公开(公告)号：US20080241513A1

公开(公告)日：2008-10-02

申请号：US12020941

申请日：2008-01-28

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： B32B5/16 ,  B05D5/00

CPC分类号： H01F1/0577 ,  H01F1/0009 ,  H01F41/0293 ,  Y10T428/256

摘要： A structure of a magnet wherein a magnet consisting of a magnetic body including iron and rare earths, a plurality of fluorine compound layers or oxyfluorine compound layers are formed interior of the magnetic body, and the fluorine compound layer or oxyfluorine compound layer has a major axis which is greater than the mean particle size of the crystal grains of the magnetic body.

摘要翻译： 在磁体的内部形成有由铁和稀土构成的磁体构成的磁体，多个氟化合物层或氧氟化合物层的结构，氟化合物层或氟氧化合物层的长轴 其大于磁体的晶粒的平均粒径。

公开(公告)号：US20120111232A1

公开(公告)日：2012-05-10

申请号：US13351350

申请日：2012-01-17

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： C09D7/12

CPC分类号： C23C22/02 ,  C23C18/00 ,  H01F1/0572 ,  H01F41/0293

摘要： A conventional method for forming an insulating film on a magnet has a difficulty in achieving sufficient improvement in magnetic characteristics due to nonuniformity of a coating film, and an extended time and higher temperature which are required in a thermal treatment. In order to solve the problems, the present invention provides a treating solution composed of an alcohol based solvent and a rare earth fluoride or alkaline earth metal fluoride dispersing in the solvent. In the treating solution, at least one X-ray diffraction peak has a half-value width larger than 1°. The present invention also provides a method for forming an insulating film using the treating solution.

摘要翻译： 在磁体上形成绝缘膜的常规方法难以实现由于涂膜的不均匀性而导致的磁特性的充分改善以及在热处理中所需的延长的时间和更高的温度。 为了解决上述问题，本发明提供了一种由醇系溶剂和分散在溶剂中的稀土氟化物或碱土金属氟化物构成的处理液。 在处理溶液中，至少一个X射线衍射峰的半值宽度大于1°。 本发明还提供了使用该处理溶液形成绝缘膜的方法。

公开(公告)号：US07815726B2

公开(公告)日：2010-10-19

申请号：US11862334

申请日：2007-09-27

申请人： Yuichi Satsu ,  Matahiro Komuro ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Yuichi Satsu ,  Matahiro Komuro ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： C09D1/00 ,  C01F17/00

CPC分类号： C23C22/02 ,  B22F1/02 ,  H01F41/026 ,  H01F41/0293

摘要： A fluoride coating film formed with a fluoride-containing solution wherein a rare earth fluoride or an alkaline earth metal fluoride, in particular, fluoride of Pr, Nd, Dy, Tb and Ho, is swollen in a solvent comprising a major amount of an alcohol, and the solution is a colloidal solution in which the rare earth fluoride or the alkaline earth metal fluoride is dispersed homogeneously in the solvent comprising a major amount of an alcohol improves magnetic properties of NdFeB rare earth magnets including not only sintered magnets but also bonded magnets.

摘要翻译： 用含氟化物溶液形成的氟化物涂膜，其中稀土氟化物或碱土金属氟化物，特别是Pr，Nd，Dy，Tb和Ho的氟化物在包含主要量的醇的溶剂中溶胀 该溶液是稀土氟化物或碱土金属氟化物均匀分散在包含大量醇的溶剂中的胶体溶液，改善了不仅包括烧结磁体而且包括粘结磁体的NdFeB稀土磁体的磁性能 。

公开(公告)号：US20120205573A1

公开(公告)日：2012-08-16

申请号：US13453634

申请日：2012-04-23

申请人： Matahiro KOMURO ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Matahiro KOMURO ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： H01F1/01

CPC分类号： H02K1/02 ,  H01F1/0577 ,  H01F41/0293 ,  H02K1/2766

摘要： An R—Fe—B sintered magnet has a structure including main phase crystal grains and a grain boundary area surrounding the crystal grains. The sintered magnet includes fluorine and a specified metal element selected from elements belonging to Group 2 through Group 16 of periodic table excepting the rare earth element, carbon and boron. The fluorine has a higher concentration in a region closer to a magnet surface than in the center. The specified element also has a higher concentration in the region closer to the surface. The sintered magnet includes oxyfluoride containing carbon, Dy and the metal element in a grain boundary area region at a distance of 1 μm or greater from the magnet surface, and the carbon has a higher concentration than the concentration of the metal element in a region at a distance of 1 μm to 500 μm from the magnet surface.

摘要翻译： R-Fe-B烧结磁体具有包括主相晶粒和围绕晶粒的晶界面的结构。 烧结磁体包括除了稀土元素，碳和硼之外的选自元素周期表第2族至第16族的元素中的氟和特定金属元素。 在比中心更靠近磁体表面的区域中，氟具有较高的浓度。 指定的元件在更靠近表面的区域中也具有较高的浓度。 烧结磁体包括在磁体表面上距离为1μm以上的晶界区域中含有碳，Dy和金属元素的氟化氢，并且碳的浓度高于金属元素的浓度 与磁体表面的距离为1μm至500μm。

公开(公告)号：US20100079024A1

公开(公告)日：2010-04-01

申请号：US12509817

申请日：2009-07-27

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： H02K21/12 ,  B05D5/00

CPC分类号： H02K1/02 ,  H01F1/0577 ,  H01F41/0293 ,  H02K1/2766

摘要： A rotating machine is equipped with a sintered magnet. The sintered magnet includes: a ferromagnetic material consisting mainly of iron; a layer of a fluoride compound or a layer of an oxyfluoride compound formed inside crystal grains or in a portion of grain boundary area of the ferromagnetic material; at least one element selected from the group consisting of alkalis, alkaline earth elements, and rare earth elements and carbon contained in the layer of the fluoride compound or the layer of the oxyfluoride compound; and a continuously extending layer formed by a portion of the layer of the fluoride compound or the layer of the oxyfluoride layer, the continuously extending layer extending from a surface of the ferromagnetic material through the inside of the ferromagnetic material to an opposite side surface of the ferromagnetic material. A ratio of an average concentration of fluorine in an area within 100 μm from the surface of the ferromagnetic material to an average concentration of fluorine in an area including a central part at a distance of at least 100 μm is in the range of 1±0.5, and a concentration gradient of the rare earth elements is present in a matrix near the grain boundary of the ferromagnetic material.

摘要翻译： 旋转机器配有烧结磁体。 烧结磁体包括：主要由铁组成的铁磁材料; 形成在晶粒内部或在铁磁材料的晶界区域内的氟化物化合物层或氟氧化物层; 选自碱金属，碱土金属元素和稀土元素中的至少一种元素和氟化物化合物层或氟氧化物化合物层中所含的碳; 以及由所述氟化物层的所述层的一部分或所述氟氧化物层的一部分形成的连续延伸层，所述连续延伸层从所述铁磁材料的表面延伸穿过所述铁磁材料的内部到所述铁磁材料的相对侧表面 铁磁材料。 在距离至少为100μm的中心部分的区域中，与铁磁材料表面相比在100μm以内的氟的平均浓度与氟的平均浓度之比在1±0.5的范围内 ，并且稀土元素的浓度梯度存在于铁磁材料的晶界附近的基质中。

公开(公告)号：US20080241368A1

公开(公告)日：2008-10-02

申请号：US12019870

申请日：2008-01-25

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： B05D5/12 ,  C09D5/00

CPC分类号： C23C22/02 ,  C23C18/00 ,  H01F1/0572 ,  H01F41/0293

摘要： A conventional method for forming an insulating film on a magnet has a difficulty in achieving sufficient improvement in magnetic characteristics due to nonuniformity of a coating film, and an extended time and higher temperature which are required in a thermal treatment. In order to solve the problems, the present invention provides a treating solution composed of an alcohol based solvent and a rare earth fluoride or alkaline earth metal fluoride dispersing in the solvent. In the treating solution, at least one X-ray diffraction peak has a half-value width larger than 1°. The present invention also provides a method for forming an insulating film using the treating solution.

摘要翻译： 在磁体上形成绝缘膜的常规方法难以实现由于涂膜的不均匀性而导致的磁特性的充分改善以及在热处理中所需的延长的时间和更高的温度。 为了解决上述问题，本发明提供了一种由醇系溶剂和分散在溶剂中的稀土氟化物或碱土金属氟化物构成的处理液。 在处理溶液中，至少一个X射线衍射峰的半值宽度大于1°。 本发明还提供了使用该处理溶液形成绝缘膜的方法。

公开(公告)号：US07862654B2

公开(公告)日：2011-01-04

申请号：US12849857

申请日：2010-08-04

申请人： Yuichi Satsu ,  Matahiro Komuro ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Yuichi Satsu ,  Matahiro Komuro ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： C09D1/00 ,  C01F17/00

CPC分类号： C23C22/02 ,  B22F1/02 ,  H01F41/026 ,  H01F41/0293

摘要： A fluoride coating film formed with a fluoride-containing solution wherein a rare earth fluoride or an alkaline earth metal fluoride, in particular, fluoride of Pr, Nd, Dy, Tb and Ho, is swollen in a solvent comprising a major amount of an alcohol, and the solution is a colloidal solution in which the rare earth fluoride or the alkaline earth metal fluoride is dispersed homogeneously in the solvent comprising a major amount of an alcohol improves magnetic properties of NdFeB rare earth magnets including not only sintered magnets but also bonded magnets.

摘要翻译： 用含氟化物溶液形成的氟化物涂膜，其中稀土氟化物或碱土金属氟化物，特别是Pr，Nd，Dy，Tb和Ho的氟化物在包含主要量的醇的溶剂中溶胀 该溶液是稀土氟化物或碱土金属氟化物均匀分散在包含大量醇的溶剂中的胶体溶液，改善了不仅包括烧结磁体而且包括粘结磁体的NdFeB稀土磁体的磁性能 。

公开(公告)号：US08350430B2

公开(公告)日：2013-01-08

申请号：US13453634

申请日：2012-04-23

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Yoshii Morishita ,  Shigeaki Funyu ,  Mitsuo Katayose

IPC分类号： H02K1/02 ,  H02K1/27 ,  H02K21/12

CPC分类号： H02K1/02 ,  H01F1/0577 ,  H01F41/0293 ,  H02K1/2766

摘要： An R—Fe—B sintered magnet has a structure including main phase crystal grains and a grain boundary area surrounding the crystal grains. The sintered magnet includes fluorine and a specified metal element selected from elements belonging to Group 2 through Group 16 of periodic table excepting the rare earth element, carbon and boron. The fluorine has a higher concentration in a region closer to a magnet surface than in the center. The specified element also has a higher concentration in the region closer to the surface. The sintered magnet includes oxyfluoride containing carbon, Dy and the metal element in a grain boundary area region at a distance of 1 μm or greater from the magnet surface, and the carbon has a higher concentration than the concentration of the metal element in a region at a distance of 1 μm to 500 μm from the magnet surface.

摘要翻译： R-Fe-B烧结磁体具有包括主相晶粒和围绕晶粒的晶界区域的结构。 烧结磁体包括除了稀土元素，碳和硼之外的选自元素周期表第2族至第16族的元素中的氟和特定金属元素。 在比中心更靠近磁体表面的区域中，氟具有较高的浓度。 指定的元件在更靠近表面的区域中也具有较高的浓度。 烧结磁体包括在磁体表面上距离为1μm以上的晶界区域中含有碳，Dy和金属元素的氟化氢，并且碳的浓度高于金属元素的浓度 与磁体表面的距离为1μm至500μm。

公开(公告)号：US08821649B2

公开(公告)日：2014-09-02

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： H01F1/00 ,  H01F1/058

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。

公开(公告)号：US08226779B2

公开(公告)日：2012-07-24

申请号：US12099800

申请日：2008-04-09

申请人： Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Hiroyuki Suzuki

发明人： Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Hiroyuki Suzuki

IPC分类号： H01F1/24

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0228 ,  C22C2202/02 ,  H01F41/0246 ,  B22F9/082 ,  B22F1/0085 ,  B22F3/02 ,  B22F3/24

摘要： A manufacturing method of a magnetic core includes a first step of applying a treatment liquid for forming an insulating film to iron powder; a second step of heat-treating the iron powder to which the treatment liquid has been applied, at a temperature higher than 350 degrees; a third step of compacting the heat-treated iron powder to form a magnetic core; and a forth step of heat-treating the magnetic core at a temperature ranging from 600 degrees to 800 degrees.

摘要翻译： 磁芯的制造方法包括：向铁粉施加用于形成绝缘膜的处理液的第1工序; 在高于350度的温度下对已经施加了处理液的铁粉进行热处理的第二步骤; 压制热处理铁粉以形成磁芯的第三步骤; 以及在600〜800度的温度下对磁芯进行热处理的第四工序。