公开(公告)号：US20080225432A1

公开(公告)日：2008-09-18

申请号：US12045820

申请日：2008-03-11

申请人： Kenji TANAKA ,  Sadamu Kuse

发明人： Kenji TANAKA ,  Sadamu Kuse

IPC分类号： G11B15/00 ,  G11B5/008

CPC分类号： G11B5/00826 ,  G11B5/4893 ,  G11B5/584 ,  G11B15/60

摘要： In a magnetic tape apparatus of the present invention, a magnetic head unit having magnetic elements capable of recording or reproducing information with respect to a magnetic tape includes a movable member that includes a magnetic element and has such a size that the movable member comes into contact with the magnetic tape over an entire region in a width direction, and is placed so as to move in the width direction of the magnetic tape, and a stationary member that is placed at a position adjacent to the movable member in a magnetic tape transport direction, wherein the movable member is moved in the width direction of the magnetic tape by a tracking servo mechanism during a tracking servo control. According to this configuration, a magnetic tape apparatus excellent in a tracking precision can be provided, in which even a magnetic tape with a high friction coefficient does not move following the movement of a magnetic head unit in the width direction.

摘要翻译： 在本发明的磁带装置中，具有能够记录或再现关于磁带的信息的磁性元件的磁头单元包括可移动部件，其包括磁性元件，并且具有可移动部件接触的尺寸 使磁带在宽度方向上的整个区域上，并且被放置成沿着磁带的宽度方向移动;以及静止部件，其被配置在磁带传送方向上与可动部件相邻的位置 其特征在于，在跟踪伺服控制期间，所述可动部件通过跟踪伺服机构在所述磁带的宽度方向上移动。 根据该结构，可以提供一种跟踪精度优异的磁带装置，其中即使在磁头单元沿宽度方向的移动之后，具有高摩擦系数的磁带也不会移动。

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。

公开(公告)号：US07291409B2

公开(公告)日：2007-11-06

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

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的椭圆体颗粒或包含铁的过渡金属，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：US07158339B2

公开(公告)日：2007-01-02

申请号：US11236536

申请日：2005-09-28

申请人： Sadamu Kuse ,  Manabu Nose ,  Shihoko Takashima

发明人： Sadamu Kuse ,  Manabu Nose ,  Shihoko Takashima

IPC分类号： G11B5/584 ,  G11B17/00 ,  G11B27/36

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

摘要： A recording/reproducing method and a recording/reproducing apparatus for magnetic tapes are provided as a recording/reproducing technique suitable for recording density enhancement of magnetic tapes. The method and apparatus are capable of correctly recording and reproducing data without causing errors even with occurrence of size changes in the widthwise direction of a magnetic tape. In the recording/reproducing method for magnetic tapes in which data tracks and servo tracks are provided, a tape width is detected and a value of the tape width is stored during data recording, and data reproduction is performed while tape tension is controlled so that the tape width during data reproduction is maintained equal to the tape width during data recording.

摘要翻译： 提供了用于磁带的记录/再现方法和记录/再现装置，作为适用于记录磁带的密度增强的记录/再现技术。 该方法和装置能够正确地记录和再现数据，而不会在磁带的宽度方向上发生尺寸变化的同时引起误差。 在提供数据轨道和伺服轨道的磁带的记录/再现方法中，在数据记录期间检测带宽并且存储带宽的值，并且在控制带张力的同时执行数据再现， 在数据记录期间，数据再现期间的带宽保持等于带宽度。

公开(公告)号：US20050254162A1

公开(公告)日：2005-11-17

申请号：US11129400

申请日：2005-05-16

申请人： Masao Okafuji ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Hiroyuki Mitsuhashi ,  Seigi Kawarai ,  Sadamu Kuse

发明人： Masao Okafuji ,  Tsugihiro Doi ,  Tetsutaro Inoue ,  Hiroyuki Mitsuhashi ,  Seigi Kawarai ,  Sadamu Kuse

IPC分类号： G11B5/584 ,  G11B5/09 ,  G11B5/29

CPC分类号： G11B5/584 ,  G11B5/00813 ,  G11B5/00878

摘要： In a recording/reproducing method of a magnetic tape in a tracking servo system, a recording density of each data track is increased while inhibiting occurrence of a recording/reproducing error caused by a size change of a magnetic tape in the width direction. Data tracks are each set to have a smaller track width stepwise as closer to servo tracks (41T-1 to 41T-5 etc.) in the width direction of a magnetic tape 1. With such a setting, the width of the data tracks (A1-41T-1 to A1-41T-5 etc.) closest to the servo tracks (41T-1 to 41T-5) can be minimized, thereby enabling a significant increase in number of the data tracks. Further, even when the size of the magnetic tape 1 changes in the width direction due to a change in external environment such as a temperature or moisture, to lead to large displacement of the data tracks (A8-41T-1 to A8-41T-5) distant from the servo tracks (41T-1 to 41T-5), the data head (A8) can be readily aligned to face the data tracks (A8-41T-1 to A8-41T-5) in the reproduction by an increased portion of the width size of the data tracks (A8-41T-1 to A8-41T-5), and it is thereby possible to ensure reading of data signals from the data tracks (A8-41T-1 to A8-41T-5) so as to improve reproduction accuracy.

摘要翻译： 在跟踪伺服系统中的磁带的记录/再现方法中，增加每个数据磁道的记录密度，同时抑制由磁带在宽度方向上的尺寸变化引起的记录/再现错误的发生。 数据磁道各自被设置为具有比磁带1的宽度方向更靠近伺服磁道（41T-1至41T-5等）的逐渐减小的磁迹宽度。 通过这样的设定，可以使最靠近伺服轨道（41T-1〜41T-5）的数据轨迹（A 1〜41 T 1〜A 1〜41 T 5等）的宽度最小化， 从而能够显着增加数据轨道的数量。 此外，即使由于外部环境（如温度或水分）的变化而导致磁带1的宽度方向的变化，导致数据磁道的大的位移（A 8〜41 T 1〜A 8 - 41 T-5），数据头（A 8）可以容易地对准数据磁道（A 8 - 41 T 1到A 8） - 41 T-5）在数据轨道（A 8 - 41 T 1至A 8 - 41 T-5）的宽度大小的增加部分的再现中，从而可以确保读取数据信号 从数据轨道（A 8 - 41 T 1到A 8 - 41 T-5），以提高再现精度。

公开(公告)号：US20050170214A1

公开(公告)日：2005-08-04

申请号：US10995314

申请日：2004-11-24

申请人： Tsugihiro Doi ,  Tetsutaro Inoue ,  Hisanobu Mikamo ,  Seigi Kawarai ,  Sadamu Kuse

发明人： Tsugihiro Doi ,  Tetsutaro Inoue ,  Hisanobu Mikamo ,  Seigi Kawarai ,  Sadamu Kuse

IPC分类号： G11B5/72 ,  G11B5/84 ,  G11B5/68

CPC分类号： G11B5/8408 ,  G11B5/72

摘要： There is provided a magnetic recording medium comprising a flexible non-magnetic substrate, and a magnetic layer containing magnetic particles, formed on at least one surface of the flexible non-magnetic substrate, and this magnetic recording medium is characterized in that an uppermost layer formed on the side of the magnetic layer is a non-magnetic layer with a thickness of 1 to 50 nm, which contains a resin and has a surface roughness (P-V) of 2 to 20 nm. This magnetic recording medium is excellent in high density recording performance, and is highly reliable in durability.

摘要翻译： 提供了一种磁性记录介质，其包括柔性非磁性基板和形成在柔性非磁性基板的至少一个表面上的含有磁性颗粒的磁性层，该磁性记录介质的特征在于形成了最上层 在磁性层的一侧是厚度为1〜50nm的非磁性层，其含有树脂，表面粗糙度（PV）为2〜20nm。 该磁记录介质具有优异的高密度记录性能，并且耐久性高度可靠。

公开(公告)号：US5725943A

公开(公告)日：1998-03-10

申请号：US222341

申请日：1994-04-04

申请人： Junichi Hirata ,  Sadamu Kuse ,  Seigi Kawarai

发明人： Junichi Hirata ,  Sadamu Kuse ,  Seigi Kawarai

IPC分类号： G11B5/78 ,  C08J5/18 ,  C09D5/23 ,  G11B5/62 ,  G11B5/73 ,  G11B5/735 ,  G11B23/04 ,  G11B23/087 ,  G11B5/704

CPC分类号： C08J5/18 ,  G11B23/04 ,  G11B5/62 ,  G11B5/7305 ,  G11B5/735 ,  C08J2367/02 ,  Y10S428/90 ,  Y10T428/31786

摘要： A magnetic tape cartridge comprising a magnetic tape suitable for long time recording which has a coefficient of thermal shrinkage of 0.6% or less the coefficient being measured after the tape is wound around a hub at least 300 turns and kept at 105.degree. C. for 30 minutes.

摘要翻译： 一种磁带盒，包括适于长时间记录的磁带，该磁带的热收缩系数在磁带缠绕在轮毂上之后测量的系数为0.6％或更小，并且在105℃下保持30秒 分钟。

公开(公告)号：US09267047B2

公开(公告)日：2016-02-23

申请号：US13581203

申请日：2010-09-13

申请人： Katsuyuki Kito ,  Hideyuki Tanaka ,  Sadamu Kuse ,  Yoshiro Nishimura

发明人： Katsuyuki Kito ,  Hideyuki Tanaka ,  Sadamu Kuse ,  Yoshiro Nishimura

IPC分类号： C08F2/46 ,  C08G61/04 ,  C09D11/38 ,  C09D11/101 ,  B41M7/00

CPC分类号： C09D11/38 ,  B41M7/0045 ,  C09D11/101 ,  Y10T428/24802

摘要： Disclosed is an ink composition for clear layer formation having excellent adhesion properties on substrates, recording layers, and clear layers, as well as excellent overcoat characteristics and refinishing properties. Further disclosed are a coating method for the ink composition, and a printed article formed using the ink composition. The ink composition for clear layer formation is used for forming at least one clear layer on a substrate, or on a printed article on which a printed coating film is formed on a substrate as a recording layer. The ink composition for clear layer formation is characterised in that: the surface free energy of the substrate is 30-45 (mJ/m2); the surface free energy of the recording layer is 40-50 (mJ/m2); the contact angle of the ink composition to the substrate is 30-65 degrees, the contact angle of the ink composition to the recording layer is 40-55 degrees, and the contact angle of the ink composition to the clear layer is 45-60 degrees.

摘要翻译： 公开了一种用于透明层形成的油墨组合物，其在基材，记录层和透明层上具有优异的粘合性，以及优异的外涂层特性和修补性。 进一步公开了用于油墨组合物的涂布方法和使用该油墨组合物形成的印刷品。 用于透明层形成的油墨组合物用于在基材上形成至少一个透明层，或在基材上形成印刷涂膜的印刷品上作为记录层。 用于透明层形成的油墨组合物的特征在于：基材的表面自由能为30-45（mJ / m 2）; 记录层的表面自由能为40-50（mJ / m2）; 油墨组合物与基材的接触角为30-65度，油墨组合物与记录层的接触角为40-55度，油墨组合物与透明层的接触角为45-60度 。

公开(公告)号：US08130463B2

公开(公告)日：2012-03-06

申请号：US12128156

申请日：2008-05-28

申请人： Masao Fujita ,  Kenji Tanaka ,  Sadamu Kuse

发明人： Masao Fujita ,  Kenji Tanaka ,  Sadamu Kuse

IPC分类号： G11B21/02

CPC分类号： G11B5/00813 ,  G11B5/02 ,  G11B5/022 ,  G11B2005/0005

摘要： A data recording apparatus of the present invention includes a head that records data signals by magnetizing a magnetic tape 10 and a recording control portion that controls the recording operation by causing recording current to flow to the head. The recording control portion controls the operation of the head, so that in the magnetic tape 10, which is direct current demagnetized continuously in the longitudinal direction, a magnetic field is formed intermittently in an opposite direction to the magnetization direction of the direct current demagnetization. Thus, when recording data signals on the magnetic recording medium, it is possible to make the current flowing to the head small and to realize apparatus power consumption reductions, load reductions for the head and circuitry, and reduction in crosstalk noise from the head chip used for writing to the head chip used for reading.

摘要翻译： 本发明的数据记录装置包括通过磁化磁带10记录数据信号的磁头和通过使记录电流流向磁头来控制记录操作的记录控制部分。 记录控制部分控制磁头的操作，使得在沿着纵向方向连续地退磁的磁带10中，在与直流退磁的磁化方向相反的方向间歇地形成磁场。 因此，当在磁记录介质上记录数据信号时，可以使流过头部的电流变小，并实现设备功耗降低，头部和电路的负载降低，以及减少来自头部芯片的串扰噪声 用于写入用于阅读的头部芯片。

公开(公告)号：US20110292539A1

公开(公告)日：2011-12-01

申请号：US13115163

申请日：2011-05-25

申请人： Masao FUJITA ,  Sadamu Kuse

发明人： Masao FUJITA ,  Sadamu Kuse

IPC分类号： G11B15/48 ,  G11B5/584

CPC分类号： G11B5/4893 ,  G11B5/00813 ,  G11B5/40

摘要： A magnetic tape driving apparatus, which does not cause damage to either a magnetic head or a magnetic tape when making transition of the magnetic tape from a stopped state to a running state, when making transition of the magnetic tape from a running state to a stopped state, or when reversing the transportation direction of the magnetic tape, is provided. In a state where any one of a magnetic head and a magnetic tape moves and the other rests (i.e., a state where static friction may occur), such as at the time of starting transportation of the magnetic tape, at the time of stopping the tape in a running state, and at the time of reversing the transportation direction of the magnetic tape, a head displacing portion vibrates the magnetic head under the control by a displacement control portion, and thus no static friction occurs between the magnetic head and the magnetic tape. Therefore, the risk of causing damage to the magnetic head (such as an MR head unit equipped with an MR element) or the magnetic tape can be reduced.

摘要翻译： 一种磁带驱动装置，当使磁带从运行状态转移到停止状态时，在使磁带从停止状态转移到运行状态时不会对磁头或磁带造成损坏 状态，或者当使磁带的运送方向反转时。 在磁头和磁带中的任何一个移动的状态下，另一个位置（即，可能发生静摩擦的状态），例如在开始运送磁带时，在停止时 胶带处于运行状态，并且在反转磁带的传送方向时，磁头位移部分在位移控制部分的控制下使磁头振动，从而在磁头和磁体之间不产生静摩擦 胶带。 因此，可以减少对磁头（例如配备有MR元件的MR头单元）或磁带造成损害的风险。