公开(公告)号：US06665143B2

公开(公告)日：2003-12-16

申请号：US09810187

申请日：2001-03-19

申请人： Hiroaki Yoda ,  Yuichi Osawa ,  Tomomi Funayama

发明人： Hiroaki Yoda ,  Yuichi Osawa ,  Tomomi Funayama

IPC分类号： G11B5127

CPC分类号： G11B5/3925 ,  G11B5/00 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/3116 ,  G11B2005/0002 ,  G11B2005/0021 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49055 ,  Y10T29/49067

摘要： There is provided a magnetic head capable of efficiently carrying out a recording or reproducing operation even in the case of a shorter magnetic path length and a shorter wavelength signal. The magnetic head comprises: a pair of magnetic bodies including respective first and second medium facing surfaces, respective first and second rear surfaces opposite to the medium facing surfaces, and respective inner side surfaces, the inner side surfaces facing each other; and a magnetic gap disposed between the inner side surfaces and including third medium facing surface coplanar with the first and the second medium facing surfaces and third rear surface coplanar with the first and second rear surfaces; one of the inner side surfaces satisfying relationships of x=G1 /2 with respect to 0≦y≦TH, and 0.1·tan{2(x−G1 /2)}+TH≦y≦5·tan(2(x−G1/2))+TH with respect to TH≦y where x represents X-coordinate of the one of the inner side surfaces and y represents Y-coordinate of the one of the inner side surfaces, the X-axis extends from a center of the third medium facing surface toward a center of the first or the second medium facing surface, the Y-axis extends from the center of the third medium facing surface toward the third rear surface, the Y-axis is substantially perpendicular to the X-axis, and G1 and TH respectively represent constants.

摘要翻译： 即使在较短的磁路长度和较短的波长信号的情况下，也能够有效地执行记录或重放操作的磁头。 磁头包括：一对磁体，包括相应的第一和第二介质面对表面，与介质相对表面相对的相应的第一和第二后表面，以及相应的内侧表面，内侧表面彼此相对; 以及设置在所述内侧表面之间并且包括与所述第一和第二介质相对表面共面的第三介质面对表面和与所述第一和第二后表面共面的第三后表面的磁隙; 内侧表面满足关系的其中一个表示内侧表面之一的X坐标，y表示内侧表面之一的Y坐标，X轴从第三介质的中心朝向 面朝向第一或第二介质面向表面的中心，Y轴从第三介质相对表面的中心朝向第三后表面延伸，Y轴基本上垂直于X轴，并且G1和 TH分别表示常数。

公开(公告)号：US06606225B1

公开(公告)日：2003-08-12

申请号：US09583575

申请日：2000-05-31

申请人： Tomomi Funayama ,  Yuichi Osawa ,  Masatoshi Yoshikawa ,  Hiroaki Yoda

发明人： Tomomi Funayama ,  Yuichi Osawa ,  Masatoshi Yoshikawa ,  Hiroaki Yoda

IPC分类号： G11B5127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/3183 ,  G11B5/3903 ,  G11B5/3925 ,  G11B2005/3996

摘要： The objective of this invention is to provide a yoke-type magnetic head and a magnetic recording device in which Barkhausen noise is low. It is possible to induce a magnetic flux efficiently within a magnetic head by using a granular magnetic film that exhibits both soft magnetic properties and a high resistance, which suppresses any shunt of the flow of the sense current into the magnetic yokes, thus preventing any deterioration insensitivity. Since this means that eddy currents can be suppressed, even during use in high-frequency regions, the frequency response characteristics are also improved. In addition, since the magnetic grains within the granular magnetic film are nano-sized, the dimensions of magnetic domains therein are also miniaturized to match that size, and thus there is also substantially no movement of the magnetic domain walls and this miniaturization also makes it possible to suppress the generation of Barkhausen noise. A similar effect can also be obtained by inducing maze domains within the magnetic yokes.

摘要翻译： 本发明的目的是提供一种轭型磁头和一种其中巴克豪森噪声低的磁记录装置。 通过使用表现出软磁性能和高电阻的粒状磁性膜，能够有效地在磁头内引起磁通，这抑制了磁轭中感应电流流动的任何分流，从而防止任何劣化 不敏感。 由于这意味着即使在高频区域使用时也能够抑制涡流，所以也提高了频率响应特性。 此外，由于粒状磁性膜内的磁性粒子是纳米尺寸的，因此其中的磁畴的尺寸也小型化以与该尺寸相匹配，因此也基本上没有磁畴壁的移动，并且这种小型化也使得它 可能抑制巴克豪森噪音的产生。 通过诱导磁轭内的迷宫结构也可以获得类似的效果。

公开(公告)号：US06333840B1

公开(公告)日：2001-12-25

申请号：US09270681

申请日：1999-03-16

申请人： Hiroaki Yoda ,  Tadahiko Kobayashi ,  Kohichi Tateyama ,  Hiromi Sakata

发明人： Hiroaki Yoda ,  Tadahiko Kobayashi ,  Kohichi Tateyama ,  Hiromi Sakata

IPC分类号： G11B5127

CPC分类号： B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3903 ,  G11B5/3967 ,  G11B20/10

摘要： There is provided a magnetic recording apparatus capable of carrying out signal reproduction with high accuracy by using a narrow gap head structure corresponding to high recording density. An asymmetric gap structure MR head includes a magnetoresistance element 26 having a magnetoresistance film 24 and a pair of electrodes 25 disposed at the upper side; a reproducing magnetic gap film 23 disposed only at the lower side of the magnetoresistance element 26; a magnetic shielding film 22 disposed so as to make a laminate with the magnetoresistance element 26 through the reproducing magnetic gap film 23; and an insulating film 27 disposed at the upper side of the magnetoresistance element 26. When a signal is read by use of such a reproducing head, the signal of the present bit is read by subtracting a value obtained by multiplying signals of a plurality of previous bits by predetermined coefficients from the present reproduction signal. As another reproduction signal processing system, a partial response system is adopted.

摘要翻译： 提供了一种能够通过使用对应于高记录密度的窄间隙头结构以高精度执行信号再现的磁记录装置。 非对称间隙结构MR头包括具有磁阻膜24和设置在上侧的一对电极25的磁阻元件26。 设置在磁阻元件26的下侧的再现磁隙膜23; 设置成通过再现磁隙膜23与磁阻元件26层叠的磁屏蔽膜22; 以及设置在磁阻元件26的上侧的绝缘膜27.当通过使用这种再现头读取信号时，通过减去通过将多个先前的信号乘以信号而获得的值来读取当前位的信号 比特由来自当前再现信号的预定系数。 作为另一再现信号处理系统，采用部分响应系统。

公开(公告)号：US6139745A

公开(公告)日：2000-10-31

申请号：US860244

申请日：1997-06-13

申请人： Takashi Mizumori ,  Koichi Tsuzuki ,  Junichi Kobayashi ,  Takeo Takagi ,  Hiroaki Yoda ,  Kazuo Kobayashi

发明人： Takashi Mizumori ,  Koichi Tsuzuki ,  Junichi Kobayashi ,  Takeo Takagi ,  Hiroaki Yoda ,  Kazuo Kobayashi

IPC分类号： C02F3/08 ,  C02F3/12 ,  C02F9/00 ,  C02F1/74

CPC分类号： C02F3/085 ,  C02F2103/007 ,  Y02W10/15 ,  Y02W10/37

摘要： A purification apparatus and method for enabling the purification of the lake and pond waters, is installed as a fluidized bed sewage system directly on the raw water area. The apparatus takes in the raw waters in the lake and pond and purifies the water. The purified water is fed back to the raw water area by the pump.With this purification apparatus, the salt materials such as phosphate in the lakes, and the overall area of the waters can be purified while preventing the generation of phytoplanktons.

摘要翻译： PCT No.PCT / JP95 / 02537第 371日期：1997年6月13日 102（e）日期1997年6月13日PCT提交1995年12月12日PCT公布。 第WO96 / 18581号公报 日期1996年6月20日一种用于净化湖泊和池塘水的净化装置和方法，直接作为流化床污水系统安装在原水区域。 该装置吸收湖泊和池塘的原水，净化水。 净化水通过泵反馈到原水区域。 利用这种净化装置，可以在防止浮游植物的产生的同时净化湖中的盐物质和水的总面积。

公开(公告)号：US6061211A

公开(公告)日：2000-05-09

申请号：US998220

申请日：1997-12-24

申请人： Hiroaki Yoda ,  Masashi Sahashi

发明人： Hiroaki Yoda ,  Masashi Sahashi

IPC分类号： G01R33/09 ,  G11B5/31 ,  G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3143 ,  G11B5/3903 ,  G11B5/3906 ,  G11B5/3967 ,  G11B2005/3996

摘要： A magnetic sensor comprises a pair of hard magnetic films magnetized inplane in directions substantially perpendicular to the direction of a signal magnetic field and substantially equal to each other, a soft magnetic film formed in the same plane as the pair of hard magnetic films and interposed between the pair of hard magnetic films and held in contact therewith or in proximity thereto, and a signal magnetic field detecting film superposed on the main surface of the soft magnetic film. A magnetic recording-reproducing head using this reproducing head comprises the reproducing head mentioned above, a pair of magnetic pole layers vertically opposed to each other through the medium of a recording gap, and a recording head possessed of a recording track width equal to or smaller than the reproducing track width of the reproducing head. The reproducing track width L.sub.1 is so set as to satisfy the relation, L.sub.2 .ltoreq.L.sub.1

摘要翻译： 磁传感器包括一对在与信号磁场方向基本垂直的方向上被磁化成平面的硬磁膜，并且基本上彼此相等，形成在与该对硬磁膜相同的平面内的软磁膜，并且介于 所述一对硬磁性膜与所述一对硬磁膜保持接触或接近，以及叠加在所述软磁膜的主表面上的信号磁场检测膜。 使用该再现头的磁记录再现头包括上述再现头，通过记录间隙的介质彼此垂直相对的一对磁极层，以及具有等于或小于其的记录轨道宽度的记录头 比再现头的再现轨道宽度。 再现轨道宽度L1被设定为满足L2

公开(公告)号：US5633771A

公开(公告)日：1997-05-27

申请号：US314508

申请日：1994-09-28

申请人： Hiroaki Yoda ,  Atsuhito Sawabe ,  Hitoshi Iwasaki ,  Naoyuki Inoue ,  Akio Hori

发明人： Hiroaki Yoda ,  Atsuhito Sawabe ,  Hitoshi Iwasaki ,  Naoyuki Inoue ,  Akio Hori

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/265 ,  G11B5/127 ,  G11B5/29 ,  G11B5/33

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3929 ,  G11B5/3967 ,  G11B2005/3996 ,  G11B5/3116 ,  G11B5/3163

摘要： A magnetoresistance effect type head comprises a magnetoresistance effect film having a pair of leads connected thereto and possessing a magnetic field responding part and a pair of upper and lower shield layers having a magnetoresistance effect type head satisfies the relations, W.sub.s

摘要翻译： 磁阻效应型头包括具有连接到其上并具有磁场响应部分的一对引线的磁阻效应膜和具有磁阻效应型头的一对上下屏蔽层满足关系Ws

公开(公告)号：US5345786A

公开(公告)日：1994-09-13

申请号：US109445

申请日：1993-08-20

申请人： Hiroaki Yoda ,  Kenzi Machizawa ,  Koji Yamamoto

发明人： Hiroaki Yoda ,  Kenzi Machizawa ,  Koji Yamamoto

IPC分类号： F25B15/02 ,  F25B27/02 ,  H01M8/04 ,  H01M8/06 ,  F25B15/00 ,  F24J1/00

CPC分类号： F25B15/02 ,  F25B27/02 ,  H01M8/04029 ,  H01M8/0612 ,  Y02B30/52 ,  Y02B30/625

摘要： An absorption heat pump and a cogeneration system are provided to have high efficiency of utilizing exhaust heat. An absorption heat pump having an evaporator, an absorber, a high-temperature regenerator, a low-temperature regenerator and a condenser is combined with a fuel cell such that the pump includes a cycle in which vapor exhaust heat from the fuel cell is used as a heat source for the evaporator and the high-temperature regenerator, and another cycle in which warm-water exhaust heat from the fuel cell is used as a heat source for the low-temperature regenerator.

摘要翻译： 提供吸收热泵和热电联产系统以具有高效利用废热。 具有蒸发器，吸收器，高温再生器，低温再生器和冷凝器的吸收式热泵与燃料电池组合，使得泵包括使用来自燃料电池的蒸气排出热量的循环， 用于蒸发器和高温再生器的热源，以及来自燃料电池的温水排出热量的另一循环用作低温再生器的热源。

公开(公告)号：US09570671B2

公开(公告)日：2017-02-14

申请号：US14479192

申请日：2014-09-05

申请人： Masatoshi Yoshikawa ,  Hiroaki Yoda ,  Shuichi Tsubata ,  Kenji Noma ,  Tatsuya Kishi ,  Satoshi Seto ,  Kazuhiro Tomioka

发明人： Masatoshi Yoshikawa ,  Hiroaki Yoda ,  Shuichi Tsubata ,  Kenji Noma ,  Tatsuya Kishi ,  Satoshi Seto ,  Kazuhiro Tomioka

IPC分类号： H01L43/02 ,  H01L43/08 ,  H01L43/12

CPC分类号： H01L43/02 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12

摘要： According to one embodiment, a magnetic memory device includes a stacked structure including a magnetic element, a protective insulating film covering the stacked structure, and an interface layer provided at an interface between the stacked structure and the protective insulating film. The interface layer contains a predetermined element which is not contained in the magnetic element or the protective insulating film.

摘要翻译： 根据一个实施例，磁存储器件包括堆叠结构，其包括磁性元件，覆盖层叠结构的保护绝缘膜以及设置在堆叠结构和保护绝缘膜之间的界面处的界面层。 界面层包含不包含在磁性元件或保护绝缘膜中的预定元件。

公开(公告)号：US09293695B2

公开(公告)日：2016-03-22

申请号：US14160166

申请日：2014-01-21

申请人： Koji Ueda ,  Toshihiko Nagase ,  Kazuya Sawada ,  Youngmin Eeh ,  Daisuke Watanabe ,  Hiroaki Yoda

发明人： Koji Ueda ,  Toshihiko Nagase ,  Kazuya Sawada ,  Youngmin Eeh ,  Daisuke Watanabe ,  Hiroaki Yoda

IPC分类号： H01L43/00 ,  H01L43/08 ,  H01L27/22

CPC分类号： H01L43/10 ,  H01L27/228 ,  H01L43/02 ,  H01L43/08

摘要： According to one embodiment, a magnetoresistive element comprises a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, a second nonmagnetic layer, and a third magnetic layer. The first magnetic layer has a variable magnetization direction. The second magnetic layer has an invariable magnetization direction and includes a nonmagnetic material film and a magnetic material film. The first nonmagnetic layer is arranged between the first magnetic layer and the second magnetic layer. The second nonmagnetic layer is arranged on a surface of the second magnetic layer. The third magnetic layer is arranged on a surface of the second nonmagnetic layer. The second nonmagnetic layer is in contact with the nonmagnetic material film included in the second magnetic layer.

摘要翻译： 根据一个实施例，磁阻元件包括第一磁性层，第二磁性层，第一非磁性层，第二非磁性层和第三磁性层。 第一磁性层具有可变的磁化方向。 第二磁性层具有不变的磁化方向，并且包括非磁性材料膜和磁性材料膜。 第一非磁性层布置在第一磁性层和第二磁性层之间。 第二非磁性层布置在第二磁性层的表面上。 第三磁性层布置在第二非磁性层的表面上。 第二非磁性层与包含在第二磁性层中的非磁性材料膜接触。

公开(公告)号：US09184374B2

公开(公告)日：2015-11-10

申请号：US13963762

申请日：2013-08-09

申请人： Kazuya Sawada ,  Toshihiko Nagase ,  Youngmin Eeh ,  Koji Ueda ,  Daisuke Watanabe ,  Masahiko Nakayama ,  Tadashi Kai ,  Hiroaki Yoda

发明人： Kazuya Sawada ,  Toshihiko Nagase ,  Youngmin Eeh ,  Koji Ueda ,  Daisuke Watanabe ,  Masahiko Nakayama ,  Tadashi Kai ,  Hiroaki Yoda

IPC分类号： H01L29/82 ,  H01L43/08 ,  H01L43/10

CPC分类号： H01L43/08 ,  H01L43/10

摘要： According to one embodiment, a magnetoresistive element includes first, second and third magnetic layers, and first and second nonmagnetic layers. The third magnetic layer has stack layers including a first stack layer close to the second magnetic layer, and a second stack layer far from the second magnetic layer. Each of the first and second stack layers includes a first layer made of a ferromagnetic material and a second layer made of a nonmagnetic material, and a first ratio of a film thickness of the first layer to that of the second layer in the first stack layer is higher than a second ratio of a film thickness of the first layer to that of the second layer in the second stack layer.

摘要翻译： 根据一个实施例，磁阻元件包括第一，第二和第三磁性层以及第一和第二非磁性层。 第三磁性层具有包括靠近第二磁性层的第一堆叠层和远离第二磁性层的第二堆叠层的堆叠层。 第一和第二堆叠层中的每一个包括由铁磁材料制成的第一层和由非磁性材料制成的第二层，并且第一层的第一层的膜厚度与第二层的膜厚度的第一比率 高于第二层的第一层的膜厚度与第二层的膜厚度的第二比率。