-
公开(公告)号：US07348077B2
公开(公告)日：2008-03-25
申请号：US10930755
申请日：2004-09-01
申请人： Enji Fujita , Hideaki Yamanaka , Tsuyoshi Onuma , Satoshi Matsunuma , Akira Yano , Tetsunori Koda , Katsusuke Shimazaki
发明人： Enji Fujita , Hideaki Yamanaka , Tsuyoshi Onuma , Satoshi Matsunuma , Akira Yano , Tetsunori Koda , Katsusuke Shimazaki
CPC分类号： G11B5/66 , G11B5/656 , G11B5/667 , G11B5/732 , G11B5/7325
摘要： A magnetic recording medium based on the perpendicular magnetic recording system includes a substrate; a back layer which is formed on the substrate and which is formed of a soft magnetic material; an in-plane magnetized layer which is formed on the back layer and which has in-plane magnetization; and a recording layer which is formed on the in-plane magnetized layer and which has perpendicular magnetization, wherein the in-plane magnetized layer has a coercivity in an in-plane direction larger than a magnetic field generated by residual magnetization in a perpendicular direction of the recording layer. The influence on the reproduction output, caused by the mirror image effect of the soft magnetic back layer is reduced in wide range recording densities, thereby improving the resolution by decreasing the difference between the reproduction outputs of the magnetic recording medium at the low recording density and at the high recording density.
摘要翻译： 基于垂直磁记录系统的磁记录介质包括基板; 背衬层，其形成在所述基板上并且由软磁性材料形成; 面内磁化层，其形成在背层上并具有面内磁化; 以及形成在所述面内磁化层上并且具有垂直磁化的记录层，其中所述面内磁化层的面内方向的矫顽力大于在垂直方向上的残余磁化产生的磁场的矫顽力 录音层。 在宽范围的记录密度下，由软磁背层的镜像效果引起的对再现输出的影响减小，从而通过将低记录密度的磁记录介质的再现输出与 在高记录密度。
-
2.发明授权公开(公告)号：US06846582B2
公开(公告)日：2005-01-25
申请号：US10292469
申请日：2002-11-13
IPC分类号： G11B5/64 , G11B5/65 , G11B5/667 , G11B5/673 , G11B5/73 , G11B5/66 , B32B15/01 , C25D5/26 , G11B5/70
CPC分类号： G11B5/732 , G11B5/656 , G11B5/667 , G11B5/7325 , Y10S428/90 , Y10T428/12861 , Y10T428/12875 , Y10T428/24942 , Y10T428/265
摘要： A magnetic recording medium 100 comprises, on a substrate 1, a soft magnetic layer 3, a seed layer 5, and a recording layer 6 having an artificial lattice structure. The seed layer 5 is formed of Pd and one selected from the group consisting of Si, B, C, and Zr. Accordingly, the magnetic exchange coupling force of the recording layer 6 in the in-plane direction can be weakened. Minute recording magnetic domains can be formed in the recording layer 6, and the magnetization transition area is distinct as well. Thus, the medium noise is reduced. That is, reproduction can be performed with a low medium noise even when information is recorded at a high density. A magnetic storage apparatus, which is provided with the magnetic recording medium as described above, can achieve an areal recording density of 150 Gigabits/square inch.
摘要翻译： 磁记录介质100在基板1上包括软磁层3，种子层5和具有人造晶格结构的记录层6。 种子层5由Pd和选自由Si，B，C和Zr组成的组中的一种形成。 因此，可以削弱记录层6在面内方向上的磁交换耦合力。 可以在记录层6中形成分钟记录磁畴，并且磁化过渡区也是不同的。 因此，中等噪声降低。 也就是说，即使以高密度记录信息，也可以以低的中等噪声进行再现。 如上所述设置有磁记录介质的磁存储装置可以实现150吉比特/平方英寸的面密度记录密度。
-
3.发明授权公开(公告)号：US06815098B2
公开(公告)日：2004-11-09
申请号：US10411299
申请日：2003-04-11
申请人： Satoshi Matsunuma , Akira Yano , Tsuyoshi Onuma , Takanobu Takayama , Harumi Hieida , Kouichirou Wakabayashi
发明人： Satoshi Matsunuma , Akira Yano , Tsuyoshi Onuma , Takanobu Takayama , Harumi Hieida , Kouichirou Wakabayashi
IPC分类号： G11B566
CPC分类号： G11B5/00 , G11B5/012 , G11B5/66 , G11B5/74 , G11B5/851 , Y10S428/90 , Y10T428/12465 , Y10T428/12868 , Y10T428/265
摘要： A magnetic recording medium comprises, on a substrate, a soft magnetic layer, a first seed layer, a second seed layer, and a recording layer having an artificial lattice structure. The first seed layer contains oxide of Fe. The second seed layer contains one of Pd and Pt, Si, and N. The magnetic exchange coupling force in the in-plane direction of the recording layer is weakened by the first seed layer and the second seed layer. Accordingly, minute recording magnetic domains can be formed in the recording layer, and the magnetization transition area is distinct as well. Even when information is recorded at a high density, the information can be reproduced with low noise. A magnetic storage apparatus, which is provided with such a magnetic recording medium, makes it possible to achieve an areal recording density of 150 gigabits/square inch.
摘要翻译： 磁记录介质在基板上包括软磁层，第一晶种层，第二晶种层和具有人造晶格结构的记录层。 第一种子层含有Fe的氧化物。 第二种子层包含Pd和Pt，Si和N中的一个。记录层的面内方向上的磁交换耦合力被第一种子层和第二种子层削弱。 因此，可以在记录层中形成分钟记录磁畴，并且磁化过渡区也是不同的。 即使当以高密度记录信息时，可以以低噪声再现信息。 具有这种磁记录介质的磁存储装置使得可以实现150吉比特/平方英寸的面积记录密度。
-
4.发明授权公开(公告)号：US06699602B2
公开(公告)日：2004-03-02
申请号：US10084944
申请日：2002-03-01
申请人： Mitsutoshi Honda , Hiroki Yamamoto , Takashi Naito , Tatsumi Hirano , Tetsuo Nakazawa , Fumiyoshi Kirino , Teruaki Takeuchi , Akira Yano , Nobuyuki Inaba , Satoshi Matsunuma
发明人： Mitsutoshi Honda , Hiroki Yamamoto , Takashi Naito , Tatsumi Hirano , Tetsuo Nakazawa , Fumiyoshi Kirino , Teruaki Takeuchi , Akira Yano , Nobuyuki Inaba , Satoshi Matsunuma
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/72 , G11B5/8404 , G11B5/8408 , Y10S428/90 , Y10T428/12465 , Y10T428/12618
摘要： An amorphous magnetic recording medium comprising a substrate and an amorphous magnetic layer, where a magnetic domain formation-controlling layer comprising a main phase and 1 to 3 kinds of discrete spherical isolating phases arranged horizontally in lines in the main phase or 1 to 3 kinds of discrete spherical phases vertically stacked one upon another in the main phase is formed on the top side or the bottom side directly or through at least one of other layers to bring the amorphous magnetic layer into a finer magnetic domain structure, can satisfy high density recording.
摘要翻译： 一种非晶磁记录介质，包括基板和非晶磁性层，其中包括主相的磁畴形成控制层和主相中的水平排列的1至3种离散的球形隔离相或1至3种 在主相中垂直层叠的离散球相直接或通过其它层中的至少一个形成在顶侧或底侧，以使非晶磁性层进入更细的磁畴结构，可以满足高密度记录。
-
公开(公告)号：US06221508B1
公开(公告)日：2001-04-24
申请号：US09206869
申请日：1998-12-08
申请人： Tetsuya Kanbe , Ichiro Tamai , Yuzuru Hosoe , Kiwamu Tanahashi , Yoshio Takahashi , Fumiyoshi Kirino , Nagatugu Koiso , Satoshi Matsunuma
发明人： Tetsuya Kanbe , Ichiro Tamai , Yuzuru Hosoe , Kiwamu Tanahashi , Yoshio Takahashi , Fumiyoshi Kirino , Nagatugu Koiso , Satoshi Matsunuma
IPC分类号： C23C1500
CPC分类号： G11B5/7325 , C23C14/185 , G11B5/00 , G11B5/012 , G11B2005/001 , G11B2005/0016 , Y10S428/90 , Y10S428/928 , Y10T428/1107 , Y10T428/1121 , Y10T428/12507 , Y10T428/1266 , Y10T428/12667 , Y10T428/12674 , Y10T428/12819 , Y10T428/12826 , Y10T428/12868 , Y10T428/12944 , Y10T428/265
摘要： In a magnetic storage apparatus having a magnetic recording medium, a drive unit for driving this medium in a prespecified recording direction, a magnetic head assembly including a recorder section and reproduction section, means for causing the magnetic head to move relatively with respect to the magnetic record medium, and a record/playback signal processor means for performing signal inputting to the magnetic head and for effecting reproduction of an output signal from the magnetic head, the reproduction section of said magnetic head is composed of a magnetic head of the magneto-resistance effect type, while said magnetic record medium is structured including a substrate and a magnetic layer formed thereover with one or several underlayers being sandwiched therebetween, wherein at least one of the underlayers is a specific layer that is made of amorphous or microcrystalline materials containing therein Ni as the principal or main component thereof and further containing at least one kind of element as selected from the group consisting of Nb and Ta.
摘要翻译： 在具有磁记录介质的磁存储装置中，用于以预先指定的记录方向驱动该介质的驱动单元，包括记录器部分和再现部分的磁头组件，用于使磁头相对于磁体相对移动的装置 记录介质和记录/重放信号处理器装置，用于对磁头执行信号输入并用于实现来自磁头的输出信号的再现，所述磁头的再现部分由磁阻的磁头组成 所述磁记录介质被构造成包括基板和形成在其上的一个或多个底层之间形成的磁性层，其中至少一个底层是由其中含有Ni的非晶或微晶材料制成的特定层 作为其主要成分或主要成分，还含有至少一种 选自Nb和Ta的元素。
-
6.发明授权公开(公告)号：US07226674B2
公开(公告)日：2007-06-05
申请号：US10765049
申请日：2004-01-28
摘要： A magnetic recording medium based on the perpendicular magnetic recording system has a substrate which is formed of a non-magnetic material, a soft magnetic back layer which is formed of a soft magnetic material and which is formed on the substrate, an underlayer which is formed on the soft magnetic back layer, and a recording layer which is formed of an alloy magnetic material which is mainly composed of CoPtCr and contains an oxide, and which is formed on the underlayer. The recording layer is formed of two or more magnetic layers having different oxide contents, and the layer, which is included in the two or more magnetic layers for constructing the recording layer and which is provided on a side nearest to the underlayer, has the highest oxide content in the recording layer. The magnetic recording medium has more excellent magnetic characteristics with less medium noise.
摘要翻译： 基于垂直磁记录系统的磁记录介质具有由非磁性材料形成的基板，由软磁性材料形成并形成在基板上的软磁性背层，形成的下层 以及由主要由CoPtCr组成并含有氧化物的合金磁性材料形成并形成在底层上的记录层。 记录层由具有不同氧化物含量的两个或更多个磁性层形成，并且包含在用于构造记录层的两个或更多个磁性层中并且设置在最靠近底层的一侧的层具有最高的 记录层中的氧化物含量。 磁记录介质具有更优异的磁特性，较少的中等噪声。
-
公开(公告)号：US07050253B2
公开(公告)日：2006-05-23
申请号：US10404071
申请日：2003-04-02
申请人： Tetsuya Kanbe , Ichiro Tamai , Yuzuru Hosoe , Kiwamu Tanahashi , Yoshio Takahashi , Fumiyoshi Kirino , Nagatugu Koiso , Satoshi Matsunuma
发明人： Tetsuya Kanbe , Ichiro Tamai , Yuzuru Hosoe , Kiwamu Tanahashi , Yoshio Takahashi , Fumiyoshi Kirino , Nagatugu Koiso , Satoshi Matsunuma
IPC分类号： G11B5/02
CPC分类号： G11B5/7325 , C23C14/185 , G11B5/00 , G11B5/012 , G11B2005/001 , G11B2005/0016 , Y10S428/90 , Y10S428/928 , Y10T428/1107 , Y10T428/1121 , Y10T428/12507 , Y10T428/1266 , Y10T428/12667 , Y10T428/12674 , Y10T428/12819 , Y10T428/12826 , Y10T428/12868 , Y10T428/12944 , Y10T428/265
摘要： In a magnetic storage apparatus having a magnetic recording medium, a drive unit for driving this medium in a prespecified recording direction, a magnetic head assembly including a recorder section and reproduction section, means for causing the magnetic head to move relatively with respect to the magnetic record medium, and a record/playback signal processor means for performing signal inputting to the magnetic head and for effecting reproduction of an output signal from the magnetic head, the reproduction section of said magnetic head is composed of a magnetic head of the magnetoresistance effect type, while said magnetic record medium is structured including a substrate and a magnetic layer formed thereover with one or several underlayers being sandwiched therebetween, wherein at least one of the underlayers is a specific layer that is made of amorphous or microcrystalline materials containing therein Ni as the principal or main component thereof and further containing at least one kind of element as selected from the group consisting of Nb and Ta.
-
公开(公告)号：US06602621B2
公开(公告)日：2003-08-05
申请号：US10026636
申请日：2001-12-27
申请人： Satoshi Matsunuma , Akira Yano , Tsuyoshi Onuma , Takanobu Takayama , Harumi Hieida , Kouichirou Wakabayashi
发明人： Satoshi Matsunuma , Akira Yano , Tsuyoshi Onuma , Takanobu Takayama , Harumi Hieida , Kouichirou Wakabayashi
IPC分类号： G11B566
CPC分类号： G11B5/00 , G11B5/012 , G11B5/66 , G11B5/74 , G11B5/851 , Y10S428/90 , Y10T428/12465 , Y10T428/12868 , Y10T428/265
摘要： A magnetic recording medium comprises, on a substrate, a soft magnetic layer, a first seed layer, a second seed layer, and a recording layer having an artificial lattice structure. The first seed layer contains oxide of Fe. The second seed layer contains one of Pd and Pt, Si, and N. The magnetic exchange coupling force in the in-plane direction of the recording layer is weakened by the first seed layer and the second seed layer. Accordingly, minute recording magnetic domains can be formed in the recording layer, and the magnetization transition area is distinct as well. Even when information is recorded at a high density, the information can be reproduced with low noise. A magnetic storage apparatus, which is provided with such a magnetic recording medium, makes it possible to achieve an areal recording density of 150 gigabits/square inch.
-
公开(公告)号：US5651867A
公开(公告)日：1997-07-29
申请号：US591935
申请日：1990-10-02
申请人： Yuichi Kokaku , Hiroyuki Kataoka , Makoto Kitoh , Shigehiko Fujimaki , Satoshi Matsunuma , Kenji Furusawa , Nobuo Nakagawa , Katsuo Abe , Masaaki Hayashi
发明人： Yuichi Kokaku , Hiroyuki Kataoka , Makoto Kitoh , Shigehiko Fujimaki , Satoshi Matsunuma , Kenji Furusawa , Nobuo Nakagawa , Katsuo Abe , Masaaki Hayashi
CPC分类号： H01J37/32623 , C23C14/566 , C23C16/5096 , G11B5/84 , G11B5/851 , H01J37/32743
摘要： A plasma processing apparatus comprising: a vacuum container; an evacuation means for keeping the interior of the vacuum container at a pressure not higher than atmospheric pressure; a substrate support device for supporting a substrate to be subjected to plasma processing; an electrode for generating plasma in cooperation with the substrate support; a voltage supply for applying a voltage to the electrode; a gas introducing system for introducing a gaseous material into a space where the plasma is produced; a surrounding member for enclosing the space above the substrate support, and a drive for relatively moving the surrounding member to space an end of the surrounding member proximate from the substrate from at least one of the substrate support and the substrate supported thereon by a distance which is short enough to suppress plasma leakage during the plasma processing and to position the end of the surrounding member away from said at least one of the substrate support and the substrate thereon for charging and discharging of the substrate.
摘要翻译： 一种等离子体处理装置，包括：真空容器; 用于将真空容器的内部保持在不高于大气压的压力的排气装置; 用于支撑待进行等离子体处理的基板的基板支撑装置; 用于与衬底支撑件协作产生等离子体的电极; 用于向电极施加电压的电压源; 用于将气态物质引入制造等离子体的空间中的气体导入系统; 用于封闭衬底支撑件上方的空间的周围构件以及用于相对移动周围构件的驱动器，用于将基板支撑件和支撑在其上的衬底中的至少一个上的衬底附近的邻近基板的一端远离一定距离， 足够短以抑制等离子体处理期间的等离子体泄漏并且使周围部件的端部远离所述至少一个基板支撑件和其上的基板，以对基板进行充电和放电。
-
公开(公告)号：US06924048B2
公开(公告)日：2005-08-02
申请号：US10413481
申请日：2003-04-15
申请人： Tetsuya Kanbe , Yuzuru Hosoe , Ichiro Tamai , Yoshio Takahashi , Kiwamu Tanahashi , Satoshi Matsunuma , Yoshihiro Shiroishi
发明人： Tetsuya Kanbe , Yuzuru Hosoe , Ichiro Tamai , Yoshio Takahashi , Kiwamu Tanahashi , Satoshi Matsunuma , Yoshihiro Shiroishi
CPC分类号： G11B5/70 , G11B5/714 , Y10S428/90
摘要： A magnetic storage device has a magnetic layer, the magnetic crystal grains of which are separated by a nonmagnetic phase. The typical crystal grain is in the approximate shape of a sphere or an ellipsoid. The thickness of the magnetic crystal grains, which is in the direction perpendicular to the surface or the film, is smaller than that of the thickness of the magnetic film. The ratio of the coercive force, which is measured in the circumferential direction, to the coercive force, which is measured in the radial direction, (the orientation ratio of the coercive force), is larger than 1.0, but preferably nor greater than 3.0. Further, the area fraction of the magnetic grains having an extended axis within 30° from the circumferential direction is equal to or more than 45%.
摘要翻译： 磁存储装置具有磁性层，其磁性晶粒由非磁性相分离。 典型的晶粒呈球体或椭圆体的近似形状。 磁性晶粒的与表面或膜垂直的方向的厚度小于磁性膜的厚度。 在圆周方向上测量的矫顽力与径向测定的矫顽力（矫顽力的取向比）的比例大于1.0，优选为3.0以下。 此外，具有从圆周方向的30°以内的延伸轴的磁性颗粒的面积分数等于或大于45％。
-
-
-
-
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.019 秒)
