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31. 发明授权

US5674583A Optical recording medium and manufacturing method thereof 失效
标题翻译：光记录介质及其制造方法
公开(公告)号：US5674583A
公开(公告)日：1997-10-07
申请号：US461164
申请日：1995-06-05
申请人： Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Kazuo Van
发明人： Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Kazuo Van
IPC分类号： G11B5/00 , G11B7/003 , G11B7/004 , G11B7/007 , G11B7/24 , G11B7/26 , G11B11/105 , G11B13/00 , G11B13/04 , G11B20/00 , G11B23/28 , G11B5/66
CPC分类号： G11B23/281 , G11B11/10582 , G11B13/00 , G11B13/04 , G11B13/045 , G11B23/28 , G11B5/00 , G11B7/0031 , G11B7/24 , G11B7/26 , G11B11/10502 , G11B20/00086 , G11B7/004 , G11B7/007 , Y10S428/90 , Y10T428/265
摘要： An optical tape including an optical recording layer for permitting information to be optically recorded thereon and a light-reflective magnetic layer; the light-reflective magnetic layer which reflects light projected onto the recording layer, also permits magnetic recording or magneto-optical recording to be performed thereon, thereby increasing a storage capacity of the optical tape remarkably; further, the optical tape is provided with a layer to form guiding grooves for tracking control, which layer to form guiding grooves is made up of ultraviolet-hardening resin, photo-resist, or a photochromic material.
摘要翻译：一种光学带，包括用于允许光学记录信息的光学记录层和光反射性磁性层; 反映投影到记录层上的光的光反射性的磁性层也可以在其上进行磁记录或磁光记录，从而显着地增加了光带的存储容量。此外，光带设置有层以形成用于跟踪控制的引导槽，其中形成导向槽的层由紫外线硬化树脂，光致抗蚀剂或光致变色材料构成。

32. 发明授权

US5662988A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5662988A
公开(公告)日：1997-09-02
申请号：US387294
申请日：1995-02-10
申请人： Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Yoshiteru Murakami
发明人： Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Yoshiteru Murakami
IPC分类号： G11B11/105 , G11B11/10 , G11B13/04
CPC分类号： G11B11/10586 , G11B11/10506 , G11B11/10515 , Y10S428/90 , Y10S430/146 , Y10T428/12632 , Y10T428/12861 , Y10T428/12986 , Y10T428/24942 , Y10T428/31678
摘要： The magneto-optical recording medium is provided with a readout layer which shows the in-plane magnetization and which changes from the in-plane magnetization to the vertical magnetization when its temperature rises higher than a predetermined temperature by irradiation of the light beam, a memory layer which records information thereon magneto-optically, an intermediate layer which keeps in-plane magnetization from room temperatures to its Curie temperature, and an writing layer which has a Curie temperature higher than that of the memory layer and has coercive force lower than that of the memory layer. Since the intermediate layer becomes a domain wall in optical modulation recording, it prevents the memory layer and the writing layer from forming a domain wall, so information can be recorded in good condition. Moreover, a portion of the readout layer besides a center portion of the light beam shows the in-plane magnetization and masks the memory layer at playback. Therefore, a recording bit can be made small and recording density can be improved without increasing interference of signals from neighboring recording bits, which causes noises.
摘要翻译：磁光记录介质设置有读出层，该读出层显示平面内的磁化强度，并且当读出层的温度通过照射光束而升高到高于预定温度时，其从平面内磁化强度变化到垂直磁化强度;存储器在磁光上记录信息的层，将室内的平面磁化保持到其居里温度的中间层，以及具有比存储层的居里温度高的居里温度并具有低于存储层的矫顽力的矫顽力的写层内存层。由于中间层成为光调制记录中的畴壁，因此防止存储层和写入层形成畴壁，因此可以将信息记录在良好状态。此外，除了光束的中心部分之外，读出层的一部分表示平面内磁化，并且在重放时掩蔽存储层。因此，可以使记录位小，并且可以提高记录密度，而不会增加来自相邻记录位的信号的干扰，这导致噪声。

33. 发明授权

US5353278A Magneto-optical disk and method of manufacturing the same 失效
标题翻译：磁光盘及其制造方法
公开(公告)号：US5353278A
公开(公告)日：1994-10-04
申请号：US694990
申请日：1991-05-02
申请人： Yoshiteru Murakami , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Hirotaka Toki
发明人： Yoshiteru Murakami , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Hirotaka Toki
IPC分类号： G11B11/105 , G11B23/00 , G11B5/54
CPC分类号： G11B23/0042 , G11B11/10582 , G11B11/10584
摘要： A magneto-optical disk comprising a substrate whereon a recording medium is formed, and a depression is formed on the substrate on the inside of the recording medium of the substrate. A center hub is installed on the depression such that the center hub is substantially level with a protective resin layer covering the recording medium. On the center hub, a flying head performs CSS (Contact Start and Stop). This configuration of the disk eliminates the occurrence of dust due to the abrasion and head crash, and achieves stable CSS. A method of manufacturing the magneto-optical disk, wherein the protective resin layer is formed after installing the center hub on the depression. In this method, since a space is not produced between the center hub and the protective resin layer, the stable flying characteristics is obtained. And a magneto-optical disk whereon small physical bumps and pits are formed on the substrate on the inside of the recording medium, which prevents the flying head from sticking to the disk. A method of manufacturing the magneto-optical disk by using a stamper, which permits the disk to be mass produced.
摘要翻译：一种磁光盘，包括形成记录介质的基板，并且在基板的记录介质的内侧上的基板上形成凹陷。中心毂安装在凹陷处，使得中心毂基本上与覆盖记录介质的保护树脂层水平。在中心枢纽上，飞头执行CSS（联系人启动和停止）。盘的这种配置消除了由于磨损和头部碰撞引起的灰尘的发生，并且实现了稳定的CSS。一种制造磁光盘的方法，其中在将中心毂安装在凹陷部之后形成保护树脂层。在该方法中，由于在中心轮毂和保护树脂层之间不产生空间，因此获得了稳定的飞行特性。另外，在记录介质的内侧的基板上形成小的物理凸点和凹坑的磁光盘，防止飞头粘附到盘上。通过使用压模来制造磁光盘的方法，该压模允许大量生产盘。

34. 发明授权

US5278810A Magneto-optical recording medium whereon recording is carried out with an overwriting function 失效
标题翻译：以覆盖功能进行记录的磁光记录介质
公开(公告)号：US5278810A
公开(公告)日：1994-01-11
申请号：US909969
申请日：1992-07-07
申请人： Akira Takahashi , Junichiro Nakayama , Hiroyuki Katayama , Kenji Ohta
发明人： Akira Takahashi , Junichiro Nakayama , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10515 , G11B11/10519 , G11B11/10584 , G11B11/10586
摘要： A magneto-optical recording medium is consisted of a recording layer, a readout layer and a writing layer. The readout layer is made of rare earth-transition metal alloys wherein an easy magnetization axis is parallel to the recording layer at room temperature, and the easy magnetization axis is perpendicular to the recording layer as the temperature of the readout layer is raised above a predetermined temperature by irradiating thereon with a light beam. The writing layer is made of rare earth-transition metal alloys having such coercive force that a magnetization direction thereof is switched by an external magnetic field at room temperature and Curie temperature that is above Curie temperature of the recording layer. With the above arrangement, an overwriting function can be achieved by adjusting a light intensity of the light beam so that the temperature falls within the range between the Curie temperature of the writing layer and the Curie temperature of the recording layer, or above the Curie temperature of the writing layer.
摘要翻译：磁光记录介质由记录层，读出层和书写层构成。读出层由稀土 - 过渡金属合金制成，其中容易的磁化轴在室温下平行于记录层，随着读出层的温度升高到预定的温度，易磁化轴垂直于记录层通过用光束照射其上的温度。书写层由具有这样的矫顽力的稀土 - 过渡金属合金制成，其磁化方向由室温下的外部磁场和高于记录层的居里温度的居里温度切换。通过上述配置，可以通过调节光束的光强度使得温度落在书写层的居里温度和记录层的居里温度之间或居里温度以上的范围内来实现重写功能的写作层。

35. 发明授权

US5586109A Optical memory having narrowed track pitch 失效
标题翻译：具有窄轨道间距的光学存储器
公开(公告)号：US5586109A
公开(公告)日：1996-12-17
申请号：US354457
申请日：1994-12-12
申请人： Tetsuya Inui , Akira Takahashi , Kenji Ohta , Michinobu Mieda , Yoshiteru Murakami
发明人： Tetsuya Inui , Akira Takahashi , Kenji Ohta , Michinobu Mieda , Yoshiteru Murakami
IPC分类号： G11B7/0045 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/26 , G11B11/105 , G11B3/70
CPC分类号： G11B7/261 , G11B11/10582 , G11B7/24 , G11B7/24079 , G11B7/26 , G11B7/00454 , G11B7/007 , G11B7/0938
摘要： A transparent substrate of an optical memory is produced by injection molding using a stamper. Grooves and lands are alternately arranged on the optical memory, for tracking of light converged on the optical memory. The groove width is set in the range of 0.3 .mu.m to 0.4 .mu.m and the groove depth is set in the rage of 80 nm to 100 nm. A decrease in the width of a land at each edge is restrained to 0.2 .mu.m in maximum. With such dimensions, even when the track pitch is set to about 1.4 .mu.m, it is possible to obtain a track crossing signal with intensity sufficient for performing an access operation to a target track. Moreover, since the dimensions bring about an improved reflectance at a land, the optical memory achieves an improved C/N and recording density.
摘要翻译：通过使用压模的注射成型制造光学存储器的透明基板。沟槽和焊盘交替布置在光学存储器上，用于跟踪会聚在光学存储器上的光。槽宽度设定在0.3μm〜0.4μm的范围内，槽深度设定在80nm〜100nm的范围内。每个边缘的陆地宽度减小最大限制在0.2亩。利用这样的尺寸，即使当轨道间距设置为大约1.4μm时，也可以获得具有足以对目标轨道进行访问操作的强度的轨迹交叉信号。此外，由于尺寸在陆地上产生改进的反射率，所以光学存储器实现了改进的C / N和记录密度。

36. 发明授权

US5490131A Optical disk 失效
标题翻译：光盘
公开(公告)号：US5490131A
公开(公告)日：1996-02-06
申请号：US731790
申请日：1991-07-18
申请人： Kenji Ohta , Toshikazu Nagaura , Masayasu Futagawa , Shinji Yamagami , Yoshiteru Murakami , Hiroyuki Ikenaga , Michinobu Mieda , Tetsuya Inui , Akira Takahashi
发明人： Kenji Ohta , Toshikazu Nagaura , Masayasu Futagawa , Shinji Yamagami , Yoshiteru Murakami , Hiroyuki Ikenaga , Michinobu Mieda , Tetsuya Inui , Akira Takahashi
IPC分类号： G11B7/24 , G11B7/243 , G11B7/253 , G11B7/2534 , G11B7/2542 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/26 , G11B11/105 , G11B11/12
CPC分类号： G11B7/2542 , G11B11/10586 , G11B7/24 , G11B7/252 , G11B7/26 , G11B2007/24306 , G11B2007/25708 , G11B2007/25713 , G11B7/2534 , G11B7/2585
摘要： An optical disk including a transparent plastic substrate, a recording film formed on an one side surface of said substrate, a first protective film covering said recording film, and a moisture-impermeable film formed on the other side surface of said substrate via or not via an intermediate film.
摘要翻译：一种光盘，包括透明塑料基板，形成在所述基板的一个侧表面上的记录膜，覆盖所述记录膜的第一保护膜和形成在所述基板的另一侧表面上的不透湿膜，经由或不经由中间膜。

37. 发明授权

US06058100A Optical recording medium having pit rows 失效
标题翻译：具有凹坑行的光记录介质
公开(公告)号：US06058100A
公开(公告)日：2000-05-02
申请号：US928042
申请日：1997-09-11
申请人： Michinobu Mieda , Junji Hirokane , Akira Takahashi , Kenji Ohta , Shigeo Terashima
发明人： Michinobu Mieda , Junji Hirokane , Akira Takahashi , Kenji Ohta , Shigeo Terashima
IPC分类号： G11B7/24 , G11B7/00 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/26 , G11B11/10 , G11B11/105 , G11B27/10
CPC分类号： G11B7/24085 , G11B11/10565 , G11B7/00718 , G11B7/0938 , G11B7/261
摘要： Grooves and lands are provided to a magneto-optical disk so as to be alternately arranged, and recording bit strings are formed on the grooves and lands respectively so that information is recorded. Moreover, pit rows are formed on boundary sections between the adjoining grooves and lands so that address information of a recording/reproducing track is recorded, and the pit rows are formed every other boundary section. When the grooves and the lands are scanned as the recording/reproducing track by a light, an address of the recording/reproducing track is read out from the pit rows, and successively, discrimination is made whether the recording/reproducing track which is scanned by an optical spot is the groove or the land. This prevents crosstalk which causes inclusion of address information in the next pit rows, thereby, making it possible to obtain accurate address information. Moreover, since a total number of formed pit rows can be decreased and accuracy in a shape of pits is relieved, an optical recording medium can be easily produced.
摘要翻译：将槽和焊盘提供给磁光盘以交替布置，并且分别在沟槽和焊盘上形成记录位串，以便记录信息。此外，凹坑行形成在相邻的凹槽和平台之间的边界部分上，从而记录记录/再现轨迹的地址信息，并且每隔一个边界部分形成凹坑行。当通过光将凹槽和平台作为记录/再现轨迹进行扫描时，从凹坑行读出记录/再现轨道的地址，并且依次区分是否由一个光点是凹槽或土地。这防止了在下一个凹坑行中包含地址信息的串扰，从而可以获得准确的地址信息。此外，由于可以减少形成的凹坑排的总数，并且可以减轻凹坑形状的精度，因此可以容易地制造光学记录介质。

38. 发明授权

US5754523A Optical memory medium with preformed pit arrangement 失效
公开(公告)号：US5754523A
公开(公告)日：1998-05-19
申请号：US534300
申请日：1995-09-27
申请人： Toshihisa Deguchi , Kenji Ohta , Akira Takahashi , Kazuo Van , Michinobu Mieda , Tetsuya Inui
发明人： Toshihisa Deguchi , Kenji Ohta , Akira Takahashi , Kazuo Van , Michinobu Mieda , Tetsuya Inui
IPC分类号： G11B7/007 , G11B7/013 , G11B7/09 , G11B7/24 , G11B7/24085
CPC分类号： G11B7/0938 , G11B7/00745 , G11B7/24 , G11B7/24085
摘要： In an optical memory medium comprising prepits on which a light spot is impinged to obtain information and, if required, guide grooves: each of those among the prepits which are longer than the diameter of the light spot consists of a series of pit portions and unpitted portions; each of the prepits is sandwiched between two of the discontinuous portions of guide grooves adjacent to each other; the guide grooves have one or more narrow portions, and each of the prepits is sandwiched between two of the narrow portions of guide grooves adjacent to each other; or the guide grooves have one or more long portions, one or more short portions, and narrow portions formed between the long and short portions, and each of the prepits is sandwiched between two of the short portions of guide grooves adjacent to each other.

39. 发明授权

US6067285A Optical disc 失效
标题翻译：光盘
公开(公告)号：US6067285A
公开(公告)日：2000-05-23
申请号：US54125
申请日：1993-04-27
申请人： Kenji Ohta , Toshikazu Nagaura , Masayasu Futagawa , Shinji Yamagami , Yoshiteru Murakami , Hiroyuki Ikenaga , Michinobu Mieda , Tetsuya Inui , Akira Takahashi
发明人： Kenji Ohta , Toshikazu Nagaura , Masayasu Futagawa , Shinji Yamagami , Yoshiteru Murakami , Hiroyuki Ikenaga , Michinobu Mieda , Tetsuya Inui , Akira Takahashi
IPC分类号： G11B7/24 , G11B7/254 , G11B7/257 , G11B11/10 , G11B11/105 , G11B3/70 , G11B5/84
CPC分类号： G11B7/24067 , G11B11/10584 , G11B11/10586 , G11B7/2403 , G11B7/252 , G11B7/2542 , G11B7/257 , G11B2007/24306 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B7/2534 , G11B7/2585
摘要： An optical disc having a recording film formed on one surface of a plastics substrate transparent to light, a first protection film formed on the recording film, a moisture proof film formed on the other surface of the substrate, and a second protection film formed on the moisture proof film.
摘要翻译：一种光盘，其具有形成在对光透明的塑料基板的一个表面上的记录膜，形成在记录膜上的第一保护膜，形成在基板的另一个表面上的防潮膜，以及形成在该基板上的第二保护膜防潮膜。

40. 发明授权

US5676854A Optical memory having narrowed track pitch 失效
标题翻译：具有窄轨道间距的光学存储器
公开(公告)号：US5676854A
公开(公告)日：1997-10-14
申请号：US688852
申请日：1996-08-01
申请人： Tetsuya Inui , Akira Takahashi , Kenji Ohta , Michinobu Mieda , Yoshiteru Murakami
发明人： Tetsuya Inui , Akira Takahashi , Kenji Ohta , Michinobu Mieda , Yoshiteru Murakami
IPC分类号： G11B7/0045 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/26 , G11B11/105
CPC分类号： G11B7/261 , G11B11/10582 , G11B7/24 , G11B7/24079 , G11B7/26 , G11B7/00454 , G11B7/007 , G11B7/0938
摘要： A transparent substrate of an optical memory is produced by injection molding using a stamper. Grooves and lands are alternately arranged on the optical memory, for tracking of light converged on the optical memory. The groove width is set in the range of 0.3 .mu.m to 0.4 .mu.m and the groove depth is set in the rage of 80 nm to 100 nm. A decrease in the width of a land at each edge is restrained to 0.2 .mu.m in maximum. With such dimensions, even when the track pitch is set to about 1.4 .mu.m, it is possible to obtain a track crossing signal with intensity sufficient for performing an access operation to a target track. Moreover, since the dimensions bring about an improved reflectance at a land, the optical memory achieves an improved C/N and recording density.
摘要翻译：通过使用压模的注射成型制造光学存储器的透明基板。槽和焊盘交替布置在光学存储器上，用于跟踪会聚在光学存储器上的光。槽宽度设定在0.3μm〜0.4μm的范围内，槽深度设定在80nm〜100nm的范围内。每个边缘的陆地宽度减小最大限制在0.2亩。利用这样的尺寸，即使当轨道间距设置为大约1.4μm时，也可以获得具有足以对目标轨道进行访问操作的强度的轨迹交叉信号。此外，由于尺寸在陆地上产生改进的反射率，所以光学存储器实现了改进的C / N和记录密度。

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