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51. 发明授权

US5680376A Optical recording medium, and apparatus and method for recording and reproducing information on the same 失效
标题翻译：光记录介质以及用于记录和再现信息的装置和方法
公开(公告)号：US5680376A
公开(公告)日：1997-10-21
申请号：US648899
申请日：1996-05-16
申请人： Hiroyuki Katayama , Junji Hirokane , Akira Takahashi , Kenji Ohta
发明人： Hiroyuki Katayama , Junji Hirokane , Akira Takahashi , Kenji Ohta
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/14 , G11B20/12 , G11B20/18 , G11B27/10 , G11B27/30
CPC分类号： G11B7/00745 , G11B27/105 , G11B27/3027 , G11B7/013 , G11B7/14
摘要： In an optical disk, since a header section has only one recording section for address information, the capacity of memory where a user can freely record data is increased. In an optical disk drive, four laser beams have a fixed positional relation. Based on the address information of a header section read out by at least one of the laser beams and the positional relation among the laser beams, the address information of tracks being scanned by the other laser beams is obtained. It is therefore possible to accurately record or reproduce information on the optical disk.
摘要翻译：在光盘中，由于报头部分仅具有一个用于地址信息的记录部分，所以用户可以自由记录数据的存储器的容量增加。在光盘驱动器中，四个激光束具有固定的位置关系。基于通过至少一个激光束读出的标题部分的地址信息和激光束之间的位置关系，获得由其他激光束扫描的轨道的地址信息。因此，可以准确地在光盘上记录或再现信息。

52. 发明授权

US5644566A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5644566A
公开(公告)日：1997-07-01
申请号：US432683
申请日：1995-05-02
申请人： Junichiro Nakayama , Michinobu Mieda , Hiroyuki Katayama , Junji Hirokane , Akira Takahashi , Kenji Ohta
发明人： Junichiro Nakayama , Michinobu Mieda , Hiroyuki Katayama , Junji Hirokane , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/105 , G11B7/00
CPC分类号： G11B11/10586 , G11B11/10517
摘要： An intermediate layer is formed between a memory layer and a writing layer. The intermediate layer shows in-plane magnetization at room temperature, and perpendicular magnetization within a temperature range within which the coercive force of the memory layer is lower than that of the writing layer. The Curie point of the intermediate layer is lower than that of the memory layer. Like a conventional method, light-intensity modulation overwriting is performed by irradiating laser light whose intensity has been modulated between high level and low level while applying a recording magnetic field after performing an initialization. Even when there are variations in the raised temperature by the irradiation of laser light of high level, it is possible to perform stable overwriting with light-intensity modulation by satisfactorily restraining the exchange forces between the intermediate layer and the writing layer from causing coupling.
摘要翻译：在存储层和写入层之间形成中间层。中间层在室温下显示出平面内的磁化强度，在存储层的矫顽力低于书写层的温度范围内的垂直磁化强度。中间层的居里点低于存储层的居里点。像传统方法一样，通过在执行初始化之后照射记录磁场的同时照射强度已经被调制在高电平和低电平之间的激光来执行光强调制重写。即使通过高水平的激光照射而升高的温度存在变化，也可以通过令人满意地抑制中间层与书写层之间的交换作用而进行光强调制来进行稳定的重写。

53. 发明授权

US5635296A Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation 失效
标题翻译：通过光强度调制允许覆盖的磁光记录介质
公开(公告)号：US5635296A
公开(公告)日：1997-06-03
申请号：US260095
申请日：1994-06-15
申请人： Junichiro Nakayama , Michinobu Mieda , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Junichiro Nakayama , Michinobu Mieda , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10506 , G11B11/10523 , G11B11/10586 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium includes a first magnetic layer, a second magnetic layer and a third magnetic layer respectively made of rare earth-transition metal alloys. The first magnetic layer has a perpendicular magnetization in a temperature range between room temperature and its Curie temperature. The second magnetic layer has its Curie temperature higher than that of the first magnetic layer, and coercive force thereof at room temperature is nearly zero. The third magnetic layer has a perpendicular magnetization in a temperature range between room temperature and its Curie temperature. The Curie temperature of the third magnetic layer is higher than the Curie temperature of the first magnetic layer. The coercive force of the third magnetic layer at room temperature is lower than that of the first magnetic layer. The compensation temperature of the third magnetic layer is higher than that of the second magnetic layer. Having the above arrangement, an overwriting is permitted on the magneto-optical recording medium, and an initializing magnetic field and a recording magnetic field in a magneto-optical recording and reproducing device are set in the same direction.
摘要翻译：磁光记录介质包括分别由稀土 - 过渡金属合金制成的第一磁性层，第二磁性层和第三磁性层。第一磁性层在室温和居里温度之间的温度范围内具有垂直磁化强度。第二磁性层的居里温度高于第一磁性层，其室温下的矫顽力几乎为零。第三磁性层在室温与其居里温度之间的温度范围内具有垂直磁化强度。第三磁性层的居里温度高于第一磁性层的居里温度。室温下第三磁性层的矫顽力低于第一磁性层的矫顽力。第三磁性层的补偿温度高于第二磁性层的补偿温度。具有上述结构，在磁光记录介质上允许重写，磁光记录和再现装置中的初始化磁场和记录磁场被设置在相同的方向上。

54. 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。

55. 发明授权

US5422865A Light modulation method for magneto-optical recording device 失效
标题翻译：磁光记录装置的光调制方法
公开(公告)号：US5422865A
公开(公告)日：1995-06-06
申请号：US163355
申请日：1993-12-07
申请人： Hiroyuki Katayama , Junji Hirokane , Junichiro Nakayama , Akira Takahashi , Kenji Ohta
发明人： Hiroyuki Katayama , Junji Hirokane , Junichiro Nakayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B11/10506 , G11B11/10521
摘要： A magneto-optical recording method includes the steps of applying an external magnetic field perpendicularly onto the magnetic thin film with perpendicular magnetization of a magneto-optical recording medium and projecting a light beam onto the magneto-optical recording medium; and modulating the intensity of the light beam between the first light intensity and the second light intensity in response to the information to be recorded while shifting a spot of the light beam, thereby recording information. In the above method, the first light intensity is set such that by reducing the coercive force of the magnetic thin film with perpendicular magnetization, a magnetic domain is formed on the magnetic thin film with perpendicular magnetization, and that the magnetic domain is moved as the spot of the light beam is shifted. The second light intensity is set such that by increasing the coercive force of the magnetic thin film with perpendicular magnetization, the magnetic domain is fixed to the position.
摘要翻译：磁光记录方法包括以下步骤：利用磁光记录介质的垂直磁化将磁场垂直地施加到磁性薄膜上并将光束投射到磁光记录介质上; 以及响应于要移动光束的点而要记录的信息，调制第一光强度和第二光强度之间的光束的强度，从而记录信息。在上述方法中，第一光强度被设定为通过以垂直磁化强度降低磁性薄膜的矫顽力，在磁性薄膜上以垂直磁化形成磁畴，并且磁畴作为光束的光斑被移动。第二光强度被设定为通过以垂直磁化强度增加磁性薄膜的矫顽力，将磁畴固定在该位置上。

56. 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。

57. 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。

58. 发明授权

US5087535A Method of manufacturing photo-mask and photo-mask manufactured thereby 失效
标题翻译：制造照相胶片和制造的照相胶片的方法
公开(公告)号：US5087535A
公开(公告)日：1992-02-11
申请号：US19704
申请日：1987-02-27
申请人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Tetsuya Inui , Kenji Ohta , Junichi Washo , Tomoyuki Miyake , Kazuo Van , Michinobu Mieda
发明人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Tetsuya Inui , Kenji Ohta , Junichi Washo , Tomoyuki Miyake , Kazuo Van , Michinobu Mieda
IPC分类号： G03F1/00 , G03F1/54 , G03F1/68 , G11B7/26
CPC分类号： G03F1/54 , G03F1/68 , G11B7/261 , Y10S430/146
摘要： A photo-mask and a method of manufacturing a photo-mask, which includes the steps of applying a resist film onto a substrate of quartz, glass and the like, subjecting the resist film to light exposure and development to form a fine resist pattern, etching the mask substrate covered by the fine resist pattern causing a non-light transmitting thin film of Cr, Ta, etc. to adhere thereon by vapor deposition, sputtering and the like, and removing the thin film on the resist pattern together with the resist film, thereby to form the photo-mask.

59. 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.

60. 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。

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