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1. 发明授权

US08177921B2 R-Fe-B rare earth sintered magnet 有权
标题翻译： R-Fe-B稀土烧结磁体
公开(公告)号：US08177921B2
公开(公告)日：2012-05-15
申请号：US12670718
申请日：2008-07-25
申请人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki , Shinichiro Sakashita
发明人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki , Shinichiro Sakashita
IPC分类号： H01F1/057
CPC分类号： C21D6/00 , B22F2003/248 , B22F2998/10 , C22C33/0278 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F9/023 , B22F9/04 , B22F3/02 , B22F3/10 , B22F3/24
摘要： An R—Fe—B based rare-earth sintered magnet according to the present invention includes, as a main phase, crystal grains of an R2Fe14B type compound that includes Nd, which is a light rare-earth element, as a major rare-earth element R. The magnet includes a heavy rare-earth element RH (which is at least one of Dy and Tb) that has been introduced through the surface of the sintered magnet by diffusion. The magnet has a region in which the concentration of the heavy rare-earth element RH in a grain boundary R-rich phase is lower than at the surface of the crystal grains of the R2Fe14B type compound but higher than at the core of the crystal grains of the R2Fe14B type compound.
摘要翻译：本发明的R-Fe-B系稀土类烧结磁体作为主相，含有作为主稀土元素的作为轻稀土元素的Nd的R2Fe14B型化合物的晶粒元素R.磁体包括通过扩散通过烧结磁体的表面引入的重稀土元素RH（其是Dy和Tb中的至少一种）。磁体具有这样的区域，其中富R晶相中的重稀土元素RH的浓度比R2Fe14B型化合物的晶粒表面低，但高于晶粒的核心的R2Fe14B型化合物。

2. 发明申请

US20110012699A1 R-Fe-B RARE EARTH SINTERED MAGNET 有权
标题翻译： R-Fe-B稀土烧结磁铁
公开(公告)号：US20110012699A1
公开(公告)日：2011-01-20
申请号：US12670718
申请日：2008-07-25
申请人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki , Shinichiro Sakashita
发明人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki , Shinichiro Sakashita
IPC分类号： H01F7/02
CPC分类号： C21D6/00 , B22F2003/248 , B22F2998/10 , C22C33/0278 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F9/023 , B22F9/04 , B22F3/02 , B22F3/10 , B22F3/24
摘要： An R—Fe—B based rare-earth sintered magnet according to the present invention includes, as a main phase, crystal grains of an R2Fe14B type compound that includes Nd, which is a light rare-earth element, as a major rare-earth element R. The magnet includes a heavy rare-earth element RH (which is at least one of Dy and Tb) that has been introduced through the surface of the sintered magnet by diffusion. The magnet has a region in which the concentration of the heavy rare-earth element RH in a grain boundary R-rich phase is lower than at the surface of the crystal grains of the R2Fe14B type compound but higher than at the core of the crystal grains of the R2Fe14B type compound.
摘要翻译：本发明的R-Fe-B系稀土类烧结磁体作为主相，含有作为主稀土元素的作为轻稀土元素的Nd的R2Fe14B型化合物的晶粒元素R.磁体包括通过扩散通过烧结磁体的表面引入的重稀土元素RH（其是Dy和Tb中的至少一种）。磁体具有这样的区域，其中富R晶相中的重稀土元素RH的浓度比R2Fe14B型化合物的晶粒表面低，但高于晶粒的核心的R2Fe14B型化合物。

3. 发明授权

US08177922B2 R-Fe-B anisotropic sintered magnet 有权
标题翻译： R-Fe-B各向异性烧结磁体
公开(公告)号：US08177922B2
公开(公告)日：2012-05-15
申请号：US12671915
申请日：2008-09-02
申请人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki
发明人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , B22F2999/00 , C22C33/0257 , C22C38/005 , C22C2202/02 , H01F41/0293 , B22F2207/01
摘要： An R—Fe—B based anisotropic sintered magnet according to the present invention has, as a main phase, an R2Fe14B type compound that includes a light rare-earth element RL (which is at least one of Nd and Pr) as a major rare-earth element R, and also has a heavy rare-earth element RH (which is at least one element selected from the group consisting of Dy and Tb). In the crystal lattice of the main phase, the c-axis is oriented in a predetermined direction. The magnet includes a portion in which at least two peaks of diffraction are observed within a 2θ range of 60.5 degrees to 61.5 degrees when an X-ray diffraction measurement is carried out using a CuK α ray on a plane that is located at a depth of 500 μm or less under a pole face of the magnet and that is parallel to the pole face.
摘要翻译：本发明的R-Fe-B系各向异性烧结磁体作为主相，具有稀土元素RL（Nd和Pr中的至少一种）作为主要稀有元素的R2Fe14B型化合物 - 地基元素R，并且还具有重稀土元素RH（其是选自Dy和Tb中的至少一种元素）。在主相的晶格中，c轴沿预定方向取向。磁体包括在2θ范围内观察到至少两个衍射峰的部分; 在使用CuKα射线进行X射线衍射测定的情况下，在位于磁铁的极面的500μm以下的平面的平面上并且平行于极的X射线衍射测定的范围为60.5〜61.5度面对。

4. 发明申请

US20110205006A1 R-Fe-B ANISOTROPIC SINTERED MAGNET 有权
标题翻译： R-Fe-B异相烧结磁体
公开(公告)号：US20110205006A1
公开(公告)日：2011-08-25
申请号：US12671915
申请日：2008-09-02
申请人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki
发明人： Tomoori Odaka , Hideyuki Morimoto , Kohshi Yoshimura , Shigeru Takaki
IPC分类号： H01F1/053 , H01F7/02
CPC分类号： H01F1/0577 , B22F2999/00 , C22C33/0257 , C22C38/005 , C22C2202/02 , H01F41/0293 , B22F2207/01
摘要： An R—Fe—B based anisotropic sintered magnet according to the present invention has, as a main phase, an R2Fe14B type compound that includes a light rare-earth element RL (which is at least one of Nd and Pr) as a major rare-earth element R, and also has a heavy rare-earth element RH (which is at least one element selected from the group consisting of Dy and Tb). In the crystal lattice of the main phase, the c-axis is oriented in a predetermined direction. The magnet includes a portion in which at least two peaks of diffraction are observed within a 2θ range of 60.5 degrees to 61.5 degrees when an X-ray diffraction measurement is carried out using a CuK α ray on a plane that is located at a depth of 500 μm or less under a pole face of the magnet and that is parallel to the pole face.
摘要翻译：本发明的R-Fe-B系各向异性烧结磁体作为主相，具有稀土元素RL（Nd和Pr中的至少一种）作为主要稀有元素的R2Fe14B型化合物 - 地基元素R，并且还具有重稀土元素RH（其是选自Dy和Tb中的至少一种元素）。在主相的晶格中，c轴沿预定方向取向。磁体包括在2θ范围内观察至少两个衍射峰的部分; 在使用CuKα射线进行X射线衍射测定的情况下，在位于磁铁的极面的500μm以下的平面的平面上并且平行于极的X射线衍射测定的范围为60.5〜61.5度面对。

5. 发明授权

US07449100B2 Method for forming electroplating film on surfaces of articles 有权
标题翻译：在物品表面形成电镀膜的方法
公开(公告)号：US07449100B2
公开(公告)日：2008-11-11
申请号：US10467349
申请日：2002-10-25
申请人： Kohshi Yoshimura , Fumiaki Kikui
发明人： Kohshi Yoshimura , Fumiaki Kikui
IPC分类号： C23C28/02
CPC分类号： C25D5/54 , C23C18/54 , H01F1/0578 , H01F41/026 , H01F41/26
摘要： An object of the present invention is to provide a method for forming a uniform and dense electroplating film with high adhesion strength on the surface of an article, yet irrespective of the surface material and the surface properties of the article. A means for a solution of the problem comprises: forming on the surface of the article, a resin coating made of a resin containing dispersed therein a powder of a first metal; then forming a second-metal substituted plating film on the surface of the resin coating by immersing the resin-coated article in a solution containing ions of a second metal having an ionization potential nobler than that of the first metal; and further forming an electroplating film of a third metal on the surface of the metal-substituted plating film.
摘要翻译：本发明的目的是提供一种用于在物品表面上形成具有高粘合强度的均匀且致密的电镀膜的方法，而不管制品的表面材料和表面性质如何。用于解决问题的方法包括：在物品的表面上形成由包含分散有第一金属的粉末的树脂制成的树脂涂层; 然后在树脂涂层的表面上形成第二金属取代的镀膜，将树脂被覆制品浸入含有比第一金属的离子化电位更高的第二金属离子的溶液中; 并且在金属取代的电镀膜的表面上进一步形成第三金属的电镀膜。

6. 发明授权

US07053745B2 Rare earth metal-based permanent magnet, and process for producing the same 有权
公开(公告)号：US07053745B2
公开(公告)日：2006-05-30
申请号：US10068970
申请日：2002-02-11
申请人： Kohshi Yoshimura , Takeshi Nishiuchi , Fumiaki Kikui
发明人： Kohshi Yoshimura , Takeshi Nishiuchi , Fumiaki Kikui
IPC分类号： H01F7/02
CPC分类号： H01F41/026
摘要： A rare earth metal-based permanent magnet has a film layer formed substantially of only a fine metal powder on a metal forming the surface of the magnet. The rare earth metal-based permanent magnet having the film layer on its surface is produced in the following manner: A rare earth metal-based permanent magnet and a fine metal powder forming material are placed into a treating vessel, where both of them are vibrated and/or agitated, whereby a film layer made of a fine metal powder produced from the fine metal powder producing material is formed on a metal forming the surface of the magnet. Thus, the formation of a corrosion-resistant film such as plated film can be achieved at a high thickness accuracy by forming an electrically conductive layer uniformly and firmly on the entire surface of the magnet without use of a third component such as a resin and a coupling agent.

7. 发明授权

US06800967B2 Integrated magnet body and motor incorporating it 有权
标题翻译：集成磁体和电机并入
公开(公告)号：US06800967B2
公开(公告)日：2004-10-05
申请号：US10296251
申请日：2002-12-09
申请人： Kazuhide Oshima , Kohshi Yoshimura
发明人： Kazuhide Oshima , Kohshi Yoshimura
IPC分类号： H02K4100
CPC分类号： H02K1/276
摘要： The integrated magnet body according to the invention is an integrated magnet body formed by laminating and securing a plurality of pieces of magnet through an insulating film between pieces of magnet, characterized in that the insulating film has a film thickness of 0.01 &mgr;m or more, and a ratio of a total sum of the thickness of the insulating films to an overall length in the laminating direction of the integrated magnet body is in a range of from 0.0005 to 3%. The integrated magnet body according to the invention is excellent in insulating property and effective volume ratio and thus can attain high efficiency of a motor by installing the integrated magnet body in the motor.
摘要翻译：根据本发明的集成磁体是通过绝缘膜在多个磁体之间层叠并固定多个磁体而形成的集成磁体，其特征在于，所述绝缘膜的膜厚为0.01μm以上，绝缘膜的厚度的总和与整体磁体的层叠方向的总长度的比率在0.0005〜3％的范围内。根据本发明的集成磁体具有优异的绝缘性能和有效体积比，从而通过将集成磁体安装在电动机中可以实现电动机的高效率。

8. 发明授权

US06355313B1 Process for surface treatment of hollow work having hole communicating with outside 有权
标题翻译：具有与外部连通的孔的中空工件的表面处理工艺
公开(公告)号：US06355313B1
公开(公告)日：2002-03-12
申请号：US09512655
申请日：2000-02-24
申请人： Kohshi Yoshimura , Takeshi Nishiuchi , Fumiaki Kikui
发明人： Kohshi Yoshimura , Takeshi Nishiuchi , Fumiaki Kikui
IPC分类号： B29C3508
CPC分类号： H01F41/026 , C23C10/02 , C23C10/34 , Y10T428/12063 , Y10T428/12465
摘要： A hollow work having a hole communicating with the outside and a fine metal powder producing material are placed into a treating vessel, where the fine metal powder producing material is brought into flowing contact with the surface of the work, thereby adhering a fine metal powder produced from the fine metal powder producing material to the surface of the work. The hollow work may be a ring-shaped bonded magnet. Thus, a film having an excellent corrosion resistance can be formed without use of a third component such as a resin and a coupling agent by providing an electric conductivity to the entire surface of the magnet, i.e., not only to the outer surface (including end faces) but also to the inner surface of the magnet and subjecting the magnet to an electroplating treatment.
摘要翻译：将具有与外部连通的孔的中空工件和精细的金属粉末生成材料放置在处理容器中，使金属粉末生成材料与工件的表面流动接触，从而粘附生产的细金属粉末从精细的金属粉末生产材料到工作的表面。中空的工件可以是环形粘结磁体。因此，通过向磁体的整个表面提供导电性，即不仅可以形成具有优异耐腐蚀性的膜，而且不需要使用诸如树脂和偶联剂的第三组分，面），而且还与磁体的内表面并对磁体进行电镀处理。

9. 发明授权

US06281774B1 Corrosion-resistant permanent magnet and method for producing the same 有权
标题翻译：耐腐蚀永磁体及其制造方法
公开(公告)号：US06281774B1
公开(公告)日：2001-08-28
申请号：US09554013
申请日：2000-05-09
申请人： Takeshi Nishiuchi , Kohshi Yoshimura , Fumiaki Kikui
发明人： Takeshi Nishiuchi , Kohshi Yoshimura , Fumiaki Kikui
IPC分类号： H01F702
CPC分类号： H01F41/026 , Y10S428/90 , Y10T428/256 , Y10T428/265
摘要： The present invention provides an Fe—B—R based permanent magnet, which has a chemical conversion coating film formed on its surface with an aluminum film interposed therebetween, the chemical conversion coating film containing at least one of titanium and zirconium, phosphorus, oxygen and fluorine as constituting elements, and a process for producing such an Fe—B—R based permanent magnet. In the permanent magnet, the chemical conversion coating film is adhered firmly to the magnet with the aluminum film interposed therebetween and hence, the magnet is excellent in corrosion resistance. Even if the magnet is left to stand for a long time under high-temperature and high-humidity conditions of a temperature of 80° C. and a relative humidity of 90%, the magnet exhibits a stable high magnetic characteristic which cannot deteriorate. Moreover, the film is free from hexa-valent chromium.
摘要翻译：本发明提供一种Fe-BR系永久磁铁，其特征在于，具有在其表面形成有铝膜的化学转化膜，所述化学转化膜含有钛，锆，磷，氧，氟中的至少一种，作为构成元素，以及这种Fe-BR类永久磁铁的制造方法。在永久磁铁中，化学转化膜与铝磁性膜牢固地粘附在磁铁上，因此，磁铁的耐腐蚀性优异。即使磁铁在温度80℃，相对湿度90％的高温高湿条件下长时间放置，磁铁表现出稳定的高磁特性，不会劣化。此外，该膜不含六价铬。

10. 发明授权

US06251196B1 Process for producing Fe-B-R based permanent magnet having a corrosion-resistant film 有权
标题翻译：具有耐腐蚀膜的Fe-B-R系永久磁铁的制造方法
公开(公告)号：US06251196B1
公开(公告)日：2001-06-26
申请号：US09383274
申请日：1999-08-26
申请人： Takeshi Nishiuchi , Kohshi Yoshimura , Fumiaki Kikui
发明人： Takeshi Nishiuchi , Kohshi Yoshimura , Fumiaki Kikui
IPC分类号： C23C880
CPC分类号： H01F41/026 , Y10T428/12465 , Y10T428/12611
摘要： An Fe—B—R based permanent magnet and metal pieces are placed into a treating vessel, where they are vibrated and/or agitated, whereby a metal film is formed on the surface of the magnet. A sol solution produced by the hydrolytic reaction and the polymerizing reaction of a metal compound which is a starting material for a metal oxide film is applied to the metal film and subjected to a heat treatment to form a metal oxide film. Therefore, it is possible to form, on the surface of the magnet, a corrosion-resistant film which can be produced easily and at a low cost without carrying-out of a plating treatment or a treatment using hexa-valent chromium and which has an excellent adhesion to the surface of the magnet and can exhibit a stable high magnetic characteristic which cannot be degraded even if the magnet is left to stand for a long period of time under high-temperature and high-humidity conditions of a temperature of 80° C. and a relative humidity of 90%. Thus, it is possible to provide an Fe—B—R based permanent magnet having an excellent corrosion resistance.
摘要翻译：将Fe-B-R基永磁体和金属片放置在处理容器中，在其中它们被振动和/或搅动，由此在磁体的表面上形成金属膜。将作为金属氧化物膜的原料的金属化合物的水解反应和聚合反应产生的溶胶溶液施加到金属膜上，进行热处理，形成金属氧化物膜。因此，可以在磁体的表面形成耐腐蚀性膜，其可以容易且低成本地生产，而不会进行电镀处理或使用六价铬的处理，并且具有对磁体表面的附着力优异，能够呈现稳定的高磁特性，即使在80℃以上的高温高湿条件下长时间放置磁体也不会降低相对湿度为90％。因此，可以提供耐腐蚀性优异的Fe-B-R系永久磁铁。

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