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1. 发明授权

US08328954B2 Method of manufacturing permanent magnet 有权
标题翻译：永久磁铁制造方法
公开(公告)号：US08328954B2
公开(公告)日：2012-12-11
申请号：US12745933
申请日：2008-12-25
申请人： Hiroshi Nagata , Yoshinori Shingaki
发明人： Hiroshi Nagata , Yoshinori Shingaki
IPC分类号： H01F1/04
CPC分类号： H01F41/0273 , B22F3/02 , B22F2998/10 , B22F2999/00 , B30B11/027 , H01F1/0577 , B22F9/08 , B22F9/023 , B22F2009/044 , B22F3/093 , B22F3/087 , B22F3/1025 , B22F2003/023 , B22F2003/033
摘要： Crystal fractured surfaces of raw meal powder having more equal crystal orientation relationship in the magnetic field are arranged to be assembled together so that a method of manufacturing a permanent magnet which has an extremely high degree of orientation can be provided. In this invention, raw meal powder (P) is filled into a cavity, the raw meal powder (P) is oriented in the magnetic field while being pressed or urged by pressing means that has a smaller area than the cross-sectional area of the cavity. Semi-finished product thus oriented is compression-molded into a predetermined shape in the magnetic field.
摘要翻译：布置具有在磁场中具有相同的晶体取向关系的生粉粉末的晶体断面，从而组装在一起，从而可以提供具有极高取向度的永久磁铁的制造方法。在本发明中，将生粉粉末（P）填充到空腔中，生粉食品粉末（P）在磁场中取向，同时被挤压或推压的面积小于腔。如此定向的半成品在磁场中被压缩成预定的形状。

2. 发明申请

US20110189498A1 EVAPORATING MATERIAL AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：蒸发材料及其制造方法
公开(公告)号：US20110189498A1
公开(公告)日：2011-08-04
申请号：US13119993
申请日：2009-10-06
申请人： Hiroshi Nagata , Yoshinori Shingaki , Youichi Hirose , Kyoutoshi Miyagi
发明人： Hiroshi Nagata , Yoshinori Shingaki , Youichi Hirose , Kyoutoshi Miyagi
IPC分类号： C25D1/08 , B22D23/04 , B22D29/00
CPC分类号： B22D23/04 , C21D1/72 , C21D6/00 , C23C2/04 , H01F41/0293 , Y10T428/12361
摘要： There is provided an evaporating material of thin plate shape which can be manufactured at a reduced cost and at high productivity, the evaporating material being adapted for use in enhancing the coercive force of neodymium-iron-boron sintered magnet by heat treatment while evaporating Dy in vacuum or in reduced-pressure inert gas atmosphere. The evaporating material of this invention has a core member la made of a fire-resistant metal having a multiplicity of through holes, and is made by melting a rare-earth metal or an alloy thereof so as to get adhered to, and solidified on, the core member. In this case, the above-mentioned adhesion is performed by dipping the core member into a molten bath of the rare-earth metal or an alloy thereof, and pulling it out of the molten bath.
摘要翻译：提供了一种薄板状的蒸发材料，其可以以低成本和高生产率制造，该蒸发材料适用于通过热处理提高钕铁硼烧结磁体的矫顽力，同时将Dy 真空或在减压惰性气体气氛中。本发明的蒸发材料具有由具有多个通孔的耐火金属制成的芯部件1a，并且通过熔化稀土金属或其合金制成，以使其粘附并固化，核心成员。在这种情况下，通过将芯构件浸入稀土金属或其合金的熔池中并将其从熔浴中拉出来进行上述粘合。

3. 发明申请

US20110052799A1 METHOD OF RECYCLING SCRAP MAGNET 审中-公开
标题翻译：回收SCRAP磁铁的方法
公开(公告)号：US20110052799A1
公开(公告)日：2011-03-03
申请号：US12863338
申请日：2009-02-18
申请人： Hiroshi Nagata , Yoshinori Shingaki
发明人： Hiroshi Nagata , Yoshinori Shingaki
IPC分类号： B05D5/00
CPC分类号： C23C14/5806 , B22F3/24 , B22F8/00 , B22F9/04 , B22F2003/241 , B22F2003/248 , B22F2998/10 , C22C33/0278 , C22C2202/02 , C23C10/06 , C23C14/16 , H01F1/0577 , H01F41/0293 , Y02P10/24 , Y02W30/541 , B22F3/10
摘要： The method has the steps of: grinding a recovered scrap magnet which is an iron-boron-rare earth-based sintered magnet, thereby obtaining a scrap-derived recovered raw material powder; obtaining a sintered body from the scrap-derived recovered raw material powder by a powder metallurgy method; and processing the sintered body. The processing includes the steps of: heating the sintered body disposed in a processing chamber; evaporating a metal evaporating material containing at least one of Dy and Tb in which the metal evaporating material is disposed in the same or another processing chamber; adhering metal atoms evaporated in the evaporating step to a surface of the sintered body while controlling a supply amount of the evaporated metal atoms; and diffusing the adhered metal atoms into grain boundaries and/or grain boundary phases of the sintered body.
摘要翻译：该方法具有以下步骤：研磨作为铁 - 硼 - 稀土类烧结磁体的回收废铁，从而获得废料源的回收原料粉末; 通过粉末冶金法从废料回收的原料粉末中获得烧结体; 并加工烧结体。该处理包括以下步骤：加热设置在处理室中的烧结体; 蒸发含有其中金属蒸发材料设置在相同或另一处理室中的Dy和Tb中的至少一种的金属蒸发材料; 在蒸发的金属原子的供给量的同时控制在蒸发工序中蒸发的金属原子到烧结体的表面; 并将附着的金属原子扩散到烧结体的晶界和/或晶界相。

4. 发明申请

US20100310408A1 METHOD OF MANUFACTURING PERMANENT MAGNET 有权
标题翻译：制造永磁体的方法
公开(公告)号：US20100310408A1
公开(公告)日：2010-12-09
申请号：US12745933
申请日：2008-12-25
申请人： Hiroshi Nagata , Yoshinori Shingaki
发明人： Hiroshi Nagata , Yoshinori Shingaki
IPC分类号： B22F1/00 , B22F3/02 , B22F3/12
CPC分类号： H01F41/0273 , B22F3/02 , B22F2998/10 , B22F2999/00 , B30B11/027 , H01F1/0577 , B22F9/08 , B22F9/023 , B22F2009/044 , B22F3/093 , B22F3/087 , B22F3/1025 , B22F2003/023 , B22F2003/033
摘要： Crystal fractured surfaces of raw meal powder having more equal crystal orientation relationship in the magnetic field are arranged to be assembled together so that a method of manufacturing a permanent magnet which has an extremely high degree of orientation can be provided. In this invention, raw meal powder (P) is filled into a cavity, the raw meal powder (P) is oriented in the magnetic field while being pressed or urged by pressing means that has a smaller area than the cross-sectional area of the cavity. Semi-finished product thus oriented is compression-molded into a predetermined shape in the magnetic field.
摘要翻译：布置具有在磁场中具有相同的晶体取向关系的生粉粉末的晶体断面，从而组装在一起，从而可以提供具有极高取向度的永久磁铁的制造方法。在本发明中，将生粉粉末（P）填充到空腔中，生粉食品粉末（P）在磁场中取向，同时被挤压或推压的面积小于腔。如此定向的半成品在磁场中被压缩成预定的形状。

5. 发明授权

US08771422B2 Coating method and apparatus, a permanent magnet, and manufacturing method thereof 有权
标题翻译：涂布方法和装置，永久磁铁及其制造方法
公开(公告)号：US08771422B2
公开(公告)日：2014-07-08
申请号：US13163881
申请日：2011-06-20
申请人： Hiroshi Nagata , Yoshinori Shingaki
发明人： Hiroshi Nagata , Yoshinori Shingaki
IPC分类号： C23C16/00 , B05D5/12
CPC分类号： C23C14/16 , C23C14/243 , C23C14/541 , H01F1/0571 , H01F10/126 , H01F41/0293 , H01F41/20
摘要： The object of the present invention is to improve the productivity of a permanent magnet and to manufacture it at a low cost by effectively coating Dy and Tb on a surface of the magnet of Fe—B-rare earth elements having a predetermined configuration. The permanent magnet of the present invention is manufactured by a coating step for coating Dy on the surface of the magnet of Fe—B-rare earth elements having a predetermined configuration and a diffusing step for diffusing Dy coated on the surface of the magnet into crystal grain boundary phases of the magnet with being heat treated at a predetermined temperature. In this case, the coating step comprises a first step for heating a process chamber used for carrying out the coating step and generating metallic vapor atmosphere within the process chamber by vaporizing vaporizable metallic material previously arranged within the process chamber, and a second step for introducing into the process chamber the magnet held at a temperature lower than that within the process chamber and then selectively depositing the vaporizable metallic material on a surface of the magnet by an effect of temperature difference between the temperature within the process chamber and that of the magnet by the magnet reaches a predetermined temperature.
摘要翻译：本发明的目的是通过在具有预定构造的Fe-B-稀土元素的磁体的表面上有效地涂覆Dy和Tb来提高永磁体的生产率并以低成本制造。本发明的永磁体通过涂布步骤制造，该涂覆步骤用于在具有预定结构的Fe-B-稀土元素的磁体的表面上涂覆Dy，并将用于将涂覆在磁体表面上的Dy扩散到晶体的扩散步骤在预定温度下进行热处理的磁体的晶界相。在这种情况下，涂覆步骤包括：第一步骤，用于加热用于进行涂覆步骤的处理室，并通过蒸发预先设置在处理室内的可蒸发金属材料，在处理室内产生金属蒸汽气氛;以及第二步骤，用于引入进入处理室，磁体保持在低于处理室内的温度，然后通过处理室内的温度与磁体的温度之间的温度差的选择性地将可蒸发的金属材料沉积在磁体的表面上磁体达到预定温度。

6. 发明授权

US08375891B2 Vacuum vapor processing apparatus 有权
标题翻译：真空蒸气处理装置
公开(公告)号：US08375891B2
公开(公告)日：2013-02-19
申请号：US12440635
申请日：2007-09-10
申请人： Hiroshi Nagata , Kyuzo Nakamura , Takeo Katou , Atsushi Nakatsuka , Ichirou Mukae , Masami Itou , Ryou Yoshiizumi , Yoshinori Shingaki
发明人： Hiroshi Nagata , Kyuzo Nakamura , Takeo Katou , Atsushi Nakatsuka , Ichirou Mukae , Masami Itou , Ryou Yoshiizumi , Yoshinori Shingaki
IPC分类号： C23C16/448 , C23C16/455 , C23C16/458 , C23C16/46 , C23F1/00 , H01L21/306 , C23C16/06 , C23C16/22
CPC分类号： C23C14/24 , H01F41/0293
摘要： There is provided a vacuum evaporating apparatus which is suitable for performing a process in which a metal vapor atmosphere is formed in a processing chamber, the metal atoms in this metal vapor atmosphere are caused to be adhered to the surface of an object to be processed, and the metal atoms adhered to the surface of the object to be processed are diffused into grain boundary phases thereof. The apparatus comprises: a processing furnace (11); at least one processing box (4) disposed inside the processing furnace; and a heating means (2) provided inside the processing furnace so as to enclose the processing box. An evacuating means is provided which, after housing the processing box inside the processing furnace in a state in which the object to be processed (S) and the metal evaporating material (V) are disposed in the processing box, reduces the processing furnace and the processing box to a predetermined pressure and keep them at that pressure. The heating means is operated in the reduced pressure to evaporate the metal evaporating material while increasing the object to be processed to a predetermined temperature. The evaporated metal atoms are supplied to the surface of the object to be processed.
摘要翻译：提供了一种真空蒸发装置，其适于进行在处理室中形成金属蒸汽气氛的过程，使金属蒸气气氛中的金属原子粘附到待处理物体的表面，并且附着在待处理物体表面的金属原子扩散到其晶界相。该装置包括：加工炉（11）; 设置在处理炉内的至少一个处理箱（4）以及设置在处理炉内部以包围处理盒的加热装置（2）。本发明提供一种排气装置，其特征在于，处理炉内处理箱内处理箱体（S）和金属蒸发材料（V）的状态被设置在处理箱内时，将加工炉和处理箱到预定的压力并保持在该压力下。加热装置在减压下操作以蒸发金属蒸发材料，同时将待处理物体增加到预定温度。蒸发的金属原子被供应到待处理物体的表面。

7. 发明授权

US08262808B2 Permanent magnet and method of manufacturing same 有权
标题翻译：永磁体及其制造方法
公开(公告)号：US08262808B2
公开(公告)日：2012-09-11
申请号：US12519878
申请日：2007-12-19
申请人： Hiroshi Nagata , Kyuzo Nakamura , Takeo Katou , Atsushi Nakatsuka , Ichirou Mukae , Masami Itou , Ryou Yoshiizumi , Yoshinori Shingaki
发明人： Hiroshi Nagata , Kyuzo Nakamura , Takeo Katou , Atsushi Nakatsuka , Ichirou Mukae , Masami Itou , Ryou Yoshiizumi , Yoshinori Shingaki
IPC分类号： H01F1/057
CPC分类号： C22C33/0242 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C2202/02 , H01F41/0273 , H01F41/0293 , C22C33/0278 , B22F3/12 , B22F2201/40 , B22F2201/10 , B22F2201/20
摘要： There is provided a method of manufacturing a permanent magnet which has an extremely high coercive force and high magnetic properties is manufactured at high productivity. There are executed: a first step of causing at least one of Dy and Tb to adhere to at least part of a surface of iron-boron-rare-earth based sintered magnet; and a second step of diffusing, through heat-treatment at a predetermined temperature, at least one of Dy and Tb adhered to the surface of the sintered magnet into grain boundary phase of the sintered magnet. As the sintered magnet, there is used one which is manufactured by: mixing each powder of principal phase alloy (constituted primarily by R2T14B phase, where R is at least one rare earth element primarily including Nd and where T is a transition metal primarily including Fe), and a liquid phase alloy (having a higher content of R than R2T14B phase and primarily constituted by R-rich phase) in a predetermined mixing ratio; press-forming in magnetic field a mixed powder thus obtained; and sintering a press-formed body in vacuum or inert gas atmosphere.
摘要翻译：提供了一种制造具有极高矫顽力的永磁体的方法，并以高生产率制造高磁性。执行：使Dy和Tb中的至少一种附着在铁 - 硼 - 稀土类烧结磁体的表面的至少一部分上的第一步骤; 以及第二步骤，通过在预定温度下进行热处理，将附着在烧结磁体表面上的Dy和Tb中的至少一种扩散到烧结磁体的晶界相。作为烧结磁体，使用以下制造方法：将主相合金粉末（主要由R2T14B相构成，其中R为主要包含Nd的至少一种稀土元素，其中T为主要包含Fe的过渡金属））和预定混合比的液相合金（R含量比R2T14B相高，主要由富R相构成）; 在磁场中成形如此得到的混合粉末; 并在真空或惰性气体气氛中烧结压制成形体。

8. 发明授权

US08157926B2 Permanent magnet and method of manufacturing same 有权
标题翻译：永磁体及其制造方法
公开(公告)号：US08157926B2
公开(公告)日：2012-04-17
申请号：US12519891
申请日：2007-12-19
申请人： Hiroshi Nagata , Yoshinori Shingaki
发明人： Hiroshi Nagata , Yoshinori Shingaki
IPC分类号： H01F1/057
CPC分类号： C22C38/005 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/16 , H01F1/0577 , H01F41/0293
摘要： There is provided a method of manufacturing a permanent magnet in which Dy and/or Tb adhered to the surface of a sintered magnet containing a lubricant can be efficiently diffused and in which the permanent magnet having high magnetic properties can be manufactured at good productivity. The permanent magnet is manufactured by executing a first step of adhering at least one of Dy and Tb to at least a part of a surface of a sintered magnet made by sintering iron-boron-rare earth based alloy raw meal powder containing a lubricant; and a second step of heat-treating the sintered magnet at a predetermined temperature to thereby disperse at least one of Dy and Tb adhered to the surface of the sintered magnet into grain boundary phase of the sintered magnet. At this time, as the sintered magnet, there is used one manufactured in an average grain size within a range of 4 μm˜8 μm.
摘要翻译：提供了一种制造永磁体的方法，其中可以有效地扩散粘附到含有润滑剂的烧结磁体的表面上的Dy和/或Tb，并且可以以高生产率制造具有高磁性的永磁体。通过执行将Dy和Tb中的至少一种粘附到通过烧结含有润滑剂的含铁 - 硼 - 稀土类合金生粉粉末制成的烧结磁体的表面的至少一部分上的第一步骤来制造永磁体; 以及在预定温度下对烧结磁体进行热处理以将附着在烧结磁体表面上的Dy和Tb中的至少一种分散在烧结磁体的晶界相中的第二步骤。此时，作为烧结磁体，使用以4μm〜8μm的范围内的平均粒径制造的烧结磁体。

9. 发明授权

US08128760B2 Permanent magnet and method of manufacturing same 有权
标题翻译：永磁体及其制造方法
公开(公告)号：US08128760B2
公开(公告)日：2012-03-06
申请号：US12519884
申请日：2007-12-19
申请人： Hiroshi Nagata , Kyuzo Nakamura , Takeo Katou , Atsushi Nakatsuka , Ichirou Mukae , Masami Itou , Ryou Yoshiizumi , Yoshinori Shingaki
发明人： Hiroshi Nagata , Kyuzo Nakamura , Takeo Katou , Atsushi Nakatsuka , Ichirou Mukae , Masami Itou , Ryou Yoshiizumi , Yoshinori Shingaki
IPC分类号： H01F1/057
CPC分类号： H01F41/026 , H01F1/0577 , H01F7/02 , H01F41/0293
摘要： By eliminating the necessity of a prior step for cleaning a sintered magnet before adhering Dy and/or Tb to the surface of the sintered magnet S, the productivity of a permanent magnet having diffused Dy and/or Tb into grain boundary phase is improved. Iron-boron-rare earth based sintered magnet (S) disposed in a processing chamber (20) is heated to a predetermined temperature. An evaporating material (V) which is made of a hydride containing at least one of Dy and Tb is disposed in the same or in another processing chamber and is evaporated to cause the evaporated evaporating material to the surface of the sintered magnet. Metal atoms of Dy and/or Tb are diffused into grain boundary phase of the sintered magnet.
摘要翻译：通过消除在将Dy和/或Tb粘附到烧结磁体S的表面之前清洁烧结磁体的先前步骤的必要性，具有扩散的Dy和/或Tb的永磁体的生产率提高到晶界相。设置在处理室（20）中的铁 - 硼 - 稀土类烧结磁体（S）被加热到预定温度。将由含有Dy和Tb中的至少一种的氢化物制成的蒸发材料（V）设置在同一处理室中或在另一个处理室中，蒸发而使蒸发的蒸发材料到烧结磁体的表面。 Dy和/或Tb的金属原子扩散到烧结磁体的晶界相。

10. 发明申请

US20100159129A1 COATING METHOD AND APPARATUS, A PERMANENT MAGNET, AND MANUFACTURING METHOD THEREOF 有权
标题翻译：涂料方法和设备，永磁体及其制造方法
公开(公告)号：US20100159129A1
公开(公告)日：2010-06-24
申请号：US12710949
申请日：2010-02-23
申请人： Hiroshi Nagata , Yoshinori Shingaki
发明人： Hiroshi Nagata , Yoshinori Shingaki
IPC分类号： B05D3/02 , B05D5/00 , B05D7/14
CPC分类号： C23C14/16 , C23C14/243 , C23C14/541 , H01F1/0571 , H01F10/126 , H01F41/0293 , H01F41/20
摘要： The object of the present invention is to improve the productivity of a permanent magnet and to manufacture it at a low cost by effectively coating Dy and Tb on a surface of the magnet of Fe—B-rare earth elements having a predetermined configuration. The permanent magnet of the present invention is manufactured by a coating step for coating Dy on the surface of the magnet of Fe—B-rare earth elements having a predetermined configuration and a diffusing step for diffusing Dy coated on the surface of the magnet into crystal grain boundary phases of the magnet with being heat treated at a predetermined temperature. In this case, the coating step comprises a first step for heating a process chamber used for carrying out the coating step and generating metallic vapor atmosphere within the process chamber by vaporizing vaporizable metallic material previously arranged within the process chamber, and a second step for introducing into the process chamber the magnet held at a temperature lower than that within the process chamber and then selectively depositing the vaporizable metallic material on a surface of the magnet by an effect of temperature difference between the temperature within the process chamber and that of the magnet by the magnet reaches a predetermined temperature.
摘要翻译：本发明的目的是通过在具有预定构造的Fe-B-稀土元素的磁体的表面上有效地涂覆Dy和Tb来提高永磁体的生产率并以低成本制造。本发明的永磁体通过涂布步骤制造，该涂覆步骤用于在具有预定结构的Fe-B-稀土元素的磁体的表面上涂覆Dy，并将用于将涂覆在磁体表面上的Dy扩散到晶体的扩散步骤在预定温度下进行热处理的磁体的晶界相。在这种情况下，涂覆步骤包括：第一步骤，用于加热用于进行涂覆步骤的处理室，并通过蒸发预先设置在处理室内的可蒸发金属材料，在处理室内产生金属蒸汽气氛;以及第二步骤，用于引入进入处理室，磁体保持在低于处理室内的温度，然后通过处理室内的温度与磁体的温度之间的温度差的选择性地将可蒸发的金属材料沉积在磁体的表面上磁体达到预定温度。

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