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：US20100255188A1

公开(公告)日：2010-10-07

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： B05D5/12

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：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：US20090047519A1

公开(公告)日：2009-02-19

申请号：US12160079

申请日：2006-11-22

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

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

IPC分类号： B32B15/02 ,  B05D5/12

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/02 ,  H01F1/26 ,  H01F3/08 ,  H01F41/0246 ,  Y10T428/2991 ,  Y10T428/2998 ,  B22F1/007 ,  B22F3/02 ,  B22F3/10

摘要： The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4≦MAl/(MAl+MSi)≦0.9 and the relationship of 0.25≦(MAl+MSi)/MP≦1.0 in the case that molar amount of aluminum contained in the insulating film is represented by MAl, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (MAl+MSi), and the molar amount of phosphorus contained in the insulating film is represented by MP.

摘要翻译： 软磁性材料包括具有金属磁性颗粒的多个复合磁性颗粒和围绕金属磁性颗粒表面的绝缘膜。 金属磁性粒子含有铁作为主要成分。 绝缘膜含有铝，硅，磷和氧。 在绝缘膜中含有的铝的摩尔量为绝对膜的情况下，绝缘膜满足关系0.4 <= MA1 /（MA1 + MSi）<= 0.9，0.25 <=（MA1 + MSi）/ MP < 由MA1表示，绝缘膜中所含的铝的摩尔量与绝缘膜中所含的硅的摩尔量之和表示为（MA1 + MSi），表示绝缘膜中所含的磷的摩尔量 由MP。

公开(公告)号：US20120164320A1

公开(公告)日：2012-06-28

申请号：US13409850

申请日：2012-03-01

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

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

IPC分类号： B05D5/12

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/02 ,  H01F1/26 ,  H01F3/08 ,  H01F41/0246 ,  Y10T428/2991 ,  Y10T428/2998 ,  B22F1/007 ,  B22F3/02 ,  B22F3/10

摘要： A manufacturing method of a soft magnetic material has a step of preparing a metal magnetic particle containing iron as the main component, and a step of forming an insulating film surrounding the surface of the metal magnetic particle. The step of forming the insulating film includes a step of mixing and stirring the metal magnetic particle, aluminum alkoxide, silicon alkoxide, and phosphoric acid.

摘要翻译： 软磁性材料的制造方法具有制备以铁为主要成分的金属磁性体的工序，以及形成包围金属磁性体的表面的绝缘膜的工序。 形成绝缘膜的步骤包括混合和搅拌金属磁性颗粒，醇铝，硅烷氧化物和磷酸的步骤。

公开(公告)号：US08153256B2

公开(公告)日：2012-04-10

申请号：US12160079

申请日：2006-11-22

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

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

IPC分类号： B32B5/16 ,  H01F1/12 ,  H01F1/24

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/02 ,  H01F1/26 ,  H01F3/08 ,  H01F41/0246 ,  Y10T428/2991 ,  Y10T428/2998 ,  B22F1/007 ,  B22F3/02 ,  B22F3/10

摘要： The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4≦MAl/(MAl+MSi)≦0.9 and the relationship of 0.25≦(MAl+MSi)/MP≦1.0 in the case that molar amount of aluminum contained in the insulating film is represented by MAl, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (MAl+MSi), and the molar amount of phosphorus contained in the insulating film is represented by MP.

摘要翻译： 软磁性材料包括具有金属磁性颗粒的多个复合磁性颗粒和围绕金属磁性颗粒表面的绝缘膜。 金属磁性粒子含有铁作为主要成分。 绝缘膜含有铝，硅，磷和氧。 在绝缘膜中包含的铝的摩尔量表示的情况下，该绝缘膜满足关系0.4＆nlE; MA1 /（MA1 + MSi）＆nlE; 0.9以及0.25＆nlE;（MA1 + MSi）/MP_nlE1.0的关系 通过MA1，绝缘膜中所含的铝的摩尔量和绝缘膜中所含的硅的摩尔量之和由（MA1 + MSi）表示，绝缘膜中所含的磷的摩尔量由 MP。

公开(公告)号：US20080248245A1

公开(公告)日：2008-10-09

申请号：US11919704

申请日：2006-07-20

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

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

IPC分类号： B32B5/16 ,  B32B15/02 ,  B05D1/00 ,  C04B35/634

CPC分类号： H01F3/08 ,  B22F1/02 ,  B22F1/025 ,  B22F2998/10 ,  C22C33/02 ,  C22C2202/02 ,  H01F1/24 ,  H01F1/26 ,  H01F1/33 ,  H01F41/0246 ,  Y10T428/2438 ,  Y10T428/2991 ,  B22F1/0059 ,  B22F3/02

摘要： A soft magnetic material includes a plurality of composite magnetic particles. Each of the plurality of composite magnetic particles has a metal magnetic particle including iron, a lower film surrounding the surface of the metal magnetic particle and including a nonferrous metal, and an insulating upper film surrounding the surface of the lower film and including an inorganic compound. The inorganic compound contains at least one element of oxygen and carbon. The nonferrous metal has an affinity with at least one of oxygen and carbon that is larger than such affinity of iron. The nonferrous metal has a diffusion coefficient with respect to at least one of oxygen and carbon that is smaller than such diffusion coefficient of iron. Thus, a soft magnetic material that provides desirable magnetic properties, a method of manufacturing a soft magnetic material, a dust core, and a method of manufacturing a dust core are provided.

摘要翻译： 软磁性材料包括多个复合磁性颗粒。 多个复合磁性颗粒中的每一个具有包含铁的金属磁性颗粒，围绕金属磁性颗粒的表面的下部膜，并且包含有色金属，以及包围下部膜的表面的包含无机化合物的绝缘上层膜 。 无机化合物含有至少一种氧和碳元素。 有色金属与氧和碳中的至少一种具有比铁的这种亲和力更大的亲和力。 有色金属相对于氧和碳中的至少一种具有小于铁的扩散系数的扩散系数。 因此，提供了提供所需磁性的软磁性材料，软磁性材料的制造方法，防尘芯，以及制造防尘芯的方法。

公开(公告)号：US08557330B2

公开(公告)日：2013-10-15

申请号：US13409850

申请日：2012-03-01

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

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

IPC分类号： B05D7/00 ,  H01F1/20 ,  H01F1/22 ,  H01F1/24

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/02 ,  H01F1/26 ,  H01F3/08 ,  H01F41/0246 ,  Y10T428/2991 ,  Y10T428/2998 ,  B22F1/007 ,  B22F3/02 ,  B22F3/10

摘要： A manufacturing method of a soft magnetic material has a step of preparing a metal magnetic particle containing iron as the main component, and a step of forming an insulating film surrounding the surface of the metal magnetic particle. The step of forming the insulating film includes a step of mixing and stirring the metal magnetic particle, aluminum alkoxide, silicon alkoxide, and phosphoric acid.

摘要翻译： 软磁性材料的制造方法具有制备以铁为主要成分的金属磁性体的工序，以及形成包围金属磁性体的表面的绝缘膜的工序。 形成绝缘膜的步骤包括混合和搅拌金属磁性颗粒，醇铝，硅烷氧化物和磷酸的步骤。

公开(公告)号：US20090042064A1

公开(公告)日：2009-02-12

申请号：US12188343

申请日：2008-08-08

申请人： Seiji ISHITANI ,  Hiroko Morii ,  Kazuyuki Hayashi

发明人： Seiji ISHITANI ,  Hiroko Morii ,  Kazuyuki Hayashi

IPC分类号： G11B5/733

CPC分类号： G11B5/8404 ,  B82Y30/00 ,  C01G49/06 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/80 ,  C04B35/62675 ,  C04B35/62802 ,  C04B35/62807 ,  C04B35/62813 ,  C04B35/62815 ,  C04B35/62894 ,  C04B2235/3272 ,  C04B2235/5276 ,  C04B2235/5296 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/72 ,  C09C1/24 ,  G11B5/73 ,  Y10T428/2991

摘要： The present invention relates to non-magnetic particles for non-magnetic undercoat layer of magnetic recording medium, comprising: hematite particles; an inner coating layer comprising a phosphorus-containing inorganic compound which is formed on a surface of the respective hematite particles; and an outer coating layer comprising an aluminum-containing inorganic compound which is formed on an outside of the inner coating layer comprising the phosphorus-containing inorganic compound.

摘要翻译： 本发明涉及磁记录介质的非磁性底涂层的非磁性颗粒，其包括：赤铁矿颗粒; 包含在各赤铁矿颗粒的表面上形成的含磷无机化合物的内涂层; 以及包含含铝无机化合物的外涂层，其形成在包含含磷无机化合物的内涂层的外侧。