公开(公告)号：US4514451A

公开(公告)日：1985-04-30

申请号：US514607

申请日：1983-07-18

申请人： Takashi Suzuki ,  Koichi Shinohara ,  Masaru Odagiri ,  Takashi Fujita ,  Shigeki Kawase

发明人： Takashi Suzuki ,  Koichi Shinohara ,  Masaru Odagiri ,  Takashi Fujita ,  Shigeki Kawase

IPC分类号： G11B5/66 ,  C08L67/02 ,  G11B5/64 ,  G11B5/73 ,  G11B5/84 ,  H01F41/14 ,  B32B3/00 ,  G11B5/70

CPC分类号： G11B5/7315 ,  G11B5/64 ,  G11B5/84 ,  H01F41/14 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24405 ,  Y10T428/24446 ,  Y10T428/24975 ,  Y10T428/24992 ,  Y10T428/31 ,  Y10T428/31681

摘要： A magnetic recording media comprises a polyester substrate having 1000/mm.sup.2 or more protrusions of polyester oligomer, and a ferromagnetic thin film of 400 .ANG. or larger thickness both formed on the surface of the polyester substrate; the recording media has substantially no squealing even at 30.degree. C. at over 80% relative humidity.

摘要翻译： 磁记录介质包括聚酯基材的表面上形成有1000 / mm2以上的聚酯低聚物的突起的聚酯基材和400以上的厚度的铁磁性薄膜， 即使在30℃，超过80％的相对湿度下，记录介质也基本上没有尖叫声。

公开(公告)号：US4564549A

公开(公告)日：1986-01-14

申请号：US657056

申请日：1984-10-03

申请人： Takashi Suzuki ,  Koichi Shinohara ,  Masaru Odagiri ,  Takashi Fujita

发明人： Takashi Suzuki ,  Koichi Shinohara ,  Masaru Odagiri ,  Takashi Fujita

IPC分类号： G11B5/72 ,  G11B5/73 ,  B32B3/00 ,  G11B5/70

CPC分类号： G11B5/7305 ,  G11B5/72 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24405 ,  Y10T428/24446 ,  Y10T428/24942

摘要： A thin film of a ferromagnetic metal or alloy and containing oxygen is formed over the surface of an elongated polyester film, said surface being formed with worm-like or particle-like projections consisting of cured high-molecular weight compounds.

摘要翻译： 在细长的聚酯膜的表面上形成铁磁性金属或合金的含有氧的薄膜，所述表面形成有由固化的高分子量化合物组成的蠕虫状或颗粒状的突起。

公开(公告)号：US5023739A

公开(公告)日：1991-06-11

申请号：US308765

申请日：1989-02-10

申请人： Koichi Shinohara ,  Takashi Suzuki ,  Masao Kawagishi ,  Nobuo Satoh ,  Takeshi Murakami ,  Takashi Fujita

发明人： Koichi Shinohara ,  Takashi Suzuki ,  Masao Kawagishi ,  Nobuo Satoh ,  Takeshi Murakami ,  Takashi Fujita

IPC分类号： G11B23/087 ,  G11B23/50 ,  G11B33/14

CPC分类号： G11B33/1446 ,  G11B23/08785 ,  G11B23/502

摘要： A tape cassette for a magnetic recording tape having metallic magnetic recording layer is provided with a gas trapping layer which is disposed on a portion of the cassette near the path of the magnetic recording tape stretched between a pair of reels. The trapping layer has a trapping tendency which is at least equivalent to that of the magnetic recording tape. Any corrosive gas components coming into the cassette is adsorbed by and made to react with the trapping layer so as to reduce the concentration of the corrosive gas reaching the metallic magnetic recording layer, thus preventing degradation of the magnetic recording layer and ensuring that recording is conducted with high recording density.

摘要翻译： 具有金属磁记录层的磁记录带的带盒设置有气体捕获层，该气体捕获层设置在磁带记录带的在一对卷轴之间延伸的路径附近的一部分上。 捕获层具有至少等同于磁记录带的捕获趋势。 进入该盒的任何腐蚀性气体组分都被吸收层吸收并与捕获层反应，以减少到达金属磁记录层的腐蚀性气体的浓度，从而防止磁记录层的劣化并确保进行记录 具有高记录密度。

公开(公告)号：US4578729A

公开(公告)日：1986-03-25

申请号：US434600

申请日：1982-10-15

申请人： Takashi Suzuki ,  Hiroshi Fujimori ,  Masaru Odagiri

发明人： Takashi Suzuki ,  Hiroshi Fujimori ,  Masaru Odagiri

IPC分类号： G11B5/62 ,  G11B5/73 ,  G11B5/84 ,  G11B5/70

CPC分类号： G11B5/62 ,  G11B5/7305 ,  G11B5/84 ,  Y10S428/90 ,  Y10T428/24612 ,  Y10T428/25

摘要： A magentic recording medium in which a thin ferromagnetic film is formed over a strip or sheet of plastic film whose surface is formed with grain-, rumple- or worm-like nodules into which may be dispersed finely divided particles of the diameter ranging from 0.01 to 0.2 .mu.m. In the case of a thin ferromagnetic metal film type recording medium, steep protrusions of the height ranging from 100 to 2,000 .ANG. are distributed over the surface at the average density of 10.sup.4 to 10.sup.6 per mm.sup.2.

摘要翻译： 一种磁性记录介质，其中薄的铁磁膜形成在其表面形成有颗粒状，um状或蠕虫状结节的塑料薄膜条或片上，其中可以将直径范围为0.01至 0.2亩。 在薄铁磁性金属膜型记录介质的情况下，高度范围为从100到2,000安培的陡峭突起以平均密度分布在表面上，每平方毫米为104到106。

公开(公告)号：US5182132A

公开(公告)日：1993-01-26

申请号：US621464

申请日：1990-12-03

申请人： Mikio Murai ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Yoshiaki Kai ,  Takashi Suzuki ,  Toshiaki Kunieda

发明人： Mikio Murai ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Yoshiaki Kai ,  Takashi Suzuki ,  Toshiaki Kunieda

IPC分类号： C23C16/26 ,  C23C16/509 ,  C23C16/517 ,  G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84

CPC分类号： C23C16/517 ,  C23C16/26 ,  C23C16/509 ,  G11B5/72 ,  G11B5/725 ,  Y10S427/106 ,  Y10S428/90 ,  Y10T428/24372 ,  Y10T428/30 ,  Y10T428/31678

摘要： In making a magnetic recording medium, a diamond-like carbon film is formed stably with high product efficiency such as 200 .ANG./sec, without occurrence of irregular discharge, and improved still durability and reduced head contamination are achieved by utilizing a.c. plasma discharge or a.c. plasma discharge superimposed by d.c. power and the lubricant film.

公开(公告)号：US4647507A

公开(公告)日：1987-03-03

申请号：US791075

申请日：1985-10-24

申请人： Takashi Suzuki ,  Masaru Odagiri ,  Yoshiaki Kai ,  Hisayo Kitamaki ,  Akio Tomago

发明人： Takashi Suzuki ,  Masaru Odagiri ,  Yoshiaki Kai ,  Hisayo Kitamaki ,  Akio Tomago

IPC分类号： G11B5/72

CPC分类号： G11B5/72 ,  Y10S428/90 ,  Y10T428/3154 ,  Y10T428/31544

摘要： A magnetic recording medium wherein a thin layer comprising an organic compound having at least one carboxyl or mercapto group, at least one fluoroalkyl group having 3 or more carbon atoms and at least one aliphatic alkyl group having 8 or more carbon atoms on its molecular terminals is formed on an oxygen-containing thin film of a ferromagnetic metal.The magnetic recording medium of the present invention is suitable for use as the magnetic recording media of magnetic tape, magnetic disk and the like and most suitable for use in rotating head type video tape recorders.

摘要翻译： 一种磁记录介质，其中包含具有至少一个羧基或巯基的有机化合物，至少一个具有3个或更多个碳原子的氟代烷基和至少一个在其分子末端具有8个或更多个碳原子的脂族烷基的薄层， 形成在铁磁性金属的含氧薄膜上。 本发明的磁记录介质适用于磁带，磁盘等的磁记录介质，最适用于旋转磁头型录像机。

公开(公告)号：US5443888A

公开(公告)日：1995-08-22

申请号：US174685

申请日：1993-12-28

申请人： Mikio Murai ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Yoshiaki Kai ,  Takashi Suzuki ,  Toshiaki Kunieda

发明人： Mikio Murai ,  Kiyoshi Takahashi ,  Masaru Odagiri ,  Yoshiaki Kai ,  Takashi Suzuki ,  Toshiaki Kunieda

IPC分类号： C23C16/26 ,  C23C16/509 ,  C23C16/517 ,  G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84 ,  G11B5/00

CPC分类号： C23C16/517 ,  C23C16/26 ,  C23C16/509 ,  G11B5/72 ,  G11B5/725 ,  Y10S427/106 ,  Y10S428/90 ,  Y10T428/24372 ,  Y10T428/30 ,  Y10T428/31678

摘要： In making a magnetic recording medium, a diamond-like carbon film is formed stably with high product efficiency such as 200 .ANG./sec, without occurrence of irregular discharge, and improved still durability and reduced head contamination are achieved by utilizing a.c. plasma discharge or a.c. plasma discharge superimposed by d.c. power and the lubricant film.

摘要翻译： 在制造磁记录介质时，以高达200安格/秒的高产品效率稳定地形成类金刚石碳膜，而不会发生不规则的放电，并且通过利用直流电源实现了改善的耐久性和降低的头部污染。 等离子体放电或电流 等离子体放电由d.c. 电源和润滑膜。

公开(公告)号：US4540618A

公开(公告)日：1985-09-10

申请号：US521075

申请日：1983-08-08

申请人： Takashi Suzuki ,  Kunio Hibino ,  Mikio Murai ,  Shigeki Kawase ,  Koichi Shinohara

发明人： Takashi Suzuki ,  Kunio Hibino ,  Mikio Murai ,  Shigeki Kawase ,  Koichi Shinohara

IPC分类号： G11B5/64 ,  G11B5/72 ,  B32B3/00

CPC分类号： G11B5/738 ,  G11B5/725 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24802 ,  Y10T428/24851 ,  Y10T428/24893 ,  Y10T428/254

摘要： A magnetic recording media, e.g. VTR tape is improved by providing an undercoating layer on a polyester film substrate, the undercoating layer being formed under a ferromagnetic thin film and being an even-scattering of a large number of inorganic or organic granules distributed at a rate of 1000/mm.sup.2 or more.

摘要翻译： 磁记录介质，例如 VTR带通过在聚酯薄膜基材上设置底涂层而改善，底涂层形成在铁磁薄膜下，并且是以大于1000 / mm 2或更多的速率分布的大量无机或有机颗粒的均匀散射 。

公开(公告)号：US4645703A

公开(公告)日：1987-02-24

申请号：US786348

申请日：1985-10-10

申请人： Takashi Suzuki ,  Kunio Hibino ,  Mikio Murai ,  Shigeki Kawase ,  Koichi Shinohara ,  Norimoto Nouchi

发明人： Takashi Suzuki ,  Kunio Hibino ,  Mikio Murai ,  Shigeki Kawase ,  Koichi Shinohara ,  Norimoto Nouchi

IPC分类号： G11B5/64 ,  G11B5/725 ,  G11B5/72

CPC分类号： G11B5/725 ,  G11B5/64 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24413 ,  Y10T428/24421 ,  Y10T428/2443 ,  Y10T428/24802 ,  Y10T428/24851

摘要： A magnetic recording medium comprises steep mountain-shaped protrusions having heights ranging 50-600 .ANG. and distributed at a rate of 1.times.50.sup.5 -1.times.10.sup.8 protrusions/mm.sup.2 on a surface of ferromagnetic metal layer and further thereon a lubricant layer; the magnetic recording medium is suitable for VTR tape which has a satisfactory durability for repeated use and eliminates head clogging and squealing.

摘要翻译： 磁记录介质包括高度为50-600的陡峭的山形突起，并且在铁磁金属层的表面上以1x505-1×108突起/ mm2的速率分布，并且还有润滑剂层; 该磁记录介质适用于具有令人满意的重复使用耐久性的VTR带，并且消除了头部堵塞和尖叫。

公开(公告)号：US4673617A

公开(公告)日：1987-06-16

申请号：US727083

申请日：1985-04-25

申请人： Hideki Yoshida ,  Koichi Shinohara ,  Takashi Suzuki

发明人： Hideki Yoshida ,  Koichi Shinohara ,  Takashi Suzuki

IPC分类号： G11B5/73 ,  G11B5/84 ,  G11B5/62

CPC分类号： G11B5/733 ,  G11B5/84 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/258 ,  Y10T428/259

摘要： A thin film magnetic recording medium has a shape imparting substance disposed on a substrate, and a thin-film layer including at least a magnetic layer formed on the shape imparting substance. The area of each of the projecting portions of the thin-film layer which are formed by virtue of the shape imparting substance is set such as to be more than four times as large as the area of each of the particles of the shape imparting substance. The center line of each of the projecting portions of the thin-film layer may be made offset from the center line of the corresponding particle of the shape imparting substance. Thus, it is possible for the thin film magnetic recording medium to display excellent electromagnetic response properties and runability as well as durability even under a harsh environment.

摘要翻译： 薄膜磁记录介质具有设置在基板上的形状赋予物质，以及至少包括形成在形状赋予物质上的磁性层的薄膜层。 通过形状赋予物质形成的薄膜层的每个突出部分的面积被设定为比形状赋予物质的每个颗粒的面积的四倍以上。 薄膜层的每个突出部分的中心线可以与形状赋予物质的相应颗粒的中心线偏离。 因此，即使在恶劣的环境下，薄膜磁记录介质也可以显示优异的电磁响应特性和运行性以及耐久性。