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71. 发明申请

US20130083595A1 MAGNETIC MEMORY AND MANUFACTURING METHOD THEREOF 有权
标题翻译：磁记忆及其制造方法
公开(公告)号：US20130083595A1
公开(公告)日：2013-04-04
申请号：US13425471
申请日：2012-03-21
申请人： Shiho Nakamura , Tsuyoshi Kondo , Hirofumi Morise , Junichi Akiyama
发明人： Shiho Nakamura , Tsuyoshi Kondo , Hirofumi Morise , Junichi Akiyama
IPC分类号： G11C11/14 , H01L21/8246
CPC分类号： G11C19/0808 , G11C11/161 , G11C11/1675
摘要： A magnetic memory includes a first magnetic line, an electrode, a write-in portion, a second magnetic line, and a spin-wave generator. The first magnetic line has a plurality of magnetic domains and domain walls, the domain wall separating the magnetic domain. The electrode is provided to both ends of the first magnetic line. The write-in portion is provided adjacent to the first magnetic line. The second magnetic line is provided so that the second magnetic line intersects with the first magnetic line. The spin-wave generator provided to one end of the second magnetic line. The spin-wave detector provided to the other end of the second magnetic line.
摘要翻译：磁存储器包括第一磁线，电极，写入部分，第二磁线和自旋波发生器。第一磁线具有多个磁畴和畴壁，畴壁分离磁畴。电极设置在第一磁力线的两端。写入部分设置成与第一磁线相邻。第二磁线被设置成使得第二磁线与第一磁线相交。提供给第二磁线的一端的自旋波发生器。旋转波检测器设置在第二磁线的另一端。

72. 发明授权

US07602693B2 Data recording apparatus 失效
标题翻译：数据记录装置
公开(公告)号：US07602693B2
公开(公告)日：2009-10-13
申请号：US11515397
申请日：2006-09-05
申请人： Junichi Akiyama
发明人： Junichi Akiyama
IPC分类号： G11B9/00
CPC分类号： G11B9/08
摘要： A data recording apparatus includes a recording medium which includes a semiconductor substrate, a first insulating layer formed on one surface of the substrate, a second insulating layer formed on the first insulating layer and is made to accumulate electric charge, an electrode layer formed on the other surface, and an insulating area which penetrates the insulating layers; and an electrode which applies a voltage to the medium. A depth from an interface between the substrate and the first insulating layer to the bottom of the insulating area is more than a maximum depth of a depletion layer, Wmax represented by Wmax=√{square root over (2∈0∈i×2|φf|/qNd)} where ∈0, ∈i, |φf|, q, and Nd are a dielectric constant of vacuum, a relative dielectric constant, an absolute value of the Felmi potential of the substrate, an electric charge of an electron, and an impurity concentration of the substrate, respectively.
摘要翻译：一种数据记录装置，包括：记录介质，包括半导体衬底，形成在所述衬底的一个表面上的第一绝缘层，形成在所述第一绝缘层上并被制成电荷的第二绝缘层;形成在所述第一绝缘层上的电极层其它表面和穿透绝缘层的绝缘区域; 以及向介质施加电压的电极。从衬底和第一绝缘层到绝缘区域的底部之间的界面的深度大于耗尽层的最大深度，Wmax由Wmax =√{平方根超过（2∈0∈ix2| phif | / qNd）}其中∈0，∈i，| phif |，q和Nd是真空的介电常数，相对介电常数，基板的Felmi电位的绝对值，电子的电荷，以及分别是基板的杂质浓度。

73. 发明授权

US07054087B2 Magnetic recording-reproducing apparatus 有权
标题翻译：磁记录再现装置
公开(公告)号：US07054087B2
公开(公告)日：2006-05-30
申请号：US10944882
申请日：2004-09-21
申请人： Tadashi Kai , Akira Kikitsu , Toshihiko Nagase , Tomoyuki Maeda , Junichi Akiyama
发明人： Tadashi Kai , Akira Kikitsu , Toshihiko Nagase , Tomoyuki Maeda , Junichi Akiyama
IPC分类号： G11B5/02 , G11B5/66
CPC分类号： G11B5/7325 , G11B5/00 , G11B5/012 , G11B5/127 , G11B5/64 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording-reproducing apparatus has a magnetic recording medium having a nonmagnetic substrate, and a functional layer and a recording layer formed on the nonmagnetic substrate, the recording layer exhibiting a magnetic anisotropy energy density KuRL, the functional layer developing ferromagnetism upon irradiation with light so as to exhibit a magnetic anisotropy energy density KuFL lower than the magnetic anisotropy energy density KuRL and the functional layer serving to lower the magnetic anisotropy energy density of the recording layer through exchange coupling interaction with the recording layer when the functional layer is irradiated with light, a light source which irradiates the functional layer with light, and a magnetic head having a writing head writing signal magnetization by applying a magnetic field to the recording layer and a reading head reading the signal magnetization recorded in the recording layer.
摘要翻译：磁记录再现装置具有磁记录介质，其具有非磁性基板，以及在非磁性基板上形成的功能层和记录层，所述记录层呈现磁各向异性能量密度Ku <！ - SIPO 的功能层，而功能层用于降低当功能层被光照射时通过与记录层的交换耦合相互作用的记录层的磁各向异性能量密度，用光照射功能层的光源以及具有写入头写入信号磁化的磁头通过施加记录层的磁场和读取记录在记录层中的信号磁化的读取头。

74. 发明授权

US06795380B2 Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus 有权
标题翻译：光辅助磁记录头和光辅助磁记录装置
公开(公告)号：US06795380B2
公开(公告)日：2004-09-21
申请号：US10108503
申请日：2002-03-29
申请人： Junichi Akiyama , Akira Kikitsu , Tadashi Kai , Toshihiko Nagase , Tomoyuki Maeda
发明人： Junichi Akiyama , Akira Kikitsu , Tadashi Kai , Toshihiko Nagase , Tomoyuki Maeda
IPC分类号： G11B1100
CPC分类号： G11B5/4826 , G11B5/127 , G11B5/3103 , G11B5/3967 , G11B5/4833 , G11B7/00 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A pair of members opposed to each other via a gap are commonly used as an evanescent light probe and a writing magnetic head. When the spacing and width of the gap are smaller than the wavelength &lgr; of injected light, highly intensive evanescent light is generated from the gap position of the opposite surface. Magnetic writing is carried out by applying a recording magnetic field from the pair of members to a medium heated by the evanescent light.
摘要翻译：经由间隙彼此相对的一对构件通常用作渐逝光探针和写入磁头。当间隙的间隔和宽度小于注入的光的波长λ时，从相对表面的间隙位置产生高度强烈的消逝光。通过将记录磁场从一对构件施加到由渐逝光加热的介质来进行磁写入。

75. 发明授权

US06777078B2 Magnetic recording medium with L10 crystal grains including three or more elements 有权
标题翻译：具有L10晶粒的磁记录介质包括三个或更多个元件
公开(公告)号：US06777078B2
公开(公告)日：2004-08-17
申请号：US10050118
申请日：2002-01-18
申请人： Tomoyuki Maeda , Akira Kikitsu , Toshihiko Nagase , Junichi Akiyama
发明人： Tomoyuki Maeda , Akira Kikitsu , Toshihiko Nagase , Junichi Akiyama
IPC分类号： G11B565
CPC分类号： G11B5/653 , G11B5/656
摘要： A magnetic recording medium has a substrate, an underlayer formed on the substrate, a magnetic layer formed on the underlayer and including crystal grains having an L10 structure mainly including Fe and Pt, mainly including Fe and Pd, or mainly including Co and Pt, and the crystal grains further including 0.1 to 50 atomic percent of at least one additive element dissolved therein.
摘要翻译：磁记录介质具有衬底，在衬底上形成的底层，形成在底层上的磁性层，并且包括主要包含Fe和Pt或主要包括Co和Pt的具有主要包括Fe和Pt的L10结构的晶粒，以及晶粒还包含溶解在其中的至少一种添加元素的0.1至50原子％。

76. 发明授权

US06741524B2 Thermally-assisted magnetic recording and reproducing device having an electron beam thermal source 有权
标题翻译：具有电子束热源的热辅助磁记录和重放装置
公开(公告)号：US06741524B2
公开(公告)日：2004-05-25
申请号：US09749802
申请日：2000-12-28
申请人： Katsutaro Ichihara , Junichi Akiyama , Akira Kikitsu , Tsutomu Tanaka , Kuniyoshi Tanaka
发明人： Katsutaro Ichihara , Junichi Akiyama , Akira Kikitsu , Tsutomu Tanaka , Kuniyoshi Tanaka
IPC分类号： G11B1100
CPC分类号： G11B5/00 , G11B5/1278 , G11B9/10 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： Electrons are directed from an electron emitter towards a magnetic recording medium to heat a recording portion of the magnetic recording medium and magnetic information is written by a magnetic recording head to the temperature-elevated recording portion. Otherwise, a magnetic head having a magnetic pole is used and the magnetic pole serves as an electron emitter as well. Alternatively, a space between the electron emitter and recording medium is made shorter smaller the mean free path of electrons in the atmosphere to considerably improve the recording density.
摘要翻译：电子从电子发射器朝向磁记录介质被引导以加热磁记录介质的记录部分，并且磁信息由磁记录头写入升温记录部分。否则，使用具有磁极的磁头并且磁极也用作电子发射器。或者，电子发射器和记录介质之间的空间使得气氛中的电子的平均自由程更短，从而显着地提高了记录密度。

77. 发明授权

US6021024A Magnetic disk drive having a constant skew angle 失效
标题翻译：磁盘驱动器具有恒定的倾斜角度
公开(公告)号：US6021024A
公开(公告)日：2000-02-01
申请号：US292214
申请日：1994-08-19
申请人： Junichi Akiyama , Tetsuo Inoue , Keiko Higashi , Yasuo Ohtsubo , Kazushi Tanimoto
发明人： Junichi Akiyama , Tetsuo Inoue , Keiko Higashi , Yasuo Ohtsubo , Kazushi Tanimoto
IPC分类号： G11B5/012 , G11B5/48 , G11B5/60 , G11B5/55
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/4886
摘要： A magnetic disk drive for carrying out reading/writing of information to/from a magnetic disk having a plurality of tracks including an innermost circumference track and an outermost circumference track. The disk drive includes a rotary actuator and a magnetic head mounted on a magnetic head slider which has separate writing and reading elements. The elements have a magnetic gap for reading and writing the information on a magnetic disk. A rotary actuator arm has one end connected to a rotary actuator and the other end connected to the magnetic head slider. The head slider has an inflow end and an outflow end for the fluid flow generated by the rotation of the disk and at least one bearing which generates a dynamic pressure by the fluid flow. The head is provided close to the outflow. A skew angle created between the magnetic gap length direction and the rotating direction of the disk is substantially constant between the innermost and the outermost tracks. The bearing is arranged at a given angle with respect to the rotating direction so that the outflow end is located on the outer circumferential side of the magnetic disk from the inflow end.
摘要翻译：一种磁盘驱动器，用于对具有包括最内圆周轨道和最外圆周轨道的多个轨道的磁盘执行信息的读/写。磁盘驱动器包括旋转致动器和安装在具有单独的写入和读取元件的磁头滑块上的磁头。这些元件具有用于在磁盘上读取和写入信息的磁隙。旋转致动器臂的一端连接到旋转致动器，另一端连接到磁头滑块。磁头滑块具有用于由盘的旋转产生的流体流的流入端和流出端，以及由流体流产生动态压力的至少一个轴承。头部靠近流出口提供。在磁隙长度方向和盘的旋转方向之间产生的倾斜角度在最内侧轨道和最外侧轨道之间基本恒定。轴承相对于旋转方向以给定的角度布置，使得流出端从流入端位于磁盘的外周侧。

78. 发明授权

US5942342A Perpendicular recording medium and magnetic recording apparatus 失效
标题翻译：垂直记录介质和磁记录装置
公开(公告)号：US5942342A
公开(公告)日：1999-08-24
申请号：US960120
申请日：1997-10-27
申请人： Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
发明人： Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
IPC分类号： G11B5/64 , G11B5/66
CPC分类号： G11B5/66 , G11B5/656 , Y10S428/90 , Y10T428/12458 , Y10T428/12465 , Y10T428/12535 , Y10T428/12611
摘要： A magnetic recording apparatus comprising a perpendicular recording medium, a recording head for perpendicular magnetization the perpendicular magnetization film of the recording medium, to thereby recording signals on the recording medium, and a reproducing head of magnetoresistance type for reading signals from the recording medium. The medium comprises a substrate, an underlayer formed on the substrate, and a perpendicular magnetization film formed on the substrate and having a crystal phase of a CoPt-based alloy and a compound phase of material selected from the group consisting of Co oxide, Co nitride and Co carbide.
摘要翻译：一种磁记录装置，包括垂直记录介质，用于使记录介质的垂直磁化膜垂直磁化的记录头，从而在记录介质上记录信号，以及用于从记录介质读取信号的磁阻型再现头。所述介质包括基板，形成在所述基板上的底层，以及在所述基板上形成的具有CoPt基合金的晶相和选自Co氧化物，Co氮化物的材料的化合物相的垂直磁化膜和Co碳化物。

79. 发明授权

US5801908A Magnetic disk drive comprising rotary actuator arm having optimal arm length for minimizing track misregistration 失效
标题翻译：磁盘驱动器包括具有最佳臂长度的旋转致动器臂，以最小化轨道重合失调
公开(公告)号：US5801908A
公开(公告)日：1998-09-01
申请号：US720918
申请日：1996-10-07
申请人： Junichi Akiyama , Tetsuo Inoue
发明人： Junichi Akiyama , Tetsuo Inoue
IPC分类号： G11B5/127 , G11B5/265 , G11B5/39 , G11B5/48 , G11B5/55 , G11B5/56 , G11B5/60 , G11B5/33
CPC分类号： G11B5/4826 , G11B5/4886 , G11B5/5521 , G11B5/5552 , G11B5/56 , G11B5/6005 , G11B5/1278 , G11B5/3967
摘要： A magnetic disk drive that records and reproduces data onto and from a magnetic disk is provided with a rotary actuator arm tilt which has a length such that the variation of the skew angle formed where a line, connecting the center of rotation of rotary actuator, and one end of the rotary actuator crosses the track moving direction of the magnetic disk is a minimum. A composite head unit is provided and composed of a write head and a read head integrated into a single unit which is mounted on the rotary actuator arm, wherein in order to minimize the largest absolute value of the skew angle formed where the disk radius direction crosses the track width direction of the composite magnetic head on a given write track in the range from the innermost write track position to the outermost write track position. The composite magnetic head unit is constructed to meet at least either the condition that the unit is mounted obliquely with respect to a line connecting the center of rotation of the actuator and the composite magnetic head unit or the condition that the write head and the read head are stacked with the write head being shifted from the read head in the track width direction toward the outer circumference or the inner circumference to compensate for a track deviation due to the skew angle.
摘要翻译：在磁盘上记录和再生数据的磁盘驱动器设置有旋转执行器臂倾斜，该旋转致动器臂的倾斜度具有这样的长度：使得连接旋转致动器的旋转中心的线和连接旋转致动器的旋转中心的线的变化旋转执行器的一端与磁盘的磁道移动方向交叉是最小的。提供复合头单元，其由写入头和集成到安装在旋转致动器臂上的单个单元中的读取头组成，其中为了最小化形成在盘半径方向交叉的倾斜角的最大绝对值在从最内写入轨迹位置到最外面写入轨迹位置的范围内的给定写入轨道上的复合磁头的轨道宽度方向。复合磁头单元被构造成满足以下条件：单元相对于连接致动器的旋转中心和复合磁头单元的线倾斜地安装，或者写入头和读取头的条件堆叠，写头从磁道宽度方向上朝向外圆周或内圆周从读头移位，以补偿由于偏斜角引起的轨迹偏移。

80. 发明授权

US5792564A Perpendicular recording medium and magnetic recording apparatus 失效
标题翻译：垂直记录介质和磁记录装置
公开(公告)号：US5792564A
公开(公告)日：1998-08-11
申请号：US470463
申请日：1995-06-06
申请人： Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
发明人： Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
IPC分类号： G11B5/64 , G11B5/66
CPC分类号： G11B5/66 , G11B5/656 , Y10S428/90 , Y10T428/12458 , Y10T428/12465 , Y10T428/12535 , Y10T428/12611
摘要： A longitudinal recording medium and a magnetic recording apparatus containing the same, comprising a substrate and a longitudinal magnetization film formed on the substrate containing grains of a Co-based alloy, and exhibiting an oxygen concentration distribution having two peaks as follows: a peak of higher oxygen concentration pertaining to grain boundaries of the longitudinal magnetization film, and a peak of lower oxygen concentration pertaining to grain interiors of the longitudinal magnetization film.
摘要翻译：一种纵向记录介质和含有该记录介质的磁记录装置，包括在包含Co基合金颗粒的基板上形成的基板和纵向磁化膜，并显示具有两个峰的氧浓度分布如下：高与纵向磁化膜的晶界相关的氧浓度以及与纵向磁化膜的晶粒内部相关的较低的氧浓度的峰值。

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