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1. 发明授权

US08414984B2 Powder for magnetic core, method for manufacturing powder for magnetic core, and dust core 有权
标题翻译：用于磁芯的粉末，用于制造磁芯的粉末的方法和粉尘芯
公开(公告)号：US08414984B2
公开(公告)日：2013-04-09
申请号：US12742507
申请日：2008-11-11
申请人： Eisuke Hoshina , Toshiya Yamaguchi , Yusuke Oishi , Tomoyasu Kitano , Kazuhiro Kawashima , Junghwan Hwang
发明人： Eisuke Hoshina , Toshiya Yamaguchi , Yusuke Oishi , Tomoyasu Kitano , Kazuhiro Kawashima , Junghwan Hwang
IPC分类号： B05D5/00
CPC分类号： C23C10/46 , B22F1/025 , B22F2998/00 , H01F1/24 , H01F41/0246 , Y10T428/2991 , B22F1/02
摘要： A method for manufacturing a powder for a magnetic core including at least a process of performing a siliconizing treatment on a surface of an iron powder containing elemental carbon. In the process of siliconizing treatment, a powder containing at least a silicon dioxide is brought into contact with the surface of the iron powder, elemental silicon is detached from the silicon dioxide by heating the powder of silicon dioxide, and the siliconizing treatment is performed by causing the detached elemental silicon to permeate and diffuse into a surface layer of the iron powder. The invention provides a method for manufacturing a powder for a magnetic core, by which loss reduction is achieved.
摘要翻译：一种制造用于磁芯的粉末的方法，至少包括在含有碳素的铁粉的表面上进行硅化处理的方法。在硅化处理的过程中，使至少含有二氧化硅的粉末与铁粉的表面接触，通过加热二氧化硅粉末将元素硅与二氧化硅分离，硅化处理由导致分离的元素硅渗透并扩散到铁粉的表面层中。本发明提供一种用于制造磁芯用粉末的方法，由此实现损耗降低。

2. 发明授权

US08337638B2 Powder for dust core and method for producing the same 有权
标题翻译：粉芯粉及其制造方法
公开(公告)号：US08337638B2
公开(公告)日：2012-12-25
申请号：US12988286
申请日：2009-04-17
申请人： Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Kazuhiro Kawashima
发明人： Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Kazuhiro Kawashima
IPC分类号： H01F1/147 , H01F1/20
CPC分类号： H01F1/24 , B22F1/0085 , B22F1/02 , B22F2999/00 , C22C38/02 , C22C2202/02 , H01F1/33 , B22F2207/01
摘要： A powder for a dust core comprising a silicon-containing layer formed within a depth of less than 0.15 D from the surface of the surface layer of a soft magnetic metal powder having a particle diameter D and a method for producing the same are provided. The method for producing a powder for a dust core 10 comprising a silicon-containing layer 2 comprises performing silicon impregnation of the surface of a soft magnetic metal powder (particle) 1 containing a carbon element, wherein: silicon impregnation is performed by bringing a powder for silicon impregnation containing at least a silicon compound into contact with the surface of a soft magnetic metal powder 1, heating the powder for silicon impregnation to dissociate a silicon element from the silicon compound, and then diffusing the thus dissociated silicon element throughout the surface layer of the soft magnetic metal powder via impregnation; and silicon impregnation is performed under a diffusion atmosphere allowing dissociation where the reaction rate at which the silicon element is dissociated is higher than the diffusion rate at which the silicon element is diffused throughout the surface layer of the soft magnetic metal powder via impregnation.
摘要翻译：提供了一种粉尘芯，其包括从具有粒径D的软磁性金属粉末的表面的表面的小于0.15D的深度形成的含硅层及其制造方法。包含含硅层2的粉尘芯10的粉末的制造方法包括对包含碳元素的软磁性金属粉末（颗粒）1的表面进行硅浸渍，其中：通过使粉末对于含有至少硅化合物的硅浸渍与软磁性金属粉末1的表面接触，加热硅浸渍用粉末以从硅化合物解离硅元素，然后使由此解离的硅元素扩散到整个表面层的软磁金属粉末通过浸渍; 并且在扩散气氛下进行硅浸渍，该扩散气氛允许解离，其中硅元素解离的反应速率高于硅元素通过浸渍遍及软磁性金属粉末的表面层扩散的扩散速率。

3. 发明申请

US20100271158A1 POWDER FOR MAGNETIC CORE, METHOD FOR MANUFACTURING POWDER FOR MAGNETIC CORE, AND DUST CORE 有权
标题翻译：磁芯用粉末，用于制造磁芯用粉末的方法和粉芯
公开(公告)号：US20100271158A1
公开(公告)日：2010-10-28
申请号：US12742507
申请日：2008-11-11
申请人： Eisuke Hoshina , Toshiya Yamaguchi , Yusuke Oishi , Tomoyasu Kitano , Kazuhiro Kawashima , Junghwan Hwang
发明人： Eisuke Hoshina , Toshiya Yamaguchi , Yusuke Oishi , Tomoyasu Kitano , Kazuhiro Kawashima , Junghwan Hwang
IPC分类号： H01F3/08 , B05D5/00 , B32B15/02
CPC分类号： C23C10/46 , B22F1/025 , B22F2998/00 , H01F1/24 , H01F41/0246 , Y10T428/2991 , B22F1/02
摘要： A method for manufacturing a powder for a magnetic core including at least a process of performing a siliconizing treatment on a surface of an iron powder containing elemental carbon. In the process of siliconizing treatment, a powder containing at least a silicon dioxide is brought into contact with the surface of the iron powder, elemental silicon is detached from the silicon dioxide by heating the powder of silicon dioxide, and the siliconizing treatment is performed by causing the detached elemental silicon to permeate and diffuse into a surface layer of the iron powder. The invention provides a method for manufacturing a powder for a magnetic core, by which loss reduction is achieved.
摘要翻译：一种制造用于磁芯的粉末的方法，至少包括在含有碳素的铁粉的表面上进行硅化处理的方法。在硅化处理的过程中，使至少含有二氧化硅的粉末与铁粉的表面接触，通过加热二氧化硅粉末将元素硅与二氧化硅分离，硅化处理由导致分离的元素硅渗透并扩散到铁粉的表面层中。本发明提供一种用于制造磁芯用粉末的方法，由此实现损耗降低。

4. 发明申请

US20110024000A1 POWDER FOR DUST CORE AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：粉剂用粉末及其制造方法
公开(公告)号：US20110024000A1
公开(公告)日：2011-02-03
申请号：US12988286
申请日：2009-04-17
申请人： Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Kazuhiro Kawashima
发明人： Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Kazuhiro Kawashima
IPC分类号： H01F1/06 , H01F1/00
CPC分类号： H01F1/24 , B22F1/0085 , B22F1/02 , B22F2999/00 , C22C38/02 , C22C2202/02 , H01F1/33 , B22F2207/01
摘要： A powder for a dust core comprising a silicon-containing layer formed within a depth of less than 0.15 D from the surface of the surface layer of a soft magnetic metal powder having a particle diameter D and a method for producing the same are provided.The method for producing a powder for a dust core 10 comprising a silicon-containing layer 2 comprises performing silicon impregnation of the surface of a soft magnetic metal powder (particle) 1 containing a carbon element, wherein: silicon impregnation is performed by bringing a powder for silicon impregnation containing at least a silicon compound into contact with the surface of a soft magnetic metal powder 1, heating the powder for silicon impregnation to dissociate a silicon element from the silicon compound, and then diffusing the thus dissociated silicon element throughout the surface layer of the soft magnetic metal powder via impregnation; and silicon impregnation is performed under a diffusion atmosphere allowing dissociation where the reaction rate at which the silicon element is dissociated is higher than the diffusion rate at which the silicon element is diffused throughout the surface layer of the soft magnetic metal powder via impregnation.
摘要翻译：提供了一种粉尘芯，其包括从具有粒径D的软磁性金属粉末的表面的表面的小于0.15D的深度形成的含硅层及其制造方法。包含含硅层2的粉尘芯10的粉末的制造方法包括对包含碳元素的软磁性金属粉末（颗粒）1的表面进行硅浸渍，其中：通过使粉末对于含有至少硅化合物的硅浸渍与软磁性金属粉末1的表面接触，加热硅浸渍用粉末以从硅化合物解离硅元素，然后使由此解离的硅元素扩散到整个表面层的软磁金属粉末通过浸渍; 并且在扩散气氛下进行硅浸渍，该扩散气氛允许解离，其中硅元素解离的反应速率高于硅元素通过浸渍遍及软磁性金属粉末的表面层扩散的扩散速率。

5. 发明申请

US20100079015A1 DUST CORE, METHOD FOR PRODUCING THE SAME, ELECTRIC MOTOR, AND REACTOR 审中-公开
标题翻译：粉芯，其制造方法，电动机和反应器
公开(公告)号：US20100079015A1
公开(公告)日：2010-04-01
申请号：US12532759
申请日：2008-04-18
申请人： Eisuke Hoshina , Toshiya Yamaguchi , Yusuke Oishi , Junghwan Hwang , Kazuhiro Kawashima
发明人： Eisuke Hoshina , Toshiya Yamaguchi , Yusuke Oishi , Junghwan Hwang , Kazuhiro Kawashima
IPC分类号： H01F1/28 , B29C70/00 , H02K15/12 , H01F27/255
CPC分类号： H01F41/0246 , B22F2003/248 , B22F2998/10 , C22C2202/02 , H01F1/26 , H01F3/08 , H01F2017/048 , H02K1/02 , B22F1/02 , B22F1/0059 , B22F3/02 , B22F3/24
摘要： According to the present invention, a dust core having excellent insulating properties, high strength, and high density (high magnetic flux density), a method for producing the same, and an electric motor or reactor having a core member composed of the dust core are provided. Therefore, a method for producing a dust core is provided, such method comprising the following steps: a 1st step of preparing a resin powder 2 and a magnetic powder 1 comprising soft magnetic metal powder (pure iron powder 11) particles each having an insulating film (silica film 12) preliminarily formed on the surface thereof; a 2nd step of obtaining a powder mixture by mixing the magnetic powder 1 and the resin powder 2; and a 3rd step of allowing the resin powder 2 to gel in an atmosphere at a certain temperature, press-molding the powder mixture so as to obtain a press molded body 10, and annealing the press molded body 10 so as to produce a dust core 20.
摘要翻译：根据本发明，具有优异的绝缘性，高强度，高密度（高磁通密度）的防尘芯及其制造方法以及具有由防尘芯构成的芯构件的电动马达或电抗器，提供。因此，提供了制造防尘芯的方法，该方法包括以下步骤：制备树脂粉末2的第一步骤和包含具有绝缘膜的软磁性金属粉末（纯铁粉末11）颗粒的磁性粉末1 （二氧化硅膜12），其表面上预先形成通过混合磁性粉末1和树脂粉末2得到粉末混合物的第二步骤; 以及使树脂粉末2在一定温度的气氛中凝胶化的第3工序，对粉末混合物进行加压成形，得到加压成形体10，对加压成形体10进行退火，制成压粉芯 20。

6. 发明申请

US20100239879A1 IRON POWDER FOR DUST CORES 有权
标题翻译：铁粉铁粉
公开(公告)号：US20100239879A1
公开(公告)日：2010-09-23
申请号：US12733699
申请日：2008-12-11
申请人： Takashi Kawano , Noriko Makiishi , Tatsuhiko Hiratani , Naomichi Nakamura , Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Daisuke Okamoto , Takeshi Hattori
发明人： Takashi Kawano , Noriko Makiishi , Tatsuhiko Hiratani , Naomichi Nakamura , Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Daisuke Okamoto , Takeshi Hattori
IPC分类号： B22F1/02 , B32B15/02
CPC分类号： H01F1/33 , B22F1/02 , B22F2998/00 , H01F1/24 , Y10T428/12181 , Y10T428/2991 , Y10T428/2993 , B22F2301/35 , B22F2302/256
摘要： Since a surface of an iron powder is covered with an oxide film composed of a Si-based oxide in which the ratio of Si to Fe satisfies Si/Fe≧0.8 on an atomic number basis, an iron powder for dust cores is provided which can be formed into a dust core having a high resistivity and hence having a low iron loss without degrading the mechanical strength.
摘要翻译：由于铁粉的表面被由Si与Fe的比例以Si /Fe≥0.8为基准的Si系氧化物构成的氧化膜覆盖，因此提供了一种用于防尘芯的铁粉，形成具有高电阻率并因此具有低铁损而不降低机械强度的防尘芯。

7. 发明授权

US08916268B2 Iron powder for dust cores 有权
标题翻译：防尘芯铁粉
公开(公告)号：US08916268B2
公开(公告)日：2014-12-23
申请号：US12733699
申请日：2008-12-11
申请人： Takashi Kawano , Noriko Makiishi , Tatsuhiko Hiratani , Naomichi Nakamura , Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Daisuke Okamoto , Takeshi Hattori
发明人： Takashi Kawano , Noriko Makiishi , Tatsuhiko Hiratani , Naomichi Nakamura , Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Daisuke Okamoto , Takeshi Hattori
IPC分类号： B22F1/02 , B32B15/02 , H01F1/33 , H01F1/24
CPC分类号： H01F1/33 , B22F1/02 , B22F2998/00 , H01F1/24 , Y10T428/12181 , Y10T428/2991 , Y10T428/2993 , B22F2301/35 , B22F2302/256
摘要： An iron powder for dust cores is provided which can be formed into a dust core having a high resistivity and having a low iron loss without degrading the mechanical strength. The iron powder for dust cores includes an iron powder and an oxide film on the surface thereof, wherein the oxide film is composed of a Si-based oxide in which the ratio of Si to Fe satisfies Si/Fe≧0.8 on an atomic number basis.
摘要翻译：提供了用于防尘芯的铁粉，其可以形成为具有高电阻率并具有低铁损的防尘芯，而不降低机械强度。用于防尘芯的铁粉在其表面上包括铁粉和氧化物膜，其中氧化物膜由其中Si与Fe的比率以原子数为基准满足Si /Fe≥0.8的Si基氧化物。

8. 发明申请

US20120012777A1 POWDER FOR DUST CORE, DUST CORE MADE OF THE POWDER FOR DUST CORE BY POWDER COMPACTION, AND METHOD OF PRODUCING THE POWDER FOR DUT CORE 审中-公开
标题翻译：用于粉末粉末的粉末粉末，用于通过粉末压实的粉末的粉末制成的粉末，以及用于制备用于核心的粉末的方法
公开(公告)号：US20120012777A1
公开(公告)日：2012-01-19
申请号：US13258753
申请日：2010-09-21
申请人： Masaki Sugiyama , Toshiya Yamaguchi , Shota Ohira , Takeshi Hattori , Yusuke Oishi
发明人： Masaki Sugiyama , Toshiya Yamaguchi , Shota Ohira , Takeshi Hattori , Yusuke Oishi
IPC分类号： H01F1/26 , H01F41/02 , H01F1/22
CPC分类号： B22F1/02 , B22F1/0062 , H01F1/24 , H01F1/33 , H01F41/0246
摘要： A powder for dust core including a soft magnetic metal powder and a silicon impregnated layer made of silicon concentrated in a surface layer of the soft magnetic metal powder, in which a silicon dioxide powder is diffusion-bonded to a surface of the silicon impregnated layer to form a diffusion-bonded part while a part of the silicon dioxide powder is impregnated and diffused in the silicon impregnated layer and the other part of the same protrudes from the surface of the silicon impregnated layer. The diffusion-bonded part creates a gap with respect to another powder for dust core, thereby providing increased specific resistance.
摘要翻译：一种用于防尘芯的粉末，包括软磁金属粉末和由硅组成的硅浸渍层，所述硅集中在软磁金属粉末的表面层中，其中二氧化硅粉末被扩散粘结到硅浸渍层的表面上形成扩散接合部分，同时一部分二氧化硅粉末浸渍并扩散到硅浸渍层中，并且其中另一部分从硅浸渍层的表面突出。扩散接合部分相对于粉尘芯的另一个粉末产生间隙，从而提供更高的电阻率。

9. 发明授权

US09159489B2 Method of producing powder magnetic core and method of producing magnetic core powder 有权
标题翻译：制造粉末磁芯的方法及制造磁芯粉的方法
公开(公告)号：US09159489B2
公开(公告)日：2015-10-13
申请号：US13811489
申请日：2011-07-20
申请人： Junghwan Hwang , Takeshi Hattori , Masaki Hirano , Masaki Sugiyama , Yusuke Oishi , Daisuke Okamoto , Hidenari Yamamoto
发明人： Junghwan Hwang , Takeshi Hattori , Masaki Hirano , Masaki Sugiyama , Yusuke Oishi , Daisuke Okamoto , Hidenari Yamamoto
IPC分类号： H01F41/02 , H01F27/255 , B22F1/00 , H01F1/26
CPC分类号： H01F41/0246 , B22F1/0077 , C22C2202/02 , H01F1/26 , H01F27/255 , H01F41/0266
摘要： The invention includes: powder preparation step of obtaining magnetic core powders by mixing, of magnetic powders with thermosetting resin powders in hot state; powder filling step of filling the obtained magnetic core powders into a die; a compaction step of compacting magnetic core powders; and compact heating step of heating, compacts to the elevated temperature state at which the thermosetting resin hardens after compaction.
摘要翻译：本发明包括：粉末制备步骤，通过混合热磁性粉末热磁性粉末获得磁芯粉末; 粉末填充步骤，将获得的磁芯粉末填充到模具中; 压制磁芯粉末的压实步骤; 并且加热的紧凑加热步骤压实成在压实后热固性树脂硬化的高温状态。

10. 发明授权

US08966225B2 Reducing number of processing units generating calculation result when communication time to another node takes longer than calculation time 有权
标题翻译：当到另一个节点的通信时间长于计算时间时，减少产生计算结果的处理单元的数量
公开(公告)号：US08966225B2
公开(公告)日：2015-02-24
申请号：US13343782
申请日：2012-01-05
申请人： Yusuke Oishi
发明人： Yusuke Oishi
IPC分类号： G06F15/80 , G06F9/50 , G06F9/54
CPC分类号： G06F9/5066 , G06F9/5044 , G06F9/54
摘要： A management unit causes a plurality of processing units to execute a calculation process. A determining unit determines whether a communication time for a communication process of exchanging a calculation result obtained from the calculation process is longer than a calculation time for the calculation process, the communication process being executed between a first computational node including the processor and a second computational node being a different computational node from the first computational node. A control unit limits number of processing units when the determining unit has determined that the communication time is longer than the calculation time.
摘要翻译：管理单元使多个处理单元执行计算处理。确定单元确定用于交换从计算处理获得的计算结果的通信处理的通信时间是否长于用于计算处理的计算时间，该通信处理在包括处理器的第一计算节点和第二计算节点是与第一计算节点不同的计算节点。当确定单元确定通信时间长于计算时间时，控制单元限制处理单元的数量。

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