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1. 发明申请

US20110285486A1 PROCESS FOR PRODUCING METALLURGICAL POWDER, PROCESS FOR PRODUCING DUST CORE, DUST CORE, AND COIL COMPONENT 审中-公开
标题翻译：生产金属粉末的方法，生产除尘芯，粉芯和线圈组件的工艺
公开(公告)号：US20110285486A1
公开(公告)日：2011-11-24
申请号：US13145961
申请日：2010-01-14
申请人： Toru Maeda , Toshihiro Sakamoto , Asako Watanabe
发明人： Toru Maeda , Toshihiro Sakamoto , Asako Watanabe
IPC分类号： H01F3/08 , H01F5/00 , B22F1/00 , B22F3/02 , B05D1/36 , B05D3/00
CPC分类号： H01F41/0246 , B22F1/0062 , B22F1/025 , H01F1/14758 , H01F1/26 , H01F3/08
摘要： A process for producing metallurgical powder includes a step of coating surfaces of a plurality of first particles 10 with a first binder 30 and a step of coating a surface of the first binder 30 with a plurality of second particles having a diameter smaller than a particle diameter of the first particles 10. In the step of coating with the second particles 20, a plurality of second particles 20 having a diameter one fifth or less of the particle diameter of the first particles are used.
摘要翻译：一种生产冶金粉末的方法包括用第一粘合剂30涂覆多个第一颗粒10的表面的步骤和用直径小于粒径的多个第二颗粒涂覆第一粘合剂30的表面的步骤在第二颗粒20的涂覆步骤中，使用直径为第一颗粒直径的五分之一或更小的多个第二颗粒20。

2. 发明申请

US20120237769A1 POWDER FOR MAGNET 有权
标题翻译：磁粉粉
公开(公告)号：US20120237769A1
公开(公告)日：2012-09-20
申请号：US13496069
申请日：2011-04-13
申请人： Toru Maeda , Asako Watanabe
发明人： Toru Maeda , Asako Watanabe
IPC分类号： H01F1/01 , B22F3/24 , B22F3/02 , C23C8/08 , B22F1/00
CPC分类号： H01F1/0551 , B22F3/02 , B22F3/101 , B22F3/24 , B22F9/023 , C22C33/0278 , H01F1/0573 , H01F1/0578 , H01F41/0273 , Y10T428/2982
摘要： The present invention provides a powder for a magnet which can form a rare earth magnet having excellent magnetic characteristics and which has excellent moldability, a method for producing the powder for a magnet, a powder compact, and a rare earth-iron-boron-based alloy material.Magnetic particles constituting a powder for a magnet each include a structure in which a particle of a phase 3 of a hydrogen compound of a rare earth element is dispersed in a phase 2 of an iron-containing material. Since the phase 2 of the iron-containing material is uniformly present in each of the magnetic particles 1, the powder has excellent moldability and easily increases the density of a powder compact 4. The powder for a magnet can be produced by heat-treating a powder of a rare earth-iron-boron-based alloy (R—Fe—B-based alloy) in a hydrogen atmosphere at a temperature equal to or higher than the disproportionation temperature of the R—Fe—B-based alloy to separate the powder into the rare earth element and the iron-containing material and to produce the hydrogen compound of the rare earth element. The powder compact 4 is produced by compacting the powder for a magnet. The powder compact 4 is heat-treated in a vacuum to produce a R—Fe—B-based alloy material 5, and the R—Fe—B-based alloy 5 is magnetized to produce a R—Fe—B-based alloy magnet 6.
摘要翻译：本发明提供一种可形成磁特性优异且成型性优异的稀土类磁体的粉末，磁铁用粉末的制造方法，粉末成形体和稀土 - 铁 - 硼系的粉末合金材料。构成磁体用粉末的磁性粒子各自包含将稀土元素的氢化合物的相3的粒子分散在含铁材料的相2中的结构。由于含铁材料的相2均匀地存在于每个磁性颗粒1中，所以粉末具有优异的成型性，并且容易增加粉末压块4的密度。用于磁体的粉末可以通过热处理在等于或高于R-Fe-B基合金的歧化温度的温度下，在氢气氛中稀土 - 铁 - 硼基合金粉末（R-Fe-B基合金），以分离粉末进入稀土元素和含铁材料，并产生稀土元素的氢化合物。粉末压实体4是通过压实用于磁体的粉末来制造的。粉末压块4在真空中热处理以产生R-Fe-B基合金材料5，并且将R-Fe-B基合金5磁化以产生R-Fe-B基合金磁体 6。

3. 发明授权

US09314843B2 Powder for magnet 有权
标题翻译：磁粉粉
公开(公告)号：US09314843B2
公开(公告)日：2016-04-19
申请号：US13496069
申请日：2011-04-13
申请人： Toru Maeda , Asako Watanabe
发明人： Toru Maeda , Asako Watanabe
IPC分类号： H01F1/01 , B22F3/24 , B22F3/02 , C23C8/08 , B22F1/00 , B22F3/10 , B22F9/02 , C22C33/02 , H01F41/02 , H01F1/057
CPC分类号： H01F1/0551 , B22F3/02 , B22F3/101 , B22F3/24 , B22F9/023 , C22C33/0278 , H01F1/0573 , H01F1/0578 , H01F41/0273 , Y10T428/2982
摘要： The present invention provides a powder for a magnet which can form a rare earth magnet having excellent magnetic characteristics and which has excellent moldability, a method for producing the powder for a magnet, a powder compact, and a rare earth-iron-boron-based alloy material.
摘要翻译：本发明提供一种可形成磁特性优异且成型性优异的稀土类磁体的粉末，磁铁用粉末的制造方法，粉末成形体和稀土 - 铁 - 硼系的粉末合金材料。

4. 发明申请

US20120286191A1 POWDER FOR MAGNETIC MEMBER, POWDER COMPACT, AND MAGNETIC MEMBER 有权
标题翻译：磁粉会员，粉末电池和磁性会员的粉末
公开(公告)号：US20120286191A1
公开(公告)日：2012-11-15
申请号：US13511061
申请日：2011-05-10
申请人： Toru Maeda , Asako Watanabe
发明人： Toru Maeda , Asako Watanabe
IPC分类号： H01F1/06 , H01F1/08
CPC分类号： H01F1/0552 , B22F1/0062 , B22F2998/10 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0572 , H01F1/0573 , H01F1/0575 , H01F1/0576 , H01F1/0578 , H01F1/061 , H01F1/083 , H01F41/0293 , B22F3/02 , B22F2003/248
摘要： The present invention provides a powder for a magnetic member being excellent in moldability and difficult to oxidize, a powder compact produced from the powder, and a magnetic member suitable for a raw material of a magnetic member such as a rare earth magnet. A powder for a magnetic member includes magnetic particles 1 which constitute the powder for a magnetic member and each of which is composed of less than 40% by volume of a hydrogen compound 3 of a rare earth element, and the balance composed of an iron-containing material 2 which contains iron and an iron-boron alloy containing iron and boron. The hydrogen compound 3 of a rare earth element is dispersed in a phase of the iron-containing material 2. An antioxidant layer 4 having a low-oxygen permeability coefficient is provided on the surface of each of the magnetic particles 1. Since the phase of the iron-containing material 2 is uniformly present in each of the magnetic particles 1, the powder has excellent moldability and the density of a powder compact can be easily increased. By providing the antioxidant layer 4, oxidation of a newly formed surface formed on each of the magnetic particle 1 during molding is little oxidized, and a decrease in a magnetic phase ratio due to the presence of an oxide can be suppressed.
摘要翻译：本发明提供了一种成型性好，难以氧化的磁性部件粉末，由该粉末制成的粉末成形体，以及适用于稀土类磁铁等磁性部件的原料的磁性部件。磁性部件用粉末包括构成磁性部件用粉末的磁性粒子1，它们各自由少于40体积％的稀土元素的氢化合物3构成，其余由铁 - 含有铁的含铁材料2和含有铁和硼的铁 - 硼合金。稀土元素的氢化合物3分散在含铁材料2的相中。在每个磁性粒子1的表面上设置有具有低氧渗透系数的抗氧化层4。含铁材料2均匀地存在于每个磁性颗粒1中，粉末具有优异的成型性，并且粉末压块的密度可以容易地增加。通过设置抗氧化剂层4，在模制期间形成在每个磁性颗粒1上的新形成的表面的氧化几乎不被氧化，并且可以抑制由于存在氧化物而引起的磁相比的降低。

5. 发明授权

US09196403B2 Powder for magnetic member, powder compact, and magnetic member 有权
标题翻译：用于磁性构件，粉末压块和磁性构件的粉末
公开(公告)号：US09196403B2
公开(公告)日：2015-11-24
申请号：US13511061
申请日：2011-05-10
申请人： Toru Maeda , Asako Watanabe
发明人： Toru Maeda , Asako Watanabe
IPC分类号： H01F1/06 , H01F1/08 , H01F1/055 , H01F1/057 , B22F1/00 , C22C33/02 , C22C38/00
CPC分类号： H01F1/0552 , B22F1/0062 , B22F2998/10 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0572 , H01F1/0573 , H01F1/0575 , H01F1/0576 , H01F1/0578 , H01F1/061 , H01F1/083 , H01F41/0293 , B22F3/02 , B22F2003/248
摘要： The present invention provides a powder for a magnetic member being excellent in moldability and difficult to oxidize, a powder compact produced from the powder, and a magnetic member suitable for a raw material of a magnetic member such as a rare earth magnet. A powder for a magnetic member includes magnetic particles 1 which constitute the powder for a magnetic member and each of which is composed of less than 40% by volume of a hydrogen compound 3 of a rare earth element, and the balance composed of an iron-containing material 2 which contains iron and an iron-boron alloy containing iron and boron. The hydrogen compound 3 of a rare earth element is dispersed in a phase of the iron-containing material 2. An antioxidant layer 4 having a low-oxygen permeability coefficient is provided on the surface of each of the magnetic particles 1.
摘要翻译：本发明提供了一种成型性好，难以氧化的磁性部件粉末，由该粉末制成的粉末成形体，以及适用于稀土类磁铁等磁性部件的原料的磁性部件。磁性部件用粉末包括构成磁性部件用粉末的磁性粒子1，它们各自由少于40体积％的稀土元素的氢化合物3构成，其余由铁 - 含有铁的含铁材料2和含有铁和硼的铁 - 硼合金。稀土元素的氢化合物3分散在含铁材料2的相中。在每个磁性粒子1的表面上设置有低氧透过系数的抗氧化层4。

6. 发明授权

US08797137B2 Soft magnetic powder, granulated powder, dust core, electromagnetic component, and method for producing dust core 有权
标题翻译：软磁粉末，颗粒粉末，粉尘芯，电磁组件，以及生产粉尘芯的方法
公开(公告)号：US08797137B2
公开(公告)日：2014-08-05
申请号：US13505003
申请日：2011-05-17
申请人： Asako Watanabe , Toru Maeda
发明人： Asako Watanabe , Toru Maeda
IPC分类号： H01F27/24 , H01F27/02 , H01F5/00 , H01F1/00 , H01F1/04 , C22C38/06 , H01F1/33 , H01F1/24 , H01F41/02 , C22C38/08 , C22C38/02 , C22C38/00 , C22C38/04 , H01F3/08
CPC分类号： C22C38/02 , B22F1/02 , C22C38/002 , C22C38/04 , C22C38/06 , C22C38/08 , C22C2202/02 , H01F1/24 , H01F1/33 , H01F3/08 , H01F41/0246
摘要： Provided is a soft magnetic powder used for obtaining a dust core having a low hysteresis loss, in particular, in a high temperature range. A soft magnetic powder includes an aggregate of composite magnetic particles, each including a soft magnetic particle containing Fe, Si, and Al, and an insulating coating film disposed on the surface thereof, and satisfies the expressions (1) and (2) below: Expression (1) . . . 27≦2.5a+b≦29 and Expression (2) . . . 6≦b≦9, where a represents the Si content (mass %) and b represents the Al content (mass %). The soft magnetic powder is capable of reducing the hysteresis loss, in a high-temperature environment, of a dust core obtained using the soft magnetic powder.
摘要翻译：提供一种用于获得具有低磁滞损耗的压粉磁芯的软磁性粉末，特别是在高温范围内。软磁性粉末包括复合磁性粒子的集合体，各自包含含有Fe，Si，Al的软磁性粒子和配置在其表面的绝缘涂膜，满足下述式（1）和（2）：表达式（1）。。。 27＆nlE; 2.5a + b＆nlE; 29和表达式（2）。。。 6＆nlE; b＆nlE; 9，其中a表示Si含量（质量％），b表示Al含量（质量％）。该软磁性粉末能够降低在高温环境下使用软磁性粉末获得的粉尘芯的磁滞损耗。

7. 发明申请

US20130252004A1 RARE EARTH-IRON-NITROGEN-BASED ALLOY MATERIAL, METHOD FOR PRODUCING RARE EARTH-IRON-NITROGEN-BASED ALLOY MATERIAL, RARE EARTH-IRON-BASED ALLOY MATERIAL, AND METHOD FOR PRODUCING RARE EARTH-IRON-BASED ALLOY MATERIAL 审中-公开
标题翻译：稀土 - 铁 - 氮合金材料，生产稀土 - 硝基 - 氮合金材料的方法，稀土金属合金材料及其制备稀土类金属合金材料的方法
公开(公告)号：US20130252004A1
公开(公告)日：2013-09-26
申请号：US13824553
申请日：2012-05-22
申请人： Toru Maeda , Asako Watanabe , Motoi Nagasawa , Takeshi Kato
发明人： Toru Maeda , Asako Watanabe , Motoi Nagasawa , Takeshi Kato
IPC分类号： H01F1/053 , H01F41/02
CPC分类号： H01F1/053 , B22F3/087 , B22F3/1017 , B22F2998/10 , B22F2999/00 , C22C38/001 , C22C38/005 , C22C38/04 , C22C38/14 , H01F1/0573 , H01F1/059 , H01F41/0246 , H01F41/0266 , Y10T428/31678 , B22F1/0088 , B22F2201/013 , B22F2201/20 , B22F2201/10 , B22F3/02 , B22F2201/02
摘要： The present invention provides a rare earth-iron-nitrogen-based alloy material which can produce a rare earth magnet having excellent magnetic characteristics and a method for producing the same, a rare earth-iron-based alloy material suitable as a raw material of the rare earth magnet and a method for producing the alloy material. A rare earth-iron-based alloy material is heat-treated in a hydrogen-containing atmosphere to produce a multi-phase powder 1 in which a phase 3 of a hydrogen compound of a rare earth element is dispersedly present in a phase 2 of an iron-containing material. A powder compact 4 produced by compression-molding the multi-phase powder 1 is heat-treated in a vacuum with a magnetic field of 3 T or more applied, thereby forming a rare earth-iron-based alloy material 5. The rare earth-iron-based alloy material 5 is heat-treated in a nitrogen atmosphere with a magnetic field of 3.5 T or more applied, thereby forming a rare earth-iron-nitrogen-based alloy material 6. The rare earth-iron-based alloy material 5 has a structure in which a crystal of a rare earth-iron-based alloy is oriented in the c-axis direction. The rare earth-iron-nitrogen-based alloy material 6 composed of an ideal nitride can be formed by nitriding the rare earth-iron-based alloy material 5 having this oriented structure with the magnetic field applied, and a rare earth magnet 7 having excellent magnetic characteristics can be formed.
摘要翻译：本发明提供一种稀土 - 铁 - 氮系合金材料，其可以制造具有优异磁特性的稀土磁铁及其制造方法，稀土 - 铁基合金材料适合作为原料稀土磁体和合金材料的制造方法。稀土 - 铁基合金材料在含氢气氛中进行热处理，制成多相粉末1，其中稀土元素的氢化合物的相3分散存在于含铁材料。通过压缩多相粉末1制造的粉末压块4在施加3T以上的磁场的真空中进行热处理，从而形成稀土 - 铁基合金材料5.稀土 - 铁基合金材料5在施加3.5T以上的磁场的氮气气氛中进行热处理，形成稀土 - 铁 - 氮系合金材料6.稀土 - 铁系合金材料5 具有稀土 - 铁基合金的晶体在c轴方向取向的结构。由理想的氮化物构成的稀土 - 铁 - 氮系合金材料6可以通过使施加磁场的具有取向结构的稀土 - 铁系合金材料5氮化而形成，并且具有优异的稀土类磁铁7 可以形成磁特性。

8. 发明申请

US20120229245A1 SOFT MAGNETIC POWDER, GRANULATED POWDER, DUST CORE, ELECTROMAGNETIC COMPONENT, AND METHOD FOR PRODUCING DUST CORE 有权
标题翻译：软磁粉，颗粒粉，粉芯，电磁组件和生产粉芯的方法
公开(公告)号：US20120229245A1
公开(公告)日：2012-09-13
申请号：US13505003
申请日：2011-05-17
申请人： Asako Watanabe , Toru Maeda
发明人： Asako Watanabe , Toru Maeda
IPC分类号： H01F1/01 , C04B35/64 , H01F27/24 , H01F1/42
CPC分类号： C22C38/02 , B22F1/02 , C22C38/002 , C22C38/04 , C22C38/06 , C22C38/08 , C22C2202/02 , H01F1/24 , H01F1/33 , H01F3/08 , H01F41/0246
摘要： Provided is a soft magnetic powder used for obtaining a dust core having a low hysteresis loss, in particular, in a high temperature range. A soft magnetic powder includes an aggregate of composite magnetic particles, each including a soft magnetic particle containing Fe, Si, and Al, and an insulating coating film disposed on the surface thereof, and satisfies the expressions (1) and (2) below: Expression (1) . . . 27≦2.5a+b≦29 and Expression (2) . . . 6≦b≦9, where a represents the Si content (mass %) and b represents the Al content (mass %). The soft magnetic powder is capable of reducing the hysteresis loss, in a high-temperature environment, of a dust core obtained using the soft magnetic powder.
摘要翻译：提供一种用于获得具有低磁滞损耗的压粉磁芯的软磁性粉末，特别是在高温范围内。软磁性粉末包括复合磁性粒子的集合体，各自包含含有Fe，Si，Al的软磁性粒子和配置在其表面的绝缘涂膜，满足下述式（1）和（2）：表达式（1）。。。 27＆nlE; 2.5a + b＆nlE; 29和表达式（2）。。。 6＆nlE; b＆nlE; 9，其中a表示Si含量（质量％），b表示Al含量（质量％）。该软磁性粉末能够降低在高温环境下使用软磁性粉末获得的粉尘芯的磁滞损耗。

9. 发明申请

US20130181802A1 SOFT MAGNETIC POWDER, GRANULATED POWDER, DUST CORE, ELECTROMAGNETIC COMPONENT, AND METHOD FOR PRODUCING DUST CORE 审中-公开
标题翻译：软磁粉，颗粒粉，粉芯，电磁组件和生产粉芯的方法
公开(公告)号：US20130181802A1
公开(公告)日：2013-07-18
申请号：US13824106
申请日：2011-10-25
申请人： Asako Watanabe , Toru Maeda , Tomoyuki Ueno , Tomoyuki Ishimine
发明人： Asako Watanabe , Toru Maeda , Tomoyuki Ueno , Tomoyuki Ishimine
IPC分类号： H01F1/20 , H01F27/255 , H01F1/24 , H01F41/02 , H01F1/28
CPC分类号： H01F1/20 , B22F1/02 , B22F3/16 , B22F3/24 , B22F9/082 , B22F2003/248 , C22C33/0278 , C22C38/02 , C22C38/06 , H01F1/24 , H01F1/26 , H01F1/28 , H01F17/062 , H01F27/255 , H01F41/0246
摘要： Provided are a soft magnetic powder for obtaining a dust core having a low iron loss, the dust core, and a method for producing a dust core. The present invention relates to a soft magnetic powder including a plurality of soft magnetic particles, each having an insulating layer. The Vickers hardness HV0.1 of a material constituting the soft magnetic particles is 300 or more, and the insulating layer contains Si, O, and at least one of an alkali metal and Mg. As long as the soft magnetic powder has such features, a material having a high electric resistance, such as an iron-based alloy, can be used. The eddy current loss can be reduced, and it is possible to effectively obtain a dust core having a low iron loss.
摘要翻译：提供了一种用于获得具有低铁损的防尘芯，防尘芯和用于制造防尘芯的方法的软磁性粉末。本发明涉及包含多个软磁性粒子的软磁性粉末，各自具有绝缘层。构成软磁性粒子的材料的维氏硬度HV0.1为300以上，绝缘层含有Si，O，碱金属和Mg中的至少一种。只要软磁粉末具有这样的特征，就可以使用具有高电阻性的材料，例如铁基合金。可以降低涡电流损失，能够有效地获得铁损低铁粉。

10. 发明授权

US08123874B2 Soft magnetic material, dust core, method for manufacturing soft magnetic material, and method for manufacturing dust core 有权
标题翻译：软磁性材料，防尘芯，软磁材料的制造方法以及制造防尘芯的方法
公开(公告)号：US08123874B2
公开(公告)日：2012-02-28
申请号：US12518498
申请日：2008-09-03
申请人： Tomoyuki Ishimine , Toshihiro Sakamoto , Toru Maeda , Naoto Igarashi
发明人： Tomoyuki Ishimine , Toshihiro Sakamoto , Toru Maeda , Naoto Igarashi
IPC分类号： H01F1/20
CPC分类号： H01F3/02 , B22F1/0014 , B22F1/0062 , B22F1/007 , B22F2999/00 , C22C38/00 , C22C2202/02 , H01F1/24 , H01F1/26 , H01F1/33 , H01F41/0246 , Y10T428/2982 , B22F3/10 , B22F2201/02
摘要： A soft magnetic material, a dust core, a method for manufacturing the soft magnetic material, and a method for manufacturing the dust core that can improve DC bias characteristics are provided.A soft magnetic material includes a plurality of metal magnetic particles 10 whose coefficient of variation Cv (σ/μ), which is a ratio of a standard deviation (σ) of a particle size of the metal magnetic particles 10 to an average particle size (μ) thereof, is 0.40 or less and whose circularity Sf is 0.80 or more and 1 or less. The metal magnetic particles 10 preferably have an average particle size of 1 μm or more and 70 μm or less. The soft magnetic material preferably further includes an insulating coated film that surrounds a surface of each of the metal magnetic particles 10.
摘要翻译：提供软磁性材料，压粉芯，软磁性材料的制造方法以及可提高直流偏压特性的集尘芯的制造方法。软磁性材料包括多个金属磁性颗粒10，其金属磁性颗粒10的粒径与平均颗粒的标准偏差（＆sgr）的比值变化系数Cv（＆Sgr /μ）尺寸（μ）为0.40以下，圆形度Sf为0.80以上1以下。金属磁性粒子10的平均粒径优选为1μm以上且70μm以下。软磁性材料优选还包括围绕每个金属磁性颗粒10的表面的绝缘涂膜。

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