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公开(公告)号：US20060159844A1
公开(公告)日：2006-07-20
申请号：US11333271
申请日：2006-01-18
申请人： Kenichi Moriwaki , Kazuyuki Usuki , Junji Nakada
发明人： Kenichi Moriwaki , Kazuyuki Usuki , Junji Nakada
CPC分类号： C23C14/562 , G11B5/851
摘要： A process for producing a magnetic recording medium comprising: unrolling a flexible polymer substrate from a feed roll; forming a magnetic layer on at least one side of the flexible polymer substrate by a vacuum film forming method in a film forming chamber; and taking up the flexible polymer substrate on a take-up roll, wherein at least one of the feed roll and the take-up roll is replaced while maintaining a vacuum state for forming the magnetic layer in the film forming chamber.
摘要翻译： 一种制造磁记录介质的方法，包括：从进料辊展开柔性聚合物基材; 在成膜室中通过真空成膜法在柔性聚合物基材的至少一侧上形成磁性层; 并且在卷取辊上卷取柔性聚合物基材，其中在保持用于在成膜室中形成磁性层的真空状态下更换进料辊和卷取辊中的至少一个。
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2.发明授权公开(公告)号：US06587289B2
公开(公告)日：2003-07-01
申请号：US09928482
申请日：2001-08-14
申请人： Masakazu Nishikawa , Kazuyuki Usuki , Masashi Aoki
发明人： Masakazu Nishikawa , Kazuyuki Usuki , Masashi Aoki
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B23/505
摘要： A magnetic transfer method for magnetically transferring information signals such as servo signals from a master medium to a slave medium, capable of reducing a range of signal missing due to insufficient contact of the two mediums originating from an adhering substance, thus enhancing signal quality. When the master medium bearing an information signal and the slave medium are brought into close contact with each other, a transferring magnetic field is applied thereto, thus magnetically transferring the information signal from the master medium to the slave medium. An elastic member made of a material having an elastic property so as to deform in accordance with a surface shape of the slave medium during contact pressure application and to restore to an original surface shape thereof during release of the slave medium from the master medium can be interposed between a back of the slave medium and a pressing surface of a pressing support member.
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公开(公告)号：US6106895A
公开(公告)日：2000-08-22
申请号：US37053
申请日：1998-03-09
申请人： Kazuyuki Usuki
发明人： Kazuyuki Usuki
IPC分类号： C09D171/02 , C09D183/04 , G11B5/64 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/84 , G11B5/842 , B05D7/04
CPC分类号： G11B5/7325 , G11B5/8404
摘要： A magnetic recording medium comprises a non-magnetic substrate and a magnetic layer, which is constituted of a thin ferromagnetic metal film and is overlaid upon at least either one of the surfaces of the non-magnetic substrate. A prime-coating layer, which contains a silicone resin having an aromatic hydrocarbon group, is formed between the non-magnetic substrate and the thin ferromagnetic metal film. The magnetic recording medium can be produced easily and at a low cost. The prime-coating layer has smooth surface characteristics and is free from deterioration of surface characteristics and the occurrence of cracking even during the formation of a magnetic layer thereon with a sputtering process, which is accompanied by heating of the substrate. Also, the prime-coating layer causes no blocking to occur and is uniform and capable of being subjected to a wet-on-wet coating technique.
摘要翻译： 磁记录介质包括由薄铁磁性金属膜构成并且覆盖在非磁性基板的至少任一个表面上的非磁性基板和磁性层。 在非磁性基板和薄铁磁性金属膜之间形成包含具有芳香族烃基的硅酮树脂的初涂层。 磁记录介质可以容易且低成本地制造。 主涂层具有光滑的表面特性，并且即使在其上形成磁性层时也发生表面特性的劣化，并且伴随着基板的加热，溅射工艺也发生了裂纹的发生。 此外，初涂层不会发生阻塞，并且是均匀的并且能够进行湿式湿式涂布技术。
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4.发明授权
公开(公告)号：US5560995A
公开(公告)日：1996-10-01
申请号：US442755
申请日：1995-05-17
申请人： Kazuyuki Usuki , Toshio Ishida , Tadashi Yasunaga
发明人： Kazuyuki Usuki , Toshio Ishida , Tadashi Yasunaga
CPC分类号： G11B5/725 , Y10S428/90 , Y10T428/31678
摘要： The magnetic recording medium has a magnetic layer of a ferromagnetic metal thin film over at least one surface of a non-magnetic base, in which a phosphoric monoester compound which is represented by R.sub.1 --OPO(OH).sub.2, a florine-containing fatty acid ester compound which is represented by R.sub.2 --COO--R.sub.3, and a fluorinated hydrocarbon in which some of the hydrogen atoms of a hydrocarbon having from 14 to 40 carbon atoms have been replaced by fluorine atoms, are present on the magnetic layer. R.sub.1 is a hydrocarbon group having from 8 to 26 carbon atoms. R.sub.2 and R.sub.3 are each a hydrocarbon group having from 8 to 26 carbon atoms, or a fluorinated hydrocarbon group in which some or all of the hydrogen atoms of a hydrocarbon group having from 8 to 26 carbon atoms have been replaced by fluorine atoms. R.sub.2 and R.sub.3 may be the same or different from each other. At least either one of R.sub.2 and R.sub.3 contains fluorine atoms.
摘要翻译： 磁记录介质在非磁性碱的至少一个表面上具有强磁性金属薄膜的磁性层，其中由R1-OPO（OH）2表示的磷酸单酯化合物，含有佛罗里酸的脂肪酸 由R2-COO-R3表示的酯化合物和其中一些具有14〜40个碳原子的烃的氢原子被氟原子代替的氟化烃存在于磁性层上。 R1是具有8至26个碳原子的烃基。 R2和R3各自为具有8至26个碳原子的烃基或其中具有8至26个碳原子的烃基的一些或全部氢原子已被氟原子替代的氟化烃基。 R2和R3可以相同或不同。 R2和R3中的至少一个含有氟原子。
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公开(公告)号：US06869688B2
公开(公告)日：2005-03-22
申请号：US10385622
申请日：2003-03-12
申请人： Kazuyuki Usuki
发明人： Kazuyuki Usuki
IPC分类号： G11B5/673 , G11B5/00 , G11B5/64 , G11B5/66 , G11B5/72 , G11B5/73 , G11B5/82 , G11B5/70 , H01J1/00
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66 , G11B5/72 , G11B5/82 , G11B2005/0029 , Y10S428/90 , Y10T428/12465 , Y10T428/12861 , Y10T428/12875 , Y10T428/265 , Y10T428/266
摘要： A magnetic recording medium comprising a flexible support and a magnetic layer selected from a cobalt/palladium multilayer film and a cobalt/platinum multilayer film.
摘要翻译： 一种磁记录介质，包括柔性载体和选自钴/钯多层膜和钴/铂多层膜的磁性层。
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公开(公告)号：US06740407B1
公开(公告)日：2004-05-25
申请号：US09618152
申请日：2000-07-17
申请人： Kazuyuki Usuki , Kazutoshi Katayama
发明人： Kazuyuki Usuki , Kazutoshi Katayama
IPC分类号： G11B572
CPC分类号： G11B5/72 , G11B5/8408 , G11B5/85 , Y10T428/1341
摘要： A magnetic disk, comprising a magnetic layer, a protective layer, and a lubricating layer coated at least on one surface of a flexible non-magnetic support member or a rigid non-magnetic support member, wherein the protective layer comprises a carbon film containing hydrogen, nitrogen, and rare gas elements, nitrogen content is 0.5-8.0 atom %, and rare gas content is 0.5-1.2 atom %, and a magnetic recording mode using a floppy disk, wherein magnetic signal is recorded and reproduced using a floppy disk device provided with a carbon protective layer on the surface of the head or the slider.
摘要翻译： 一种磁盘，包括磁性层，保护层和涂覆在柔性非磁性支撑构件或刚性非磁性支撑构件的至少一个表面上的润滑层，其中保护层包括含有氢的碳膜 ，氮气和稀有气体元素，氮含量为0.5-8.0原子％，稀有气体含量为0.5-1.2原子％，使用软盘的磁记录模式，其中使用软盘装置记录和再现磁信号 在头部或滑块的表面上设置有碳保护层。
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公开(公告)号：US5914151A
公开(公告)日：1999-06-22
申请号：US654672
申请日：1996-05-29
申请人： Kazuyuki Usuki
发明人： Kazuyuki Usuki
CPC分类号： G11B5/8408 , G11B5/72 , Y10S428/90
摘要： A coating film, which is constituted of a polysilazane, is formed on a substrate. The polysilazane in the coating film is then oxidized by being brought into contact with active oxygen or ozone, or by being exposed to light. A protective film, which is constituted of silica, is thereby formed on the substrate. An inorganic protective film is also provided, which comprises an inorganic oxide film, that is obtained by subjecting a polysilazane coating film to oxidation treatment, and fine particles contained in the inorganic oxide film.
摘要翻译： 在基材上形成由聚硅氮烷构成的涂膜。 涂膜中的聚硅氮烷然后通过与活性氧或臭氧接触或暴露于光而被氧化。 由此在基板上形成由二氧化硅构成的保护膜。 还提供了一种无机保护膜，其包括通过使聚硅氮烷涂层进行氧化处理获得的无机氧化物膜和包含在无机氧化物膜中的细颗粒。
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公开(公告)号：US5405689A
公开(公告)日：1995-04-11
申请号：US056883
申请日：1993-05-05
申请人： Kazuyuki Usuki , Tadashi Yasunaga
发明人： Kazuyuki Usuki , Tadashi Yasunaga
CPC分类号： G11B5/738 , Y10S428/90 , Y10T428/25 , Y10T428/259 , Y10T428/26 , Y10T428/265 , Y10T428/3154 , Y10T428/31786
摘要： A magnetic recording medium is disclosed, comprising a non-magnetic support having an undercoating layer provided on said non-magnetic support and a magnetic layer provided on said undercoating layer, wherein said undercoating layer provided between said non-magnetic support and said magnetic layer comprises mainly a non-magnetic fine particles having an average particle size of 100 to 350 .ANG. and a binder; said binder is a polyester resin having a glass transition temperature (Tg) of 40.degree. C. or less, said undercoating layer has a thickness of 30 to 250 .ANG.; and said magnetic layer is a ferromagnetic metal thin film.
摘要翻译： 公开了一种磁记录介质，包括具有设置在所述非磁性载体上的底涂层和设置在所述底涂层上的磁性层的非磁性载体，其中设置在所述非磁性载体和所述磁性层之间的所述底涂层包括 主要是平均粒度为100〜350和粘合剂的非磁性微粒; 所述粘合剂是玻璃化转变温度（Tg）为40℃以下的聚酯树脂，所述底涂层的厚度为30〜250; 并且所述磁性层是铁磁金属薄膜。
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公开(公告)号：US07112376B2
公开(公告)日：2006-09-26
申请号：US10753366
申请日：2004-01-09
CPC分类号： G11B5/7325 , G11B5/656 , Y10S428/90 , Y10T428/12854
摘要： A magnetic recording medium comprising; a nonmagnetic support; a first under layer which is constituted by a nonmetal element, per se, a compound consisting of nonmetal elements, or a compound containing titanium and a nonmetal element; a second under layer containing at least one element selected from the group consisting of chromium, titanium, iridium, platinum, palladium, ruthenium, rhodium, rhenium and osmium; and a magnetic layer which contains a ferromagnetic metal alloy containing at least cobalt, platinum and chromium, and a nonmagnetic compound, in this order.
摘要翻译： 一种磁记录介质，包括： 非磁性支撑; 由非金属元素本身构成的第一底层，由非金属元素组成的化合物或包含钛和非金属元素的化合物; 含有选自铬，钛，铱，铂，钯，钌，铑，铼和锇中的至少一种元素的第二下层; 以及含有至少含有钴，铂，铬的铁磁性金属合金和非磁性化合物的磁性层。
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公开(公告)号：US20050274601A1
公开(公告)日：2005-12-15
申请号：US11141046
申请日：2005-06-01
申请人： Kenichi Moriwaki , Kazuyuki Usuki , Junji Nakada
发明人： Kenichi Moriwaki , Kazuyuki Usuki , Junji Nakada
CPC分类号： C23C14/562 , C23C14/205 , C23C14/352 , G11B5/7315 , G11B5/7325 , G11B5/7379 , G11B5/851 , Y02T50/67
摘要： A method for manufacturing a magnetic recording medium, the method comprising forming a magnetic layer on at least one side of a flexible polymer support by a sputtering method, wherein the flexible polymer support contains at least one of polyethylene terephthalate, polyethylene naphthalate, polyamide and polyimide, the forming of a magnetic layer is carried out while carrying the flexible polymer support along a roll having a maximum surface roughness of from 0.01 to 0.4 μm, and a deposition rate in the sputtering method for forming of a magnetic layer is from 0.5 to 17 nm/sec.
摘要翻译： 一种制造磁记录介质的方法，所述方法包括通过溅射法在柔性聚合物载体的至少一侧上形成磁性层，其中柔性聚合物载体包含聚对苯二甲酸乙二醇酯，聚萘二甲酸乙二醇酯，聚酰胺和聚酰亚胺中的至少一种 在沿着最大表面粗糙度为0.01〜0.4μm的辊的同时承载柔性聚合物载体的同时进行磁性层的形成，并且在形成磁性层的溅射法中的沉积速率为0.5〜17 nm / sec。
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