公开(公告)号：US5776602A

公开(公告)日：1998-07-07

申请号：US546833

申请日：1995-10-23

申请人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Sadayuki Okazaki ,  Masaru Odagiri ,  Kiyoshi Takahashi ,  Mikio Murai

发明人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Sadayuki Okazaki ,  Masaru Odagiri ,  Kiyoshi Takahashi ,  Mikio Murai

IPC分类号： G11B5/66 ,  G11B5/72 ,  G11B5/725

CPC分类号： G11B5/72 ,  G11B5/725 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/30

摘要： A magnetic recording medium of the present invention includes: a non-magnetic substrate; a ferromagnetic thin metal layer formed on the non-magnetic substrate; and a carbon layer and a lubricant layer in contact with the carbon layer, which is formed above the ferromagnetic thin metal layer so that the lubricant layer is an outermost layer, wherein the carbon layer contains nitrogen atoms, a Raman spectrum of the carbon layer has a peak A in the range of about 1310 to about 1410 cm.sup.-1 and a peak B in the range of about 1520 to about 1570 cm.sup.-1, and a ratio of integrated intensities of the peak A to the peak B is in the range of about 1.2 to about 2.0.

摘要翻译： 本发明的磁记录介质包括：非磁性基板; 形成在非磁性基板上的铁磁性薄金属层; 以及与铁层接触的碳层和润滑剂层，其形成在铁磁性薄金属层的上方，使得润滑层为最外层，其中碳层含有氮原子，碳层的拉曼光谱具有 在约1310至约1410cm -1范围内的峰A和约1520至约1570cm -1范围内的峰B，峰A与峰B的积分强度之比在该范围内 为约1.2至约2.0。

公开(公告)号：US5589263A

公开(公告)日：1996-12-31

申请号：US365216

申请日：1994-12-28

申请人： Hideyuki Ueda ,  Hiroshi Seki ,  Kenji Kuwahara ,  Mikio Murai ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Sadayuki Okazaki

发明人： Hideyuki Ueda ,  Hiroshi Seki ,  Kenji Kuwahara ,  Mikio Murai ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Sadayuki Okazaki

IPC分类号： G11B5/64 ,  G11B5/72 ,  G11B5/84

CPC分类号： G11B5/65 ,  G11B5/72 ,  G11B5/8408 ,  Y10S428/90 ,  Y10T428/265 ,  Y10T428/30 ,  Y10T428/31 ,  Y10T428/3154 ,  Y10T428/31678

摘要： A ferromagnetic metal thin film recording medium having a nonmagnetic substrate, a ferromagnetic metal thin film formed on the nonmagnetic substrate, a dry etched layer which is formed in a surface layer of the ferromagnetic metal thin film and contains oxygen atoms in a higher concentration than the remaining part of the ferromagnetic metal thin film, a hard carbonaceous film formed on the dry etched layer of the ferromagnetic metal thin film, a lubricant layer formed on said hard carbonaceous film, and optionally a modified layer which is formed on the hard carbonaceous film and has a thickness of less than 3 nm, and comprises carbon, nitrogen and oxygen atoms with an atomic ratio of nitrogen to carbon being at least 0.8%, which recording medium has improved running stability, durability and weatherability while maintaining electromagnetic conversion characteristics.

摘要翻译： 具有非磁性基板的铁磁性金属薄膜记录介质，形成在非磁性基板上的强磁性金属薄膜，形成在强磁性金属薄膜的表面层中并且含有比 铁磁金属薄膜的剩余部分，形成在强磁性金属薄膜的干蚀刻层上的硬质碳质膜，形成在所述硬质碳质膜上的润滑剂层，以及可选地形成在硬质碳膜上的改性层，以及 具有小于3nm的厚度，并且包含氮与碳的原子比至少为0.8％的碳，氮和氧原子，该记录介质具有改善的运行稳定性，耐久性和耐候性，同时保持电磁转换特性。

公开(公告)号：US5798135A

公开(公告)日：1998-08-25

申请号：US724513

申请日：1996-09-30

申请人： Hideyuki Ueda ,  Hiroshi Seki ,  Kenji Kuwahara ,  Mikio Murai ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Sadayuki Okazaki

发明人： Hideyuki Ueda ,  Hiroshi Seki ,  Kenji Kuwahara ,  Mikio Murai ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Sadayuki Okazaki

IPC分类号： G11B5/64 ,  G11B5/72 ,  G11B5/84 ,  G11B5/85

CPC分类号： G11B5/65 ,  G11B5/72 ,  G11B5/8408 ,  Y10S428/90 ,  Y10T428/265 ,  Y10T428/30 ,  Y10T428/31 ,  Y10T428/3154 ,  Y10T428/31678

摘要： A ferromagnetic metal thin film recording medium having a nonmagnetic substrate, a ferromagnetic metal thin film formed on the nonmagnetic substrate, a dry etched layer which is formed in a surface layer of the ferromagnetic metal thin film and contains oxygen atoms in a higher concentration than the remaining part of the ferromagnetic metal thin film, a hard carbonaceous film formed on the dry etched layer of the ferromagnetic metal thin film, a lubricant layer formed on said hard carbonaceous film, and optionally a modified layer which is formed on the hard carbonaceous film and has a thickness of less than 3 nm, and comprises carbon, nitrogen and oxygen atoms with an atomic ratio of nitrogen to carbon being at least 0.8%, which recording medium has improved running stability, durability and weatherability while maintaining electromagnetic conversion characteristics.

摘要翻译： 具有非磁性基板的铁磁性金属薄膜记录介质，形成在非磁性基板上的强磁性金属薄膜，形成在强磁性金属薄膜的表面层中并且含有比 铁磁金属薄膜的剩余部分，形成在强磁性金属薄膜的干蚀刻层上的硬质碳质膜，形成在所述硬质碳质膜上的润滑剂层，以及可选地形成在硬质碳膜上的改性层，以及 具有小于3nm的厚度，并且包含氮与碳的原子比至少为0.8％的碳，氮和氧原子，该记录介质具有改善的运行稳定性，耐久性和耐候性，同时保持电磁转换特性。

公开(公告)号：US5540957A

公开(公告)日：1996-07-30

申请号：US472297

申请日：1995-06-07

申请人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Mikio Murai ,  Yukikazu Ohchi

发明人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Mikio Murai ,  Yukikazu Ohchi

IPC分类号： G11B5/72 ,  H05H1/00

CPC分类号： G11B5/72 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/30

摘要： A magnetic recording media comprising a non-magnetic substrate, a ferromagnetic thin film on the non-magnetic substrate, a hard carbon film on the ferromagnetic thin film, a modified layer of which atomic ratio of nitrogen/carbon is 0.8% or more, and of which thickness is less than 3 nm on the hard carbon film, and a lubricant layer on the modified layer, has excellent electromagnetic conversion characteristic, running stability, durability, and weatherability.

摘要翻译： 一种磁性记录介质，包括非磁性基板，非磁性基板上的铁磁性薄膜，铁磁性薄膜上的硬质碳膜，氮/碳的原子比为0.8％以上的改性层，以及 在硬碳膜上的厚度小于3nm，改性层上的润滑剂层具有优异的电磁转换特性，运行稳定性，耐久性和耐候性。

公开(公告)号：US5637393A

公开(公告)日：1997-06-10

申请号：US95008

申请日：1993-07-23

申请人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Mikio Murai ,  Yukikazu Ohchi

发明人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Mikio Murai ,  Yukikazu Ohchi

IPC分类号： G11B5/72 ,  G11B5/66 ,  B32B5/16

CPC分类号： G11B5/72 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/30

摘要： A magnetic recording medium comprising a non-magnetic substrate, a ferromagnetic thin film on the non-magnetic substrate, a hard carbon film on the ferromagnetic thin film, a modified layer of which atomic ratio of nitrogen/carbon is 0.8% or more, and of which thickness is less than 3 nm on the hard carbon film, and a lubricant layer on the modified layer, has excellent electromagnetic conversion characteristic, running stability, durability, and weatherability.

摘要翻译： 一种磁记录介质，包括非磁性基板，非磁性基板上的铁磁性薄膜，铁磁性薄膜上的硬质碳膜，氮/碳的原子比为0.8％以上的改性层，以及 在硬碳膜上的厚度小于3nm，改性层上的润滑剂层具有优异的电磁转换特性，运行稳定性，耐久性和耐候性。

公开(公告)号：US5496595A

公开(公告)日：1996-03-05

申请号：US325067

申请日：1994-10-19

申请人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Mikio Murai

发明人： Hideyuki Ueda ,  Kenji Kuwahara ,  Hiroshi Seki ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Mikio Murai

IPC分类号： C23C16/50 ,  C23C16/27 ,  G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/735 ,  G11B5/84 ,  H01L21/205 ,  H05H1/24 ,  G11B5/00

CPC分类号： G11B5/8404 ,  G11B5/735

摘要： A magnetic recording medium comprising a back coating layer formed on a surface reverse to a magnetic layer and a carbonaceous film which is formed on the back coating layer and contains fluorine atoms and silicon atoms and/or nitrogen atoms and in which a concentration of fluorine atoms decreases in a depth direction from a surface of the carbonaceous film, while a concentration of the silicon and/or nitrogen atoms increases in the depth direction from the surface of the carbonaceous film, which recording medium has improved running stability, durability and weatherability while electromagnetic conversion characteristics are maintained.

摘要翻译： 一种磁记录介质，包括在与磁性层相反的表面上形成的背涂层和形成在背涂层上并含有氟原子和硅原子和/或氮原子并且其中氟原子的浓度的碳质膜 同时硅和/或氮原子的浓度在碳质膜的表面的深度方向上增加，该记录介质具有改善的运行稳定性，耐久性和耐候性，同时电磁 保持转换特性。

公开(公告)号：US5494742A

公开(公告)日：1996-02-27

申请号：US229428

申请日：1994-04-12

申请人： Hiroshi Seki ,  Kenji Kuwahara ,  Hideyuki Ueda ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Mikio Murai

发明人： Hiroshi Seki ,  Kenji Kuwahara ,  Hideyuki Ueda ,  Kiyosi Takahasi ,  Masaru Odagiri ,  Mikio Murai

IPC分类号： C23C16/22 ,  C23C16/50 ,  G11B5/66 ,  G11B5/72 ,  G11B5/725 ,  B32B5/16 ,  B32B9/00 ,  B32B9/04

CPC分类号： G11B5/725 ,  G11B5/72 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/30 ,  Y10T428/31663

摘要： A magnetic recording medium comprising a non-magnetic substrate, a ferromagnetic metal film formed on said non-magnetic substrate, a carbon film which is formed on said ferromagnetic metal film and in which a concentration of at least one element selected from the group consisting of silicon, phosphorus, sulfur, tin and indium is or concentrations of boron and at least one element selected from the group consisting of tin and indium are decreased in a depth direction from the surface of said carbon film, and a lubricant layer formed on said carbon film, which medium has improved running durability and corrosion resistance.

摘要翻译： 一种磁记录介质，包括非磁性基板，形成在所述非磁性基板上的强磁性金属膜，形成在所述铁磁金属膜上的碳膜，其中至少一种元素的浓度选自 硅，磷，硫，锡和铟是从碳膜的表面在深度方向上的硼浓度和选自锡和铟的至少一种元素，并且形成在所述碳上的润滑剂层 薄膜，哪种介质具有改善的运行耐久性和耐腐蚀性。

公开(公告)号：US5670107A

公开(公告)日：1997-09-23

申请号：US554243

申请日：1995-11-08

申请人： Kenji Kuwahara ,  Kiyosi Takahasi ,  Hideyuki Ueda ,  Noriyasu Echigo ,  Mikio Murai ,  Masaru Odagiri

发明人： Kenji Kuwahara ,  Kiyosi Takahasi ,  Hideyuki Ueda ,  Noriyasu Echigo ,  Mikio Murai ,  Masaru Odagiri

IPC分类号： G11B5/84 ,  B29C71/02

CPC分类号： G11B5/84 ,  G11B5/8404

摘要： A magnetic recording medium produced by treating a magnetic recording medium which comprises a non-magnetic substrate and a magnetic layer formed on said substrate in an atmosphere kept at a temperature of at least 50.degree. C., with applying a tension of 1 gf. or less per 10 mm width to said magnetic recording medium in a treating time which is in a range on or above a line having a slope of at least 5000 in terms of .DELTA.ln(L)/.DELTA.(1/T) and passing a point of 0.5 second at 100.degree. C., when ln(L) is Arrhenius plotted against an inverse of an absolute temperature T (1/T), which medium has suppressed change of magnetic properties with time and improved corrosion resistance.

摘要翻译： 通过在保持在至少50℃的温度的气氛中，施加1gf的张力处理包括非磁性基底和形成在所述基底上的磁性层的磁记录介质而制备的磁记录介质。 处理时间在DELTA ln（L）/ DELTA（1 / T）的斜率至少为5000的线上或上方的范围内的处理时间内，通过 点在100℃为0.5秒，当ln（L）是Arrhenius相对于绝对温度T（1 / T）的倒数绘制时，该介质已经抑制磁性随时间的变化和改善的耐腐蚀性。

公开(公告)号：US5591481A

公开(公告)日：1997-01-07

申请号：US534406

申请日：1995-09-27

申请人： Kiyoshi Takahashi ,  Mikio Murai ,  Masaru Odagiri ,  Hideyuki Ueda

发明人： Kiyoshi Takahashi ,  Mikio Murai ,  Masaru Odagiri ,  Hideyuki Ueda

IPC分类号： G11B5/72 ,  G11B5/725

CPC分类号： G11B5/725 ,  G11B5/72

摘要： A protection film and a lubricant layer of monomers are formed successively on a ferromagnetic metal thin film formed on a nonmagnetic substrate or on a base of sliding member. Then, the lubricant layer is irradiated with radicals or atomic gas in the plasma discharge or with an electron beam to form graft polymers in the lubricant layer, and the protection film and the lubricant layer are bonded chemically. Thus, the reliability of a magnetic recording medium and a sliding member can be improved.

摘要翻译： 在形成于非磁性基板上的铁磁性金属薄膜上或滑动部件的基部上，依次形成保护膜和润滑剂层。 然后，在等离子体放电或电子束中用自由基或原子气体照射润滑剂层，以在润滑剂层中形成接枝聚合物，并且保护膜和润滑剂层化学键合。 因此，可以提高磁记录介质和滑动构件的可靠性。

公开(公告)号：US5364690A

公开(公告)日：1994-11-15

申请号：US964861

申请日：1992-10-22

申请人： Kiyoshi Takahashi ,  Mikio Murai ,  Masaru Odagiri ,  Hideyuki Ueda ,  Yukikazu Ohchi ,  Tatsuya Hiwatashi

发明人： Kiyoshi Takahashi ,  Mikio Murai ,  Masaru Odagiri ,  Hideyuki Ueda ,  Yukikazu Ohchi ,  Tatsuya Hiwatashi

IPC分类号： G11B5/64 ,  G11B5/72 ,  G11B5/73 ,  G11B5/00

CPC分类号： G11B5/72 ,  Y10S428/90 ,  Y10T428/24942 ,  Y10T428/24975 ,  Y10T428/24983 ,  Y10T428/265 ,  Y10T428/30

摘要： A magnetic recording medium comprising: a non-magnetic substrate; a ferromagnetic metal thin film provided on the non-magnetic substrate; a filmlike first carbon layer provided on the ferromagnetic metal thin film; and a hard and amorphous second carbon layer provided on the first carbon layer; the first and second carbon layers having first and second Raman spectra based on Raman spectrophotometry, respectively; assuming that when each of the first and second Raman spectra is decomposed into a first band of Gaussian function having a peak in the vicinity of 1380 cm.sup.-1 and a second band of Gaussian function having a peak in the vicinity of 1550 cm.sup.-1 in X-Y rectangular coordinates with an X-axis expressed in cm.sup.-1 and a Y-axis indicative of spectral intensity, a ratio of an area enclosed by the first band and the X-axis to an area enclosed by the second band and the X-axis represents "relative intensity", the first carbon layer has a relative intensity of 2 to 20, while the second carbon layer has a relative intensity of 0.8 to 3, a Vickers hardness of not less than 1,000 kg/mm.sup.2 and a thickness of 50 to 300 .ANG..

摘要翻译： 一种磁记录介质，包括：非磁性基板; 设置在非磁性基板上的铁磁金属薄膜; 设置在强磁性金属薄膜上的薄膜状的第一碳层; 以及设置在所述第一碳层上的硬质和无定形的第二碳层; 第一和第二碳层分别具有基于拉曼分光光度法的第一和第二拉曼光谱; 假设当第一和第二拉曼光谱中的每一个被分解成具有在1380cm -1附近的峰的第一高斯函数带和在1550cm -1附近具有峰的第二带高斯函数时 具有以cm-1表示的X轴和表示光谱强度的Y轴的XY直角坐标，由第一带和X轴包围的面积与由第二带包围的面积的比率， 轴表示“相对强度”，第一碳层的相对强度为2〜20，第二碳层的相对强度为0.8〜3，维氏硬度为1000kg / mm2以上，厚度为50 到300 ANGSTROM。