公开(公告)号：US20070076316A1

公开(公告)日：2007-04-05

申请号：US11607069

申请日：2006-12-01

申请人： Sadamu Kuse ,  Manabu Nose ,  Shihoko Takashima

发明人： Sadamu Kuse ,  Manabu Nose ,  Shihoko Takashima

IPC分类号： G11B19/02 ,  G11B23/02 ,  G11B5/584

CPC分类号： G11B15/43 ,  G11B15/26 ,  G11B15/602

摘要： A magnetic tape cartridge comprises: a magnetic tape on which data tracks and servo tracks are provided; a casing housing the magnetic tape therein: and a storing section which stores values of tape width detected during data recording onto the data tracks of the magnetic tape and from which the stored values of tape width are read out during data reproduction from the data tracks of the magnetic tape.

摘要翻译： 磁带盒包括：磁带，数据轨道和伺服轨道设置在该磁带上; 将磁带容纳在其中的外壳;以及存储部，其将在数据记录期间检测到的带宽的值存储到磁带的数据磁道上，并且从数据再现期间从数据轨道读出磁带宽度的存储值， 磁带。

公开(公告)号：US20060068232A1

公开(公告)日：2006-03-30

申请号：US10948259

申请日：2004-09-24

申请人： Hisanobu Mikamo ,  Seigi Kawarai ,  Sadamu Kuse

发明人： Hisanobu Mikamo ,  Seigi Kawarai ,  Sadamu Kuse

IPC分类号： G11B5/708

CPC分类号： G11B5/70626 ,  G11B5/714 ,  G11B5/716

摘要： A magnetic tape comprising a non-magnetic substrate and at least one magnetic layer formed on one surface of the non-magnetic substrate, characterized in that magnetic particles contained in an uppermost magnetic layer of the magnetic layer are substantially granular particles with a particle size of 30 nm or less, and that the ratio of a coercive force HcM in the machine direction to a coercive force HcT in the transverse direction, i.e., [HcM/HcT], is at least 2.2. This magnetic tape has a capacity capable of corresponding to mass storage of 1 TB or more, and achieves a high ratio of reproducing output to noises (C/N), particularly for signals within a short wavelength range, thus showing excellent high-density recording performance.

摘要翻译： 一种磁带，其包含非磁性基底和形成在所述非磁性基底的一个表面上的至少一个磁性层，其特征在于，所述磁性层的最上层的磁性层中所含的磁性粒子是粒径为 30nm以下，并且矫顽力Hc在机械方向上的相对于横向的矫顽力Hc T 的比例，即[Hc _{M>至少为2.2。 该磁带具有能够对应于1TB以上的大容量存储容量的能力，并且实现了对于噪声（C / N）的再现输出的高比率，特别是对于短波长范围内的信号，因此显示出优异的高密度记录 性能。}

公开(公告)号：US20050276999A1

公开(公告)日：2005-12-15

申请号：US10369606

申请日：2003-02-21

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： G11B5/706 ,  G11B5/712 ,  G11B5/714 ,  G11B5/716 ,  G11B23/107 ,  H01F1/00 ,  H01F1/055 ,  H01F1/059 ,  G11B5/82

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 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或包含铁的过渡金属的椭圆体颗粒，并且具有5至50nm的数均粒径和1至2的平均轴比，并且磁记录介质的总厚度较小 超过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。

公开(公告)号：US5051319A

公开(公告)日：1991-09-24

申请号：US477444

申请日：1990-02-09

申请人： Sadamu Kuse ,  Kimihiko Kaneno ,  Seigi Kawarai

发明人： Sadamu Kuse ,  Kimihiko Kaneno ,  Seigi Kawarai

IPC分类号： C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/73 ,  G11B5/735

CPC分类号： G11B5/735 ,  Y10S428/90

摘要： A magnetic recording tape comprising a non-magnetic substrate, a magnetic layer which comprises magnetic powder and a binder resin coated on one surface of the substrate and a back coating layer which comprises non-magnetic powder and a binder resin coated on the other surface of the substrate, wherein an amount of compounds having a molecular weight of 1000 to 5000, as converted to polystyrene molecular weight, extracted with tetrahydrofuran and converted to a polystyrene extraction amount, per 3 .mu.m thickness from the magnetic layer (W.sub.M) and per 1 .mu.m thickness of from the back coating layer (W.sub.B), are both less than 200 mg/m.sup.2, which tape has improved traveling stability and durability.

摘要翻译： 一种磁记录带，包括非磁性基板，包含磁性粉末的磁性层和涂覆在基板的一个表面上的粘合剂树脂，以及背涂层，其包含非磁性粉末和涂覆在另一表面上的粘合剂树脂 底物，其中一定量的分子量为1000-5000的转化为聚苯乙烯分子量的化合物用四氢呋喃萃取，并从磁性层（WM）每1μm厚度转化成聚苯乙烯提取量 从后涂层（WB）的厚度均小于200mg / m 2，该带具有改善的行进稳定性和耐久性。