公开(公告)号：US20070169851A1

公开(公告)日：2007-07-26

申请号：US10587893

申请日：2005-01-26

申请人： Hirokazu Kugai ,  Naoto Igarashi ,  Toru Maeda ,  Kazuhiro Hirose ,  Haruhisa Toyoda ,  Koji Mimura ,  Takao Nishioka

发明人： Hirokazu Kugai ,  Naoto Igarashi ,  Toru Maeda ,  Kazuhiro Hirose ,  Haruhisa Toyoda ,  Koji Mimura ,  Takao Nishioka

IPC分类号： H01F1/24

CPC分类号： B22F1/02 ,  B22F1/0088 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/24 ,  H01F1/33 ,  H01F3/08 ,  B22F9/082 ,  B22F1/0085 ,  B22F2201/013 ,  B22F2201/11

摘要： An object of the present invention is to provide a soft magnetic material exhibiting excellent magnetic characteristics regardless of the frequency to be applied and a dust core produced from the soft magnetic material. The means for solving the invention is a soft magnetic material that comprises metal magnetic particles 10 containing iron and oxygen. The ratio of oxygen contained in metal magnetic particles 10 is more than 0 and less than 0.05% by mass. A dust core produced using such a soft magnetic material has a coercive force of 2.0×102 A/m or less.

摘要翻译： 本发明的目的是提供一种软磁性材料，而不管所施加的频率如何，并且由软磁性材料制成的压粉芯是显示出优异的磁特性的。 解决本发明的方法是包含含有铁和氧的金属磁性颗粒10的软磁性材料。 金属磁性粒子10中所含的氧的比例大于0且小于0.05质量％。 使用这种软磁性材料制成的防尘芯的矫顽力为2.0×10 2 A / m以下。

公开(公告)号：US20080231409A1

公开(公告)日：2008-09-25

申请号：US10597197

申请日：2005-01-28

申请人： Hirokazu Kugai ,  Naoto Igarashi ,  Toru Maeda ,  Kazuhiro Hirose ,  Haruhisa Toyoda ,  Koji Mimura ,  Takao Nishioka

发明人： Hirokazu Kugai ,  Naoto Igarashi ,  Toru Maeda ,  Kazuhiro Hirose ,  Haruhisa Toyoda ,  Koji Mimura ,  Takao Nishioka

IPC分类号： H01F27/255 ,  H01F1/24 ,  H01F41/02

CPC分类号： H01F3/08 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246 ,  Y10T29/4902 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995 ,  Y10T428/2996

摘要： The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles.The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm

摘要翻译： 本发明的目的是提供一种粉末芯及其制造方法，其具有耐热性优异的绝缘涂层，该涂层可以适当地限制颗粒之间的涡流的流动。 粉末芯配备有彼此结合的多个复合磁性颗粒。 所述多个复合磁性颗粒中的每一个包括：金属磁性颗粒10; 围绕所述金属磁性颗粒10的表面10a的绝缘性下层涂层20; 围绕所述下层涂层20并含有硅的上层涂层30; 和含有金属氧化物化合物的分散颗粒50，并设置在所述下层涂层20和/或上层涂层30中。分散颗粒50的平均粒径R满足条件10nm

公开(公告)号：US07682695B2

公开(公告)日：2010-03-23

申请号：US10597197

申请日：2005-01-28

申请人： Hirokazu Kugai ,  Naoto Igarashi ,  Toru Maeda ,  Kazuhiro Hirose ,  Haruhisa Toyoda ,  Koji Mimura ,  Takao Nishioka

发明人： Hirokazu Kugai ,  Naoto Igarashi ,  Toru Maeda ,  Kazuhiro Hirose ,  Haruhisa Toyoda ,  Koji Mimura ,  Takao Nishioka

IPC分类号： B32B5/16 ,  B29C67/04

CPC分类号： H01F3/08 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246 ,  Y10T29/4902 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995 ,  Y10T428/2996

摘要： The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles.The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm

摘要翻译： 本发明的目的是提供一种粉末芯及其制造方法，其具有耐热性优异的绝缘涂层，该涂层可以适当地限制颗粒之间的涡流的流动。 粉末芯配备有彼此结合的多个复合磁性颗粒。 所述多个复合磁性颗粒中的每一个包括：金属磁性颗粒10; 围绕所述金属磁性颗粒10的表面10a的绝缘性下层涂层20; 围绕所述下层涂层20并含有硅的上层涂层30; 和含有金属氧化物化合物的分散颗粒50，并且设置在所述下层涂层20和/或上层涂层30中。分散颗粒50的平均粒径R满足条件10nm

公开(公告)号：US07998361B2

公开(公告)日：2011-08-16

申请号：US10599003

申请日：2005-03-29

申请人： Kazuhiro Hirose ,  Haruhisa Toyoda ,  Takao Nishioka ,  Naoto Igarashi ,  Toru Maeda ,  Yoshiyuki Shimada

发明人： Kazuhiro Hirose ,  Haruhisa Toyoda ,  Takao Nishioka ,  Naoto Igarashi ,  Toru Maeda ,  Yoshiyuki Shimada

IPC分类号： C04B35/00 ,  C09D5/23 ,  H01F1/00 ,  C01G49/08 ,  C04B35/26 ,  C04B35/64

CPC分类号： B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246 ,  B22F3/02 ,  B22F3/24

摘要： A soft magnetic material includes: a plurality of composite magnetic particles formed from a metal magnetic particle and an insulative coating surrounding a surface of the metal magnetic particle and containing metallic salt phosphate and/or oxide; and a lubricant formed as fine particles added at a proportion of at least 0.001 percent by mass and no more than 0.1 percent by mass relative to the plurality of composite magnetic particles. With this structure, superior lubrication is provided during compacting and desired magnetic characteristics can be obtained after compacting.

摘要翻译： 软磁性材料包括：多个由金属磁性颗粒形成的复合磁性颗粒和围绕金属磁性颗粒的表面的包含金属盐磷酸盐和/或氧化物的绝缘涂层; 以及相对于多个复合磁性粒子以比例为0.001质量％以上0.1质量％以下的微粒子形成的润滑剂。 利用这种结构，在压实过程中提供了优异的润滑，并且在压实后可获得所需的磁特性。

公开(公告)号：US20070194267A1

公开(公告)日：2007-08-23

申请号：US10599003

申请日：2005-03-29

申请人： Kazuhiro Hirose ,  Haruhisa Toyoda ,  Takao Nishioka ,  Naoto Igarashi ,  Toru Maeda ,  Yoshiyuki Shimada

发明人： Kazuhiro Hirose ,  Haruhisa Toyoda ,  Takao Nishioka ,  Naoto Igarashi ,  Toru Maeda ,  Yoshiyuki Shimada

IPC分类号： H01F1/14

CPC分类号： B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246 ,  B22F3/02 ,  B22F3/24

摘要： A soft magnetic material includes: a plurality of composite magnetic particles formed from a metal magnetic particle and an insulative coating surrounding a surface of the metal magnetic particle and containing metallic salt phosphate and/or oxide; and a lubricant formed as fine particles added at a proportion of at least 0.001 percent by mass and no more than 0.1 percent by mass relative to the plurality of composite magnetic particles. With this structure, superior lubrication is provided during compacting and desired magnetic characteristics can be obtained after compacting.

摘要翻译： 软磁性材料包括：多个由金属磁性颗粒形成的复合磁性颗粒和围绕金属磁性颗粒的表面的包含金属盐磷酸盐和/或氧化物的绝缘涂层; 以及相对于多个复合磁性粒子以比例为0.001质量％以上0.1质量％以下的微粒子形成的润滑剂。 利用这种结构，在压实过程中提供了优异的润滑，并且在压实后可获得所需的磁特性。

公开(公告)号：US07767034B2

公开(公告)日：2010-08-03

申请号：US11629976

申请日：2005-09-29

申请人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

发明人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

IPC分类号： H01F1/20 ,  H01F1/24 ,  B32B5/00

CPC分类号： B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2991 ,  B22F3/02 ,  B22F3/24

摘要： A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

摘要翻译： 软磁性材料是包括具有主要由Fe构成的金属磁性粒子（10）和覆盖金属磁性粒子（10）的绝缘涂层（20）的复合磁性体（30）和绝缘涂层（20）的软磁性材料， 含有磷酸铁化合物和磷酸铝化合物。 包含在与金属磁性颗粒（10）接触的绝缘涂层（20）的接触表面中的Fe的原子比大于绝缘涂层（20）表面中所含的Fe的原子比。 绝缘涂层（20）与金属磁性颗粒（10）接触的接触表面中所含的Al的原子比小于绝缘涂层（20）表面中的Al的原子比。 因此，可以减少铁损。

公开(公告)号：US08323725B2

公开(公告)日：2012-12-04

申请号：US12816833

申请日：2010-06-16

申请人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

发明人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

IPC分类号： H01F1/20

CPC分类号： B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2991 ,  B22F3/02 ,  B22F3/24

摘要： A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

摘要翻译： 软磁性材料是包括具有主要由Fe构成的金属磁性粒子（10）和覆盖金属磁性粒子（10）的绝缘涂层（20）的复合磁性体（30）和绝缘涂层（20）的软磁性材料， 含有磷酸铁化合物和磷酸铝化合物。 包含在与金属磁性颗粒（10）接触的绝缘涂层（20）的接触表面中的Fe的原子比大于绝缘涂层（20）表面中所含的Fe的原子比。 绝缘涂层（20）与金属磁性颗粒（10）接触的接触表面中所含的Al的原子比小于绝缘涂层（20）表面中的Al的原子比。 因此，可以减少铁损。

公开(公告)号：US20070235109A1

公开(公告)日：2007-10-11

申请号：US11629976

申请日：2005-09-29

申请人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

发明人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

IPC分类号： B22F1/02 ,  H01F1/00

CPC分类号： B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2991 ,  B22F3/02 ,  B22F3/24

摘要： A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

摘要翻译： 软磁性材料是包括具有主要由Fe构成的金属磁性粒子（10）和覆盖金属磁性粒子（10）的绝缘涂层（20）的复合磁性体（30）和绝缘涂层（20）的软磁性材料， 含有磷酸铁化合物和磷酸铝化合物。 包含在与金属磁性颗粒（10）接触的绝缘涂层（20）的接触表面中的Fe的原子比大于绝缘涂层（20）表面中所含的Fe的原子比。 绝缘涂层（20）与金属磁性颗粒（10）接触的接触表面中所含的Al的原子比小于绝缘涂层（20）表面中的Al的原子比。 因此，可以减少铁损。

公开(公告)号：US20050257854A1

公开(公告)日：2005-11-24

申请号：US11127970

申请日：2005-05-11

申请人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Koji Mimura

发明人： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Koji Mimura

IPC分类号： B22F1/00 ,  B22F1/02 ,  B22F3/00 ,  B22F3/02 ,  B22F3/24 ,  H01F1/24 ,  H01F1/33 ,  H01F41/02 ,  H01F1/22

CPC分类号： H01F1/24 ,  H01F41/0246

摘要： The object of the present invention is to provide a method for manufacturing a soft magnetic material, a soft magnetic material, a method for manufacturing a P/M soft magnetic material, and a P/M soft magnetic material which achieve the desired magnetic properties. In the method for manufacturing the soft magnetic material of the present invention, there is a first heat treatment step (step S3) in which a metal magnetic particle 10, which has iron as its main component, is heat treated to a temperature of 900 degrees C. or greater and less than the melting point of metal magnetic particle 10. After the first heat treatment step (step S3), there is a step for forming a plurality of composite magnetic particles 30 which are metal magnetic particles 10 surrounded by an insulation covering 20 (step S6).

摘要翻译： 本发明的目的是提供一种制造软磁性材料的方法，软磁性材料，制造P / M软磁性材料的方法和实现所需磁性的P / M软磁性材料。 在本发明的软磁性材料的制造方法中，存在以铁为主要成分的金属磁性体10被热处理至900℃的第一热处理工序（步骤S3） ℃以上且小于金属磁性颗粒10的熔点。 在第一热处理步骤（步骤S 3）之后，存在形成由绝缘覆盖物20包围的金属磁性颗粒10的多个复合磁性颗粒30的步骤（步骤S6）。

公开(公告)号：US07674342B2

公开(公告)日：2010-03-09

申请号：US10594961

申请日：2005-03-29

申请人： Toru Maeda ,  Naoto Igarashi ,  Kazuhiro Hirose ,  Haruhisa Toyoda

发明人： Toru Maeda ,  Naoto Igarashi ,  Kazuhiro Hirose ,  Haruhisa Toyoda

IPC分类号： H01F1/14

CPC分类号： C22C33/02 ,  B22F1/0088 ,  B22F2003/248 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  B22F9/082 ,  B22F1/0085 ,  B22F1/02 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/24

摘要： A method of producing a soft magnetic material includes the steps of preparing soft magnetic powder containing a plurality of soft magnetic particles etching the soft magnetic powder to remove surfaces of the soft magnetic particles and, after the etching step, heat-treating the soft magnetic powder in a finely divided state at a temperature of not less than 400° C. and not more than 900° C. By this method configured as above, desired magnetic characteristics can be obtained.

摘要翻译： 一种制造软磁性材料的方法包括以下步骤：制备含有多个软磁性颗粒的软磁性粉末，该软磁性粉末蚀刻软磁性粉末以去除软磁性颗粒的表面，并且在蚀刻步骤之后，对软磁性粉末进行热处理 在不低于400℃且不高于900℃的温度下处于细分状态。通过如上构造的方法，可以获得期望的磁特性。