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公开(公告)号：US4699847A
公开(公告)日：1987-10-13
申请号：US758434
申请日：1985-07-24
IPC分类号： C08F290/00 , C08F299/02 , C09D4/00 , C09D5/23 , C09D101/18 , C09D127/04 , C09D127/06 , C09D163/00 , C09D167/06 , C09D175/00 , C09D175/04 , G11B5/702 , G11B5/73
CPC分类号： G11B5/7023 , G11B5/7026 , Y10S428/90 , Y10T428/31797 , Y10T428/31935
摘要： In a magnetic recording medium comprising a plastic base film and a magnetic layer, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas containing at least 5% of oxygen. The magnetic layer is formed on the plasma treated base film by applying a magnetic composition of ferromagnetic fine particles dispersed in a plasticized binder compound comprising a radiation-sensitive modified resin in admixture with a radiation-sensitive modified flexible resin or prepolymer, oligomer or telomer thereof, and exposing the composition to radiation for crosslinking and polymerization.
摘要翻译： 在包括塑料基膜和磁性层的磁记录介质中，在含有至少5％的氧的无机气体中，将基膜在10kHz至200kHz范围内的频率进行等离子体处理。 通过将散射在包含辐射敏感性改性树脂的增塑粘合剂化合物中的铁磁细颗粒的磁性组合物与辐射敏感的改性柔性树脂或其预聚物，低聚物或调聚物混合，形成在等离子体处理的基底膜上的磁性层 ，并将组合物暴露于辐射用于交联和聚合。
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公开(公告)号：US4745031A
公开(公告)日：1988-05-17
申请号：US813639
申请日：1985-12-26
CPC分类号： G11B5/7305 , G11B5/84 , Y10S428/90 , Y10S428/928 , Y10T428/12465 , Y10T428/12931 , Y10T428/31678
摘要： In a magnetic recording medium of the hard disk type comprising a rigid substrate and a magnetic layer formed thereon, the substrate is plasma treated at frequencies in the range of 10 to 200 kHz in an inorganic gas containing O; N and H; and N, H and O.
摘要翻译： 在包括刚性基板和形成在其上的磁性层的硬盘类型的磁记录介质中，基板在含有O的无机气体中在10至200kHz范围内的频率进行等离子体处理; N和H; 和N，H和O.
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公开(公告)号：US4575475A
公开(公告)日：1986-03-11
申请号：US629465
申请日：1984-07-10
CPC分类号： G11B5/7305 , G11B5/84 , Y10S428/90 , Y10T428/31786
摘要： In a magnetic recording medium comprising a plastic base film and a magnetic layer formed thereon, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas such as argon and nitrogen and preferably, in an inorganic gas containing at least 5% of oxygen.
摘要翻译： 在包括塑料基膜和形成在其上的磁性层的磁记录介质中，在诸如氩气和氮气的无机气体中优选在10kHz至200kHz的范围内等离子体处理基膜，优选在无机气体 含有至少5％的氧气。
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公开(公告)号：US4816341A
公开(公告)日：1989-03-28
申请号：US812859
申请日：1985-12-23
CPC分类号： C23C14/022 , G11B5/73 , Y10S428/90 , Y10T428/31681 , Y10T428/31786
摘要： In a magnetic recording medium comprising a base film and a magnetic layer formed on the base film, the base film has been plasma treated in an atmosphere consisting essentially of an inorganic gas containing N, H, and optionally O at frequencies in the range of 10 to 200 kHz. A perpendicular magnetizable metal thin film layer can be deposited on the plasma-treated surface of a resin substrate having a heat distortion temperature of at least 150.degree. C. without disturbance on the crystal structure of the layer.
摘要翻译： 在包括基膜和形成在基膜上的磁性层的磁记录介质中，基膜已经在基本上由含有N，H的无机气体和任选的O组成的气氛中进行等离子体处理，其频率范围为10 至200 kHz。 可以在具有至少150℃的热变形温度的树脂基板的等离子体处理表面上沉积可垂直磁化的金属薄膜层，而不影响该层的晶体结构。
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公开(公告)号：US4810524A
公开(公告)日：1989-03-07
申请号：US936992
申请日：1986-12-02
IPC分类号： C09C3/10 , B01J2/00 , B01J13/00 , B22F1/02 , C01F7/02 , C01G49/02 , C04B35/628 , C08F2/44 , C08F2/52 , C09C3/00 , C09C3/04 , G11B5/706 , H01F1/06 , B05D3/06
CPC分类号： B01J19/088 , C08F2/52 , C09C3/048 , G11B5/70647 , G11B5/70657 , H01F1/061 , C01P2004/84 , Y10T428/12181
摘要： Inorganic powders are coated with a thin film of an organic polymer formed on the individual particles by plasma polymerization. The film thickness may be not more than 100 .ANG., and the inorganic powders include magnetic ones.
摘要翻译： 无机粉末通过等离子体聚合涂覆在单个颗粒上形成的有机聚合物的薄膜。 膜厚度可以不超过100，无机粉末包括磁性粉末。
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公开(公告)号：US4599266A
公开(公告)日：1986-07-08
申请号：US713562
申请日：1985-03-18
申请人： Masatoshi Nakayama , Haruyuki Morita , Yasumichi Tokuoka , Toshiaki Izumi , Kazumasa Fukuda , Yuichi Kubota
发明人： Masatoshi Nakayama , Haruyuki Morita , Yasumichi Tokuoka , Toshiaki Izumi , Kazumasa Fukuda , Yuichi Kubota
CPC分类号： G11B5/725 , Y10S428/90 , Y10T428/265 , Y10T428/31663
摘要： A magnetic recording medium is coated, over its magnetic layer, with a thin film of a siloxane-linkage-containing polymer. The magnetic layer consists of a thin film formed by vacuum evaporation or sputtering or by dispersion of a ferromagnetic metal powder in a binder. The polymer having the siloxane linkage is prepared by polymerizing an organo-silicon compound which either inherently possesses the linkage or is capable of producing it. The polymerization is preferably effected by the plasma polymerization technique.
摘要翻译： 磁性记录介质在其磁性层上涂覆含有含硅氧烷键的聚合物的薄膜。 磁性层由通过真空蒸发或溅射形成的薄膜或通过将铁磁金属粉末分散在粘合剂中而形成。 具有硅氧烷键的聚合物通过聚合固有地具有键或能够产生它的有机硅化合物来制备。 聚合反应优选通过等离子体聚合技术实现。
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公开(公告)号：US4619861A
公开(公告)日：1986-10-28
申请号：US756933
申请日：1985-07-19
CPC分类号： G11B5/70657 , B22F1/02 , Y10S29/028 , Y10S29/095 , Y10S428/90 , Y10S428/928 , Y10T428/269 , Y10T428/2998 , Y10T428/31678
摘要： Magnetic powders have a thin film of a nitrogen- or sulfur-containing organic polymer synthesized on the individual particles by plasma polymerization. The film is not more than 100 .ANG. in thickness.
摘要翻译： 磁粉具有通过等离子体聚合在单个颗粒上合成的含氮或含硫有机聚合物的薄膜。 电影厚度不超过100安格。
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公开(公告)号：US4741977A
公开(公告)日：1988-05-03
申请号：US896458
申请日：1986-08-14
申请人： Keiji Koga , Keiko Tsuchiya , Kazunori Tamazaki , Tsutomu Aoyama , Yuichi Kubota
发明人： Keiji Koga , Keiko Tsuchiya , Kazunori Tamazaki , Tsutomu Aoyama , Yuichi Kubota
CPC分类号： G11B5/71 , G11B5/7026 , Y10S428/90
摘要： A magnetic sheet comprising a disk-shaped substrate and a magnetic layer is loaded in a magnetic sheet operating device, typically electronic camera comprising a magnetic head for performing recording and reproducing operations on the sheet while rotating the sheet. The magnetic layer is formed from a composition comprising a magnetic powder and a binder having a specified complex elastic modulus.
摘要翻译： 包括盘状基板和磁性层的磁性片被装载在磁性片操作装置中，通常是包括用于在片材旋转的同时在片材上执行记录和再现操作的磁头的电子照相机。 磁性层由包含磁性粉末和具有规定的复弹性模量的粘合剂的组合物形成。
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公开(公告)号：US4321303A
公开(公告)日：1982-03-23
申请号：US173618
申请日：1980-07-30
申请人： Haruyuki Morita , Yuichi Kubota , Yasuo Imaoka
发明人： Haruyuki Morita , Yuichi Kubota , Yasuo Imaoka
CPC分类号： G11B5/70657 , G11B5/70673 , Y10T428/2993
摘要： A magnetic powder for a magnetic recording medium is obtained by forming a silica layer on a surface of an acicular iron oxide fine powder as a core by treating it with a silicon compound before preparing a cobalt modified acicular iron oxide fine powder by dispersing said acicular iron oxide fine powder as the core in an aqueous solution of ammonia containing cobalt ion and treating it in an inert gas atmosphere at high temperature or in a reduction atmosphere.
摘要翻译： 通过在制备钴改性的针状氧化铁细粉之前用硅化合物处理，在针状氧化铁细粉末的表面上形成二氧化硅层，得到磁性记录介质的磁性粉末，分散所述针状铁 在含有钴离子的氨水溶液中的氧化物细粉末作为核心，并在惰性气体气氛中在高温或还原气氛下处理。
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10.发明授权Magnetic recording medium comprising protrusion on its surface and a plasma treated substrate and recording/reproducing method therefor 失效在其表面上包括突起的磁记录介质和等离子体处理的基板及其记录/再现方法
公开(公告)号：US4734810A
公开(公告)日：1988-03-29
申请号：US758436
申请日：1985-07-24
申请人： Masatoshi Nakayama , Kunihiro Ueda , Yuichi Kubota
发明人： Masatoshi Nakayama , Kunihiro Ueda , Yuichi Kubota
IPC分类号： G11B5/66 , C08L67/02 , G11B5/02 , G11B5/23 , G11B5/64 , G11B5/73 , G11B5/733 , G11B5/84 , G11B5/62 , G11B5/712 , G11B5/78 , G11B5/82
CPC分类号： G11B5/7325 , G11B5/64
摘要： A magnetic recording medium comprising a ferromagnetic metal thin film layer formed on one surface of a flexible non-magnetic substrate and primarily comprising cobalt and oxygen is improved in durability by treating the substrate with a plasma at a frequency of 10 kHz to 200 kHz, and providing the magnetic layer on the surface with protrusions having a height of 30 to 300 .ANG. at an average density of at least 10.sup.5 /a.sup.2 per square millimeter of the surface, provided that the magnetic recording medium is passed for recording/reproducing operation across a magnetic head with a gap having a distance a as expressed n .mu.m.
摘要翻译： 在柔性非磁性基板的一个表面上形成的主要包含钴和氧的强磁性金属薄膜层的磁记录介质通过用10kHz至200kHz的频率处理等离子体来改善耐久性，并且 在表面上提供磁性层，其表面的平均密度为每平方毫米至少105 / a2的高度为30至300埃的凸起，条件是磁记录介质通过磁记录/再现操作 头部具有距离a表示为n m的间隙。
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