公开(公告)号：US4603314A

公开(公告)日：1986-07-29

申请号：US542948

申请日：1983-10-18

申请人： Kazuo Fukunaga ,  Minoru Higurashi ,  Motoyoshi Fujita ,  Eiichi Suga ,  Masao Shigeta ,  Norio Sato

发明人： Kazuo Fukunaga ,  Minoru Higurashi ,  Motoyoshi Fujita ,  Eiichi Suga ,  Masao Shigeta ,  Norio Sato

IPC分类号： H01F27/02 ,  H01F27/06 ,  H01F27/26 ,  H01F37/00 ,  H01F15/02

CPC分类号： H01F27/263 ,  H01F27/027 ,  H01F27/06 ,  H01F37/00 ,  H01F2027/065 ,  Y10T29/49071 ,  Y10T29/49078

摘要： The improved structure of an inductor with an amorphous sheet core and a winding has been found. A core assembly has a pair of housing halves made of non-magnetic material with U-shaped track, in which a laminated amorphous sheet is mounted. The ends of the halves are inserted in a winding so that the ends of the cores abut with each other directly or through a gap spacer. The core halves are pressed by spring action to assemble the inductor. The core halves are produced by the steps of winding an amorphous sheet to a coil, inserting the coil in the track of the housing, and impregnating the coil with plastics.

摘要翻译： 已经发现具有非晶片芯和绕组的电感器的改进的结构。 芯组件具有由非磁性材料制成的具有U形轨道的一对壳体半部，其中安装有层压非晶片。 半部的端部插入绕组中，使得芯的端部直接或间隔地间隔开。 通过弹簧作用按压半芯以组装电感器。 芯半部通过将非晶片卷绕到线圈，将线圈插入壳体的轨道中并用塑料浸渍线圈的步骤来产生。

公开(公告)号：US06310837B1

公开(公告)日：2001-10-30

申请号：US09170083

申请日：1998-10-13

申请人： Tsutomu Chou ,  Masao Shigeta ,  Masahiro Karatsu ,  Mari Fujii ,  Chikara Ishizaka ,  Katsumi Saito ,  Katsuhiko Wakayama ,  Shohei Mimura ,  Masahiro Ito

发明人： Tsutomu Chou ,  Masao Shigeta ,  Masahiro Karatsu ,  Mari Fujii ,  Chikara Ishizaka ,  Katsumi Saito ,  Katsuhiko Wakayama ,  Shohei Mimura ,  Masahiro Ito

IPC分类号： G11B566

CPC分类号： G06K19/06196 ,  Y10T428/2982

摘要： The invention is a magnetic recording medium which is effectively protected against forgery by the alteration of recorded data, and a method for carrying out writing and reading on this magnetic recording medium. The magnetic recording medium of the invention comprises a recording material composed of a crystalline alloy containing Fe and Al . In the recoding material, the total amount of Fe and Al is at least 90 at % and the atomic ratio Al/(Fe+Al) ranges from 0.30 to 0.45. The recording material changes from a disordered phase to an ordered phase by heating. The recording material has a saturation magnetization of at least 45 emu/g prior to heating and lowers its saturation magnetization by at least 35 emu/g upon heating. Dark regions are observable in a bright-field image of the recording material by transmission electron microscopy, the dark regions accounting for 15-60% of the recording material in areal ratio and having a maximum breadth of 10-200 nm.

摘要翻译： 本发明是通过改变记录数据有效地防止伪造的磁记录介质，以及用于在该磁记录介质上执行写和读的方法。 本发明的磁记录介质包括由含有Fe和Al的结晶合金构成的记录材料。 在记录材料中，Fe和Al的总量为90原子％以上，原子比Al /（Fe + Al）为0.30〜0.45。 记录材料通过加热从无序相变为有序相。 记录材料在加热之前具有至少45emu / g的饱和磁化强度，并且在加热时将其饱和磁化降低至少35emu / g。 通过透射电子显微镜在记录材料的明场图像中可以观察到暗区域，黑色区域占记录材料的面积比率的15-60％，最大宽度为10-200nm。

公开(公告)号：US5211767A

公开(公告)日：1993-05-18

申请号：US852553

申请日：1992-03-17

申请人： Masao Shigeta ,  Asako Kajita

发明人： Masao Shigeta ,  Asako Kajita

IPC分类号： C21D6/00 ,  C22C38/00 ,  C22C45/02 ,  H01F1/153 ,  H01F27/24

CPC分类号： C22C45/02 ,  H01F1/15308

摘要： Soft magnetic alloy comprising Fe, a vitrifying element (Si and B), and Cu, and containing a crystalline phase shows a low magnetic permeability of up to 3,000 at 100 kHz. Magnetic cores formed therefrom have low permeability, a wide unsaturation region, and iso.permeability without forming a gap and find application in choke coils and transformers.

摘要翻译： 包含Fe，玻璃化元素（Si和B）和Cu并含有结晶相的软磁性合金在100kHz下显示高达3,000的低磁导率。 由此形成的磁芯具有低渗透性，宽的不饱和区域和不透气性，而不形成间隙并且可用于扼流线圈和变压器。

公开(公告)号：US4637843A

公开(公告)日：1987-01-20

申请号：US730140

申请日：1985-05-03

申请人： Suguru Takayama ,  Masao Shigeta

发明人： Suguru Takayama ,  Masao Shigeta

IPC分类号： H01F1/153 ,  H01F3/04 ,  H01F17/06

CPC分类号： H01F3/04 ,  H01F1/15308

摘要： The present invention relates to the core of a noise filter.Conventionally, ferrite or iron powder is used as the core of a noise filter. Some patent publications disclose the core of a noise filter made of an amorphous magnetic alloy.An amorphous magnetic alloy which as a low pulse-noise resistance deterioration percentage is that on or within the curve X and Y of FIG. 3.

摘要翻译： 本发明涉及噪声滤波器的核心。 通常，使用铁氧体或铁粉作为噪声滤波器的核心。 一些专利文献公开了由非晶磁性合金制成的噪声滤波器的核心。 作为低脉冲噪声电阻劣化百分比的非晶磁性合金是在图8的曲线X和Y的上方。 3。

公开(公告)号：US4923533A

公开(公告)日：1990-05-08

申请号：US225836

申请日：1988-07-29

申请人： Masao Shigeta ,  Tsutomu Choh ,  Hiroyoshi Shimizu ,  Ippo Hirai ,  Shohei Mimura ,  Atsushi Makimura ,  Hiroshi Hosaka

发明人： Masao Shigeta ,  Tsutomu Choh ,  Hiroyoshi Shimizu ,  Ippo Hirai ,  Shohei Mimura ,  Atsushi Makimura ,  Hiroshi Hosaka

IPC分类号： H01F1/153 ,  H05K9/00

CPC分类号： H05K9/0083 ,  H01F1/1535 ,  H01F1/15375 ,  Y10T428/12167

摘要： A powder comprising flakes of magnetically soft amorphous alloy having an average thickness of 0.01-1 .mu.m and an aspect ratio of 10-10,000 is blended with a binder to form a coating composition from which a magnetic shield is fabricated. The alloy is basically an Fe-B-Si ternary alloy in which iron may be partially replaced by another metal.

公开(公告)号：US4621248A

公开(公告)日：1986-11-04

申请号：US621358

申请日：1984-06-18

申请人： Masao Shigeta ,  Shotatsu Sugenoya ,  Tsutomu Cho

发明人： Masao Shigeta ,  Shotatsu Sugenoya ,  Tsutomu Cho

IPC分类号： H01F27/24 ,  H01F27/25

CPC分类号： H01F27/25 ,  Y10T29/49071

摘要： The present invention relates to a core of magnetic amorphous alloy. A thin strip of such alloy is wound and then cut to provide, e.g., C-shaped pieces. A pair of C-shaped pieces is assembled to provide the core. Conventionally, the magnetic properties, e.g., the watt loss, of the core are impaired at the cut ends of a thin strip due to the formation of burrs.The present invention is characterized by providing the cut ends with a thickness substantially the same as the thickness of the non-cut portion of the thin strip and by polishing the cut ends substantially parallel to the major surface of the thin strip, thereby improving the magnetic properties of the core.

摘要翻译： 本发明涉及一种磁性无定形合金的芯体。 将这种合金的薄带缠绕并切割，以提供例如C形件。 组装一对C形件以提供芯。 通常，由于形成毛刺，芯片的磁特性（例如瓦特损耗）在薄带的切割端受损。 本发明的特征在于，提供具有与薄带的非切割部分的厚度基本相同的厚度的切割端，并且通过抛光大致平行于薄带主表面的切割端，从而改善磁性 核心的属性。

公开(公告)号：US4587507A

公开(公告)日：1986-05-06

申请号：US443923

申请日：1982-11-23

申请人： Suguru Takayama ,  Masao Shigeta

发明人： Suguru Takayama ,  Masao Shigeta

IPC分类号： C22C45/02 ,  H01F1/153 ,  H01F27/25 ,  H01F17/06

CPC分类号： H01F27/25 ,  H01F1/15358

摘要： Conventionally, silicon steel strips and ferrite cores have been used as the core of a choke coil. These strips and the like have not yet been replaced with amorphous alloy because in the known amorphous magnetic alloy the pre-magnetization characteristic, the amount of heat generated, and the secular change are poor.The present invention proposes a core of a choke coil which consists of a coiled thin strip of an amorphous alloy, and has at least one cut air gap, the coiled regions of the thin strip being bound to one another at at least in the neighborhood of said at least one cut air gap, and said amorphous magnetic alloy is essentially comprised of the following composition, Fe.sub.x Mn.sub.y (Si.sub.p B.sub.q P.sub.r C.sub.s).sub.z, wherein x+y+z is 100 atomic % based on all of the elements, y is from 0.001 to 10 atomic %, z is from 21 to 25.5 atomic %, p+q+r+s is atomic % 1, p is from 0.40 to 0.75, r is fro 0.0001 to 0.05, the ratio s/q is from 0.03 to 0.4, and z is z.ltoreq.50p+1, z.ltoreq.10p+19, z.gtoreq.30p+2, and z.gtoreq.13p+13.7.

摘要翻译： 通常，硅钢带和铁氧体磁芯已被用作扼流线圈的核心。 这些条带等尚未被非晶合金替代，因为在已知的非晶磁性合金中，预磁化特性，产生的热量和长期变化较差。 本发明提出了一种扼流线圈的芯体，其由非晶态合金的盘状薄带组成，并且具有至少一个切割气隙，薄带的线圈区域至少在至少在 所述至少一个切割气隙，并且所述非晶磁性合金基本上由以下组成FexMny（SipBqPrC）z组成，其中x + y + z基于所有元素为100原子％，y为0.001至10 原子％，z为21〜25.5原子％，p + q + r + s为原子％1，p为0.40〜0.75，r为0.0001〜0.05，s / q为0.03〜0.4， z是z <= 50p + 1，z <= 10p + 19，z> / = 30p + 2，z> = 13p + 13.7。

公开(公告)号：US6029895A

公开(公告)日：2000-02-29

申请号：US244437

申请日：1999-02-04

申请人： Masahiro Ito ,  Shohei Mimura ,  Masao Shigeta ,  Tsutomu Chou

发明人： Masahiro Ito ,  Shohei Mimura ,  Masao Shigeta ,  Tsutomu Chou

IPC分类号： G06K19/06

CPC分类号： G06K19/06196

摘要： A magnetic recording medium, and a method of making the same, including an irreversible recording layer which undergoes an irreversible change of saturation magnetization upon heating. The magnetic recording medium includes on at least a portion of a substrate an irreversible recording layer which contains an irreversible recording material undergoing an irreversible change of saturation magnetization upon heating. The irreversible recording layer includes at least in part a fixed information recording region for recording the fixed information of the medium. In the fixed information recording region, a plurality of heated bars whose saturation magnetization has been irreversibly changed are arrayed substantially parallel to each other. The array pattern of the heated bars or the array pattern of unheated bars disposed between adjacent ones of the heated bars contains the fixed information encoded in a frequency modulation process or phase modulation process.

摘要翻译： 一种磁记录介质及其制造方法，包括在加热时经受饱和磁化强度的不可逆变化的不可逆记录层。 磁记录介质在衬底的至少一部分上包括不可逆记录层，其含有在加热时经历饱和磁化强度的不可逆变化的不可逆记录材料。 不可逆记录层至少部分地包括用于记录介质的固定信息的固定信息记录区域。 在固定信息记录区域中，饱和磁化强度已经不可逆地改变的多个加热棒彼此基本平行排列。 设置在相邻加热棒之间的加热棒的阵列图案或未加热棒的阵列图案包含以频率调制过程或相位调制过程编码的固定信息。

公开(公告)号：US5207841A

公开(公告)日：1993-05-04

申请号：US681061

申请日：1991-04-05

申请人： Masao Shigeta ,  Asako Kajita ,  Ippo Hirai

发明人： Masao Shigeta ,  Asako Kajita ,  Ippo Hirai

IPC分类号： C22C38/34

CPC分类号： C22C38/34

摘要： Soft magnetic powder comprising flat soft magnetic particles of an alloy having a composition defined and encompassed by polygon ABCDE in a Fe-Si-Cr ternary composition diagram of FIG. 1 or polygon JKLMN in a Fe-Si-Al ternary composition diagram of FIG. 4 is suitable for use in magnetic shields. The flat soft magnetic particles are prepared by furnishing alloy particles having a predetermined composition, flattening them, and heat treating the flat particles to develop a peak corresponding to plane index (002) in an X-ray diffraction diagram thereof.

摘要翻译： 软磁性粉末包括具有在图3的Fe-Si-Cr三元组成图中由多边形ABCDE限定和包围的合金的合金的扁平软磁性颗粒。 1或多边形JKLMN在图3的Fe-Si-Al三元组成图中。 4适用于磁屏蔽。 通过提供具有预定组成的合金颗粒，使它们平坦化并且在其X射线衍射图中对扁平颗粒进行热处理以形成对应于平面折射率（002）的峰值来制备扁平软磁性颗粒。

公开(公告)号：US4558297A

公开(公告)日：1985-12-10

申请号：US538886

申请日：1983-10-04

申请人： Masao Shigeta ,  Teruhiko Ojima

发明人： Masao Shigeta ,  Teruhiko Ojima

IPC分类号： H01F1/153 ,  H01F3/04 ,  H01F27/24

CPC分类号： H01F1/15383 ,  H01F3/04

摘要： The present invention relates to a saturable core which consists of a coiled thin strip of an amorphous magnetic alloy. The present invention provides a saturable core having a high .DELTA.Bs, a low power loss, a good saturation property, and low secular changes of the magnetic properties, due to determining the coiling direction of the saturable core so that it is the same as that of a coil heat treated.

摘要翻译： 本发明涉及一种可饱和芯，其由无定形磁性合金的卷绕的薄带组成。 本发明由于确定可饱和芯的卷绕方向而提供了具有高DELTA Bs，低功率损耗，良好的饱和特性和低的磁性能的长期变化的可饱和芯，使得它与 的线圈热处理。