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1. 发明申请

US20070159722A1 MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING CASSETTE 失效
标题翻译：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。

2. 发明申请

US20080107921A1 MAGNETIC TAPE AND MAGNETIC TAPE CARTRIDGE 审中-公开
标题翻译：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。

3. 发明授权

US07291409B2 Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette 有权
标题翻译：使用具有芯部的磁性粉末和包括稀土元素和磁记录盒的外层部分的磁记录介质
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。

4. 发明授权

US07445858B2 Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette 失效
标题翻译：使用具有芯部的磁性粉末和包括稀土元素和磁记录盒的外层部分的磁记录介质
公开(公告)号：US07445858B2
公开(公告)日：2008-11-04
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： G11B5/706 , 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 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.
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。

5. 发明授权

US07267896B2 Magnetic tape and magnetic tape cartridge 有权
标题翻译：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。

6. 发明申请

US20050276999A1 Magnetic recording medium and magnetic recording cassette 有权
标题翻译：磁记录介质和磁记录盒
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。

7. 发明授权

US07494728B2 Magnetic tape and magnetic tape cartridge 有权
标题翻译：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。

8. 发明申请

US20060003191A1 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.

9. 发明授权

US07593177B2 Recording/reproducing method of magnetic tape 失效
标题翻译：磁带的记录/再现方法
公开(公告)号：US07593177B2
公开(公告)日：2009-09-22
申请号：US11771615
申请日：2007-06-29
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： G11B5/09 , G11B5/584
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）的逐渐减小的轨道宽度。通过这样的设置，数据磁道的宽度最靠近伺服磁道（41T-1至41T-5）的A1-41T-1至A1-41T-5等）可以最小化，从而可以显着增加数据磁道的数量。此外，即使当磁带1的尺寸由于诸如温度或湿度等外部环境的变化而在宽度方向上变化时，为了导致数据磁道的大的位移（A8-41T-1至A8-41T- 5）远离伺服磁道（41T-1至41T-5），数据磁头（A8）可以容易地对准数据磁道（A8-41T-1到A8-41T-5）数据磁道（A8-41T-1〜A8〜41T-5）的宽度尺寸的增加部分，从而可以确保从数据磁道读取数据信号（A8〜41T-1〜A8〜41T- 5），以提高再现精度。

10. 发明申请

US20050254162A1 Recording/reproducing method of magnetic tape 有权
标题翻译：磁带的记录/再现方法
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。

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