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21. 发明申请

US20080100154A1 COMPACTED MAGNETIC CORE WITH HIGH RESISTANCE, MANUFACTURING METHOD THEREOF, AND MOTOR FOR ELECTRIC CAR 有权
标题翻译：具有高电阻的压电磁芯，其制造方法和电动马达
公开(公告)号：US20080100154A1
公开(公告)日：2008-05-01
申请号：US11924779
申请日：2007-10-26
申请人： Takao Imagawa , Yuichi Satsu , Matahiro Komuro
发明人： Takao Imagawa , Yuichi Satsu , Matahiro Komuro
IPC分类号： H01F3/08 , B22F1/02 , H02K15/02 , H02K15/12 , B22F3/02
CPC分类号： H01F41/0246 , B22F1/02 , B22F2003/248 , B22F2998/10 , C22C2202/02 , H01F1/24 , H01F3/08 , H02K1/02 , Y02T10/641 , B22F9/08 , B22F1/0085 , B22F3/02 , B22F3/24
摘要： A compacted magnetic core with a high resistance, which comprises compacted magnetic powder of an iron powder or an alloy powder containing iron as a main ingredient and a layer of a rare earth metal fluoride or an alkaline earth metal fluoride on the surface of the powder, wherein the rare earth metal fluoride or the alkaline earth metal fluoride contains fluorine-depleted crystal lattice at a rate of 10% or less.
摘要翻译：一种具有高电阻的压制磁芯，其包括在粉末表面上的铁粉或含铁作为主要成分的合金粉末和稀土金属氟化物或碱土金属氟化物层的压粉磁粉，其中所述稀土金属氟化物或所述碱土金属氟化物以10％以下的比例含有富含氟的晶格。

22. 发明申请

US20070134519A1 Rare-earth magnet and manufacturing method thereof and magnet motor 失效
标题翻译：稀土磁铁及其制造方法和磁铁
公开(公告)号：US20070134519A1
公开(公告)日：2007-06-14
申请号：US11652617
申请日：2007-01-12
申请人： Matahiro Komuro , Yuichi Satsu
发明人： Matahiro Komuro , Yuichi Satsu
IPC分类号： H01F1/06
CPC分类号： H01F1/0572 , H01F41/0293 , Y10T428/2991
摘要： The object of the present invention is to provide a rare earth magnet which enables to achieve a good balance between high coercive force and high residual magnetic flux density, and its manufacturing method. The present invention provides a rare earth magnet in which a layered grain boundary phase is formed on a surface or a potion of a grain boundary of Nd2Fe14B which is a main phase of an R—Fe—B (R is a rare-earth element) based magnet, and wherein the grain boundary phase contains a fluoride compound, and wherein a thickness of the fluoride compound is 10 μm or less, or a thickness of the fluoride compound is from 0.1 μm to 10 μm, and wherein the coverage of the fluoride compound over a main phase particle is 50% or more on average. Moreover, after layering fluoride compound powder, which is formed in plate-like shape, in the grain boundary phase, the rare earth magnet is manufactured by quenching the layered compound after melting it at a vacuum atmosphere at a predetermined temperature, or by heating and pressing the main phase and the fluoride compound to make the fluoride compound into a layered fluoride compound along the grain boundary phase.
摘要翻译：本发明的目的是提供一种能够在高矫顽力和高残留磁通密度之间实现良好平衡的稀土类磁铁及其制造方法。本发明提供一种稀土磁体，其中在Nd 2 Fe 14 B的晶界的表面或部分上形成层状晶界相，其为 R-Fe-B（R为稀土元素）的磁体的主相，其中，晶界相含有氟化物，氟化物的厚度为10μm以下，氟化合物为0.1〜10μm，氟化物在主相粒子上的覆盖率平均为50％以上。此外，在晶界相中形成板状的氟化物复合粉末之后，通过在预定温度下在真空气氛下或通过加热熔化之后将层状化合物淬火来制造稀土磁铁，按下主相和氟化物，使氟化合物沿着晶界相成为层状氟化物。

23. 发明授权

US06587318B2 Spin tunnel magneto-resistance effect type magnetic sensor and production method thereof 失效
公开(公告)号：US06587318B2
公开(公告)日：2003-07-01
申请号：US09987135
申请日：2001-11-13
申请人： Matahiro Komuro , Yoshiaki Kawato
发明人： Matahiro Komuro , Yoshiaki Kawato
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G01R33/098 , G11B5/00 , G11B5/3903 , G11B5/3909 , G11B5/3967 , Y10T29/49044
摘要： A magnetic sensor utilizing a spin tunnel magneto-resistance effect (TMR), comprising a tunnel insulating film, a first magnetic layer formed on one of the planes of the tunnel insulating film, a second magnetic layer formed on the other plane of the tunnel insulating film, a third magnetic layer containing an anti-ferromagnetic substance for fixing magnetization of the second magnetic layer, a second insulating film formed on at least one of the first and third magnetic layers and having an opening in a predetermined region, a first electrode electrically connected to one of the first and third magnetic layers only in the opening of the second insulating film, and a second electrode for causing a current to flow between the first electrode and itself through at least the first and second magnetic layers and the first insulating layer.

24. 发明授权

US06327107B1 Spin tunnel magneto-resistance effect type magnetic sensor and production method thereof 有权
标题翻译：旋转隧道磁阻效应型磁传感器及其制造方法
公开(公告)号：US06327107B1
公开(公告)日：2001-12-04
申请号：US09302228
申请日：1999-04-29
申请人： Matahiro Komuro , Yoshiaki Kawato
发明人： Matahiro Komuro , Yoshiaki Kawato
IPC分类号： G11B502
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G01R33/098 , G11B5/00 , G11B5/3903 , G11B5/3909 , G11B5/3967 , Y10T29/49044
摘要： A magnetic sensor utilizing a spin tunnel magneto-resistance effect (TMR), comprising a tunnel insulating film, a first magnetic layer formed on one of the planes of the tunnel insulating film, a second magnetic layer formed on the other plane of the tunnel insulating film, a third magnetic layer containing an anti-ferromagnetic substance for fixing magnetization of the second magnetic layer, a second insulating film formed on at least one of the first and third magnetic layers and having an opening in a predetermined region, a first electrode electrically connected to one of the first and third magnetic layers only in the opening of the second insulating film, and a second electrode for causing a current to flow between the first electrode and itself through at least the first and second magnetic layers and the first insulating layer.
摘要翻译：一种利用自旋隧道磁阻效应（TMR）的磁传感器，包括隧道绝缘膜，形成在隧道绝缘膜的一个平面上的第一磁性层，形成在隧道绝缘层的另一平面上的第二磁性层膜，含有用于固定第二磁性层的磁化的反铁磁性物质的第三磁性层，形成在第一和第三磁性层中的至少一个上并且在预定区域中具有开口的第二绝缘膜，第一电极电连接到仅在第二绝缘膜的开口中的第一和第三磁性层中的一个上，以及第二电极，用于使电流至少通过第一和第二磁性层和第一绝缘层在第一电极和自身之间流动。

25. 发明授权

US06325900B1 Spin tunnel magneto-resistance effect type magnetic sensor and production method thereof 有权
公开(公告)号：US06325900B1
公开(公告)日：2001-12-04
申请号：US09650734
申请日：2000-08-30
申请人： Matahiro Komuro , Yoshiaki Kawato
发明人： Matahiro Komuro , Yoshiaki Kawato
IPC分类号： C23C1434
摘要： A magnetic sensor utilizing a spin tunnel magneto-resistance effect (TMR), comprising a tunnel insulating film, a first magnetic layer formed on one of the planes of the tunnel insulating film, a second magnetic layer formed on the other plane of the tunnel insulating film, a third magnetic layer containing an anti-ferromagnetic substance for fixing magnetization of the second magnetic layer, a second insulating film formed on at least one of the first and third magnetic layers and having an opening in a predetermined region, a first electrode electrically connected to one of the first and third magnetic layers only in the opening of the second insulating film, and a second electrode for causing a current to flow between the first electrode and itself through at least the first and second magnetic layers and the first insulating layer.

26. 发明授权

US09129731B2 Sintered magnet 有权
标题翻译：烧结磁体
公开(公告)号：US09129731B2
公开(公告)日：2015-09-08
申请号：US13572812
申请日：2012-08-13
申请人： Matahiro Komuro , Yuichi Satsu , Isao Kitagawa , Akira Sugawara
发明人： Matahiro Komuro , Yuichi Satsu , Isao Kitagawa , Akira Sugawara
IPC分类号： H01F7/02 , H01F1/01 , H01F1/057
CPC分类号： H01F1/0572 , H01F1/0577 , H01F1/0579
摘要： Disclosed is a sintered magnet which is a rare-earth magnet using a less amount of a rare-earth element but having a higher maximum energy product and a higher coercivity. The sintered magnet includes a NdFeB crystal; and an FeCo crystal adjacent to the NdFeB crystal through the medium of a grain boundary. The FeCo crystal includes a core and a periphery and has a cobalt concentration decreasing from the core to the periphery. The FeCo crystal has a difference in cobalt concentration of 2 atomic percent or more between the core and the periphery. In the NdFeB crystal, cobalt and a heavy rare-earth element are unevenly distributed and enriched in the vicinity of the grain boundary.
摘要翻译：公开了一种使用少量稀土元素但具有较高最大能量积和较高矫顽力的稀土类磁体的烧结磁体。烧结磁体包括NdFeB晶体; 以及通过晶界的介质与NdFeB晶体相邻的FeCo晶体。 FeCo晶体包括芯和周边，并且具有从芯到周边的钴浓度降低。 FeCo晶体在芯和周边之间的钴浓度不同于2原子％以上。在NdFeB晶体中，钴和重稀土元素不均匀分布并富集在晶界附近。

27. 发明授权

US08388769B2 Powdered-iron magnet and rotating machine using the same 失效
标题翻译：粉铁磁铁和旋转机使用相同
公开(公告)号：US08388769B2
公开(公告)日：2013-03-05
申请号：US11641073
申请日：2006-12-19
申请人： Matahiro Komuro , Yuichi Satsu , Takashi Yasuhara
发明人： Matahiro Komuro , Yuichi Satsu , Takashi Yasuhara
IPC分类号： H01F1/053
CPC分类号： H01F1/0576 , H01F1/0572 , H01F41/0293 , H02K1/02 , H02K1/276 , H02K1/278
摘要： To mold a high-resistance magnet at low temperature, including room temperature, the magnet includes magnetic powders, metallic powders having a lower hardness than the magnetic powders and a high-resistance layer, wherein the magnetic powders occupy a larger volume than the metallic powders. In particular, the high-resistance layer contains a fluorine compound and is placed between the magnetic powder and the metallic powders.
摘要翻译：为了在包括室温的低温下模制高电阻磁体，磁体包括磁粉，具有比磁粉低的硬度的金属粉末和高电阻层，其中磁粉占据比金属粉末更大的体积。特别地，高电阻层含有氟化合物，并且被置于磁性粉末和金属粉末之间。

28. 发明申请

US20120145944A1 MAGNETIC MATERIAL AND MOTOR OBTAINED USING SAME 审中-公开
标题翻译：使用相同的磁性材料和电机
公开(公告)号：US20120145944A1
公开(公告)日：2012-06-14
申请号：US13390738
申请日：2010-08-11
申请人： Matahiro Komuro , Yuichi Satsu , Hiroyuki Suzuki
发明人： Matahiro Komuro , Yuichi Satsu , Hiroyuki Suzuki
IPC分类号： H01F1/01
CPC分类号： H02K1/02 , C01G49/00 , C01G49/009 , C01P2002/52 , C01P2002/72 , C01P2002/77 , C01P2006/32 , C01P2006/42 , H01F1/0572 , H01F1/0596 , H01F41/0293
摘要： Disclosed is a magnetic material in which 50% by volume of the magnetic particles are accounted for by the main phase of the magnet, the main phase having a Curie temperature (Curie point) of 200° C. or higher, a saturation magnetic-flux density at around 20° C. of 1.0 T (tesla) or higher, and a coercive force of 10 kOe or higher, the crystal structure of the main phase being stable up to 200° C., and in which phases other than the main phase which are present at the grain boundaries or grain surfaces have stabilized or improved the magnetic properties. This magnetic material comprises two ferromagnetic phases, i.e., a ferromagnetic compound which is composed of fluorine, iron, and one or more rare-earth elements including yttrium and ferromagnetic iron which contains fluorine, carbon, nitrogen, hydrogen, or boron. A fluoride and an oxyfluoride have been formed at some of the boundaries or surfaces of the grains of the ferromagnetic phases.
摘要翻译：公开了一种磁性材料，其中50体积％的磁性颗粒被磁体的主相占据，主相的居里温度（居里点）为200℃以上，饱和磁通量在约20℃下的密度为1.0T（特斯拉）或更高，矫顽力为10kOe以上，主相的晶体结构在200℃以下是稳定的，除主存在于晶界或晶粒表面的相具有稳定或改善的磁特性。该磁性材料包括两个铁磁相，即由氟，铁和一种或多种包含含有氟，碳，氮，氢或硼的钇和铁磁性铁的稀土元素构成的铁磁性化合物。已经在铁磁相的晶粒的一些边界或表面形成氟化物和氟氧化物。

29. 发明申请

US20110240909A1 MAGNETIC MATERIAL AND MOTOR USING THE SAME 有权
标题翻译：磁性材料和电机使用相同
公开(公告)号：US20110240909A1
公开(公告)日：2011-10-06
申请号：US13029348
申请日：2011-02-17
申请人： Takayuki KANDA , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
发明人： Takayuki KANDA , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
IPC分类号： H01F1/04 , H01F1/00
CPC分类号： H01F1/058 , H01F1/0009 , H01F1/0555 , H01F1/0575 , H01F1/0596 , H01F41/0293
摘要： Characteristics of a magnetic material are improved without using a heavy rare earth element as a scarce resource. By incorporating fluorine into a magnetic powder and controlling the crystal orientation in crystal grains, a magnetic material securing magnetic characteristics such as coercive force and residual flux density can be fabricated. As a result, the resource problem with heavy rare earth elements can be solved, and the magnetic material can be applied to magnetic circuits that require a high energy product, including various rotating machines and voice coil motors of hard discs.
摘要翻译：不使用重稀土元素作为稀有资源，磁性材料的特性得到改善。通过将氟加入到磁性粉末中并控制晶粒中的晶体取向，可以制造确保矫顽磁力和残余磁通密度等磁特性的磁性材料。结果，可以解决重稀土元素的资源问题，并且可以将磁性材料应用于需要高能量产物的磁路，包括各种旋转机器和硬盘的音圈电机。

30. 发明申请

US20110133112A1 FERROMAGNETIC COMPOUND MAGNET 失效
标题翻译：铁磁复合磁体
公开(公告)号：US20110133112A1
公开(公告)日：2011-06-09
申请号：US12956253
申请日：2010-11-30
申请人： Hiroyuki SUZUKI , Matahiro Komuro , Yuichi Satsu , Takao Imagawa
发明人： Hiroyuki SUZUKI , Matahiro Komuro , Yuichi Satsu , Takao Imagawa
IPC分类号： H01F1/04
CPC分类号： H01F1/055 , C22C38/005 , H01F1/0552 , H01F1/11 , H01F1/112
摘要： A ferromagnetic compound magnet in accordance with the present invention includes a ferromagnetic compound based on a binary alloy containing R—Fe system (R is a 4f transition element or Y) or a ternary allay containing R—Fe-T system (R is a 4f transition element or Y, and T is a 3d transition element except for Fe, or Mo, Nb or W), the ferromagnetic compound being characterized by: atomic percentage of the element R to the element Fe or to the elements Fe and T is 15% or lower; an element F is incorporated into an interstitial position in a crystal lattice of the alloy. The ferromagnetic compound is expressed in a chemical formula of: R2Fe17Fx; R2(Fe,T)17Fx; R3Fe29Fy; R3(Fe,T)29Fy; RFe12Fz; or R(Fe,T)12Fz (0
摘要翻译：根据本发明的铁磁性复合磁体包括基于含有R-Fe体系的二元合金（R为4f过渡元素或Y）或含有R-Fe-T体系的三元杂质的铁磁性化合物（R为4f 过渡元素或Y，T是除Fe或Mo，Nb或W以外的3d过渡元素），铁磁性化合物的特征在于：元素R与元素Fe或元素Fe和T的原子百分比为15 ％以下; 元素F被结合到合金的晶格中的间隙位置。铁磁性化合物以化学式表示：R2Fe17Fx; R2（Fe，T）17Fx; R3Fe29Fy; R3（Fe，T）29Fy; RFe12Fz; 或R（Fe，T）12Fz（0

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