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21. 发明授权

US5648162A Magneto-optical recording medium and a method of recording and/or reproducing using the same 失效
标题翻译：磁光记录介质及使用其的记录和/或再现方法
公开(公告)号：US5648162A
公开(公告)日：1997-07-15
申请号：US177096
申请日：1993-12-30
申请人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10515 , G11B11/10521 , G11B11/10591 , Y10S428/90 , Y10T428/12736 , Y10T428/12771 , Y10T428/12868 , Y10T428/12896 , Y10T428/12903 , Y10T428/1291 , Y10T428/12917 , Y10T428/12924 , Y10T428/12931 , Y10T428/12937 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium including a base; a readout layer formed on the base; a recording layer formed on the readout layer; and an auxiliary recording layer formed on the recording layer, each of the readout layer, recording layer and auxiliary recording layer being made of an alloy of rare-earth metal and transition metal showing ferrimagnetism. The alloy composition of each layer is determined so that the recording layer has a Curie temperature lower than Curie temperatures of the readout layer and the auxiliary recording layer and has a coercive force higher than coercive forces of the readout layer and the auxiliary recording layer at room temperature and that, when the temperature of the recording layer is raised to near its Curie temperature while perpendicularly applying a uniform recording magnetic field to each layer, a sublattice magnetic moment of the rare-earth metal of the readout layer and a sublattice magnetic moment of the rare-earth metal of the auxiliary recording layer are antiparallel to each other. And, a method of recording information on the magneto-optical recording medium. This structure enables overwriting by light-intensity modulation without using an initializing magnetic field.
摘要翻译：一种包括基底的磁光记录介质; 形成在基底上的读出层; 形成在读出层上的记录层; 以及形成在记录层上的辅助记录层，每个读出层，记录层和辅助记录层由稀土金属和过渡金属的合金制成，显示出铁磁性。确定每层的合金组成，使得记录层的居里温度低于读出层和辅助记录层的居里温度，并且具有高于室内读出层和辅助记录层的矫顽力的矫顽力并且当在每个层垂直地施加均匀的记录磁场的同时将记录层的温度升高到靠近其居里温度时，读出层的稀土金属的亚晶格磁矩和亚晶格磁矩辅助记录层的稀土金属彼此反平行。以及在磁光记录介质上记录信息的方法。该结构能够通过光强度调制而不使用初始化磁场。

22. 发明授权

US5335220A Optical recording element and driving system 失效
标题翻译：光学记录元件和驱动系统
公开(公告)号：US5335220A
公开(公告)日：1994-08-02
申请号：US821361
申请日：1992-01-16
申请人： Kenji Ohta , Tetsuya Inui , Hiroyuki Katayama , Akira Takahashi , Junji Hirokane , Yukinori Nishitani , Michinobu Mieda , Kazuo Van
发明人： Kenji Ohta , Tetsuya Inui , Hiroyuki Katayama , Akira Takahashi , Junji Hirokane , Yukinori Nishitani , Michinobu Mieda , Kazuo Van
IPC分类号： G11B7/0045 , G11B7/013 , G11B7/09 , G11B7/125 , G11B7/24 , G11B7/24085 , G11B11/105 , G11B19/02 , G11B3/78
CPC分类号： G11B7/0045 , G11B11/10528 , G11B11/10578 , G11B11/10595 , G11B19/02 , G11B7/0938 , G11B7/126 , G11B7/24 , G11B7/24085
摘要： An optical recording element comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample pits disposed at intervals of a fixed distance for providing basic information about the locations of the recording units in same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6.degree. to 80.degree. to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed for reducing, erasing and verifying these functions can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.
摘要翻译：一种光记录元件，包括记录介质，该记录介质包括在非连续状态下在每个单元处形成的信息记录区域，所述记录介质还包括以固定距离间隔设置的样品坑，以提供关于记录单元的位置的基本信息在同一轨道。每个采样坑包括靠近记录单元序列设置的多个凹坑，使得凹坑之间的间隔与记录单元之间的间隔不同。多个凹坑中的至少一个是相对于记录轨道以6°至80°的角度倾斜的长尺寸倾斜凹坑。一种驱动系统，用于驱动用于在非连续记录区域中记录信息的光学记录元件，或者用存储在其中的光束擦除信息，该光束的输出根据需要变化，并且检查是否正确地执行了所述记录或擦除光束通过非连续记录区域的非常短的时间。通过与其驱动系统结合使用光学记录元件，可以大大提高用于减少，擦除和验证这些功能的处理速度，并且可以正确地控制每个记录单元处的光束的照射位置。

23. 发明授权

US4917751A Method of producing double sided optical memory disks 失效
标题翻译：双面光存储盘的制造方法
公开(公告)号：US4917751A
公开(公告)日：1990-04-17
申请号：US328743
申请日：1989-03-20
申请人： Kenji Ohta , Hiroyuki Katayama , Akira Takahashi , Yoshiteru Murakami , Junji Hirokane
发明人： Kenji Ohta , Hiroyuki Katayama , Akira Takahashi , Yoshiteru Murakami , Junji Hirokane
IPC分类号： B29C35/08 , B29C70/08 , G11B7/26 , G11B11/105
CPC分类号： G11B7/26 , B29C35/08 , B29C70/086 , B29C2035/0827 , B29L2017/005 , G11B11/10584 , Y10T156/1097 , Y10T156/1098
摘要： Double sided optical memory disks are produced by dropping a viscous adhesive material hardenable by ultraviolet radiation at predetermined longitudinal intervals onto an elongated cloth material of uniform thickness thereby causing the adhesive material to become absorbed by and contained in the cloth material, thereafter placing this cloth material sandwichedly between two optical disk pieces each containing a recording layer, thereafter applying pressure between these pieces such that the sandwiching pieces remain separated uniformly by a predetermined separation distance, and thereafter applying ultraviolet radiation to and thereby hardening the adhesive material while the disk pieces are maintained at the uniform separation distance.
摘要翻译：双面光学记忆盘是通过将能够以预定的纵向间隔使紫外线辐射固化的粘性粘合剂材料滴落到均匀厚度的细长布料上制成的，从而使粘合剂材料被布料吸收并包含在布料中，然后将该布料夹在两个光盘片之间，每个光盘片均包含记录层，然后在这些片之间施加压力，使得夹持片保持均匀分离预定的间隔距离，然后在保持盘片的同时施加紫外线辐射，从而硬化粘合剂材料在均匀分离距离。

24. 发明授权

US4764441A Photo-mask for production of substrate for optical memory element 失效
标题翻译：用于生产光学记忆元件基板的光罩
公开(公告)号：US4764441A
公开(公告)日：1988-08-16
申请号：US930157
申请日：1986-11-12
申请人： Kenji Ohta , Junji Hirokane , Tetsuya Inui , Akira Takahashi , Hiroyuki Katayama
发明人： Kenji Ohta , Junji Hirokane , Tetsuya Inui , Akira Takahashi , Hiroyuki Katayama
IPC分类号： G03F1/00 , G03F1/38 , G03F1/58 , G03F9/00
CPC分类号： G03F1/58 , G03F1/38 , G03F1/50
摘要： A photo-mask which is used for the production of a substrate for an optical memory element includes a reflective film formed over an ultraviolet non-transmissive film on a substrate. Alternatively, a multi-layer dielectric film which is not transmissive to light of wavelength about 400 nm but transmissive to light of wavelength about 450 nm is formed on a substrate.
摘要翻译：用于制造光存储元件用基板的光掩模包括在基板上的紫外线不透光膜上形成的反射膜。或者，在基板上形成不透射波长约400nm但对波长约450nm的光透射的多层电介质膜。

25. 发明授权

US5863649A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5863649A
公开(公告)日：1999-01-26
申请号：US928894
申请日：1997-09-12
申请人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , C09D5/23 , G11B11/105 , G11B5/66 , B32B15/01 , G11B11/00
CPC分类号： G11B11/10504 , G11B11/10515 , G11B11/10586 , G11B11/10595 , G11B11/10589 , Y10T428/26
摘要： In a magneto-optical recording medium including a reading-out layer, which is in an in-plane magnetization state at a room temperature and in a perpendicular magnetization state when the temperature rises, and a recording layer, which is in a perpendicular magnetization state at a room temperature to a Curie point, an intermediate layer having in-plane magnetization component and a lower Curie point than the recording medium is formed between the reading-out layer and the recording layer so as to abruptly change magnetization state of the reading-out layer. Since magnetization state of the reading-out layer is abruptly changed, recording is carried out highdensely. Moreover, since exchange-coupling between the reading-out layer and the recording layer is controlled, a recording characteristic is improved.
摘要翻译：在包括读出层的磁光记录介质中，当温度升高时，其在室温下处于平面内的磁化状态，并且在垂直磁化状态下处于垂直磁化状态的记录层在室温至居里点时，在读出层和记录层之间形成具有面内磁化分量和比记录介质低的居里点的中间层，从而突然改变读出层的磁化状态，外层。由于读出层的磁化状态突然变化，所以高度地进行记录。此外，由于读出层和记录层之间的交换耦合被控制，所以提高了记录特性。

26. 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。

27. 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。

28. 发明授权

US5635977A Optical probe element and a recording and reproduction device using the optical probe element 失效
标题翻译：光探头元件和使用该光探头元件的记录和再现装置
公开(公告)号：US5635977A
公开(公告)日：1997-06-03
申请号：US450501
申请日：1995-05-26
申请人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi
发明人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi
IPC分类号： G02B5/00 , B41J2/455 , B41J2/46 , G01Q60/18 , G01Q60/22 , G01Q80/00 , G02B6/24 , G11B7/135 , G11B7/22 , B41J2/47 , G01D15/34 , G02B26/00 , G02B27/00
CPC分类号： G11B7/1387 , B41J2/45 , B41J2/46 , B82Y20/00 , B82Y35/00 , G01Q60/22 , G11B7/1384 , B82Y10/00 , G02B6/241 , Y10S977/862
摘要： An optical probe element for focusing light from a light source into micro light of a diameter not larger than the diffraction limit, includes a light transmitting flat substrate and an optical probe formed on one of the surfaces of the flat substrate. The optical probe has a substantially conical light transmitting projection, and a reflective film which covers the conical surface of the projection so that the tip of the projection is exposed. The optical probe element enables the optical probe to be formed on the flat substrate using a semiconductor processing technique, thereby achieving efficient mass production of a standardized optical probe element. Thus, a recording and reproduction apparatus using the optical probe element is efficiently mass-produced.
摘要翻译：用于将来自光源的光聚焦到直径不大于衍射极限的微光的光学探针元件包括形成在平坦基板的一个表面上的透光平坦基板和光学探针。光学探头具有基本上圆锥形的透光突起和覆盖突起的锥形表面的反射膜，使得突起的尖端被暴露。光探头元件使得能够使用半导体处理技术在平面基板上形成光学探针，从而实现标准化的光学探测元件的高效批量生产。因此，有效地大量生产使用光学探针元件的记录和再现装置。

29. 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。

30. 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.

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