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51. 发明授权

US5079113A Photo-mask 失效
标题翻译：照片面具
公开(公告)号：US5079113A
公开(公告)日：1992-01-07
申请号：US450438
申请日：1989-12-14
申请人： Kenji Ohta , Junji Hirokane , Akira Shibata , Yoshiyuki Nagahara , Kazuo Van , Michinobu Mieda , Tetsuya Inui
发明人： Kenji Ohta , Junji Hirokane , Akira Shibata , Yoshiyuki Nagahara , Kazuo Van , Michinobu Mieda , Tetsuya Inui
IPC分类号： G03F1/48
CPC分类号： G03F1/48
摘要： A photo-mask comprises a light-permeable substrate, a plurality of light-shielding films that are disposed on the substrate, the light-shielding films forming a mask pattern, and a light-permeable protective film that is disposed over the surface of the substrate including the light-shielding films so as to protect the light-shielding films.
摘要翻译：光掩模包括透光基板，设置在基板上的多个遮光膜，形成掩模图案的遮光膜，以及设置在该基板的表面上的透光保护膜包括遮光膜的基板，以保护遮光膜。

52. 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。

53. 发明授权

US5414652A Magneto-optical memory element 失效
标题翻译：磁光存储元件
公开(公告)号：US5414652A
公开(公告)日：1995-05-09
申请号：US293720
申请日：1994-08-22
申请人： Michinobu Mieda , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Michinobu Mieda , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B7/007 , G11B11/105 , G11C13/06
CPC分类号： G11B7/24079 , G11B11/10584 , G11B7/00718
摘要： A magneto-optical memory element including: grooves, formed on at least one surface of a transparent substrate, for guiding a light beam; a magneto-optical recording layer formed on the surface of said transparent substrate on which the grooves are formed, wherein a width of each groove and a width of each land formed between the grooves are substantially equal, information is recorded on and reproduced from tracks on the grooves and the lands, and a groove depth d (track depth) is arranged such that 0.13.times..lambda./n.ltoreq.d.ltoreq. 0.18.times. .lambda./n, where .lambda. is a wavelength of the light beam and n is a refraction index of the transparent substrate. Assuming that a diameter of the light beam at a portion where a light intensity of the light beam becomes 1/e.sup.2 of a light intensity of the center of the light beam is L, a track pitch p is arranged such that 0.6.ltoreq.L/p.ltoreq.1.2. Therefore, even when the track density is increased, i.e., the width of the groove portion and the width of the land portion are reduced, a satisfactory signal quality with low level of crosstalk is obtained. Accordingly, such a magneto-optical disk achieves a high recording density.
摘要翻译：一种磁光存储元件，包括：形成在透明基板的至少一个表面上的用于引导光束的凹槽; 形成在所述透明基板的形成有凹槽的表面上的磁光记录层，其中每个凹槽的宽度和在凹槽之间形成的每个焊盘的宽度基本上相等，信息被记录在磁道上并从其上再现凹槽和焊盘以及凹槽深度d（磁道深度）被布置成使得0.13xλ/n≤d≤0.18xλ/ n，其中λ是光束的波长，n是透明基板的折射率。假设在光束的光强度变为光束中心的光强度的1 / e2的部分处的光束的直径为L，则轨道间距p被布置成使得0.6≤L /p

54. 发明授权

US5081614A Magneto-optical head utilizing central and peripheral portions of reflected light flux for different purposes 失效
标题翻译：用于不同目的的反射光通量的中心和外围部分的磁光头
公开(公告)号：US5081614A
公开(公告)日：1992-01-14
申请号：US577817
申请日：1990-09-04
申请人： Akira Takahashi , Toshihisa DeGuchi , Yoshiteru Murakami , Michinobu Mieda , Kazuo Van , Kenji Ohta , Hiroyuki Katayama , Tomoyuki Miyake
发明人： Akira Takahashi , Toshihisa DeGuchi , Yoshiteru Murakami , Michinobu Mieda , Kazuo Van , Kenji Ohta , Hiroyuki Katayama , Tomoyuki Miyake
IPC分类号： G11B7/12 , G11B7/135 , G11B11/105
CPC分类号： G11B11/10532 , G11B7/12 , G11B7/1381
摘要： A magneto-optical head wherein a light flux, which is reflected from a recording medium, is separated into its central portion and remaining portion. The central light flux portion is only used as a magneto-optical signal while the remaining light flux portion is only used as an optical servo signal.
摘要翻译：一种磁光头，其中从记录介质反射的光束被分离成其中心部分和剩余部分。中央光束部分仅用作磁光信号，而剩余光通量部分仅用作光伺服信号。

55. 发明授权

US06707766B2 Magneto-optical storage media 有权
标题翻译：磁光存储介质
公开(公告)号：US06707766B2
公开(公告)日：2004-03-16
申请号：US10099968
申请日：2002-03-19
申请人： Go Mori , Naoyasu Iketani , Michinobu Mieda , Akira Takahashi
发明人： Go Mori , Naoyasu Iketani , Michinobu Mieda , Akira Takahashi
IPC分类号： G11B1100
CPC分类号： G11B11/10593 , G11B11/10584
摘要： A magneto-optical storage medium includes an interference layer, a magnetic domain expansion layer, an intermediate layer, a magnetic masking layer, a recording layer, and a protection layer which are sequentially formed on a substrate. The magnetic domain expansion layer produces a smaller frictional force due to wall coercivity than do the other magnetic layers. The intermediate layer has the Curie temperature TC2 which is lower than those of the other magnetic layers. The magnetic masking layer is in a perpendicular magnetization state at temperatures that are in a proximity of TC2, and changes into an in-plane magnetization state at temperatures that are higher than the proximity of TC2. The recording layer produces a higher coercive force than those produced by the magnetic domain expansion layer at room temperature.
摘要翻译：磁光存储介质包括依次形成在基板上的干涉层，磁畴扩展层，中间层，磁屏蔽层，记录层和保护层。与其它磁性层相比，磁畴扩展层由于壁矫顽力而产生较小的摩擦力。中间层的居里温度TC2低于其他磁性层的居里温度TC2。磁屏蔽层在接近TC2的温度下处于垂直磁化状态，并且在高于TC2的接近度的温度下变为面内磁化状态。记录层产生比在室温下由磁畴扩展层产生的矫顽力更高的矫顽力。

56. 发明授权

US06338911B1 Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US06338911B1
公开(公告)日：2002-01-15
申请号：US09429082
申请日：1999-10-29
申请人： Go Mori , Naoyasu Iketani , Michinobu Mieda , Akira Takahashi
发明人： Go Mori , Naoyasu Iketani , Michinobu Mieda , Akira Takahashi
IPC分类号： G11B566
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593 , Y10S428/90
摘要： A reproduction layer, a magnetic domain extending layer, an intermediate layer, and a recording layer are formed in this order. The magnetic domain extending layer, the intermediate layer, and the recording layer are exchange-coupled. The intermediate layer has a Curie temperature lower than that of any other magnetic layer. A non-magnetic intermediate layer is formed between the reproduction layer and the magnetic domain extending layer. Upon reproduction, magnetization information in the recording layer is transferred to and extended in the magnetic domain extending layer, where an extended magnetic domain is formed. The reproduction layer is magnetostatically coupled with the magnetic domain extending layer, so that the extended magnetic domain is transferred to the reproduction layer. This makes it possible to provide a magneto-optical recording medium characterized in moving of magnetic domain walls and extension of magnetic domains in good conditions, and increased signal intensity with a simpler structure.
摘要翻译：依次形成再生层，磁畴延伸层，中间层和记录层。磁畴延伸层，中间层和记录层是交换耦合的。中间层的居里温度低于任何其他磁性层的居里温度。在再现层和磁畴延伸层之间形成非磁性中间层。在再现时，记录层中的磁化信息被转移到扩展磁畴的磁畴延伸层中并扩展。再现层与磁畴延伸层磁静电耦合，从而将扩展磁畴转移到再现层。这使得可以提供一种磁光记录介质，其特征在于在良好的条件下磁畴壁的移动和磁畴的延伸，并且以更简单的结构增加信号强度。

57. 发明授权

US06128274A Optical recording disk capable of suppressing bimetallic effects caused by thermal expansion 有权
标题翻译：能够抑制由热膨胀引起的双金属效应的光记录盘
公开(公告)号：US06128274A
公开(公告)日：2000-10-03
申请号：US188581
申请日：1998-11-09
申请人： Go Mori , Michinobu Mieda , Naoyasu Iketani , Ippei Suzuki , Yoshiteru Murakami , Akira Takahashi
发明人： Go Mori , Michinobu Mieda , Naoyasu Iketani , Ippei Suzuki , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B7/24 , G11B7/241 , G11B7/257 , G11B11/105
CPC分类号： G11B7/252 , G11B7/24056 , G11B7/24067 , G11B11/10584 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B2007/25718 , G11B7/2533 , G11B7/2534 , G11B7/2542 , G11B7/2578
摘要： An optical disk of the present invention includes a transparent dielectric film formed on a light incident side of the disk on an opposite side of an optical recording film so as to sandwich the transparent substrate therebetween, for suppressing bimetallic effects caused by a difference in thermal expansion between an optical recording film formed on an optical recording surface and the transparent substrate, whereby changes in tilt against temperature changes can be suppressed. Further, by an optimal selection of a reflectance of the transparent dielectric film, unwanted reflection due to multi-interference can be reduced at the same time.
摘要翻译：本发明的光盘包括形成在光记录膜的相对侧上的光盘入射侧的透明电介质膜，以将透明基板夹在其间，用于抑制由热膨胀差引起的双金属效应在形成在光学记录表面上的光学记录膜与透明基板之间，由此能够抑制倾斜温度变化的变化。此外，通过对透明电介质膜的反射率的最佳选择，可以同时减少由于多次干涉引起的不期望的反射。

58. 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。

59. 发明授权

US06477120B1 Magneto-optical recording medium 有权
标题翻译：磁光记录介质
公开(公告)号：US06477120B1
公开(公告)日：2002-11-05
申请号：US09451260
申请日：1999-11-30
申请人： Naoyasu Iketani , Go Mori , Michinobu Mieda , Akira Takahashi
发明人： Naoyasu Iketani , Go Mori , Michinobu Mieda , Akira Takahashi
IPC分类号： G11B1100
CPC分类号： G11B11/10586 , G11B11/10515 , G11B11/10584
摘要： In order to provide a magneto-optical recording medium which can select a single recording magnetic domain in the recording layer accurately and expand and transfer the same to the reproducing layer, the magneto-optical recording medium is arranged in the following manner. That is, the magnetization direction of the reproducing layer is in-plane at room temperature and shifts to perpendicular at or above a predetermined temperature Ttrans.. The recording layer is a magnetic layer which is magneto-statically coupled to the reproducing layer and shows the perpendicular magnetization up to its Curie temperature. The magnetic mask layer is provided between the recording layer and reproducing layer, and the magnetization thereof is reduced to 0 (zero) at or above a predetermined temperature (Tm) which is at or above Ttrans.. The magnetization of the magnetic mask layer is larger than that of the recording layer at least in a range between room temperature and Ttrans..
摘要翻译：为了提供可以精确地选择记录层中的单个记录磁畴并将其扩展并传送到再现层的磁光记录介质，磁光记录介质以如下方式布置。也就是说，再现层的磁化方向在室温下处于平面，并在预定温度T trans以上移动到垂直方向。记录层是磁性层，磁性层与再现层磁耦合，并显示出垂直磁化强度达其居里温度。磁记录层设置在记录层和再现层之间，其磁化强度在等于或高于Ttrans的预定温度（Tm）以上或者高于Ttrans的0（零）。磁屏蔽层的磁化强度为大于记录层的至少在室温和Ttrans之间的范围内。

60. 发明授权

US06388956B1 Magneto-optical storage media 有权
公开(公告)号：US06388956B1
公开(公告)日：2002-05-14
申请号：US09440929
申请日：1999-11-16
申请人： Go Mori , Naoyasu Iketani , Michinobu Mieda , Akira Takahashi
发明人： Go Mori , Naoyasu Iketani , Michinobu Mieda , Akira Takahashi
IPC分类号： G11B1100
CPC分类号： G11B11/10593 , G11B11/10584
摘要： A magneto-optical storage medium includes an interference layer, a magnetic domain expansion layer, an intermediate layer, a magnetic masking layer, a recording layer, and a protection layer which are sequentially formed on a substrate. The magnetic domain expansion layer produces a smaller frictional force due to wall coercivity than do the other magnetic layers. The intermediate layer has the Curie temperature TC2 which is lower than those of the other magnetic layers. The magnetic masking layer is in a perpendicular magnetization state at temperatures that are in a proximity of TC2, and changes into an in-plane magnetization state at temperatures that are higher than the proximity of TC2. The recording layer produces a higher coercive force than those produced by the magnetic domain expansion layer at room temperature.

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