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71. 发明申请

US20050133117A1 Rare earth magnet and method therefor 有权
标题翻译：稀土磁铁及其方法
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

72. 发明授权

US5240768A Articles containing metal fibers 失效
标题翻译：含金属纤维的物品
公开(公告)号：US5240768A
公开(公告)日：1993-08-31
申请号：US773985
申请日：1991-10-09
申请人： Robin E. Wright , Peter A. Bellus
发明人： Robin E. Wright , Peter A. Bellus
IPC分类号： B22F1/00 , B22F9/30 , G11B5/714 , H01F1/06 , H01F1/08 , H01F1/44 , H01Q17/00
CPC分类号： H01Q17/002 , B22F1/004 , B22F9/30 , G11B5/714 , H01F1/06 , H01F1/08 , H01F1/442 , Y10S428/90 , Y10T428/25 , Y10T428/31544
摘要： A slurry comprises a ferromagnetic fiber having an aspect ratio of 10 to 10,000 and an organic liquid medium that is unreactive with the metal fibers.The metal fibers are provided by preparing a mixture comprising a thermally unstable metal complex compound, comprising at least one ferromagnetic metal, in a liquid medium, applying energy to said mixture in the presence of an externally applied magnetic field to decompose said complex compound, and isolating the deposited metal fibers.Articles are provided by the impregnation of metal fibers of the invention into and onto a porous substrate.
摘要翻译：浆料包含纵横比为10至10,000的铁磁纤维和与金属纤维不反应的有机液体介质。通过在外部施加的磁场的存在下，通过制备包含热不稳定的金属络合物的混合物来提供金属纤维，所述混合物包含至少一种铁磁性金属，在液体介质中，向所述混合物施加能量以分解所述络合物;以及隔离沉积的金属纤维。通过将本发明的金属纤维浸渍到多孔基材上并提供给制品。

73. 发明授权

US4251293A Magnetically anisotropic alloys by deformation processing 失效
标题翻译：磁各向异性合金通过变形加工
公开(公告)号：US4251293A
公开(公告)日：1981-02-17
申请号：US16115
申请日：1979-02-28
申请人： Sungho Jin
发明人： Sungho Jin
IPC分类号： H01F1/00 , C22F1/00 , H01F1/032 , H01F1/08 , H01F1/14 , H01F1/02
CPC分类号： H01F1/08
摘要： Magnetic alloys are disclosed having an anisotropic magnetic structure produced by thermomechanical treatment in the absence of a magnetic field. Disclosed treatment calls for developing magnetic particles in an alloy by cooling such alloy in a controlled fashion from a first temperature at which the alloy is in a predominantly single phase state to a second temperature at which the alloy is in a multi-phase state.Treatment further calls for deforming the alloy, resulting in cross-sectional area reduction of at least 30 percent (corresponding to elongation of magnetic particles by a factor of at least 1.7). Disclosed treatment leads to desirable magnetic properties, e.g., in Cu-Ni-Fe, Cu-Ni-Co, Fe-Al-Ni, Fe-Al-Ni-Co, and Fe-Cr-Co alloys. For example, in the case of Fe-Cr-Co, alloy properties such as remanence-to-saturation squareness ratio in excess of 0.90 and maximum energy product in the range of 0.6-8.0 MGOe are achieved.Disclosed magnetic alloys are suitable for use in the manufacture of telephone ringers, relays, and electromagnetic transducers.
摘要翻译：公开了具有在没有磁场的情况下通过热机械处理产生的各向异性磁性结构的磁性合金。公开的处理要求通过从合金处于主要单相状态的第一温度到合金处于多相状态的第二温度以受控的方式冷却这种合金来开发合金中的磁性颗粒。处理进一步要求使合金变形，导致截面面积减少至少30％（对应于磁性颗粒的伸长率至少为1.7）。公开的处理导致期望的磁性，例如在Cu-Ni-Fe，Cu-Ni-Co，Fe-Al-Ni，Fe-Al-Ni-Co和Fe-Cr-Co合金中。例如，在Fe-Cr-Co的情况下，实现了剩余饱和矩形度比超过0.90，最大能量积在0.6〜8.0MOOe范围内的合金性能。公开的磁性合金适用于制造电话铃声，继电器和电磁换能器。

74. 发明授权

US3331712A Method of making magnetic material 失效
标题翻译：制造磁性材料的方法
公开(公告)号：US3331712A
公开(公告)日：1967-07-18
申请号：US35474264
申请日：1964-03-25
申请人： ALLEGHENY LUDLUM STEEL
发明人： GRIEST JR ANDREW J , REEN ORVILLE W
IPC分类号： H01F1/08
CPC分类号： H01F1/08 , Y10S75/956

75. 发明申请

US20180114622A1 Sintered Body for Forming Rare-earth Permanent Magnet and Rotary Electric Machine having Rare-earth Permanent Magnet 审中-公开
公开(公告)号：US20180114622A1
公开(公告)日：2018-04-26
申请号：US15560814
申请日：2016-03-24
申请人： NITTO DENKO CORPORATION
发明人： Makoto FUJIHARA , Kenichi FUJIKAWA , Shoichiro SAITO
IPC分类号： H01F7/02 , H02K1/27 , H02K15/03
CPC分类号： H01F7/0247 , H01F1/053 , H01F1/0577 , H01F1/08 , H01F7/02 , H01F41/0273 , H01F41/028 , H02K1/22 , H02K1/27 , H02K15/03
摘要： This invention provides for a rotary electric machine that includes a rotor having a plurality of permanent magnets arranged in the circumferential direction, and in which the leakage of magnetic flux can be suppressed with a simple structure; and a rare-earth permanent magnet-forming sintered compact for forming rare-earth permanent magnets to be used in said rotary electric machine.

76. 发明申请

US20180047488A1 RARE EARTH PERMANENT MAGNET AND PRODUCTION METHOD OF RARE EARTH PERMANENT MAGNET 审中-公开
公开(公告)号：US20180047488A1
公开(公告)日：2018-02-15
申请号：US15797841
申请日：2017-10-30
申请人： IHI CORPORATION
发明人： Hidekazu TOMONO , Haruki EGUCHI , Natsuki YONEYAMA , Isao NAKANOWATARI , Keisuke NAGAO , Hiroo TAKAHASHI
IPC分类号： H01F1/057 , B22F9/04 , H01F41/02 , B22F3/16 , B22F3/24 , C22C30/02 , B22F9/24
CPC分类号： H01F1/0577 , B22F1/00 , B22F3/00 , B22F3/16 , B22F3/24 , B22F9/04 , B22F9/24 , B22F2003/248 , B22F2009/043 , B22F2202/05 , B22F2301/355 , C22C30/02 , C22C38/00 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/16 , C22C2202/02 , H01F1/057 , H01F1/08 , H01F41/02 , H01F41/0266
摘要： A rare earth permanent magnet comprising a main phase containing: one or more elements R selected from a group consisting of Nd and Pr; one or more elements L selected from a group consisting of Co, Be, Li, Al and Si; one or more elements A selected from a group consisting of Tb, Sm, Gd, Ho and Er; Fe; and B, wherein crystals forming the main phase belong to P42/mnm, and some B atoms occupying a 4f site are substituted by atoms of the elements L.

77. 发明申请

US20180025841A1 APPLIED MAGNETIC FIELD SYNTHESIS AND PROCESSING OF IRON NITRIDE MAGNETIC MATERIALS 审中-公开
公开(公告)号：US20180025841A1
公开(公告)日：2018-01-25
申请号：US15546407
申请日：2015-07-22
申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA
发明人： Jian-Ping WANG , YanFeng JIANG
IPC分类号： H01F41/02 , H02K1/02 , H01F1/06 , H01F1/047
CPC分类号： H01F41/0273 , B22D27/02 , C22C38/001 , H01F1/047 , H01F1/06 , H01F1/08 , H01F41/0266 , H02K1/02
摘要： Techniques are disclosed concerning applied magnetic field synthesis and processing of iron nitride magnetic materials. Some methods concern casting a material including iron in the presence of an applied magnetic field to form a workpiece including at least one ironbased phase domain including uniaxial magnetic anisotropy, wherein the applied magnetic field has a strength of at least about 0.01 Tesla (T). Also disclosed are workpieces made by such methods, apparatus for making such workpieces and bulk materials made by such methods.

78. 发明申请

US20170263379A1 PRODUCTION METHOD FOR R-T-B SINTERED MAGNET 审中-公开
公开(公告)号：US20170263379A1
公开(公告)日：2017-09-14
申请号：US15509529
申请日：2015-09-08
申请人： HITACHI METALS, LTD.
发明人： Shuji MINO
IPC分类号： H01F41/02 , B22F3/24 , B22F7/00 , B22F7/02 , B22F9/08 , H01F1/057 , C22C38/10 , C22C38/06 , C22C38/00 , C22C28/00 , C22F1/16 , C21D6/00 , B22F3/10 , C22C38/16
CPC分类号： H01F41/0266 , B22F1/0059 , B22F3/1017 , B22F3/24 , B22F7/008 , B22F7/02 , B22F9/082 , B22F2003/248 , B22F2202/01 , B22F2202/05 , B22F2301/35 , B22F2301/45 , B22F2302/25 , B22F2302/45 , B22F2998/10 , B22F2999/00 , C21D6/007 , C22C1/0416 , C22C1/0425 , C22C1/0433 , C22C28/00 , C22C38/00 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , C22C2202/02 , C22F1/16 , H01F1/057 , H01F1/0577 , H01F1/08 , H01F41/02 , B22F1/0011 , B22F3/26 , B22F5/00 , B22F3/02 , B22F3/10 , C22C1/0441
摘要： A step of, while a powder of an RLM alloy (where RL is Nd and/or Pr; M is one or more elements selected from among Cu, Fe, Ga, Co, Ni and Al) which is produced through atomization and a powder of an RH compound (where RH is Dy and/or Tb) are present on the surface of a sintered R-T-B based magnet, performing a heat treatment at a sintering temperature of the sintered R-T-B based magnet or lower is included. The RLM alloy contains RL in an amount of 65 at % or more, and the melting point of the RLM alloy is equal to or less than the temperature of the heat treatment. The heat treatment is performed while the RLM alloy powder and the RH compound powder are present on the surface of the sintered R-T-B based magnet at a mass ratio of RLM alloy:RH compound=9.6:0.4 to 5:5.

79. 发明申请

US20160307697A1 Magnet Manufacturing Method And Magnet 审中-公开
标题翻译：磁铁制造方法和磁铁
公开(公告)号：US20160307697A1
公开(公告)日：2016-10-20
申请号：US15094373
申请日：2016-04-08
申请人： JTEKT CORPORATION
发明人： Takumi MIO , Koji NISHI , Yusuke KIMOTO , Takashi TAMURA
IPC分类号： H01F41/02 , H01F1/053 , B22F5/00 , B22F1/00 , B22F3/16 , H01F1/08 , C22C38/00
CPC分类号： H01F41/0266 , B22F1/0062 , B22F3/16 , B22F5/00 , B22F2301/355 , B22F2302/20 , B22F2998/10 , C22C38/001 , C22C38/005 , H01F1/053 , H01F1/059 , H01F1/06 , H01F1/08
摘要： A magnet manufacturing method has a step of preparing mixed powder of magnetic powder of a hard magnetic material, which includes one or more of an Fe—N-based compound and an R—Fe—N-based compound and a lubricant that allows formation of an adsorption film on a surface of the magnetic powder, a step of heating the mixed powder at a temperature that is equal to or higher than a melting point of the lubricant and that is lower than a decomposition temperature of the magnetic powder to form the adsorption film of the lubricant on the surface of the magnetic powder, a step of pressurizing and molding the magnetic powder in order to obtain a primary molding, and a step of heating the primary molding at a temperature that is lower than the decomposition temperature of the magnetic powder.
摘要翻译：磁铁制造方法具有制备硬磁性材料的磁性粉末的混合粉末的步骤，其包括Fe-N基化合物和R-Fe-N基化合物中的一种或多种，以及允许形成磁性粉末表面上的吸附膜，在等于或高于润滑剂的熔点并低于磁粉的分解温度的温度下加热混合粉末以形成吸附的步骤磁性粉末表面上的润滑剂膜，为了获得一次成型而对磁性粉末进行加压和成形的步骤，以及在低于磁性体的分解温度的温度下加热第一成型体的步骤粉末。

80. 发明申请

US20160307696A1 MAGNET MANUFACTURING METHOD AND MAGNET 审中-公开
标题翻译：磁铁制造方法和磁铁
公开(公告)号：US20160307696A1
公开(公告)日：2016-10-20
申请号：US15094228
申请日：2016-04-08
申请人： JTEKT CORPORATION
发明人： Takumi MIO , Koji NISHI , Yusuke KIMOTO , Takashi TAMURA
IPC分类号： H01F41/02 , H01F7/02 , B22F3/16 , B22F5/00 , C22C38/00 , B22F1/00
CPC分类号： H01F41/0266 , B22F1/0059 , B22F3/16 , B22F5/00 , B22F2301/355 , B22F2302/20 , C22C38/001 , C22C38/005 , H01F1/059 , H01F1/06 , H01F1/08 , H01F7/021
摘要： A magnet manufacturing method has preparing magnetic powder of a hard magnetic material, which includes one or more of an Fe-N-based compound and an R-Fe-N-based compound, pressurizing and molding the magnetic powder at a pressure equal to or higher than a fracture pressure at which particles of the magnetic powder are destroyed in order to obtain a primary molding, and heating the primary molding at a temperature lower than a decomposition temperature of the magnetic powder. A particle size distribution measured for the magnetic powder indicates that, for the magnetic powder, a ratio of a particle size with a cumulative frequency of 50% to a particle size with a cumulative frequency of 3% is less than eight.
摘要翻译：磁铁制造方法具有制备硬磁性材料的磁性粉末，其包括Fe-N基化合物和R-Fe-N基化合物中的一种或多种，在等于或等于或等于高于磁粉的粒子被破坏以获得一次成型的断裂压力，并且在低于磁粉的分解温度的温度下加热该一次成型体。对于磁性粉末测定的粒度分布表示，对于磁性粉末，累积频率为50％的粒径与累积频率为3％的粒径的比例小于8。

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