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1. 发明授权

US4766039A Magnetic head made from amorphous magnetic film 失效
标题翻译：磁头由非晶磁性膜制成
公开(公告)号：US4766039A
公开(公告)日：1988-08-23
申请号：US875222
申请日：1986-06-17
申请人： Shigekazu Otomo , Noriyuki Kumasaka , Noritoshi Saito , Takeo Yamashita , Kazuo Shiiki , Yoshihiro Hamakawa
发明人： Shigekazu Otomo , Noriyuki Kumasaka , Noritoshi Saito , Takeo Yamashita , Kazuo Shiiki , Yoshihiro Hamakawa
IPC分类号： G11B5/11 , G11B5/127 , G11B5/147 , G11B5/31 , G11B5/39 , H01F10/12 , H01F10/13 , H01F10/16
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/147 , G11B5/31 , G11B5/39 , Y10S428/90
摘要： A magnetic head comprising a magnetic film in at least a part of a magnetic circuit, at least a part of the magnetic film being formed in contact with, or being exposed to, an oxide or oxygen at least in a heating step at 150.degree. C. or higher in a process for preparing the magnetic head is disclosed. An amorphous alloy film for the magnetic film has the following composition formula to give distinguished head characteristics without any oxidation:Co.sub.a T.sub.b Zr.sub.c N.sub.dwhere T is at last one of Nb, Ta, W, Mo, V and Cr; N is at least one of Au, Pt and Ag; d.gtoreq.1, b>0, b.sub.1 +b.sub.2 +2c.gtoreq.10, a+d.gtoreq.80, -1.ltoreq.(3c-b.sub.1 -3b.sub.2 -5b.sub.3 -3b.sub.4 -4d)/(c+b.sub.1 +b.sub.2 +b.sub.3 +b.sub.4 +d).ltoreq.1, and a+b+c+d=100, where b.sub.1 is a Nb concentration, b.sub.2 is a Ta concentration, b.sub.3 is a W concentration, b.sub.4 is sum total of Mo, Cr and V concentrations and b=b.sub.1 +b.sub.2 +b.sub.3 +b.sub.4.
摘要翻译：磁头包括至少一部分磁路中的磁性膜，至少一部分磁性薄膜至少在150℃的加热步骤中与氧化物或氧气接触或暴露于氧化物或氧气中公开了一种用于制备磁头的方法。用于磁性膜的非晶态合金膜具有以下组成式，可以得到无特殊的头部特性：没有任何氧化：CoaTbZrcNd，其中T是Nb，Ta，W，Mo，V和Cr中的最后一个; N是Au，Pt和Ag中的至少一种; d> / = 1，b> 0，b1 + b2 + 2c> / = 10，a + d> / = 80，-1（3c-b1-3b2-5b3-3b4-4d）/（c + b1 + b2 + b3 + b4 + d）

2. 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。

3. 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。

4. 发明授权

US4814921A Multilayered magnetic films and thin-film magnetic heads using the same as a pole 失效
标题翻译：使用与极相同的多层磁性膜和薄膜磁头
公开(公告)号：US4814921A
公开(公告)日：1989-03-21
申请号：US150504
申请日：1988-02-01
申请人： Yoshihiro Hamakawa , Kazuo Shiiki , Yoshihiro Shiroishi , Isamu Yuitoo , Hitoshi Numasaka , Noriyuki Kumasaka , Shigekazu Otomo , Eijin Moriwaki
发明人： Yoshihiro Hamakawa , Kazuo Shiiki , Yoshihiro Shiroishi , Isamu Yuitoo , Hitoshi Numasaka , Noriyuki Kumasaka , Shigekazu Otomo , Eijin Moriwaki
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： G11B5/31
摘要： Multilayered magnetic films of the invention comprising at least two unit magnetic films each of which has a thickness of from 0.05 to 0.9 .mu.m and includes a plurality of ferromagnetic layers each having a thickness of from 0.01 to 0.2 .mu.m and a 1 nm to 10 nm thick first intermediate layer consisting of a ferromagnetic, nonmagnetic or antiferromagnetic material and provided between adjacent ferromagnetic layers, and a second intermediate layer having a thickness of from 10 to 40 nm, consisting of a nonmagnetic or antiferromagnetic material and provided between the at least two unit magnetic films. The multilayered magnetic film is suitable as a pole of a thin-film magnetic head. An underlayer may be further provided between the magnetic film and a substrate whereby a multilayered magnetic film having good characteristics can be obtained.
摘要翻译：本发明的多层磁性膜包括至少两个单元磁性膜，每个单元磁性膜的厚度为0.05至0.9μm，并且包括多个铁磁层，每个铁磁层的厚度为0.01至0.2μm，1nm至10nm nm厚的第一中间层，由铁磁性，非磁性或反铁磁性材料构成，并且设置在相邻的铁磁层之间，以及厚度为10至40nm的第二中间层，由非磁性或反铁磁材料组成，并且设置在所述至少两个单位磁膜。多层磁性膜适合作为薄膜磁头的磁极。可以在磁性膜和基板之间进一步设置底层，由此可以获得具有良好特性的多层磁性膜。

5. 发明授权

US4943879A Thin film magnetic head including magnetic layers having high saturation magnetic flux density and metal film for avoiding deterioration during manufacturing 失效
标题翻译：薄膜磁头包括具有高饱和磁通密度的磁性层和用于避免制造过程中的劣化的金属膜
公开(公告)号：US4943879A
公开(公告)日：1990-07-24
申请号：US085719
申请日：1987-08-17
申请人： Hisashi Takano , Yoshihiro Hamakawa , Kazuo Shiiki , Shigekazu Otomo , Noriyuki Kumasaka
发明人： Hisashi Takano , Yoshihiro Hamakawa , Kazuo Shiiki , Shigekazu Otomo , Noriyuki Kumasaka
IPC分类号： G11B5/31
CPC分类号： G11B5/3163 , G11B5/3133
摘要： A thin film magnetic head having a first magnetic layer of a saturation magnetic flux density greater than that of a Ni-Fe alloy and a second magnetic layer of a saturation magnetic flux density grater than that of a Ni-Fe alloy supported by a base layer, the magnetic layers for forming a magnetic core of the head with a non-magnetic material gap layer interposed therebetween, and an electrically insulating layer provided between the magnetic layers so that turns of coil wound about the magnetic core are partly formed in electrically insulated relation within the insulating layer, in which a metal film is provided between the first magnetic layer and the electrically insulating layer so that the electrically insulating layer does not contact with the first magnetic layer and/or another metal film is formed on the second magnetic layer so that the other metal layer is sandwiched between the non-magnetic layer and the second magnetic layer.
摘要翻译：一种薄膜磁头，其具有大于Ni-Fe合金的饱和磁通密度的第一磁性层和比由基底层支撑的Ni-Fe合金的饱和磁通密度分布的第二磁性层用于形成具有介于其间的非磁性材料间隙层的头部的磁芯的磁性层和设置在磁性层之间的电绝缘层，使得缠绕在磁芯上的线圈的匝部分地形成为电绝缘关系在绝缘层内，在第一磁性层和电绝缘层之间设有金属膜，使得电绝缘层不与第一磁性层接触和/或在第二磁性层上形成另一金属膜，因此另一个金属层夹在非磁性层和第二磁性层之间。

6. 发明授权

US4762755A Ferromagnetic material and a magnetic head using the same material 失效
标题翻译：铁磁材料和磁头使用相同的材料
公开(公告)号：US4762755A
公开(公告)日：1988-08-09
申请号：US665911
申请日：1984-10-29
申请人： Kazuo Shiiki , Noriyuki Kumasaka , Yoshihiro Shiroishi , Hitoshi Nakamura , Yoshihiro Hamakawa , Noritoshi Saito , Shigeo Aoki , Kiminari Shinagawa , Mitsuhiro Kudo
发明人： Kazuo Shiiki , Noriyuki Kumasaka , Yoshihiro Shiroishi , Hitoshi Nakamura , Yoshihiro Hamakawa , Noritoshi Saito , Shigeo Aoki , Kiminari Shinagawa , Mitsuhiro Kudo
IPC分类号： C22C38/02 , G11B5/127 , G11B5/21 , G11B5/31 , H01F1/147 , H01F10/14 , B32B1/04
CPC分类号： H01F1/14766 , C22C38/02 , G11B5/1278 , G11B5/21 , G11B5/31 , H01F10/145 , H01F10/265 , Y10S428/928 , Y10T428/115 , Y10T428/12632 , Y10T428/12937 , Y10T428/12951
摘要： A ferromagnetic material is composed of an iron alloy which contains 2 to 12% by weight of silicon and 5 to 25% by weight of at least one element selected from the group consisting of ruthenium, rhodium, palladium, iridium, platinum, gold and silver. This ferromagnetic material exhibits a high saturation flux density and good corrosion resistance. Excellent magnetic characteristics are obtained by a multilayered film which is obtained by alternatingly laminating the above ferromagnetic material and a spacer layer composed of other material. Further, a markedly increased recording density is exhibited by a magnetic head for perpendicular magnetic recording, when the end of the main pole is composed of the ferromagnetic material.
摘要翻译：铁磁材料由含有2〜12重量％的硅和5〜25重量％的选自钌，铑，钯，铱，铂，金和银中的至少一种元素的铁合金构成。该铁磁材料表现出高的饱和磁通密度和良好的耐腐蚀性。通过交替层叠上述铁磁材料和由其它材料构成的间隔层获得的多层膜获得优异的磁特性。此外，当主极的端部由铁磁材料构成时，用于垂直磁记录的磁头显示出显着增加的记录密度。

7. 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。

8. 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。

9. 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。

10. 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。

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