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1. 发明授权

US06833173B1 Floppy disk including a seed layer and a primer layer with specified relative properties 失效
标题翻译：软盘包括种子层和具有特定相对性质的底漆层
公开(公告)号：US06833173B1
公开(公告)日：2004-12-21
申请号：US09670616
申请日：2000-09-27
申请人： Masakazu Nishikawa , Makoto Nagao
发明人： Masakazu Nishikawa , Makoto Nagao
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/656 , G11B5/7325 , Y10T428/2495 , Y10T428/265 , Y10T428/266 , Y10T428/269 , Y10T428/31721 , Y10T428/31725
摘要： A magnetic recording medium, which comprises a flattening layer with a thickness of 0.1-5.0 &mgr;m, a seed layer, a nonmagnetic primer layer containing chromium with a chromium concentration of 77-100 atom %, a Co—Cr type alloy magnetic layer, a protective layer, and a lubricating layer coated sequentially on at least one of the surfaces of a flexible nonmagnetic support member, whereby the seed layer is designed in such a manner that the linear expansion coefficient (ESE) of the seed layer and the linear expansion coefficient (EUL) of the nonmagnetic primer layer satisfy the relation: |ESE−EUL|/EUL 1.
摘要翻译：一种磁记录介质，其包括厚度为0.1-5.0μm的压平层，种子层，含铬浓度为77-100原子％的铬的非磁性底漆层，Co-Cr型合金磁性层，保护层和润滑层，其依次涂覆在柔性非磁性支撑构件的至少一个表面上，由此种子层被设计成使种子层的线性膨胀系数（ESE）和线性膨胀系数（EUL）满足关系：| ESE-EUL | / EUL <0.3，种子层的拉伸强度（SSE）和非磁性底漆层的拉伸强度（SUL）满足关系式：SSE / SUL> 1。

2. 发明授权

US06830837B2 Magnetic recording medium and magnetic recording apparatus 失效
标题翻译：磁记录介质和磁记录装置
公开(公告)号：US06830837B2
公开(公告)日：2004-12-14
申请号：US10046987
申请日：2002-01-17
申请人： Tetsuya Kanbe , Hiroyuki Suzuki , Yotsuo Yahisa , Yoshiyuki Hirayama , Hidekazu Kashiwase
发明人： Tetsuya Kanbe , Hiroyuki Suzuki , Yotsuo Yahisa , Yoshiyuki Hirayama , Hidekazu Kashiwase
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/66 , Y10S428/90 , Y10T428/1121 , Y10T428/12465 , Y10T428/12854 , Y10T428/12861
摘要： It is an object of the present invention to provide a high reliability magnetic storage apparatus capable of performing writing and reading back of high density information. The magnetic storage apparatus is so configured as to have a longitudinal magnetic recording medium including: a magnetic layer formed on a non-magnetic substrate via a plurality of underlayers; the magnetic layer including a lower magnetic layer containing Ru in an amount of not less than 3 at % to not more than 30 at %, and Cr in an amount of not less than 0 at % to not more than 18 at %, and further containing at least one of B or C in an amount of not less than 0 at % to not more than 20 at %, and an upper magnetic layer containing Co as a main component disposed thereon via a non-magnetic intermediate layer.
摘要翻译：本发明的目的是提供一种能够执行高密度信息的写入和读回的高可靠性磁存储装置。磁存储装置被配置为具有纵向磁记录介质，其包括：通过多个底层在非磁性基板上形成的磁性层; 所述磁性层包括含有不小于3原子％至不超过30原子％的量的Ru的下磁性层，并且不少于0原子％至不大于18原子％的Cr，含有不小于0at％至不超过20at％的B或C中的至少一个，以及经由非磁性中间层设置在其上的Co作为主要成分的上磁性层。

3. 发明授权

US06821652B1 Magnetic recording medium and magnetic storage apparatus 失效
标题翻译：磁记录介质和磁存储装置
公开(公告)号：US06821652B1
公开(公告)日：2004-11-23
申请号：US09588923
申请日：2000-06-06
申请人： Iwao Okamoto , E. Noel Abarra , Yoshifumi Mizoshita
发明人： Iwao Okamoto , E. Noel Abarra , Yoshifumi Mizoshita
IPC分类号： G11B566
CPC分类号： G11B5/66 , G11B5/74 , G11B5/82 , G11B2005/0002 , Y10S428/90 , Y10T428/265
摘要： A magnetic recording medium is constructed to include at least one exchange layer structure, and a magnetic layer formed on the exchange layer structure, where the exchange layer structure comprises a ferromagnetic layer, and a non-magnetic coupling layer provided on the ferromagnetic layer and under the magnetic layer. The ferromagnetic layer and the magnetic layer have antiparallel magnetizations. The non-magnetic coupling layer is made of a Ru-M3 alloy, where M3 is an added element or alloy, and a lattice mismatch between the non-magnetic coupling layer and the magnetic layer and the ferromagnetic layer respectively disposed above and below the non-magnetic coupling layer is adjusted to approximately 6% or less by addition of M3.
摘要翻译：磁记录介质被构造为包括至少一个交换层结构，以及形成在交换层结构上的磁性层，其中交换层结构包括铁磁层，以及设置在铁磁层上和下面的非磁性耦合层磁性层。铁磁层和磁性层具有反平行磁化。非磁性耦合层由Ru-M3合金制成，其中M3是添加元素或合金，非磁性耦合层与分别设置在非磁性耦合层之上和之下的磁性层和铁磁层之间的晶格失配通过添加M3将磁耦合层调节至约6％以下。

4. 发明授权

US06815063B1 Magnetic fluid 失效
标题翻译：磁性液体
公开(公告)号：US06815063B1
公开(公告)日：2004-11-09
申请号：US10148228
申请日：2002-05-24
申请人： Eric Mayes
发明人： Eric Mayes
IPC分类号： G11B566
CPC分类号： B82Y25/00 , C07K14/47 , G11B5/855 , H01F1/0054 , H01F1/0063 , H01F1/44 , H04R9/027 , Y10T428/2982 , Y10T428/2991 , Y10T428/2998
摘要： There is disclosed a magnetic fluid medium which comprises a plurality of ferro- or ferri-magnetic particles, each of which particles has a largest dimension no greater than 100 nm, said particles having been prepared by a process which includes a step in which the particles are formed within an organic macromolecular shell.
摘要翻译：公开了一种磁性流体介质，其包括多个铁磁性或铁磁性颗粒，其中每个颗粒具有不大于100nm的最大尺寸，所述颗粒通过包括以下步骤的方法制备，其中颗粒形成在有机大分子壳内。

5. 发明授权

US06803131B2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US06803131B2
公开(公告)日：2004-10-12
申请号：US10236772
申请日：2002-09-06
申请人： Naoki Ikeda , Seiichi Onodera
发明人： Naoki Ikeda , Seiichi Onodera
IPC分类号： G11B566
CPC分类号： G11B5/64 , Y10S428/90 , Y10T428/11 , Y10T428/265
摘要： Fine projections on a magnetic layer surface are controlled so as to reduce a media noise and improve C/Nmedia characteristic. A magnetic recording medium allows reproduction through a MR head or a GMR head. The magnetic layer on a main surface of a non-magnetic base has a coercive force of 80 KA/m or more and 180 KA/m or less. Assuming that a height of the fine projections is h and a diameter of the fine projections at a half-height h/2 is &phgr;h/2, 99% of the fine projections having a height not less than 10 nm satisfy a relationship as expressed by 100 nm≧&phgr;h/2≧40 nm.
摘要翻译：控制磁性层表面上的微细突起，以减少介质噪音并提高C / N媒体特性。磁记录介质允许通过MR磁头或GMR磁头进行再现。非磁性基体的主表面上的磁性层的矫顽力为80KA / m以上且180KA / m以下。假设微细突起的高度为h，半高h / 2处的微细突起的直径为phih / 2，则具有不小于10nm的高度的细突起的99％满足如下表达的关系： 100nm> = phih / 2> = 40nm。

6. 发明授权

US06800374B2 Cleaning tape 失效
标题翻译：清洁胶带
公开(公告)号：US06800374B2
公开(公告)日：2004-10-05
申请号：US10171730
申请日：2002-06-14
申请人： Hidetoshi Honda , Takashi Kanou , Hitoshi Wako , Satoshi Sekino , Ryoichi Hiratsuka
发明人： Hidetoshi Honda , Takashi Kanou , Hitoshi Wako , Satoshi Sekino , Ryoichi Hiratsuka
IPC分类号： G11B566
CPC分类号： G11B23/049 , Y10S15/12 , Y10T428/25 , Y10T428/265 , Y10T428/268
摘要： A cleaning tape comprising a nonmagnetic base film, an evaporated metal layer, specifically a magnetic layer or electroconductive layer, formed on the nonmagnetic base film, an inorganic protective film formed on the evaporated metal layer, and surface projections formed on the nonmagnetic base film by particles having a predetermined diameter and density. The tape has a low electric resistivity, a low head abrasion, and a sufficient cleaning effect suitable for cleaning a magnetoresistive type head.
摘要翻译：一种清洁带，包括非磁性基膜，形成在非磁性基膜上的蒸发金属层，特别是磁性层或导电层，形成在蒸发金属层上的无机保护膜，以及形成在非磁性基膜上的表面突起，通过具有预定直径和密度的颗粒。磁带具有低电阻率，低磁头磨损，以及适用于清洁磁阻型磁头的足够清洁效果。

7. 发明授权

US06787252B2 Perpendicular magnetic recording medium 失效
标题翻译：垂直磁记录介质
公开(公告)号：US06787252B2
公开(公告)日：2004-09-07
申请号：US10227524
申请日：2002-08-26
申请人： Yasushi Sakai , Sadayuki Watanabe
发明人： Yasushi Sakai , Sadayuki Watanabe
IPC分类号： G11B566
CPC分类号： G11B5/667 , G11B5/65 , G11B5/7325 , Y10S428/90
摘要： A perpendicular magnetic recording medium without shift or loss of written signals even in a case of a high recording density in a rare earth-transition metal alloy amorphous film, and where productivity is excellent. The perpendicular magnetic recording medium includes a soft magnetic under layer, an intermediate layer, a magnetic recording layer including a rare earth-transition metal alloy amorphous film and at least one of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, B, Al, C and Si or a boride or carbide uniformly dispersed in the rare earth-transition metal alloy amorphous film, a protective layer, a liquid lubricant layer, and a nonmagnetic substrate. The soft magnetic under layer, the intermediate layer, the magnetic recording layer, and the protective layer are built up in a predetermined order on the nonmagnetic substrate.
摘要翻译：即使在稀土 - 过渡金属合金非晶膜中的记录密度高的情况下，即使在生产率优异的情况下，也不会产生写入信号的移动或者丢失的垂直磁记录介质。垂直磁记录介质包括软磁下层，中间层，包括稀土 - 过渡金属合金非晶膜和至少一种Ti，Zr，Hf，V，Nb，Ta，Cr，Mo的磁记录层，W，B，Al，C和Si或均匀分散在稀土 - 过渡金属合金非晶膜，保护层，液体润滑剂层和非磁性基底中的硼化物或碳化物。软磁性层，中间层，磁记录层和保护层在非磁性基板上以预定顺序构成。

8. 发明授权

US06773833B2 Magnetic storage medium having improved thermal stability and a magnetic storage device using such a high-density magnetic storage medium 失效
标题翻译：具有改善的热稳定性的磁存储介质和使用这种高密度磁存储介质的磁存储装置
公开(公告)号：US06773833B2
公开(公告)日：2004-08-10
申请号：US09809527
申请日：2001-03-15
申请人： Akihiro Inomata , E. Noel Abarra , B. Ramamurthy Acharya
发明人： Akihiro Inomata , E. Noel Abarra , B. Ramamurthy Acharya
IPC分类号： G11B566
CPC分类号： B82Y25/00 , G11B5/012 , G11B5/66 , G11B2005/0002 , G11B2005/0005 , G11C11/16 , H01F10/3272 , Y10S428/90 , Y10T428/12465 , Y10T428/12854 , Y10T428/24942 , Y10T428/2495 , Y10T428/265
摘要： A magnetic storage medium includes first and second magnetic layers provided on a support substrate such that the first and second magnetic layers have respective first and second magnetizations in an anti-parallel relationship in a state no substantial writing magnetic field is applied. The first and second magnetizations are changed to a parallel relationship when a writing magnetic field is applied to the magnetic storage medium, and the first and second magnetizations are changed to the anti-parallel relationship as a result of a magnetic reversal caused in the second magnetic layer with diminishing of the writing magnetic field. The reversal is caused as a result of the action of a reversing magnetic field that dominates before the writing magnetic field is diminished and becomes zero.
摘要翻译：磁存储介质包括设置在支撑基板上的第一和第二磁性层，使得第一和第二磁性层在不施加实质写入磁场的状态下具有反并联关系的相应的第一和第二磁化。当写入磁场施加到磁存储介质时，第一和第二磁化被改变为平行关系，并且由于在第二磁场中引起的磁反转的结果，第一和第二磁化被改变为反并联关系写入磁场减小的层。由于在写入磁场减小并成为零之前主导的反转磁场的作用导致反转。

9. 发明授权

US06756113B2 Magnetic recording medium and manufacturing method thereof 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US06756113B2
公开(公告)日：2004-06-29
申请号：US10077880
申请日：2002-02-20
申请人： Yoshibumi Matsuda , Koji Sakamoto , Tetsuya Kanbe , Yotsuo Yahisa
发明人： Yoshibumi Matsuda , Koji Sakamoto , Tetsuya Kanbe , Yotsuo Yahisa
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/66 , G11B5/84 , Y10S428/90 , Y10T428/12465 , Y10T428/12861 , Y10T428/12931 , Y10T428/265
摘要： A magnetic recording medium includes a first underlying film of a NiTa alloy having a nonmagnetic amorphous structure and formed on a nonmagnetic substrate, and a second underlying film made of an alloy containing Cr and Ti, further a first magnetic film of a CoCrPt alloy, a nonmagnetic intermediate film of Ru and a second magnetic film of a CoCrPtB alloy that are serially formed over the first underlying film, wherein oxygen locally exists in an interface between the first underlying film and the second underlying film.
摘要翻译：磁记录介质包括具有非磁性无定形结构并形成在非磁性基底上的NiTa合金的第一底膜，以及由含有Cr和Ti的合金制成的第二底膜，另外还有CoCrPt合金的第一磁性膜， Ru的非磁性中间膜和CoCrPtB合金的第二磁性膜，其顺序地形成在第一底层膜上，其中氧局部存在于第一底层膜和第二底膜之间的界面中。

10. 发明授权

US06743529B2 Process for producing glass substrate for magnetic recording medium and glass substrate for magnetic recording medium obtained by the same 失效
标题翻译：用于制造用于磁记录介质的玻璃基板和由其获得的用于磁记录介质的玻璃基板的方法
公开(公告)号：US06743529B2
公开(公告)日：2004-06-01
申请号：US10015683
申请日：2001-12-17
申请人： Yasuhiro Saito , Hiroshi Ikeda , Junji Kurachi , Kazuishi Mitani
发明人： Yasuhiro Saito , Hiroshi Ikeda , Junji Kurachi , Kazuishi Mitani
IPC分类号： G11B566
CPC分类号： C03C3/083 , C03C3/085 , C03C3/087 , C03C15/00 , C03C19/00 , G11B5/7315 , G11B5/8404 , Y10S428/90
摘要： A process for producing a glass substrate for a magnetic recording medium by forming a surface roughness in a main surface of a glass plate that has been formed into a disk shape, includes: imparting a processing mark having a permanent strain to the main surface of the glass plate in a circumferential direction thereof; and chemically etching the whole main surface of the glass plate, so as to form the surface roughness.
摘要翻译：通过在已经形成为盘状的玻璃板的主表面中形成表面粗糙度来制造用于磁记录介质的玻璃基板的方法包括：将具有永久应变的加工标记赋予至玻璃板的圆周方向; 并化学蚀刻玻璃板的整个主表面，以形成表面粗糙度。

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