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1. 发明授权

US06829201B2 Magnetic information recording medium having regions magnetized in different directions, a method for recording and reproducing for the same, and a method of manufacturing the same 失效
标题翻译：具有沿不同方向磁化的区域的磁信息记录介质及其记录和再现方法及其制造方法
公开(公告)号：US06829201B2
公开(公告)日：2004-12-07
申请号：US10023832
申请日：2001-12-21
申请人： Masakazu Nishikawa , Kazuyuki Usuki , Yoshihisa Usami , Makoto Nagao
发明人： Masakazu Nishikawa , Kazuyuki Usuki , Yoshihisa Usami , Makoto Nagao
IPC分类号： G11B1100
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/5526 , G11B5/59677 , G11B5/743 , G11B5/82 , G11B5/825 , G11B11/10526 , G11B11/10565 , G11B11/10576 , G11B11/10578 , G11B11/10582 , G11B2005/0021
摘要： There are provided an information recording medium which permits accurate tracking servo, and a method for recording and reproducing for an information recording medium which allows recording and reproducing of a signal at a favorable S/N by carrying out at least one of information recording and information reproduction while accurately performing tracking servo. A magneto-optic disk includes a magnetic recording layer for magnetically recording information. The magnetic recording layer is in advance magnetized for concentrically or spirally around the center of the disk in such a manner that magnetized regions are disposed such that adjacent regions are magnetized in different directions and alternately arranged in the radial direction of the disk. Accordingly, tracking can be continuously performed and accurate tracking servo can also be performed.
摘要翻译：提供了一种允许精确跟踪伺服的信息记录介质，以及一种用于信息记录介质的记录和再现方法，该信息记录介质允许通过执行信息记录和信息中的至少一个来以良好的S / N记录和再现信号正确执行跟踪伺服时再现。磁光盘包括用于磁记录信息的磁记录层。磁记录层预先被磁化以围绕盘的中心同心或螺旋地以磁化区域被布置成使得相邻区域沿不同方向被磁化并且沿盘的径向方向交替布置。因此，可以连续执行跟踪，并且还可以执行精确的跟踪伺服。

2. 发明授权

US06977786B2 Information recording method using a vertical magnetic system 失效
标题翻译：使用垂直磁系统的信息记录方法
公开(公告)号：US06977786B2
公开(公告)日：2005-12-20
申请号：US10264343
申请日：2002-10-04
申请人： Kazuyuki Usuki , Masakazu Nishikawa , Makoto Nagao
发明人： Kazuyuki Usuki , Masakazu Nishikawa , Makoto Nagao
IPC分类号： G11B5/82 , G11B5/02 , G11B5/596 , G11B5/86 , G11B13/00
CPC分类号： G11B5/59677 , G11B5/59611 , G11B5/865
摘要： In an information recording method of the present invention by carrying out recording data while carrying out tracking servo accurately, high density recording of signals at a good S/N can be carried out, and high density recording by a vertical magnetic recording system can be carried out. A magnetic disk comprises a magnetic recording layer, and the magnetic recording layer is magnetized in advance such that magnetized regions A and B having different magnetization directions are formed. At a time of recording data, vertical magnetic recording is carried out by a magnetic head while carrying out accurate tracking servo by optically tracking by a magneto-optical effect utilizing a difference in the magnetization directions of the magnetized regions A and B. Therefore, high-density recording at a good S/N is possible.
摘要翻译：在本发明的信息记录方法中，通过在精确地执行跟踪伺服的同时执行记录数据，可以进行具有良好S / N的信号的高密度记录，并且可以承载通过垂直磁记录系统的高密度记录出来磁盘包括磁记录层，磁记录层被预先磁化，从而形成磁化方向不同的磁化区域A和B. 在记录数据时，通过利用磁化区域A和B的磁化方向上的差异的磁光效应通过光学跟踪进行精确的跟踪伺服，由磁头执行垂直磁记录。因此，高在良好的S / N下的密度记录是可能的。

3. 发明授权

US06587289B2 Method of magnetically transferring information signal from master medium to slave medium 失效
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.

4. 发明授权

US07112376B2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US07112376B2
公开(公告)日：2006-09-26
申请号：US10753366
申请日：2004-01-09
申请人： Kenichi Moriwaki , Kazuyuki Usuki , Masakazu Nishikawa
发明人： Kenichi Moriwaki , Kazuyuki Usuki , Masakazu Nishikawa
IPC分类号： G11B5/66 , G11B5/70
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。

5. 发明授权

US06678101B2 Method of magnetically transferring information signal from master medium to slave medium 失效
标题翻译：将信息信号从主介质传送到从属介质的方法
公开(公告)号：US06678101B2
公开(公告)日：2004-01-13
申请号：US10268685
申请日：2002-10-11
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.
摘要翻译：一种磁传递方法，用于将诸如伺服信号的信息信号从主介质传送到从属介质，能够减少由于粘附物质引起的两种介质的接触不足引起的信号丢失范围，从而提高信号质量。当承载信息信号的主介质和从属介质彼此紧密接触时，向其施加转移磁场，从而将信息信号从主介质磁传输到从介质。弹性构件由具有弹性的材料制成，以便在接触压力施加期间根据从属介质的表面形状变形并且在从介质从主介质释放期间恢复其原始表面形状时可以是插入从属介质的背面和按压支撑构件的按压面之间。

6. 发明申请

US20050008901A1 Magnetic recording medium including a magnetic layer containing a nonmagnetic oxide 审中-公开
标题翻译：磁记录介质包括含有非磁性氧化物的磁性层
公开(公告)号：US20050008901A1
公开(公告)日：2005-01-13
申请号：US10915344
申请日：2004-08-11
申请人： Kazuyuki Usuki , Kenichi Moriwaki , Kazutoshi Katayama , Makoto Nagao
发明人： Kazuyuki Usuki , Kenichi Moriwaki , Kazutoshi Katayama , Makoto Nagao
IPC分类号： G11B5/64 , G11B5/73 , G11B5/851 , G11B5/187 , B32B5/16
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/7315 , G11B5/7379 , G11B5/851 , Y10T428/24248 , Y10T428/24281 , Y10T428/256 , Y10T428/259
摘要： A magnetic recording medium, which contains a chromium-containing primer layer and a magnetic layer at least on one surface of a nonmagnetic support member, the chromium-containing primer layer contains chromium and at least one type of element selected from a group of cobalt, beryllium, osmium, rhenium, titanium, zinc, tantalum, aluminum, molybdenum, tungsten, vanadium, iron, antimony, iridium, ruthenium, rhodium, platinum, palladium, silicon, and zirconium, and the magnetic layer contains a ferromagnetic metal alloy containing at least cobalt, platinum and chromium, and a nonmagnetic material.
摘要翻译：一种磁记录介质，其含有至少在非磁性支撑构件的一个表面上的含铬底漆层和磁性层，所述含铬底漆层含有铬和至少一种选自钴，铍，锇，铼，钛，锌，钽，铝，钼，钨，钒，铁，锑，铱，钌，铑，铂，钯，硅和锆，并且磁性层含有强磁性金属合金，最少的钴，铂和铬，以及非磁性材料。

7. 发明申请

US20060159844A1 Process and apparatus for producing magnetic recording medium 审中-公开
标题翻译：制造磁记录介质的方法和装置
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
IPC分类号： B05D5/12 , C23C16/00
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。

8. 发明授权

US6106895A Magnetic recording medium and process for producing the same 失效
标题翻译：磁记录介质及其制造方法
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。

9. 发明授权

US5560995A Magnetic recording medium having a ferromagnetic metal thin film upon which is coated a phosphorous and fluorine containing composition 失效
标题翻译：具有铁磁金属薄膜的磁记录介质涂覆有含磷和氟的组合物
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
IPC分类号： G11B5/66 , G11B5/71 , G11B5/725 , G11B5/72
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。

10. 发明授权

US06869688B2 Magnetic recording medium 失效
标题翻译：磁记录介质
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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