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    MAGNETIC TAPE AND MAGNETIC TAPE CARTRIDGE
    1.
    发明申请
    MAGNETIC TAPE AND MAGNETIC TAPE CARTRIDGE 审中-公开
    磁带和磁带盒

    公开(公告)号：US20080107921A1

    公开(公告)日：2008-05-08

    申请号：US11766491

    申请日：2007-06-21

    申请人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto ,  Yuji Sasaki ,  Hideaki Watanabe

    发明人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto ,  Yuji Sasaki ,  Hideaki Watanabe

    IPC分类号： G11B5/39 ,  G11B5/62

    CPC分类号： B82Y25/00 ,  G11B5/584 ,  G11B5/70 ,  G11B5/70615 ,  G11B5/70621 ,  G11B5/712 ,  G11B5/714 ,  G11B5/716 ,  G11B5/73 ,  G11B5/735 ,  G11B5/78 ,  G11B23/107 ,  H01F1/0054 ,  H01F1/0551 ,  H01F1/059 ,  Y10T428/1107 ,  Y10T428/2991

    摘要： A magnetic recording medium comprising a non-magnetic support; at least one lower magnetic layer containing magnetic powder and a binder resin, which is formed on one side of the non-magnetic support with or without a non-magnetic primer layer interposed between the non-magnetic support and the lower magnetic layer; at least one non-magnetic intermediate layer containing non-magnetic powder and a binder resin, which is formed on the lower magnetic layer; at least one upper magnetic layer containing magnetic powder and a binder resin, which is formed on the non-magnetic intermediate layer; and a back layer which is formed on the other side of the non-magnetic support, characterized in that the magnetic powder contained in the uppermost magnetic layer of the upper magnetic layer is iron type magnetic powder which comprises substantially spherical or ellipsoidal particles with a number-average particle diameter of 5 to 50 nm and an average axial ratio of 1 to 2, each of said particles containing iron or containing iron as a main component and a transition element; and that the total thickness of the magnetic recording medium is 6 μm or less. This magnetic recording medium has electromagnetic conversion, characteristics which cannot be achieved by any of conventional magnetic recording media, and also is expected to have excellent magnetic serve characteristics.

    摘要翻译： 一种磁记录介质，包括非磁性载体; 至少一个含有磁性粉末和粘合剂树脂的下磁性层，其形成在非磁性载体的一侧上，该非磁性载体具有或不具有介于非磁性载体和下部磁性层之间的非磁性底漆层; 至少一个含有非磁性粉末和粘结剂树脂的非磁性中间层，形成在下部磁性层上; 至少一个含有磁性粉末和粘结剂树脂的上磁性层，形成在非磁性中间层上; 以及形成在所述非磁性载体的另一侧的背层，其特征在于，包含在所述上磁性层的最上层磁性层中的磁性粉末是铁型磁粉，其包含基本上具有数量的球形或椭圆形颗粒 平均粒径为5〜50nm，平均轴比为1〜2，所述粒子含有铁或以铁为主要成分，过渡元素为主成分。 并且磁记录介质的总厚度为6μm或更小。 这种磁记录介质具有电磁转换特性，这些特性通过任何常规的磁记录介质都不能实现，并且预期具有优异的磁性能特性。

    Magnetic tape and magnetic tape cartridge
    3.
    发明授权
    Magnetic tape and magnetic tape cartridge 有权
    磁带和磁带盒

    公开(公告)号：US07494728B2

    公开(公告)日：2009-02-24

    申请号：US10383768

    申请日：2003-03-10

    申请人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto

    发明人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto

    IPC分类号： G11B5/716

    CPC分类号： G11B5/70 ,  G11B5/714 ,  G11B5/735 ,  G11B5/738

    摘要： A magnetic tape comprising a non-magnetic support, a magnetic layer containing magnetic powder which is formed on one side of the non-magnetic support, a primer layer containing non-magnetic powder which is formed between the non-magnetic support and the magnetic layer, and a backcoat layer containing non-magnetic powder which is formed on the other side of the non-magnetic support, wherein the magnetic layer contains the magnetic powder which comprises plate, granular or ellipsoidal magnetic particles with a particle diameter of 5 to 50 nm, and has a thickness of 0.09 μm or less, and wherein at least one of the primer layer and the backcoat layer contains non-magnetic plate particles with a particle diameter of 10 to 100 nm.

    摘要翻译： 一种磁带，其包含非磁性载体，在非磁性载体的一侧形成含有磁性粉末的磁性层，含有非磁性粉末的底漆层，其形成在非磁性载体和磁性层之间 以及形成在非磁性载体的另一侧的含有非磁性粉末的背涂层，其中，磁性层含有磁性粉末，其包含粒径为5〜50nm的平板，粒状或椭圆形的磁性粒子 ，并且具有0.09μm以下的厚度，并且其中底涂层和背涂层中的至少一个包含粒径为10至100nm的非磁性板颗粒。

    MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING CASSETTE
    4.
    发明申请
    MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING CASSETTE 失效
    磁记录介质和磁记录卡

    公开(公告)号：US20070159722A1

    公开(公告)日：2007-07-12

    申请号：US11688179

    申请日：2007-03-19

    申请人： Sadamu KUSE ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto ,  Yuji Sasaki ,  Hideaki Watanabe

    发明人： Sadamu KUSE ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto ,  Yuji Sasaki ,  Hideaki Watanabe

    IPC分类号： G11B5/78 ,  G11B5/584 ,  G11B5/708

    CPC分类号： B82Y25/00 ,  G11B5/584 ,  G11B5/70 ,  G11B5/70615 ,  G11B5/70621 ,  G11B5/712 ,  G11B5/714 ,  G11B5/716 ,  G11B5/735 ,  G11B5/738 ,  G11B5/78 ,  G11B23/107 ,  H01F1/0054 ,  H01F1/0551 ,  H01F1/059 ,  Y10T428/1107 ,  Y10T428/2991

    摘要： A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, comprising a non-magnetic powder and a binder resin, at least one magnetic layer formed on the primer layer, comprising a magnetic powder and a binder resin, and a back layer formed on the other surface of the non-magnetic support, wherein the magnetic powder contained in the uppermost layer of the magnetic layer is a rare earth metal-iron type magnetic powder of substantially spherical or ellipsoidal particles comprising a rare earth element and iron or a transition metal which comprises iron, and has a number average particle size of 5 to 50 nm and an average axis ratio of 1 to 2, and the total thickness of the magnetic recording medium is less than 6 μm. This magnetic recording medium can achieve an excellent block error rate, which cannot be realized with magnetic recording media comprising conventional acicular magnetic powders.

    摘要翻译： 一种包含非磁性载体的磁记录介质，至少一个形成在所述非磁性载体的一个表面上的底层，包含非磁性粉末和粘合剂树脂，所述至少一个磁性层形成在所述底漆层上，包括 磁性粉末和粘合剂树脂，以及形成在非磁性载体的另一个表面上的背层，其中包含在磁性层的最上层中的磁粉是基本上为球形的稀土金属 - 铁型磁性粉末 或包含稀土元素和铁的过渡金属的椭圆体颗粒或包含铁的过渡金属，并且其数均粒径为5〜50nm，平均轴比为1〜2，磁记录介质的总厚度为 少于6个妈妈。 该磁记录介质可以实现优异的块错误率，这是由包含传统针状磁粉的磁记录介质所不能实现的。

    Magnetic tape and magnetic tape cartridge
    5.
    发明申请
    Magnetic tape and magnetic tape cartridge 审中-公开
    磁带和磁带盒

    公开(公告)号：US20050153170A1

    公开(公告)日：2005-07-14

    申请号：US10507134

    申请日：2003-07-16

    申请人： Tetsutaro Inoue ,  Tsugihiro Doi ,  Mikio Kishimoto

    发明人： Tetsutaro Inoue ,  Tsugihiro Doi ,  Mikio Kishimoto

    IPC分类号： G11B5/70 ,  G11B5/706 ,  G11B5/714 ,  G11B5/735 ,  G11B5/738 ,  G11B23/107 ,  B32B5/16 ,  G11B5/64

    CPC分类号： G11B23/107 ,  G11B5/70 ,  G11B5/70615 ,  G11B5/70621 ,  G11B5/714 ,  G11B5/73 ,  G11B5/735 ,  Y10T428/256 ,  Y10T428/257

    摘要： There is provided a magnetic tape comprising a non-magnetic support, and a primer layer and a magnetic layer both formed on a surface of the non-magnetic support, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer contains magnetic powder which comprises needle-like iron-based magnetic particles, and has a thickness of 0.09 μm or less; and the primer layer contains non-magnetic powder which comprises plate-like non-magnetic oxide particles with an average particle size of 10 to 100 nm. Further, the thermal expansion coefficient of the magnetic layer in the tape widthwise direction is (0 to 8)×10−6/° C., and the humidity expansion coefficient of the magnetic layer in the tape widthwise direction is (0 to 10)×10−6/% RH; and the amount of edge weave which is formed on either of the edges of the tape serving as the side of reference for the feeding of the tape is 0.8 μm or less. This magnetic tape is excellent in performance for recording/reproducing signals with short wavelengths and hardly causes a decrease in reproducing output due to off-track.

    摘要翻译： 提供了一种磁带，其包括非磁性载体，以及形成在非磁性载体的表面上的底漆层和磁性层以及形成在非磁性载体的另一表面上的背涂层，其中 磁性层含有包含针状铁基磁性颗粒的磁性粉末，其厚度为0.09μm以下。 底漆层含有平均粒径为10〜100nm的板状非磁性氧化物粒子的非磁性粉末。 此外，磁带的宽度方向的热膨胀系数为（0〜8）×10 -6 /℃，磁带的宽度方向的湿度膨胀系数 （0〜10）×10 -6 /％RH; 并且在作为用于输送带的基准侧的带的任一边上形成的边缘织物的量为0.8μm或更小。 该磁带在具有短波长的记录/再现信号的性能上是优异的，并且几乎不会导致由于偏离轨道的再现输出的减少。

    Magnetic tape and magnetic tape cartridge
    6.
    发明申请
    Magnetic tape and magnetic tape cartridge 审中-公开

    公开(公告)号：US20060003191A1

    公开(公告)日：2006-01-05

    申请号：US11214766

    申请日：2005-08-31

    申请人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto

    发明人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto

    IPC分类号： G11B5/708 ,  G11B5/706

    CPC分类号： G11B5/70 ,  G11B5/714 ,  G11B5/73 ,  G11B5/735

    摘要： A magnetic tape comprising a non-magnetic support, a magnetic layer containing magnetic powder which is formed on one side of the non-magnetic support, a primer layer containing non-magnetic powder which is formed between the non-magnetic support and the magnetic layer, and a backcoat layer containing non-magnetic powder which is formed on the other side of the non-magnetic support, wherein the magnetic layer contains the magnetic powder which comprises plate, granular or ellipsoidal magnetic particles with a particle diameter of 5 to 50 nm, and has a thickness of 0.09 μm or less, and wherein at least one of the primer layer and the backcoat layer contains non-magnetic plate particles with a particle diameter of 10 to 100 nm.

    Magnetic tape and magnetic tape cartridge
    8.
    发明授权
    Magnetic tape and magnetic tape cartridge 有权
    磁带和磁带盒

    公开(公告)号：US07267896B2

    公开(公告)日：2007-09-11

    申请号：US10389880

    申请日：2003-03-18

    申请人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto ,  Yuji Sasaki ,  Hideaki Watanabe

    发明人： Sadamu Kuse ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Mikio Kishimoto ,  Yuji Sasaki ,  Hideaki Watanabe

    IPC分类号： G11B5/706

    CPC分类号： B82Y25/00 ,  G11B5/584 ,  G11B5/70 ,  G11B5/70615 ,  G11B5/70621 ,  G11B5/712 ,  G11B5/714 ,  G11B5/716 ,  G11B5/735 ,  G11B5/738 ,  G11B5/78 ,  G11B23/107 ,  H01F1/0054 ,  H01F1/0551 ,  H01F1/059 ,  Y10T428/1107 ,  Y10T428/2991

    摘要： A magnetic recording medium comprising a non-magnetic support; at least one lower magnetic layer containing magnetic powder and a binder resin, which is formed on one side of the non-magnetic support with or without a non-magnetic primer layer interposed between the non-magnetic support and the lower magnetic layer; at least one non-magnetic intermediate layer containing non-magnetic powder and a binder resin, which is formed on the lower magnetic layer; at least one upper magnetic layer containing magnetic powder and a binder resin, which is formed on the non-magnetic intermediate layer; and a back layer which is formed on the other side of the non-magnetic support, characterized in that the magnetic powder contained in the uppermost magnetic layer of the upper magnetic layer is iron type magnetic powder which comprises substantially spherical or ellipsoidal particles with a number-average particle diameter of 5 to 50 nm and an average axial ratio of 1 to 2, each of said particles containing iron or containing iron as a main component and a transition element; and that the total thickness of the magnetic recording medium is 6 μm or less. This magnetic recording medium has electromagnetic conversion characteristics which cannot be achieved by any of conventional magnetic recording media, and also is expected to have excellent magnetic serve characteristics.

    摘要翻译： 一种磁记录介质，包括非磁性载体; 至少一个含有磁性粉末和粘合剂树脂的下磁性层，其形成在非磁性载体的一侧上，该非磁性载体具有或不具有介于非磁性载体和下部磁性层之间的非磁性底漆层; 至少一个含有非磁性粉末和粘结剂树脂的非磁性中间层，形成在下部磁性层上; 至少一个含有磁性粉末和粘结剂树脂的上磁性层，形成在非磁性中间层上; 以及形成在所述非磁性载体的另一侧的背层，其特征在于，包含在所述上磁性层的最上层磁性层中的磁性粉末是铁型磁粉，其包含基本上具有数量的球形或椭圆形颗粒 平均粒径为5〜50nm，平均轴比为1〜2，所述粒子含有铁或以铁为主要成分，过渡元素为主成分。 并且磁记录介质的总厚度为6μm或更小。 该磁记录介质具有通过任何常规磁记录介质无法实现的电磁转换特性，并且预期具有优异的磁性能特性。

    CARBON PARTICLE HAVING DEPOSITED FINE PARTICLES, PROCESS FOR PRODUCING THE SAME, AND ELECTRODE FOR FUEL CELL
    10.
    发明申请
    CARBON PARTICLE HAVING DEPOSITED FINE PARTICLES, PROCESS FOR PRODUCING THE SAME, AND ELECTRODE FOR FUEL CELL 审中-公开
    具有沉积精细颗粒的碳颗粒，其生产方法和用于燃料电池的电极

    公开(公告)号：US20090202869A1

    公开(公告)日：2009-08-13

    申请号：US12304462

    申请日：2007-06-12

    申请人： Yuko Sawaki ,  Mikio Kishimoto ,  Haruyuki Nakanishi ,  Shigeaki Murata ,  Masahiro Imanishi

    发明人： Yuko Sawaki ,  Mikio Kishimoto ,  Haruyuki Nakanishi ,  Shigeaki Murata ,  Masahiro Imanishi

    IPC分类号： H01M4/02 ,  B05D7/24 ,  B32B5/16

    CPC分类号： C01G49/0054 ,  B82Y30/00 ,  C01B32/05 ,  C01G51/003 ,  C01G51/006 ,  C01P2002/34 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/80 ,  C01P2002/85 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/8647 ,  H01M4/885 ,  H01M4/9033 ,  H01M4/92 ,  H01M4/921 ,  H01M4/923 ,  H01M4/925 ,  H01M4/926 ,  H01M2008/1095 ,  Y10T428/2991

    摘要： Carbon particles having fine particles deposited thereon which can be used as a substitute for the carbon particles having platinum deposited thereon and metallic platinum particles which are presently in general use as, e.g., a catalyst for electrodes in fuel cells. Compared to the conventional carbon particles having platinum deposited thereon, etc., the carbon particles are effective in greatly reducing the amount of platinum to be used. The carbon particles are characterized by comprising carbon particles and, deposited on the surface of the carbon particles, fine particles of a perovskite type composite metal oxide in each of which fine noble-metal particles are present throughout the whole particle. Also provided is a process for producing the carbon particles.The carbon particles having deposited fine particles have a constitution in which fine particles of a perovskite type composite metal oxide each having fine noble-metal particles present throughout the whole perovskite type oxide particle and having a crystallite size of 1-20 nm are deposited on carbon particles. The process for producing such carbon particles having fine particles deposited thereon comprises preparing a solution containing fine perovskite type composite oxide particles and complex ions of a metal for constituting fine noble-metal particles, subsequently repeating the step of impregnating the solution into carbon particles and dried the particles to thereby adsorb complex ions of the metal onto the carbon particles, and then subjecting the resultant particles to heat treatment.

    摘要翻译： 具有沉积在其上的细颗粒的碳颗粒可以用作其上沉积有铂的碳颗粒的替代物和目前通常用作燃料电池中的电极催化剂的金属铂颗粒。 与其上沉积有铂的常规碳颗粒相比，碳颗粒有效地大大降低了所用的铂的量。 碳颗粒的特征在于包含碳颗粒，并且在碳颗粒的表面上沉积有细小的贵金属颗粒存在于整个颗粒中的钙钛矿型复合金属氧化物的细颗粒。 还提供了用于生产碳颗粒的方法。 具有沉积细小颗粒的碳颗粒具有这样一种构造，即，在整个钙钛矿型氧化物颗粒中存在细小的贵金属微粒并且具有1-20nm的微晶尺寸的钙钛矿型复合金属氧化物的微粒沉积在碳上 粒子。 制备这种沉积有微细颗粒的碳颗粒的方法包括制备含有细钙钛矿型复合氧化物颗粒和用于构成细贵金属颗粒的金属的配合离子的溶液，随后重复将溶液浸渍到碳颗粒中并干燥 从而将金属的复合离子吸附到碳颗粒上，然后对所得颗粒进行热处理。