公开(公告)号：US20080101979A1

公开(公告)日：2008-05-01

申请号：US11877843

申请日：2007-10-24

申请人： Tomotsugu KATO ,  Hideto Mikami

发明人： Tomotsugu KATO ,  Hideto Mikami

IPC分类号： C22C38/00 ,  B22F3/00

CPC分类号： H01F1/348 ,  H01F1/36

摘要： The ferrite sintered body of the present invention is a hexagonal Z-type ferrite sintered body having a high permeability and a low anisotropy of permeability, comprising a c-axis-oriented plane in which a degree of orientation fc⊥ is not less than 0.4, said degree of orientation being given as fc⊥=ΣI(HK0)/ΣI(HKL), when I(HKL) is the integrated intensity of a diffraction peak represented by an index (HKL) in an X-ray diffraction pattern of which measurement range is 2θ=20 to 80°, wherein the degree of orientation fc∥ calculated from fc∥=I(0018)/I(110) in an X-ray diffraction is not less than 0.3 in at least two planes which are perpendicular to the aforementioned c-axis-oriented plane and are perpendicular to each other. Where ΣI(HKL) is the sum of integrated intensity of all the diffraction peaks of hexagonal Z-type ferrite.

摘要翻译： 本发明的铁氧体烧结体是具有高导磁率和低磁导率各向异性的六方晶系Z型铁氧体烧结体，其包括c轴取向平面，其中取向度fc⊥不小于0.4，则当I（HKL）是由下式表示的衍射峰的积分强度时，所述取向度被赋予为fc⊥= SigmaI（HK0）/ SigmaI（HKL） 指数（HKL）在其测量范围为2θ= 20°至80°的X射线衍射图中，其中由fc∈I= I计算的取向度f c∈/ X射线衍射中的（0018）/ I（110）在与上述c轴取向平面垂直的至少两个平面中不小于0.3，并且彼此垂直。 其中SigmaI（HKL）是六边形Z型铁氧体的所有衍射峰的积分强度之和。

公开(公告)号：US20100156733A1

公开(公告)日：2010-06-24

申请号：US12663240

申请日：2008-06-09

申请人： Tomotsugu Kato ,  Masayuki Gonda ,  Hiroyuki Aoyama ,  Hideto Mikami

发明人： Tomotsugu Kato ,  Masayuki Gonda ,  Hiroyuki Aoyama ,  Hideto Mikami

IPC分类号： H01Q1/00 ,  D01F1/08

CPC分类号： H01Q1/2283 ,  H01F17/06 ,  H01Q1/243

摘要： A chip antenna comprising a magnetic substrate comprising Z-type ferrite or Y-type ferrite as a main phase and having a through-hole extending linearly along a center axis, and a conductor penetrating the through-hole, the magnetic phase having a c-axis substantially parallel or perpendicular to the through-hole.

摘要翻译： 一种芯片天线，其特征在于，包括：以Z型铁氧体或Y型铁氧体为主相的磁性基板，具有沿着中心轴线性延伸的通孔，以及贯通所述通孔的导体， 基本上平行或垂直于通孔。

公开(公告)号：US20060219974A1

公开(公告)日：2006-10-05

申请号：US11363287

申请日：2006-02-28

申请人： Tomotsugu Kato

发明人： Tomotsugu Kato

IPC分类号： H01F1/00 ,  C04B35/26

CPC分类号： C01G49/0018 ,  C01G49/009 ,  C01P2002/32 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/42 ,  C01P2006/80 ,  C04B35/2633 ,  C04B2235/3203 ,  C04B2235/3215 ,  C04B2235/3263 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3418 ,  C04B2235/763 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96

摘要： The ferrite sintered body of hexagonal Z-type ferrite contains 17 mol % to 21 mol % of BaO, 6 mol % to 13 mol % of CoO, the remainder being Fe2O3 as its main components and also contains 0.05% to 1.0% by mass of Li, based on the main components, in terms of Li2CO3 and 0.05% to 0.5% by mass of Si, based on the main components, in terms of SiO2. Further, the rate of a spinel-type ferrite phase to entire phases including a Z-type ferrite phase and the spinel-type ferrite phase is 5% or less in terms of an area ratio in the cross section of the sintered body.

摘要翻译： 六方晶系Z型铁氧体的铁氧体烧结体含有17mol％〜21mol％的BaO，6mol％〜13mol％的CoO，余量为Fe 2 O 3 O 3， SUB>作为其主要成分，并且相对于主要成分，以Li 2 CO 3 3％计含有0.05〜1.0质量％的Li，0.05〜1.0质量％ 0.5质量％的Si，以SiO 2为主成分。 此外，尖晶石型铁素体相与包含Z型铁素体相和尖晶石型铁素体相的整个相的比率以烧结体的截面积的面积比计为5％以下。

公开(公告)号：US07390425B2

公开(公告)日：2008-06-24

申请号：US11363287

申请日：2006-02-28

申请人： Tomotsugu Kato

发明人： Tomotsugu Kato

IPC分类号： H01F1/34

CPC分类号： C01G49/0018 ,  C01G49/009 ,  C01P2002/32 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/42 ,  C01P2006/80 ,  C04B35/2633 ,  C04B2235/3203 ,  C04B2235/3215 ,  C04B2235/3263 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3418 ,  C04B2235/763 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96

摘要： The ferrite sintered body of hexagonal Z-type ferrite contains 17 mol % to 21 mol % of BaO, 6 mol % to 13 mol % of CoO, the remainder being Fe2O3 as its main components and also contains 0.05% to 1.0% by mass of Li, based on the main components, in terms of Li2CO3 and 0.05% to 0.5% by mass of Si, based on the main components, in terms of SiO2. Further, the rate of a spinel-type ferrite phase to entire phases including a Z-type ferrite phase and the spinel-type ferrite phase is 5% or less in terms of an area ratio in the cross section of the sintered body.

摘要翻译： 六方晶系Z型铁氧体的铁氧体烧结体含有17mol％〜21mol％的BaO，6mol％〜13mol％的CoO，余量为Fe 2 O 3 O 3， SUB>作为其主要成分，并且相对于主要成分，以Li 2 CO 3 3％计含有0.05〜1.0质量％的Li，0.05〜1.0质量％ 0.5质量％的Si，以SiO 2为主成分。 此外，尖晶石型铁素体相与包含Z型铁素体相和尖晶石型铁素体相的整个相的比率以烧结体的截面积的面积比计为5％以下。

公开(公告)号：US08253643B2

公开(公告)日：2012-08-28

申请号：US12663240

申请日：2008-06-09

申请人： Tomotsugu Kato ,  Masayuki Gonda ,  Hiroyuki Aoyama ,  Hideto Mikami

发明人： Tomotsugu Kato ,  Masayuki Gonda ,  Hiroyuki Aoyama ,  Hideto Mikami

IPC分类号： H01Q1/00

CPC分类号： H01Q1/2283 ,  H01F17/06 ,  H01Q1/243

摘要： A chip antenna comprising a magnetic substrate comprising Z-type ferrite or Y-type ferrite as a main phase and having a through-hole extending linearly along a center axis, and a conductor penetrating the through-hole, the magnetic phase having a c-axis substantially parallel or perpendicular to the through-hole.

摘要翻译： 一种芯片天线，其特征在于，包括：以Z型铁氧体或Y型铁氧体为主相的磁性基板，具有沿着中心轴线性延伸的通孔，以及贯通所述通孔的导体， 基本上平行或垂直于通孔。

公开(公告)号：US20090295526A1

公开(公告)日：2009-12-03

申请号：US12225702

申请日：2007-03-13

申请人： Hideto Mikami ,  Tomotsugu Kato ,  Miyako Nakada ,  Shin Noguchi

发明人： Hideto Mikami ,  Tomotsugu Kato ,  Miyako Nakada ,  Shin Noguchi

IPC分类号： H01F27/30 ,  H01F7/06

CPC分类号： H01F27/2804 ,  C01G49/009 ,  C01G53/006 ,  C04B35/2633 ,  C04B35/6262 ,  C04B35/62685 ,  C04B2235/3203 ,  C04B2235/3215 ,  C04B2235/3263 ,  C04B2235/3277 ,  C04B2235/3418 ,  C04B2235/5409 ,  C04B2235/605 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/787 ,  H01F1/348 ,  H01F41/043 ,  H01F2017/002 ,  H01F2027/2809 ,  H01F2027/2819 ,  Y10T29/4902

摘要： In a coil component of the present invention, a coil member having a plurality of coil lines laminated through an insulating layer is sandwiched by hexagonal ferrite substrates, and the hexagonal ferrite substrate has anisotropy. To have the “anisotropy” means that alignment of the crystal orientation is different according to a direction of the substrate, in other words, that anisotropy is provided in the c-axis orientation of ferrite crystal grains of the hexagonal ferrite substrate. As the result of the “anisotropy”, an initial magnetic permeability is also different according to direction. By using the hexagonal ferrite substrate as a magnetic substrate to sandwich the coil member so as to form a magnetic path, the initial magnetic permeability can be maintained up to a high frequency, and a high-frequency characteristic of impedance generated by the coil lines can be improved.

摘要翻译： 在本发明的线圈部件中，具有通过绝缘层层叠的多个线圈线的线圈部件被六角铁氧体基板夹持，六方晶系铁氧体基板具有各向异性。 具有“各向异性”意味着晶体取向的取向根据衬底的方向而不同，换句话说，在六方晶系铁氧体衬底的铁素体晶粒的c轴取向上提供各向异性。 作为“各向异性”的结果，初始磁导率根据方向也不同。 通过使用六边形铁氧体基板作为磁性基板夹住线圈构件以形成磁路，可以将初始导磁率保持高达高频，并且由线圈线产生的阻抗的高频特性可以 要改进