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1. 发明授权

US4656547A Composite type magnetic head for recording and reproducing high frequency signals 失效
标题翻译：用于记录和再现高频信号的复合型磁头
公开(公告)号：US4656547A
公开(公告)日：1987-04-07
申请号：US608407
申请日：1984-05-09
申请人： Noriyuki Kumasaka , Hideo Fujiwara , Shigekazu Otomo , Takeo Yamashita , Shinji Takayama , Noritoshi Saito , Mitsuhiro Kudo
发明人： Noriyuki Kumasaka , Hideo Fujiwara , Shigekazu Otomo , Takeo Yamashita , Shinji Takayama , Noritoshi Saito , Mitsuhiro Kudo
IPC分类号： G11B5/127 , G11B5/187 , G11B5/23 , G11B5/245 , G11B5/147 , G11B5/17
CPC分类号： G11B5/1874
摘要： There is provided a structure of a composite type magnetic head and its manufacturing method. The composite type magnetic head comprises: two high permeability ferrite blocks with projections having nearly edged sections formed thereon; magnetic films having a high saturation flux density deposited on the side faces of the projections, the magnetic films confronting each other via a functional gap near front ends of said projections; guard films deposited over the magnetic films comprising a non-magnetic material; and non-magnetic materials filled on the guard films up to side face of the coil. This magnetic head exhibits excellent recording and reproducing characteristics. The contour effect is negligibly small. The reaction between the magnetic film and the non-magnetic material is prevented by the guard film.
摘要翻译：提供复合型磁头的结构及其制造方法。复合型磁头包括：两个高磁导率铁氧体块，其上形成有几乎边缘的突起; 沉积在突起的侧面上的具有高饱和磁通密度的磁性膜通过在所述突起的前端附近的功能间隙相互面对; 保护膜沉积在包含非磁性材料的磁性膜上; 以及填充在保护膜上的非磁性材料直到线圈的侧面。该磁头具有出色的记录和再现特性。轮廓效应可忽略不计。保护膜可防止磁性膜与非磁性材料之间的反应。

2. 发明授权

US4559572A Magnetic head and method of fabricating same 失效
标题翻译：磁头及其制造方法
公开(公告)号：US4559572A
公开(公告)日：1985-12-17
申请号：US575704
申请日：1984-01-31
申请人： Noriyuki Kumasaka , Hideo Fujiwara , Shigekazu Otomo , Takeo Yamashita , Shinji Takayama , Noritoshi Saito , Nobuo Kobayashi , Mitsuhiro Kudo
发明人： Noriyuki Kumasaka , Hideo Fujiwara , Shigekazu Otomo , Takeo Yamashita , Shinji Takayama , Noritoshi Saito , Nobuo Kobayashi , Mitsuhiro Kudo
IPC分类号： G11B5/127 , G11B5/147 , G11B5/23 , G11B5/31 , G11B5/12
CPC分类号： G11B5/147 , G11B5/3106
摘要： A magnetic head core and a method of fabricating same, wherein a magnetic circuit is constituted by a pair of magnetic films having a V-shaped cross section which face each other at each protrudent section through the gap material. The cross-sectional portion of the V-shaped film is exposed to the surface facing the magnetic recording medium. The protrusions of the magnetic film pair have tip planes parallel to each other and substantially perpendicular to the moving direction of the magnetic recording medium. The tip plane has a width defined by the line of intersection between the plane and the surface facing the magnetic recording medium in correspondence to the recording track width. At least one of the magnetic films has a window for winding an excitation coil. The magnetic film is formed on the non-magnetic protection member having a V-shaped protrusion. The magnetic head has superior recording and reproducing characteristics in a wide frequency band with less rubbing noise, high wear-resistivity and high productivity, and operates without the pseudo gap effect. The magnetic head core is fabricated through the steps of forming a coil winding groove in the gap forming plane of a non-magnetic core block, forming a number of parallel grooves perpendicularly to the winding groove so that a number of V-shaped protrusions are produced, forming a magnetic film on the surface of the protrusions, forming a gap plane after the magnetic film has been coated with non-magnetic material, and splitting the block and then combining the two core blocks to complete a magnetic head core.
摘要翻译：一种磁头芯及其制造方法，其中磁路由通过间隙材料的每个突出部分彼此面对的具有V形横截面的一对磁膜构成。 V形膜的横截面部分暴露于面向磁记录介质的表面。磁性膜对的突起具有彼此平行的并且基本上垂直于磁记录介质的移动方向的尖端平面。尖端平面具有与记录轨道宽度相对应的平面与面向磁记录介质的表面之间的交点线限定的宽度。至少一个磁性膜具有用于缠绕励磁线圈的窗口。磁性膜形成在具有V形突起的非磁性保护构件上。磁头在宽频带具有优异的记录和再现特性，具有较少的摩擦噪声，高耐磨性和高生产率，并且没有伪间隙效应。通过在非磁性芯块的间隙形成平面中形成线圈绕槽的步骤制造磁头芯，与绕组槽垂直地形成多个平行的沟槽，从而产生多个V形突起在突起的表面上形成磁性膜，在磁性膜被非磁性材料涂覆之后形成间隙平面，分割该块，然后组合两个核心块，从而形成磁头芯。

3. 发明授权

US4972285A Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the same 失效
标题翻译： Co-Nb-Zr体系的非晶磁性合金和由其制成的磁头
公开(公告)号：US4972285A
公开(公告)日：1990-11-20
申请号：US217979
申请日：1988-07-12
申请人： Shigekazu Otomo , Noriyuki Kumasaka , Hideo Fujiwara , Shinji Takayama , Takeo Yamashita , Noritoshi Saito , Mitsuhiro Kudo
发明人： Shigekazu Otomo , Noriyuki Kumasaka , Hideo Fujiwara , Shinji Takayama , Takeo Yamashita , Noritoshi Saito , Mitsuhiro Kudo
IPC分类号： C22C45/04 , G11B5/127 , G11B5/245 , G11B5/31 , H01F1/153 , H01F10/12 , H01F10/13 , H01F10/16
CPC分类号： C22C45/04 , H01F1/15316
摘要： An amorphous magnetic alloy of Co-Nb-Zr system contains Co, Nb and Zr and has a composition which falls, in terms of atomic percent, within the region defined by straight lines connecting, in a ternary composition diagram assuming the total of contents of these three elements to be 100, a point (81% Co, 14% Nb, 5 Zr), a point (88% Co, 9% Nb, 3% Zr), a point (86.5% Co, 12.5% Nb, 1% Zr) and a point (81% Co, 18% Nb, 1% Zr). Disclosed also is a magnetic head having a core at least a part of which is constituted by this amorphous magnetic alloy. This magnetic head, when used in combination with a metal powder tape having a high coercive force, provides a remarkably increased recording-reproducing output.
摘要翻译： Co-Nb-Zr系的无定形磁性合金含有Co，Nb和Zr，其组成在三元组成图中以原子百分数在由直线连接的区域内下降，假定总量为这三个元素为100，点（81％Co，14％Nb，5 Zr），点（88％Co，9％Nb，3％Zr），点（86.5％Co，12.5％Nb，1 ％Zr）和点（81％Co，18％Nb，1％Zr）。还公开了一种磁头，其磁芯的至少一部分由该非晶磁性合金构成。当与具有高矫顽力的金属粉末带组合使用时，该磁头提供显着增加的记录再现输出。

4. 发明授权

US4610935A Magnetic film structure 失效
标题翻译：磁膜结构
公开(公告)号：US4610935A
公开(公告)日：1986-09-09
申请号：US571099
申请日：1984-01-16
申请人： Noriyuki Kumasaka , Hideo Fujiwara , Noritoshi Saito , Shigekazu Otomo , Takeo Yamashita , Mitsuhiro Kudo
发明人： Noriyuki Kumasaka , Hideo Fujiwara , Noritoshi Saito , Shigekazu Otomo , Takeo Yamashita , Mitsuhiro Kudo
IPC分类号： G11B5/147 , G11B5/31 , H01F10/00 , H01F10/12 , H01F10/13 , H01F10/16 , B32B15/00 , B32B15/04 , G11B5/127 , G11B5/62
CPC分类号： G11B5/3113 , G11B5/147 , H01F10/00 , Y10S428/926 , Y10S428/928 , Y10T428/1129 , Y10T428/12611 , Y10T428/12632 , Y10T428/12931 , Y10T428/12937
摘要： A magnetic film structure comprises at least one magnetic film unit wherein a plurality of main magnetic films of 0.05 to 0.5 .mu.m thickness made of a magnetic alloy containing iron or cobalt as principal constituent and having a high saturation magnetic induction of 10,000 gauss or more and a magnetostriction of 10.sup.-6 or less are laminated through intermediate magnetic films made of a magnetic material such as a nickel and iron alloy or amorphous magnetic alloy different from that of the main magnetic film and being so thin that the influence of coercive force of the intermediate magnetic film does not come out. A plurality of the magnetic film units are also laminated through non-magnetic insulating films. The magnetic film structure has high saturation magnetic induction and low coercive force.
摘要翻译：一种磁性膜结构包括至少一个磁性膜单元，其中由厚度为0.5至0.5μm的多个主磁膜由含有铁或钴作为主要成分的磁性合金制成，并且具有10,000高斯或更高的高饱和磁感应，通过与诸如镍和铁合金的磁性材料或不同于主磁性膜的非晶磁性合金制成的中间磁膜层压10-6或更小的磁致伸缩，并且薄如此薄，以致使得矫顽力的影响中间磁膜不会出来。多个磁性膜单元也通过非磁性绝缘膜层叠。磁膜结构具有高饱和磁感应和低矫顽力。

5. 发明授权

US4774616A Magnetic head having an integrated recording and playback head and an erasure head 失效
标题翻译：具有集成的记录和回放头和擦除头的磁头
公开(公告)号：US4774616A
公开(公告)日：1988-09-27
申请号：US694386
申请日：1984-12-04
申请人： Noriyuki Kumasaka , Hideo Fujiwara , Shigekazu Otomo , Takeo Yamashita , Noritoshi Saito , Mitsuhiro Kudo
发明人： Noriyuki Kumasaka , Hideo Fujiwara , Shigekazu Otomo , Takeo Yamashita , Noritoshi Saito , Mitsuhiro Kudo
IPC分类号： G11B5/31 , G11B5/265 , G11B5/16 , G11B5/22
CPC分类号： G11B5/2651 , G11B5/2655
摘要： The present invention relates to a magnetic head, which can form guard bands on a magnetic recording medium and which is especially suitable for magnetic discs, and a fabrication process thereof. The magnetic core of the present invention includes a recording and reproduction head core (31) and an erasure head core (32) which is integrally joined in series to the head core (31) for forming guard bands. Magnetic circuits are constructed of metallic magnetic materials (34), (34'), (35) and (35') formed on non-magnetic members (33) and (33'). As a result, a recording medium having high coercive forces can be recorded while the track width is reduced and the fabrication is facilitated with a high accuracy.
摘要翻译： PCT No.PCT / JP84 / 00159 Sec。 371日期1984年12月4日第 102（e）日期1984年12月4日PCT提交1984年4月2日PCT公布。公开号WO84 / 03984 日期：1984年10月11日。磁头技术领域本发明涉及一种能够在磁记录介质上形成保护带并且特别适用于磁盘的磁头及其制造方法。本发明的磁芯包括记录和再现头芯（31）和擦除头芯（32），它与头芯（31）串联成一体，用于形成防护带。磁路由形成在非磁性构件（33）和（33'）上的金属磁性材料（34），（34'），（35）和（35'）构成。结果，可以记录具有高矫顽力的记录介质，同时减小轨道宽度并且以高精度促进制造。

6. 发明授权

US4748089A Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same 失效
标题翻译：多层铁磁性非晶态合金膜及采用其的磁头
公开(公告)号：US4748089A
公开(公告)日：1988-05-31
申请号：US681261
申请日：1984-12-13
申请人： Noriyuki Kumasaka , Kazuo Shiiki , Shigekazu Otomo , Yoshihiro Shiroishi , Takeo Yamashita , Noritoshi Saito , Kiminari Shinagawa , Mitsuhiro Kudo
发明人： Noriyuki Kumasaka , Kazuo Shiiki , Shigekazu Otomo , Yoshihiro Shiroishi , Takeo Yamashita , Noritoshi Saito , Kiminari Shinagawa , Mitsuhiro Kudo
IPC分类号： H01F10/00 , G11B5/127 , G11B5/147 , G11B5/21 , G11B5/31 , H01F10/12 , H01F10/13 , H01F10/32 , H01F10/08
CPC分类号： B82Y25/00 , G11B5/1278 , G11B5/147 , G11B5/21 , G11B5/31 , H01F10/13 , H01F10/3204 , Y10S428/926 , Y10S428/928 , Y10T428/115 , Y10T428/12632 , Y10T428/12861 , Y10T428/12937 , Y10T428/12944 , Y10T428/12951
摘要： A multilayered ferromagnetic amorphous alloy film is constituted by a plurality of main ferromagnetic material alloy films of a ferromagnetic amorphous alloy laminated one upon another with a spacer ferromagnetic material layer interposed therebetween, the spacer ferromagnetic material layer being of a ferromagnetic material different from the ferromagnetic alloy. Also disclosed is a magnetic head employing the above-described multilayered film for, at least, a portion of a core thereof. The multilayered film has excellent magnetic characteristics and is easily patterned.
摘要翻译：多层铁磁性非晶态合金膜由多个铁磁性非晶合金的主要铁磁材料合金膜构成，层叠铁磁材料层彼此层叠，间隔铁磁材料层为与铁磁性合金不同的铁磁材料。还公开了使用上述多层膜至少部分其芯的磁头。多层膜具有优异的磁特性并且容易图案化。

7. 发明授权

US4571652A Magnetic recording and reproducing apparatus 失效
标题翻译：磁记录和再现设备
公开(公告)号：US4571652A
公开(公告)日：1986-02-18
申请号：US444224
申请日：1982-11-24
申请人： Hideo Fujiwara , Shigekazu Otomo , Kiminari Shinagawa , Noriyuki Kumasaka , Takeo Yamashita , Mitsuhiro Kudo , Teizo Tamura
发明人： Hideo Fujiwara , Shigekazu Otomo , Kiminari Shinagawa , Noriyuki Kumasaka , Takeo Yamashita , Mitsuhiro Kudo , Teizo Tamura
IPC分类号： G11B5/133 , G11B5/193 , G11B5/221
CPC分类号： G11B5/193 , G11B5/133
摘要： A magnetic recording and reproducing apparatus comprises a magnetic head having magnetic cores in which at least portions thereof in the vicinity of a gap are made of M.sub.n -Z.sub.n ferrite single crystal and planes of the magnetic cores forming a principal magnetic circuit are formed by {110} planes of the ferrite and directions contained in the {110} planes are inclined to a surface facing a magnetic recording medium, and means for relatively moving the magnetic recording medium in an opposite and parallel direction to a projection vector on said surface facing said recording medium, of a vector directed from a site far from the surface facing the magnetic recording medium to a site near said surface in the direction projected on the surface facing the magnetic recording medium. The present magnetic recording and reproducing apparatus exhibits both high wear resistance and excellent read/write characteristic.
摘要翻译：一种磁记录和再现装置，包括具有磁芯的磁头，其中至少部分在间隙附近由Mn-Zn铁氧体单晶构成，并且形成主磁路的磁芯的平面由{110 {110}面中包含的铁素体和<100>方向的平面相对于面向磁记录介质的表面倾斜，并且用于使磁记录介质沿与所述表面上的投影矢量相反并且平行的方向相对移动的装置面向所述记录介质的是从远离面向磁记录介质的表面的位置引导的向量朝向投影在面向磁记录介质的表面的<100>方向上的所述表面附近的位置。本磁记录和再现装置具有高耐磨性和优良的读/写特性。

8. 发明授权

US4769729A Magnetic head having ferromagnetic amorphous alloy multi-layered film 失效
标题翻译：磁头具有铁磁性非晶合金多层膜
公开(公告)号：US4769729A
公开(公告)日：1988-09-06
申请号：US872287
申请日：1986-06-10
申请人： Noriyuki Kumasaka , Shigekazu Otomo , Takeo Yamashita , Noritoshi Saito
发明人： Noriyuki Kumasaka , Shigekazu Otomo , Takeo Yamashita , Noritoshi Saito
IPC分类号： G11B5/127 , G11B5/133 , G11B5/147 , G11B5/23 , H01F10/12 , H01F10/13 , H01F10/30 , G11B5/16
CPC分类号： G11B5/147 , G11B5/127
摘要： A magnetic head includes ferromagnetic amorphous alloy multi-layer films each composed of an alternate lamination of ferromagnetic amorphous alloy layers and magnetic spacer layers. The thickness of each ferromagnetic amorphous alloy layer is of 1 .mu.m to 10 .mu.m. The thickness of each magnetic spacer layer is of 0.01 .mu.m to 0.2 .mu.m. The ferromagnetic amorphous alloy multi-layer films constitute at least parts of the head core.
摘要翻译：磁头包括铁磁非晶合金多层膜，每层由铁磁性非晶合金层和磁性间隔层的交替叠层构成。每个铁磁非晶合金层的厚度为1μm至10μm。每个磁性间隔层的厚度为0.01μm至0.2μm。铁磁非晶合金多层膜构成头芯的至少一部分。

9. 发明授权

US5463518A Magnetic head and magnetic recording and reproducing apparatus using a superconducting quantum interference device 失效
标题翻译：使用超导量子干涉装置的磁头和磁记录和再现装置
公开(公告)号：US5463518A
公开(公告)日：1995-10-31
申请号：US673866
申请日：1991-03-22
申请人： Shigekazu Otomo , Noriyuki Kumasaka , Kazuo Shiiki , Takeo Yamashita , Noritoshi Saito , Yoshinobu Tarutani
发明人： Shigekazu Otomo , Noriyuki Kumasaka , Kazuo Shiiki , Takeo Yamashita , Noritoshi Saito , Yoshinobu Tarutani
IPC分类号： G01R33/035 , G11B5/00 , G11B5/127 , G11B5/31 , G11B5/33 , G11B5/40 , G11B5/53 , G11B33/14 , G11B5/147 , G01C21/08 , G01R33/02
CPC分类号： G11B5/1278 , G01R33/0358 , G11B5/00 , G11B5/31 , G11B5/313 , G11B5/3143 , G11B5/332 , G11B5/40 , G11B5/53 , G11B33/14 , Y10S505/843
摘要： A magnetic head has a superconducting quantum interference device having a ring made of a superconductive material including a Josephson junction which links to a magnetic flux generated by a magnetic recording medium, and a magnetic pole for guiding the magnetic flux generated by the magnetic recording medium or the ring made of a superconductive material arranged in parallel to a plane of the magnetic recording medium so that the magnetic flux generated by the magnetic recording medium flows into a through-hole of the ring. A magnetic recording and reproducing apparatus includes such a magnetic head, a winding to which a reproduced signal from the magnetic head is applied and the superconductive ring including the Josephson junction arranged such that the magnetic flux generated by the winding flows thereto.
摘要翻译：磁头具有超导量子干涉装置，其具有由超导材料制成的环，该超导材料包括与由磁记录介质产生的磁通相关联的约瑟夫逊结，以及用于引导由磁记录介质产生的磁通的磁极或由与磁记录介质的平面平行布置的超导材料制成的环，使得由磁记录介质产生的磁通流入环的通孔。磁记录和再现装置包括这样的磁头，施加来自磁头的再现信号的绕组和包括约瑟夫逊结的超导环，其布置成使得由绕组产生的磁通量流向其。

10. 发明授权

US4847715A Magnetic head having short distance between gaps for recording reproducing and erasing 失效
标题翻译：用于记录再现和擦除的间隙之间具有短距离的磁头
公开(公告)号：US4847715A
公开(公告)日：1989-07-11
申请号：US941648
申请日：1986-12-15
申请人： Noriyuki Kumasaka , Shigekazu Otomo , Takeo Yamashita , Noritoshi Saito
发明人： Noriyuki Kumasaka , Shigekazu Otomo , Takeo Yamashita , Noritoshi Saito
IPC分类号： G11B5/265
CPC分类号： G11B5/2655
摘要： A tunnel erasing-type magnetic head having a short distance between the gaps, wherein a second core half is sandwiched between the first core half and the third core half, a magnetic gap for recording and reproducing the signals is formed between the first core half and the second core half, and a magnetic gap for erasing is formed between the second core half and the third core half, so that the second core half can be utilized for both recording and reproducing the signals and erasing the signals. The second core half is obtained by forming a thin magnetic film of a high saturation flux density on the base portion composed of a nonmagnetic material that forms the magnetic gap. The first and third core halves are also obtained by forming a thin magnetic film of a high saturation flux density on the magnetic gap surfaces of the base portions to produce performance that can be used for the magnetic recording media having high coercive force. The magnetic head has a short distance between the gaps. When used for a floppy disk apparatus, therefore, there does not develop under-erasing or over-erasing even for small disks, and the effective track width does not decrease, either. This head can be used also as the one in which an ordinary erasing head element and a recording and reproducing head element are combined together.
摘要翻译：一种在间隙之间具有短距离的隧道擦除型磁头，其中第二芯体半部夹在第一芯部半部和第三芯部半部之间，用于记录和再生信号的磁隙形成在第一芯部半部和第二磁芯半部和用于擦除的磁隙形成在第二磁芯半部和第三磁芯半部之间，使得第二磁芯半部可以用于记录和再现信号并擦除信号。通过在由形成磁隙的非磁性材料构成的基部上形成具有高饱和磁通密度的薄磁膜来获得第二芯体半部。通过在基部的磁隙表面上形成具有高饱和磁通密度的薄磁膜也可获得第一和第三半芯，以产生可用于具有高矫顽磁力的磁记录介质的性能。磁头在间隙之间具有短距离。因此，当用于软盘设备时，即使对于小盘也不会发生欠擦除或过度擦除，并且有效轨道宽度也不会降低。该头也可以用作将普通擦除头元件和记录和再现头元件组合在一起的头。

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