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71. 发明授权

US06804822B2 Magnetic recording medium and magnetic recording apparatus using same 有权
标题翻译：磁记录介质和使用其的磁记录装置
公开(公告)号：US06804822B2
公开(公告)日：2004-10-12
申请号：US10132775
申请日：2002-04-25
申请人： Junichi Sato , Kosuke Watanabe , Kunio Kojima , Hiroyuki Katayama , Hiroshi Fuji , Kenji Ohta
发明人： Junichi Sato , Kosuke Watanabe , Kunio Kojima , Hiroyuki Katayama , Hiroshi Fuji , Kenji Ohta
IPC分类号： G11B724
CPC分类号： G11B5/7325 , G11B5/012 , G11B5/74 , G11B5/82 , G11B11/10508 , G11B11/10584 , G11B11/10591 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording medium, which includes a substrate and an amorphous magnetic layer, made of an amorphous magnetic material, for magnetic recording of data, is provided with an underlayer between the substrate and the amorphous magnetic layer, the underlayer being made of amorphous metal element, and having a mean thickness of 10 nm or less. In this manner, movement of magnetic domain walls of the amorphous magnetic layer is effectively limited by minute irregularities on a surface of the underlayer. This realizes a stable formation of a minute recording mark. This realizes recording having a sufficient signal quality, even when the high-density recording is performed by forming such a minute recording mark that a shortest length of the recording mark is less than 100 nm. Moreover, this allows the magnetic recording medium to have a simplified layer structure. Further, a magnetic recording apparatus magnetically records data onto a magnetic recording medium having the above arrangement, by heating a portion of the magnetic layer by radiating a light beam locally, and by applying a magnetic field on at least part of the portion of the magnetic layer on which the light beam is radiated. This provides a magnetic recording apparatus for high-density recording.
摘要翻译：包括由非晶磁性材料制成的用于磁记录数据的基板和非晶磁性层的磁记录介质在基板和非晶磁性层之间设置有底层，底层由非晶金属元件平均厚度为10nm以下。以这种方式，非晶磁性层的磁畴壁的运动被有效地限制在底层表面上的微小凹凸。这实现了一个稳定的分钟记录标记的形成。这实现了具有足够的信号质量的记录，即使当通过形成记录标记的最短长度小于100nm的这种微小记录标记来执行高密度记录时。此外，这允许磁记录介质具有简化的层结构。此外，磁记录装置将数据磁记录到具有上述结构的磁记录介质上，通过局部辐射光束加热磁性层的一部分，并且通过在磁体的至少一部分上施加磁场光束辐射的层。这提供了用于高密度记录的磁记录装置。

72. 发明授权

US06661745B1 Optical reproducing and recording method, recording medium, and optical device 失效
标题翻译：光学再现和记录方法，记录介质和光学装置
公开(公告)号：US06661745B1
公开(公告)日：2003-12-09
申请号：US09537235
申请日：2000-03-28
申请人： Junji Tominaga , Nobufumi Atoda , Hiroshi Fuji , Hiroyuki Katayama , Kenji Ohta
发明人： Junji Tominaga , Nobufumi Atoda , Hiroshi Fuji , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B700
CPC分类号： B82Y10/00 , G11B7/1387 , G11B7/24065 , G11B11/10584 , G11B11/10586
摘要： An optical device and a recording medium are provided with a recording layer for recording information by radiation of light, and a mask layer which is formed closely to the recording layer, reduces its transmittance of light due to light or heat, and transmits light to the recording layer by using a near-field effect. An optical reproducing and recording method includes the steps of: emitting a laser beam onto the mask layer, generating a near field around an area of the mask layer that has transmittance being reduced by the laser beam, and reproducing or recording optical information in the recording layer by interaction between the near field and the recording layer. With this method, it is possible to provide the optical device, recording medium, and optical reproducing and recording method that can realize a high S/N ratio upon reproducing and recording and that can readily form a recording mark.
摘要翻译：光学器件和记录介质设置有用于通过照射光来记录信息的记录层和与记录层紧密相邻形成的掩模层，减少其由于光或热导致的光的透射率，并将光透射到记录层通过使用近场效应。光学再现和记录方法包括以下步骤：将激光束发射到掩模层上，产生围绕掩模层的区域的近场，该区域具有通过激光束减少的透射率，以及在记录中再现或记录光学信息通过近场和记录层之间的相互作用来形成层。利用这种方法，可以提供在再现和记录时可以实现高S / N比并且可以容易地形成记录标记的光学设备，记录介质和光学再现和记录方法。

73. 发明授权

US5347510A Method of manufacturing a master plate where its guide groove has an inclined angle 失效
标题翻译：制造其导向槽具有倾斜角的主板的方法
公开(公告)号：US5347510A
公开(公告)日：1994-09-13
申请号：US4266
申请日：1993-01-14
申请人： Junji Hirokane , Hiroyuki Katayama , Junichiro Nakayama , Michinobu Mieda , Kenji Ohta
发明人： Junji Hirokane , Hiroyuki Katayama , Junichiro Nakayama , Michinobu Mieda , Kenji Ohta
IPC分类号： G01Q80/00 , G11B7/007 , G11B7/24 , G11B7/26
CPC分类号： G11B7/24076 , G11B7/261
摘要： A master plate for manufacturing a stamper for injecting molding of an optical memory device has a substrate having a plurality of guiding grooves on a surface thereof with a predetermined interval. The respective edge portions of the guiding grooves are inclined with respect to the surface of the substrate at an angle not more than 30.degree.. According to a manufacturing method of the master plate, the post-baking process is carried out at a baking temperature of not less than 150.degree. C. and an etching gas containing O.sub.2 gas of 4 (SCCM) to 10 (SCCM) is used. Thus, even when the copying is carried out with respect to the substrate of the optical memory device according to the injection molding process wherein the stamper, which is manufactured based on the above-mentioned master plate, is used, the mold release of the stamper can be carried out without being caught by the substrate. Thus, it is possible to keep the respective shapes of the guiding grooves of the s tamper, thereby enabling of manufacturing the substrate of the optical memory device with high repeatability.
摘要翻译：用于制造用于注射成型光学存储器件的压模的母板具有在其表面上以预定间隔具有多个导向槽的衬底。引导槽的各个边缘部分相对于基板的表面以不大于30°的角度倾斜。根据主板的制造方法，后烘烤处理在不低于150℃的烘烤温度下进行，并且使用含有4（SCCM）至10（SCCM）的O 2气体的蚀刻气体。因此，即使在使用根据上述主板制造的压模的注射成型工艺相对于光学存储器件的基板进行复印时，压模的脱模可以在不被基材捕获的情况下进行。因此，可以保持篡改器的引导槽的各自的形状，从而能够以高重复性制造光学存储器件的基板。

74. 发明授权

US5453884A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5453884A
公开(公告)日：1995-09-26
申请号：US272273
申请日：1994-07-08
申请人： Kenji Ohta , Junichiro Nakayama , Hiroyuki Katayama
发明人： Kenji Ohta , Junichiro Nakayama , Hiroyuki Katayama
IPC分类号： G11B11/10 , G11B7/09 , G11B11/105 , G11B11/00 , G11B5/72
CPC分类号： G11B11/1058 , G11B11/10576 , G11B11/10582 , G11B7/0914 , Y10S428/90
摘要： A magneto-optical disk having a magnetic layer and a conductive layer laminated on a transparent substrate, and having a lubricant layer provided on the conductive layer. Recording and reproduction on and from the magneto-optical disk are performed by a flying head. The flying head glides above and lands on the lubricant layer. The magneto-optical disk can therefore be removed from the device easily since a magnetic head does not adhere to a recording medium. Further, a depressing force exerted on the flying head is controlled so as to maintain a constant floating gap between the flying head and the recording medium. The depressing force is controlled by electrostatic capacity between an electrode, provided on a bottom face of the flying head, and the conductive layer. Consequently, highly reliable recordings can be made since a magnetic field intensity applied to the magnetic layer becomes constant. It is desirable that the lubricant layer be composed of an organic binder containing a powder belonging to the ethylene tetrafluoride resin family.
摘要翻译：一种磁光盘，其具有层叠在透明基板上的磁性层和导电层，并且具有设置在导电层上的润滑层。在磁光盘上进行记录和再现由飞头执行。飞头在上方滑动并落在润滑剂层上。因此，由于磁头不粘附到记录介质上，因此可以容易地从设备中移除磁光盘。此外，控制施加在飞头上的压下力，以便在飞头和记录介质之间保持恒定的浮动间隙。抑制力由设置在飞头的底面上的电极与导电层之间的静电电容控制。因此，由于施加到磁性层的磁场强度变得恒定，所以可以进行高度可靠的记录。希望润滑剂层由含有属于四氟乙烯系树脂的粉末的有机粘合剂构成。

75. 发明授权

US5386400A Magneto-optical head device having a lubricated member 失效
标题翻译：具有润滑部件的磁光头装置
公开(公告)号：US5386400A
公开(公告)日：1995-01-31
申请号：US183259
申请日：1994-01-19
申请人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
发明人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B5/40 , G11B5/60 , G11B11/105 , G11B23/50 , G11B33/14 , G11B13/04
CPC分类号： G11B5/6005 , G11B11/1058 , G11B23/505 , G11B33/148 , G11B5/6082 , G11B5/40 , G11B5/6011
摘要： A magneto-optical recording device has a flying head that floats over a magneto-optical disk according to the rotation of the magneto-optical disk. The flying head includes a head slider. A solid lubricant is applied to the bottom surface of the head slider facing the magneto-optical disk. Since the solid lubricant makes the flying head contact with the magneto-optical disk smoothly, the scratching and wear of the magneto-optical disk and the flying head decrease. Therefore, the reliability and the durability of the magneto-optical recording device can improve. Physical protrusions and recessions or holes containing fluorocarbon oil therein may be formed instead of the solid lubricant. In this case, the contact area between the flying head and the magneto-optical disk is also smaller than the case where physical protrusions and recessions are not formed. In addition, with a configuration such that thin-film layers made of a fluorocarbon resin having an excellent lubricity are formed on both sides of the bottom surface of the head slider, since the magneto-optical disk comes into contact with the head smoothly, the reliability and the durability of the magneto-optical recording device can improve.
摘要翻译：磁光记录装置具有根据磁光盘的旋转而浮动在磁光盘上的飞头。飞头包括头滑块。将固体润滑剂施加到面向磁光盘的磁头滑块的底表面上。由于固体润滑剂使飞头与磁光盘平滑地接触，所以磁光盘和飞头的划伤和磨损减小。因此，可以提高磁光记录装置的可靠性和耐久性。可以形成其中包含氟碳油的物理突起和凹陷或孔，而不是固体润滑剂。在这种情况下，飞头和磁光盘之间的接触面积也小于没有形成物理突起和凹陷的情况。此外，由于磁头与磁头滑块底面的两侧形成具有优异的润滑性的氟碳树脂制成的薄膜层，所以由于磁光盘顺利地与磁头接触，所以，可以提高磁光记录装置的可靠性和耐久性。

76. 发明授权

US5328740A Magneto-optical recording medium and method for processing the surface 失效
标题翻译：磁光记录介质及表面处理方法
公开(公告)号：US5328740A
公开(公告)日：1994-07-12
申请号：US650283
申请日：1991-02-04
申请人： Junichiro Nakayama , Yoshiteru Murakami , Hiroyuki Katayama , Kenji Ohta
发明人： Junichiro Nakayama , Yoshiteru Murakami , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B11/10 , B29C59/02 , B29L17/00 , G11B5/60 , G11B7/26 , G11B11/105 , B32B3/02 , B32B3/10 , G11B5/66
CPC分类号： G11B5/6005 , G11B11/1058 , G11B11/10584 , Y10S428/90 , Y10S428/928 , Y10T428/218 , Y10T428/24355 , Y10T428/31935
摘要： A surface of a magneto-optical recording medium of the present invention is textured with fine and physical protrusions and recessions. The shapes of physical protrusions and recessions vary at each radial locations on the medium such that, for example, rough protrusions and recessions are formed in inner parts of the recording medium and fine protrusions and recessions are formed in outer parts thereof. Therefore, floating force given to a floating head from the medium being rotated based on the constant angular velocity method through an air layer in the outer parts equals floating force in the inner parts. Consequently, since the floating height of the floating head becomes constant irrespective of radial locations on the medium, information can be recorded under constant recording conditions, permitting the accuracy of the recording to improve. Regarding a method for processing the surface of a magneto-optical recording medium relating to the present invention, for example, a texture tape whose roughness is large is used in inner parts of the medium while a texture tape whose roughness is small is used in outer parts thereof. As a result, a magneto-optical recording medium having the above characteristics is produced.
摘要翻译：本发明的磁光记录介质的表面具有精细和物理的突出和凹陷的纹理。物理突起和凹陷的形状在介质上的每个径向位置处变化，使得例如在记录介质的内部形成粗糙的突起和凹陷，并且在其外部形成微小的突起和凹陷。因此，通过外部部分中的空气层，基于恒定的角速度法，从介质旋转的浮动浮动力等于内部部分的浮力。因此，由于浮动头的浮动高度与介质上的径向位置无关地变得恒定，所以可以在恒定的记录条件下记录信息，从而可以提高记录的准确性。关于本发明的磁光记录介质的表面的处理方法，例如，在粗糙度小的纹理带用于外部的粗糙度较小的纹理带时，粗糙度大的纹理带用于介质的内部，其部分。结果，产生具有上述特性的磁光记录介质。

77. 发明授权

US5082690A Process for manufacturing a magneto-optic disc 失效
标题翻译：制造磁光盘的方法
公开(公告)号：US5082690A
公开(公告)日：1992-01-21
申请号：US523756
申请日：1990-05-15
申请人： Tomoyuki Miyake , Hiroyuki Katayama , Junichiro Nakayama , Yoshiteru Murakami , Kenji Ohta
发明人： Tomoyuki Miyake , Hiroyuki Katayama , Junichiro Nakayama , Yoshiteru Murakami , Kenji Ohta
IPC分类号： G11B11/10 , F26B13/10 , G11B11/105
CPC分类号： F26B13/103 , G11B11/10584
摘要： The present invention provides a process for manufacturing a magneto-optic disc comprising at least a transparent substrate, a magneto-optic recording film, and a protecting film made of resin for protecting the magneto-optic recording film, comprising the steps of forming the magneto-optic recording film over the entire one side surface of the transparent substrate; providing in a portion adjacent to the peripheral edge of the magneto-optic recording film an annular groove extending in depth through the magneto-optic recording film to the transparent substrate; and forming the protecting film over the surfaces of the magneto-optic recording film and the annular groove.

78. 发明授权

US5077725A Optical memory device and apparatus for manufacturing the same 失效
标题翻译：光存储装置及其制造装置
公开(公告)号：US5077725A
公开(公告)日：1991-12-31
申请号：US374071
申请日：1989-06-30
申请人： Junichiro Nakayama , Kazuhiro Kimura , Hiroyuki Katayama , Kenji Ohta
发明人： Junichiro Nakayama , Kazuhiro Kimura , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B7/26
CPC分类号： G11B7/26 , Y10T156/1057 , Y10T156/12
摘要： An apparatus for manufacturing an optical memory device, which comprises supplying rolls for continuously supplying a sheet-like substrate, a masking endless belt having a plurality of windows of size corresponding to the optical memory device, rolls for moving the sheet-like substrate and the masking endless belt in the same direction and at the same speed, a recording portion forming device for forming recording portions on the substrate through the masking endless belt, a guide truck providing device for providing along the substrate guide trucks for guiding a light beam, and a cutting device for cutting the substrate to a predetermined size.
摘要翻译：一种用于制造光学存储器件的设备，其包括供应用于连续供应片状衬底的辊，具有与光学存储器件相对应的尺寸的多个窗口的掩模环形带，用于移动片状衬底的辊和在相同的方向和相同的速度下掩蔽环形带，用于通过掩模环形带在基板上形成记录部分的记录部分形成装置，用于沿着基板引导卡车提供用于引导光束的引导卡车提供装置，以及用于将基板切割成预定尺寸的切割装置。

79. 发明授权

US06876603B2 Information write/read head including an optical slit having a light emitting section whose width is shorter than a light beam diffraction limit 有权
$Information write/read head including an optical slit having a light emitting section whose width is shorter than a light beam diffraction limit$
标题翻译：信息写入/读取头，包括具有宽度短于光束衍射极限的发光部的光学狭缝
公开(公告)号：US06876603B2
公开(公告)日：2005-04-05
申请号：US09864060
申请日：2001-05-23
申请人： Hiroshi Fuji , Hiroyuki Katayama , Kunio Kojima , Kenji Ohta
发明人： Hiroshi Fuji , Hiroyuki Katayama , Kunio Kojima , Kenji Ohta
IPC分类号： G11B11/10 , G11B5/00 , G11B5/02 , G11B5/127 , G11B13/04 , G11B21/10 , G11B11/00
CPC分类号： G11B5/127 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： An information write/read head writes or reads information on or from recording tracks by the heat-assisted system. The information write/read head includes a magnetic head provided in such a manner that a longitudinal direction of a magnetic gap crosses a scanning direction. Further, the information write/read head includes an aperture slit having a length of not less than a diffraction limit of a light beam, and a width shorter than the diffraction limit in the direction orthogonal to the recording track, which is formed in such a manner that the longitudinal direction thereof is aligned in a scanning direction of the recording track.
摘要翻译：信息写入/读取头通过热辅助系统在记录轨道上或从记录轨迹读取信息。信息写入/读取头包括以使得磁隙的纵向方向与扫描方向交叉的方式设置的磁头。此外，信息写入/读取头包括具有不小于光束的衍射极限的长度的孔径狭缝，并且其宽度比在与记录轨道正交的方向上的衍射极限短，使得其纵向方向在记录轨道的扫描方向上对齐。

80. 发明授权

US06819648B1 Optical sample and method of writing and reading information on the same 失效
标题翻译：光学样本和写入和读取信息的方法相同
公开(公告)号：US06819648B1
公开(公告)日：2004-11-16
申请号：US09585554
申请日：2000-06-02
申请人： Junji Tominaga , Nobufumi Atoda , Hiroshi Fuji , Hiroyuki Katayama , Kenji Ohta
发明人： Junji Tominaga , Nobufumi Atoda , Hiroshi Fuji , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B700
CPC分类号： G11B7/252 , B82Y10/00 , G11B7/24065 , G11B7/243 , G11B7/2534 , G11B2007/25706 , G11B2007/2571 , G11B2007/25715 , G11B2007/25716
摘要： An optical sample includes a mask layer made of a material in which an aperture is produced by a chemical change, which is reversible, upon application of heat or light, and a recording layer provided at a position where an evanescent field produced in the aperture when light is applied to the mask layer can reach. Since the aperture is produced in the mask layer by a chemical change, it can be opened and closed at a high speed and hence a high-speed transfer of information can be achieved.
摘要翻译：光学样品包括掩模层，其由其中通过化学变化产生孔的材料制成，其在施加热或光时是可逆的，以及设置在在孔中产生的ev逝场的位置处的记录层，光应用于掩模层可以达到。由于通过化学变化在掩模层中产生孔径，所以可以高速地打开和关闭孔，因此可以实现高速的信息传递。

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