上的稀土元素，不包括Dy，不包括Dy和Tb）的化学组成，Dy和Tb中的一种或两种： 0.01〜10％，B：3〜20％，余量由Fe和不可避免的杂质构成; 平均粒径为10〜1000μm，其中，稀土类磁体粉末的整个表面的70％以上的层被Dy和Tb中的1种或2种以上的层积覆盖，厚度为0.05 到50个妈妈

公开(公告)号：US07632360B2

公开(公告)日：2009-12-15

申请号：US10569429

申请日：2004-05-13

申请人： Katsuhiko Mori ,  Ryoji Nakayama ,  Hideaki Ono ,  Takae Ono, legal representative ,  Tetsurou Tayu ,  Munekatsu Shimada ,  Makoto Kano ,  Yoshio Kawashita

发明人： Katsuhiko Mori ,  Ryoji Nakayama ,  Hideaki Ono ,  Tetsurou Tayu ,  Munekatsu Shimada ,  Makoto Kano ,  Yoshio Kawashita

IPC分类号： H01F1/057

CPC分类号： C22C38/005 ,  C22C1/0441 ,  C22C38/10 ,  H01F1/0572 ,  H01F41/0253 ,  Y10T428/2991

摘要： A rare earth magnet powder has a chemical composition which includes R: 5 to 20% (wherein, R represents one or two or more rare earth elements being inclusive of Y but exclusive of Dy and Tb), one or two of Dy and Tb: 0.01 to 10%, and B: 3 to 20%, with the balance comprising Fe and inevitable impurities; and an average particle diameter of 10 to 1,000 μm, wherein 70% or more of the entire surface of the rare earth magnet powder is covered with a layer being rich in the content of one or two of Dy and Tb and having a thickness of 0.05 to 50 μm.

摘要翻译： 稀土类磁体粉末具有R：5〜20％（其中，R表示一种或两种以上的稀土元素，不包括Dy，不包括Dy和Tb）的化学组成，Dy和Tb中的一种或两种： 0.01〜10％，B：3〜20％，余量由Fe和不可避免的杂质构成; 平均粒径为10〜1000μm，其中，稀土类磁体粉末的整个表面的70％以上的层被Dy和Tb中的1种或2种以上的层积覆盖，厚度为0.05 到50个妈妈

公开(公告)号：US07608153B2

公开(公告)日：2009-10-27

申请号：US11017010

申请日：2004-12-21

申请人： Tetsurou Tayu ,  Hideaki Ono ,  Takae Ono, legal representative ,  Yoshio Kawashita ,  Makoto Kano ,  Munekatsu Shimada

发明人： Tetsurou Tayu ,  Hideaki Ono ,  Yoshio Kawashita ,  Makoto Kano ,  Munekatsu Shimada

IPC分类号： H01F1/053 ,  H01F1/057

CPC分类号： H01F1/0576 ,  H01F1/08 ,  H02K1/02 ,  H02K1/278

摘要： A rare earth magnet includes rare earth magnet particles; and amorphous and/or crystalline terbium oxide present at the boundary of the rare earth magnet particles and represented by the formula: TbOn, wherein 1.5

摘要翻译： 稀土磁体包括稀土磁体颗粒; 以及存在于稀土磁体颗粒边界并由下式表示的无定形和/或结晶铽氧化物：TbOn，其中1.5

公开(公告)号：US20050133117A1

公开(公告)日：2005-06-23

申请号：US11017010

申请日：2004-12-21

申请人： Tetsurou Tayu ,  Hideaki Ono ,  Takae Ono ,  Yoshio Kawashita ,  Makoto Kano ,  Munekatsu Shimada

发明人： Tetsurou Tayu ,  Hideaki Ono ,  Takae Ono ,  Yoshio Kawashita ,  Makoto Kano ,  Munekatsu Shimada

IPC分类号： B22F1/02 ,  B22F3/02 ,  C22C33/02 ,  H01F1/057 ,  H01F1/08 ,  H01F1/09 ,  H01F41/02 ,  H02K1/02 ,  H02K1/27

CPC分类号： H01F1/0576 ,  H01F1/08 ,  H02K1/02 ,  H02K1/278

摘要： A rare earth magnet includes rare earth magnet particles; and amorphous and/or crystalline terbium oxide present at the boundary of the rare earth magnet particles and represented by the formula: TbOn, wherein 1.5

摘要翻译： 稀土磁体包括稀土磁体颗粒; 以及存在于稀土磁体颗粒边界并由下式表示的无定形和/或结晶铽氧化物：其中1.5

公开(公告)号：US20070012380A1

公开(公告)日：2007-01-18

申请号：US11441335

申请日：2006-05-26

申请人： Tetsurou Tayu ,  Hideaki Ono ,  Munekatsu Shimada ,  Makoto Kano ,  Takae Ono

发明人： Tetsurou Tayu ,  Hideaki Ono ,  Munekatsu Shimada ,  Makoto Kano ,  Takae Ono

IPC分类号： H01F1/08

CPC分类号： H01F1/09 ,  H01F1/0572 ,  H01F41/0293 ,  H02K1/02

摘要： A rare earth magnet has a sintered body including: rare earth magnet particles; and a rare earth oxide being present between the rare earth magnet particles, the rare earth oxide being represented by a following general formula (I): R2O3   (I) where R is any one of terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. The rare earth magnet particle is constituted by a cluster of numerous crystal grains, and an electric resistivity of the rare earth magnet is within a range from 26.0 to 75.0 μΩm.

摘要翻译： 稀土磁体具有：稀土类磁铁颗粒; 在稀土类磁体粒子之间存在稀土类氧化物，稀土类氧化物由下述通式（I）表示：＆lt;线内配方说明=“直列式”结束=“铅”？ （I）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中R是 铽，镝，钬，铒，ium，镱和镥。 稀土磁体颗粒由许多晶粒簇组成，稀土磁体的电阻率在26.0至75.0μm的范围内。

公开(公告)号：US20080199715A1

公开(公告)日：2008-08-21

申请号：US12081318

申请日：2008-04-15

申请人： Munekatsu Shimada ,  Hideaki Ono ,  Takae Ono ,  Makoto Kano ,  Tetsurou Tayu

发明人： Munekatsu Shimada ,  Hideaki Ono ,  Takae Ono ,  Makoto Kano ,  Tetsurou Tayu

IPC分类号： B22F3/12 ,  B02C17/00 ,  B22F1/00

CPC分类号： B82Y25/00 ,  H01F1/0579 ,  H01F41/0273 ,  Y10T428/12014

摘要： A Nd—Fe—B type anisotropic exchange spring magnet is produced by a method of obtaining powder of a Nd—Fe—B type rare earth magnet alloy which comprises hard magnetic phases and soft magnetic phases wherein a minimum width of the soft magnetic phases is smaller than or equal to 1 μm and a minimum distance between the soft magnetic phases is greater than or equal to 0.1 μm, obtaining a compressed powder body by compressing the powder, and obtaining the Nd—Fe—B type anisotropic exchange spring magnet by sintering the compressed powder body using a discharge plasma sintering unit.