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：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：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：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：US5505794A

公开(公告)日：1996-04-09

申请号：US246076

申请日：1994-05-19

申请人： Ryoji Nakayama ,  Takuo Takeshita ,  Shouichi Kubo

发明人： Ryoji Nakayama ,  Takuo Takeshita ,  Shouichi Kubo

IPC分类号： B22F9/02 ,  C01B3/00 ,  H01F1/057 ,  H01M8/22

CPC分类号： C01B3/0031 ,  B22F9/023 ,  H01F1/0573 ,  Y02E60/327 ,  Y10S420/90

摘要： The present invention presents a method and an apparatus for heat treating a metallic material by performing hydrogen absorption in or desorption from the metallic material. The method includes the steps of recovering the hydrogen gas released from a desorption step and recycling it to a hydrogen absorbing step. Hydrogen recovering can be performed either in a device containing a hydrogen absorbing alloy or in a second heat treating furnace containing the metallic material. Various controlling devices are used to regulate the process of heat treating and recovering of hydrogen gas.

摘要翻译： 本发明提供一种通过对金属材料进行氢吸收或解吸附来对金属材料进行热处理的方法和装置。 该方法包括回收从解吸步骤释放的氢气并将其再循环到氢吸收步骤的步骤。 氢还原可以在含有吸氢合金的装置中或在含有金属材料的第二热处理炉中进行。 各种控制装置用于调节氢气的热处理和回收过程。

公开(公告)号：US5486239A

公开(公告)日：1996-01-23

申请号：US145956

申请日：1993-10-29

申请人： Ryoji Nakayama ,  Takuo Takeshita ,  Yoshinari Ishill

发明人： Ryoji Nakayama ,  Takuo Takeshita ,  Yoshinari Ishill

IPC分类号： B22F1/00 ,  B22F3/00 ,  B22F9/02 ,  C22C38/00 ,  H01F1/053 ,  H01F1/057 ,  H01F1/06 ,  H01F1/08 ,  H01F7/02 ,  H01F1/03

CPC分类号： H01F1/0573 ,  B22F9/023

摘要： A magnetically anisotropic R-T-B-M powder material which is starting with an R-T-B-M raw alloy material having a c-axis crystal orientation of an R.sub.2 T.sub.14 B-type intermetallic compound phase. In one embodiment, the starting material is compressed sintered in a magnetic field and recompressed in a magnetic field. In a second embodiment, the starting material is hot-pressed and homogenized. A method of manufacturing anisotropic magnets such as bond and full density magnets made from the magnetically anisotropic R-T-B-M powder material is disclosed.

摘要翻译： 磁性各向异性的R-T-B-M粉末材料，其起始于具有R2T14B型金属间化合物相的c轴晶体取向的R-T-B-M原料合金材料。 在一个实施方案中，将起始材料在磁场中压缩烧结并在磁场中再压缩。 在第二实施方案中，将原料热压并均化。 公开了一种制造各向异性磁体的方法，例如由磁各向异性的R-T-B-M粉末材料制成的粘结和全密度磁体。

公开(公告)号：US4981532A

公开(公告)日：1991-01-01

申请号：US234405

申请日：1988-08-19

申请人： Takuo Takeshita ,  Ryoji Nakayama ,  Tamotsu Ogawa

发明人： Takuo Takeshita ,  Ryoji Nakayama ,  Tamotsu Ogawa

IPC分类号： B22F9/02 ,  H01F1/057

CPC分类号： B22F9/023 ,  H01F1/0571 ,  H01F1/0573

摘要： In a rare earth-iron-boron alloy magnet powder, each individual particle includes a recrystallized grain structure containing a R.sub.2 Fe.sub.14 B intermetallic compound phase as a principal phase thereof, wherein R represents a rare earth element. The intermetallic compound phase are formed of recrystallized grains of a tetragonal crystal structure having an average crystal grain size of 0.05 .mu.m to 50 .mu.m. For producing the above magnet powder, a rear earth-iron-boron alloy material is first prepared. Then, hydrogen is occluded into the alloy material by holding the material at a temperature of 500.degree. C. to 1,000.degree. C. either in an atmosphere of hydrogen gas or in an atmosphere of hydrogen and inert gases. Subsequently, the alloy material is subjected to dehydrogenation at a temperature of 500.degree. C. to 1,000.degree. C. until the pressure of hydrogen in the atmosphere is decreased to no greater than 1.times.10.sup.-1 torr, and is subjected to cooling.

公开(公告)号：US09269481B2

公开(公告)日：2016-02-23

申请号：US11814603

申请日：2005-11-02

申请人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

发明人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

IPC分类号： B32B5/16 ,  B32B15/00 ,  H01F1/33 ,  B22F1/02 ,  C22C33/02 ,  H01F1/147 ,  H01F1/24 ,  H02K1/02

CPC分类号： H01F1/33 ,  B22F1/02 ,  B22F2998/00 ,  C22C33/0207 ,  H01F1/14766 ,  H01F1/24 ,  H02K1/02 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/32 ,  B22F2207/07

摘要： Oxide-coated Fe powder for producing various electromagnetic circuit components requiring high resistivity is provided. The oxide-coated Fe powder is a Mg-containing oxide film-coated iron powder coated with an Mg—Fe—O ternary-based deposition film at least containing (Mg, Fe)O. The (Mg,Fe)O is a crystalline MgO-dissolving wustite. The Mg—Fe—O ternary-based oxide deposition film has a sulfur-enriched layer containing a higher concentration of sulfur than that of central portion of the iron powder, fine crystalline texture having a grain size of 200 nm or less, and the outermost surface is substantially composed of MgO. A composite soft magnetic material using the Mg-containing oxide film-coated iron powder is also provided.

摘要翻译： 提供了用于生产需要高电阻率的各种电磁电路部件的氧化物涂覆的Fe粉末。 氧化物被覆的Fe粉末是含有至少含有（Mg，Fe）O的Mg-Fe-O三元系沉积膜的含Mg氧化物膜被覆铁粉末。 （Mg，Fe）O是结晶的MgO溶解的方钨矿。 Mg-Fe-O三元基氧化物沉积膜具有含有比铁粉中心部分更高浓度的硫的富集层，具有200nm以下的粒径的微细晶体结构， 表面基本上由MgO构成。 还提供了使用含Mg氧化物膜的铁粉的复合软磁性材料。