公开(公告)号：US5183631A

公开(公告)日：1993-02-02

申请号：US535080

申请日：1990-06-08

申请人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Mitsuo Satomi ,  Ken Hirota

发明人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Mitsuo Satomi ,  Ken Hirota

IPC分类号： C22C32/00 ,  B22F1/02 ,  B22F3/00 ,  B22F3/14 ,  C04B35/74 ,  C22C1/04 ,  C22C1/10 ,  C22C33/02 ,  C22C38/00 ,  H01F1/24

CPC分类号： H01F1/24 ,  B22F1/02 ,  C04B35/74 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/2991

摘要： A composite material is provided which includes a discrete phase including grains made of a first substance; and a continuous phase including a thin coating film made of a second substance and formed on the surface of each of the grains. The thin coating film has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film. The porosity of the composite material is 5% or less.

公开(公告)号：US5238507A

公开(公告)日：1993-08-24

申请号：US535082

申请日：1990-06-08

申请人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Ken Hirota ,  Mitsuo Satomi

发明人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Ken Hirota ,  Mitsuo Satomi

IPC分类号： G11B5/133 ,  G11B5/193 ,  H01F1/08 ,  H01F1/24

CPC分类号： G11B5/133 ,  G11B5/193 ,  H01F1/083 ,  H01F1/24 ,  Y10S428/90 ,  Y10T428/115 ,  Y10T428/249956 ,  Y10T428/2991

摘要： A magnetic material is provided which includes a discrete phase including grains made of a first substance which comprises a magnetic metal; and a continuous phase including a thin coating film made of a second substance which comprises a dielectric or insulating substance. The thin coating film is formed on the surface of the grains and has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film.

公开(公告)号：US5352522A

公开(公告)日：1994-10-04

申请号：US945763

申请日：1992-09-16

申请人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Mitsuo Satomi ,  Ken Hirota

发明人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Mitsuo Satomi ,  Ken Hirota

IPC分类号： C22C32/00 ,  B22F1/02 ,  B22F3/00 ,  B22F3/14 ,  C04B35/74 ,  C22C1/04 ,  C22C1/10 ,  C22C33/02 ,  C22C38/00 ,  H01F1/24 ,  B32B5/16

CPC分类号： H01F1/24 ,  B22F1/02 ,  C04B35/74 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/2991

摘要： A composite material is provided which includes a discrete phase including grains made of a first substance; and a continuous phase including a thin coating film made of a second substance and formed on the surface of each of the grains. The thin coating film has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film. The porosity of the composite material is 5% or less.

摘要翻译： 提供一种复合材料，其包括离散相，包括由第一物质制成的颗粒; 以及连续相，包括由第二物质制成的薄涂层，并形成在每个晶粒的表面上。 薄涂膜的平均厚度小于颗粒的平均粒度。 颗粒通过薄涂膜基本上彼此分离。 复合材料的孔隙率为5％以下。

公开(公告)号：US5350628A

公开(公告)日：1994-09-27

申请号：US978564

申请日：1992-11-19

申请人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Ken Hirota ,  Mitsuo Satomi

发明人： Koichi Kugimiya ,  Yasuhiro Sugaya ,  Osamu Inoue ,  Ken Hirota ,  Mitsuo Satomi

IPC分类号： G11B5/133 ,  G11B5/193 ,  H01F1/08 ,  H01F1/24 ,  G11B5/00 ,  H01F1/00

CPC分类号： G11B5/133 ,  G11B5/193 ,  H01F1/083 ,  H01F1/24 ,  Y10S428/90 ,  Y10T428/115 ,  Y10T428/249956 ,  Y10T428/2991

摘要： A magnetic material is provided which includes a discrete phase including grains made of a first substance which comprises a magnetic metal; and a continuous phase including a thin coating film made of a second substance which comprises a dielectric or insulating substance. The thin coating film is formed on the surface of the grains and has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film.

摘要翻译： 提供磁性材料，其包括离散相，包括由包含磁性金属的第一物质制成的颗粒; 以及包括由包含电介质或绝缘物质的第二物质制成的薄涂膜的连续相。 该薄涂层形成在晶粒的表面上，其平均厚度小于晶粒的平均粒径。 颗粒通过薄涂膜基本上彼此分离。

公开(公告)号：US5073214A

公开(公告)日：1991-12-17

申请号：US424728

申请日：1989-10-20

申请人： Ken Hirota ,  Mitsuo Satomi ,  Koichi Kugimiya

发明人： Ken Hirota ,  Mitsuo Satomi ,  Koichi Kugimiya

IPC分类号： C23C8/18 ,  C22C33/02 ,  C22C38/00 ,  C22C38/06 ,  G11B5/147 ,  G11B5/31 ,  H01F1/147

CPC分类号： C22C33/0278 ,  G11B5/147 ,  G11B5/31 ,  H01F1/14791

摘要： A magnetic material having an Fe-Si-Al type magnetic alloy with addition of one or more additive elements selected from a group consisting of Be, Mg, Ca, Sr, Ba, Sc, Y, Nb, Ta and Hf. The material has been subjected to an oxidation heat-treatment so as to contain a predetermined amount of oxygen.

公开(公告)号：US5217818A

公开(公告)日：1993-06-08

申请号：US493799

申请日：1990-03-15

申请人： Mitsuo Satomi ,  Ken Hirota ,  Koichi Kugimiya

发明人： Mitsuo Satomi ,  Ken Hirota ,  Koichi Kugimiya

IPC分类号： G11B5/10 ,  G11B5/127 ,  G11B5/147 ,  G11B5/255 ,  G11B5/31 ,  H01F10/12 ,  H01F10/13 ,  H01F10/26

CPC分类号： G11B5/3106 ,  G11B5/10 ,  G11B5/147 ,  Y10S428/90 ,  Y10T428/1157

摘要： A substrate material for a magnetic head, which comprises an oxide composed mainly of WO.sub.3 and has a thermal expansion coefficient of 100 to 130.times.10.sup.-7 /.degree. C., and a magnetic head using the substrate material.

公开(公告)号：US5164264A

公开(公告)日：1992-11-17

申请号：US535075

申请日：1990-06-08

申请人： Koichi Kugimiya ,  Ken Hirota ,  Mitsuo Satomi

发明人： Koichi Kugimiya ,  Ken Hirota ,  Mitsuo Satomi

IPC分类号： C04B35/628 ,  B22F1/02 ,  B22F3/10 ,  C04B35/111 ,  C04B35/645 ,  C22C29/00 ,  C22C32/00 ,  G11B5/31 ,  H05K1/05

CPC分类号： C04B35/645 ,  B22F1/02 ,  C04B35/111 ,  H05K1/053 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/2991

摘要： A substrate made of a composite material is provided which includes a discrete phase including grains made of a first substance; and a continuous phase including a thin coating film made of a second substance and formed on the surface of the grains. The thin coating film has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film. The porosity of the composite material is 5% or less.

公开(公告)号：US5104739A

公开(公告)日：1992-04-14

申请号：US425876

申请日：1989-10-24

申请人： Ken Hirota ,  Mitsuo Satomi ,  Koichi Kugimiya

发明人： Ken Hirota ,  Mitsuo Satomi ,  Koichi Kugimiya

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/133 ,  G11B5/147 ,  G11B5/153 ,  H01F1/147 ,  H01F41/02

CPC分类号： G11B5/153 ,  G11B5/133 ,  G11B5/147 ,  H01F1/14791 ,  H01F41/0213 ,  Y10S428/90 ,  Y10S428/906 ,  Y10T29/49043 ,  Y10T29/49067 ,  Y10T428/31678

摘要： A laminated magnetic material suitable for use as a material of a magnetic core has a plurality of layers of an Fe-Si-Al type magnetic metal and a plurality of electrically insulating layers both of which layers are laminated alternatingly, the magnetic metal containing 0.001 to 0.3 wt % of oxygen. The laminated magnetic material can be produced by forming, on a base film, a film made of a magnetic powder of an Fe-Si-Al type metal containing 0.001 to 0.3 wt % of oxygen, separating the film of the magnetic powder from the base film, laminating the separated film of magnetic powder so as to form a laminated structure, and extruding the laminated structure.

公开(公告)号：US5034285A

公开(公告)日：1991-07-23

申请号：US235717

申请日：1988-08-22

申请人： Mitsuo Satomi ,  Ken Hirota ,  Osamu Inoue

发明人： Mitsuo Satomi ,  Ken Hirota ,  Osamu Inoue

IPC分类号： G11B5/10 ,  G11B5/127 ,  G11B5/147 ,  G11B5/255

CPC分类号： G11B5/147 ,  G11B5/10 ,  G11B5/1272 ,  G11B5/255 ,  Y10S428/90 ,  Y10T428/1157

摘要： A magnetic head has substrate(s) having a thermal expansion coefficient nearly equal to that of a soft magnetic film formed thereon, and the substrate has a composition consisting of .alpha.-Fe.sub.2 O.sub.3, or a ceramic composition containing 57-96 mol % of MgO, 2-41 mol % of NiO and 2-41 mol % of TiO.sub.2, and the soft magnetic film is an amorphous alloy film.

摘要翻译： 磁头具有几乎等于形成在其上的软磁膜的热膨胀系数的衬底，并且衬底具有由α-Fe2O3组成的组成或包含57-96mol％的MgO的陶瓷组合物， 2-41mol％的NiO和2-41mol％的TiO 2，软磁膜是非晶合金膜。

公开(公告)号：US4901179A

公开(公告)日：1990-02-13

申请号：US161408

申请日：1988-02-23

申请人： Mitsuo Satomi ,  Ken Hirota ,  Osamu Inoue

发明人： Mitsuo Satomi ,  Ken Hirota ,  Osamu Inoue

IPC分类号： G11B5/147 ,  G11B5/21

CPC分类号： G11B5/21 ,  G11B5/1475

摘要： Tape contact surface of a magnetic head is made of magnetic substance of multi-layered structure; interface insulation material for said multi layered structure and/or gap spacer material are made of oxides, complex oxides, nitrides and carbides of transition metal elements, IIa group elements of the periodic table and Zn; and accumulation of magnetic material from magnetic tape is prevented and output of magnetic head is stabilized.

摘要翻译： 磁头的磁带接触表面由多层结构的磁性物质制成; 用于所述多层结构和/或间隙间隔材料的界面绝缘材料由过渡金属元素的氧化物，复合氧化物，氮化物和碳化物，周期表的IIa族元素和Zn组成; 并且防止磁性材料从磁带的积聚，并使磁头的输出稳定。