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1. 发明专利

JP2006127681A Magnetic recording medium and its manufacturing method, and magnetic recording and reproducing device 审中-公开
标题翻译：磁记录介质及其制造方法和磁记录和再现装置
公开(公告)号：JP2006127681A
公开(公告)日：2006-05-18
申请号：JP2004316616
申请日：2004-10-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUCHIYA HIROKO , MOCHIZUKI MASABUMI , TAKAHASHI TERUO , IKEGAME HIROSHI
IPC分类号： G11B5/667 , G11B5/64 , G11B5/65 , G11B5/738 , G11B5/84
CPC分类号： G11B5/855 , G11B5/667 , G11B5/7325 , G11B5/8404
摘要： PROBLEM TO BE SOLVED: To provide a discrete track type perpendicular magnetic recording medium which is excellent in crystal orientation and perpendicular magnetic anisotropy of a magnetic recording layer, obviates deterioration of the magnetic characteristics of the magnetic recording layer due to processing, is inexpensive in manufacturing cost, and does not require a complicated manufacturing process and to provide its manufacturing method. SOLUTION: The perpendicular magnetic recording medium has rugged pattern structure comprising projecting parts corresponding to the positions of data tracks 55 for recording magnetic information and recessed parts corresponding to the positions between the data tracks on the surface on a medium floating surface side of a soft magnetic backing layer 52 and is laminated with a base layer 53 and the magnetic recording layer 54 for crystal orientation control along the rugged pattern structure on the projecting parts and the recessed parts without omission. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供磁记录层的晶体取向和垂直磁各向异性优异的离散轨道型垂直磁记录介质，消除了由于处理而导致的磁记录层的磁特性的劣化，是制造成本低廉，并且不需要复杂的制造工艺并提供其制造方法。解决方案：垂直磁记录介质具有粗糙的图案结构，其包括对应于用于记录磁信息的数据轨道55的位置的突出部分和对应于在介质浮动表面侧的表面上的数据轨道之间的位置的凹部柔性磁性背衬层52，并且在突出部分和凹陷部分上沿着凹凸图案结构层叠有基底层53和用于晶体取向控制的磁记录层54，而没有遗漏。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005158254A Information recording medium 有权
标题翻译：信息记录媒体
公开(公告)号：JP2005158254A
公开(公告)日：2005-06-16
申请号：JP2005002006
申请日：2005-01-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TERAO MOTOYASU , MIYAMOTO JIICHI , SHINTANI TOSHIMICHI , KOJIMA KYOKO , TSUCHIYA HIROKO
IPC分类号： G03C1/725 , G11B7/0045 , G11B7/24 , G11B7/241 , G11B7/243 , G11B7/244
摘要： PROBLEM TO BE SOLVED: To attain stable large capacity super high speed recording and high density recording. SOLUTION: Voltage is applied to a recording layer between a pair of electrodes. The interval between the two electrodes sandwiching the recording layer is made wide at one of a land part and the groove part of an optical disk or made narrow at the other to generate light absorption only at one part. A layer whose absorption spectrum is changed by voltage application and which absorbs light is provided as the recording layer itself or as an another layer adjacent to the recording layer. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：获得稳定的大容量超高速记录和高密度记录。解决方案：将电压施加到一对电极之间的记录层。夹着记录层的两个电极之间的间隔在光盘的岸台部分和槽部分中的一个处被制成宽，或者在另一个处形成狭窄，以在一个部分仅产生光吸收。其吸收光谱通过施加电压而被吸收光的层被提供作为记录层本身或与记录层相邻的另一层。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004220671A NANOPARTICLE MAGNETIC RECORDING MEDIUM OF L1O-FePt OF ABOUT 45-DEGREE TILTED ORIENTATION OF C AXIS 审中-公开
公开(公告)号：JP2004220671A
公开(公告)日：2004-08-05
申请号：JP2003005243
申请日：2003-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SOEYA SUSUMU , KAWATO YOSHIAKI , TSUCHIYA HIROKO , ITOU AKITOMO
IPC分类号： G11B5/65
摘要： PROBLEM TO BE SOLVED: To provide a nanoparticle magnetic recording medium of order-L10-FePt of a c-axis of about 45° tilted orientation simultaneously satisfying (1) nanoparticles, (2) the heat history step of 300°C or less (heat treatment temperature), and (3) the direction of a tilt of about 45° from the c axis//medium surface direction of the L10-FePt by selecting the medium material of order-L10-FePt having very large one-axis crystal magnetic anisotropy as a magnetic recording medium material having a surface recording density of exceeding terrabit /in
2 .
SOLUTION: This magnetic recording medium includes a structure in which at least L10-FePtCu nanoparticles are dispersed in a low melting point oxide B
2 O
3 matrix, and the L10-FePtCu crystal particle has the orientation of the c- axis about 45° tilt.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2004071038A Medium and method for information recording and information reproduction method 有权
公开(公告)号：JP2004071038A
公开(公告)日：2004-03-04
申请号：JP2002228094
申请日：2002-08-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TERAO MOTOYASU , TSUCHIYA HIROKO , MATSUMOTO TAKUYA , KOJIMA KYOKO
IPC分类号： B41M5/26 , B32B3/02 , G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/24 , G11B7/243 , G11B7/244 , G11B11/10 , G11B11/105
CPC分类号： G11B5/02 , B82Y10/00 , B82Y30/00 , G11B5/64 , G11B5/66 , G11B5/82 , G11B7/00454 , G11B7/0079 , G11B7/122 , G11B7/24 , G11B7/24038 , G11B7/24085 , G11B7/24088 , G11B7/2585 , G11B7/259 , G11B7/26 , G11B11/10528 , G11B11/10584 , G11B11/10586 , G11B2005/0002 , G11B2005/0021 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10T428/21 , Y10T428/25
摘要： PROBLEM TO BE SOLVED: To achieve high-speed and high density recording and recording with regard to an information recording medium, a method for recording information, and a device for recording information by using light. SOLUTION: A layer in which super-micronic particles of light absorption metal, dielectric substance, or of recording material are regularly arranged is provided. By resonance plasmon excitation, stimulation absorption or the like of the super-micronic particles, a recording mark edge in recording is made correct, strong absorption can occur to only the specific layer by wavelength even if the layer is multiplied, and recording of high density and large capacity is realized. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2009064527A Perpendicular magnetic recording medium and magnetic recording device 审中-公开
标题翻译：全能磁记录介质和磁记录装置
公开(公告)号：JP2009064527A
公开(公告)日：2009-03-26
申请号：JP2007233090
申请日：2007-09-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAGINOYA CHISEKI , TSUCHIYA HIROKO , TAKEI HISAKO
IPC分类号： G11B5/65 , G11B5/667 , G11B5/738 , G11B5/84 , G11B5/851
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/82
摘要： PROBLEM TO BE SOLVED: To inexpensively manufacture a discrete track medium having a high SNR and a bit patterned medium.
SOLUTION: A seed layer 108 and a recording layer 109 are formed on a bottom surface and a side wall of a groove part formed between non-magnetic projection structures 104 which are artificially patterned and a recording layer on a projection part is removed.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了廉价地制造具有高SNR的分立轨道介质和位图形介质。解决方案：种子层108和记录层109形成在形成在人造图案的非磁性突起结构104和突出部分上的记录层之间形成的凹槽部分的底表面和侧壁上。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2004227745A Magnetic recording medium, magnetic recorder with the same mounted thereon, and method and device for manufacturing magnetic recording medium 有权
公开(公告)号：JP2004227745A
公开(公告)日：2004-08-12
申请号：JP2003086318
申请日：2003-03-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA ATSUSHI , SUZUKI YOSHIO , TANAHASHI KIWAMU , TSUCHIYA HIROKO
IPC分类号： G11B5/65 , G11B5/00 , G11B5/02 , G11B5/09 , G11B5/11 , G11B5/127 , G11B5/48 , G11B5/64 , G11B5/74 , G11B5/84 , G11B5/845
CPC分类号： G11B5/1278 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/11 , G11B5/488 , G11B5/4886 , G11B5/64 , G11B5/74 , G11B5/82 , G11B2005/0002 , G11B2005/0005 , G11B2005/0029 , Y10T428/11
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recorder in which the resolution and the S/N are improved without impairing the heat resistant demagnetization property as compared with a conventional technology. SOLUTION: An angle formed by the easy magnetization direction of a recording layer and the normal direction of the magnetic recording medium is set to 5-55°, and the easy magnetization direction is taken to the direction toward a front surface of the recording layer from the rear, and when the recording track direction is taken to the direction toward the downstream side from the upstream side of the moving direction of the magnetic recording medium, an angle formed by the direction of a projection of the easy magnetization direction on the surface of the magnetic recording medium and the above recording track direction is set to 0-70°. COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2004134040A Magnetic recording medium consisting of perfectly c-axis orientated l10-fept based nanoparticle 审中-公开
标题翻译：具有完全C轴定向的L10-FEPT基纳米颗粒的磁记录介质
公开(公告)号：JP2004134040A
公开(公告)日：2004-04-30
申请号：JP2002299791
申请日：2002-10-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SOEYA SUSUMU , TSUCHIYA HIROKO , ITOU AKITOMO
IPC分类号： G11B5/65 , H01F1/032 , H01F10/14
摘要： PROBLEM TO BE SOLVED: To provide a "magnetic recording medium consisting of perfectly c-axis orientated L10-FePt based nanoparticles", which medium simultaneously satisfies three; (1) nanoparticles, (2) a heat history process of ≤300°C (heat treatment temperature/substrate temperature), and (3) "perfect c-axis orientation. SOLUTION: At least the L10-FePtCu nanoparticles or L10-FePt based nanoparticles are scattered in a low melting point oxide or low melting point metallic matrix and the L10-FePtCu crystal grains are subjected to the perfect c-axis orientation by the heat treatment and magnetic field orientation. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供“由完全c轴取向的L10-FePt基纳米颗粒组成的磁记录介质”，该介质同时满足三个; （1）纳米颗粒，（2）≤300℃的热历程（热处理温度/基板温度），和（3）“完美的c轴取向”。解决方案：至少将L10-FePtCu纳米颗粒或 L10-FePt基纳米颗粒散布在低熔点氧化物或低熔点金属基体中，L10-FePtCu晶粒通过热处理和磁场取向受到完美的c轴取向。版权所有（C） C）2004，JPO

8. 发明专利

JP2003317222A Recording medium 审中-公开
标题翻译：记录媒体
公开(公告)号：JP2003317222A
公开(公告)日：2003-11-07
申请号：JP2002116981
申请日：2002-04-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI TERUO , ITOU AKITOMO , TSUCHIYA HIROKO
IPC分类号： G11B5/66 , G11B5/667 , G11B5/712 , G11B5/714 , G11B5/738 , G11B5/84 , H01F1/20
摘要： PROBLEM TO BE SOLVED: To provide a medium which is formed with patterns on a recording layer for high-density recording and can record micro-recording bits.
SOLUTION: Particulates are arrayed on a substrate, tape or ground surface film and an intermediate layer or the recording layer is made in such a manner that undulations of shapes based on the array of the particulates are transferred from above the same. While the segments formed right above the particulates in the recording film are relatively flat, the segments formed in the boundaries with the particulates are recessed. The structure regularly arrayed with the undulations of the shapes is therefore actualized on the recording layer. The shapes of the recording bits are controlled by utilizing their distributions, by which the high-recording density magnetic recording medium can be made.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供在记录层上形成图案以进行高密度记录的介质，并且可以记录微记录位。解决方案：颗粒排列在基板，带或地表面膜和中间层上，或者记录层以这样的方式制成，即基于颗粒阵列的形状起伏从其上方传送。虽然在记录膜上的颗粒正上方形成的片段相对平坦，但是在与微粒的边界中形成的片段是凹进的。因此，在记录层上实现了具有形状波动的规则排列的结构。通过利用它们的分布来控制记录位的形状，通过该分布可以制造高记录密度的磁记录介质。版权所有（C）2004，JPO

9. 发明专利

JP2003016609A Magnetic head and magnetic disk device 有权
标题翻译：磁头和磁盘设备
公开(公告)号：JP2003016609A
公开(公告)日：2003-01-17
申请号：JP2001198587
申请日：2001-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUCHIYA HIROKO , HOSHIYA HIROYUKI , KAWATO YOSHIAKI , WATANABE KATSURO , IDE HIROSHI
IPC分类号： G11B5/31 , G11B5/127 , G11B5/265
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/2652 , G11B5/3146 , G11B5/315
摘要： PROBLEM TO BE SOLVED: To provide a thin film single magnetic pole head for perpendicular magnetic recording having a structure wherein format efficiency is high, servo is easy, a recording pattern on a medium is hardly influenced, and processing time is shortened.
SOLUTION: A thin film single magnetic pole head for perpendicular magnetic recording is formed on a reproducing head constituted of a pair of shield layers 10, 12 formed on a substrate 13 and a reproducing element 11 formed therebetween. The structure has no auxiliary magnetic pole 9 to be arranged in-between the reproducing element 11 of the reproducing head and the main magnetic pole 1 of a recording head when seen from a plane opposite to the recording medium.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供具有格式效率高的结构的垂直磁记录用薄膜单磁极头，伺服容易，介质上的记录图案几乎不受影响，缩短处理时间。解决方案：用于垂直磁记录的薄膜单磁极头形成在由形成在基板13上的一对屏蔽层10,12和形成在其间的再现元件11构成的再现头上。当从与记录介质相对的平面看时，该结构没有辅助磁极9布置在再现头的再现元件11和记录头的主磁极1之间。

10. 发明专利

JP2004220670A Method for forming nanoparticle film aligned in axis of easy magnetization, magnetic recording medium using the same and manufacturing method and apparatus thereof 审中-公开
公开(公告)号：JP2004220670A
公开(公告)日：2004-08-05
申请号：JP2003005242
申请日：2003-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUCHIYA HIROKO , TERAO MOTOYASU
IPC分类号： G11B5/706 , G11B5/00 , G11B5/012 , G11B5/64 , G11B5/70 , G11B5/702 , G11B5/82 , G11B5/84 , G11B5/842 , G11B5/845 , G11B5/852 , G11B11/105 , H01F10/12 , H01F41/16
CPC分类号： G11B5/65 , G11B5/00 , G11B5/012 , G11B5/82 , G11B5/84 , G11B5/852 , G11B11/10536 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , Y10T428/256
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which does not require high-temperature processing for exhibiting magnetization of nano particles and is superior in flatness of a nanoparticle film, and its manufacturing method and apparatus. SOLUTION: In the medium, a substrate has a nanoparticle layer composed of nano particles, having an average particle diameter of ≥1 nm and ≤20 nm and containing at least one kind of element among Fe, Co, Ni, Mn, Sm, Pt and Pd and an organic compound imposing among alignments of the nano particles, infrared lights are irradiated on to the nanoparticle layer of the substrate to exhibit the magnetization, the directions of axes of easy magnetization of the magnetized nano particles are aligned approximately one directions by applying a magnetic field to the nanoparticle layer, the organic compound is fixed to the nanoparticle layer by irradiating ultraviolet lights, and the axis of the easy magnetization are aligned approximately in parallel with a specific direction to the substrate. Accordingly, the medium which not produce deterioration in a base film and a soft magnetic film, but will exhibit proper magnetic characteristics can be provided. COPYRIGHT: (C)2004,JPO&NCIPI

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