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31. 发明授权

US5985436A Magneto-optical recording medium, magneto-optical recording method, and magneto-optical recording apparatus 失效
标题翻译：磁光记录介质，磁光记录方法和磁光记录装置
公开(公告)号：US5985436A
公开(公告)日：1999-11-16
申请号：US935395
申请日：1997-09-23
申请人： Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
发明人： Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10508 , G11B11/10591 , G11B11/10593 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium including at least a recording layer, and an auxiliary recording layer which achieves magnetostatic coupling with the recording layer. The auxiliary recording layer is in an in-plane magnetization state at temperatures lower than a recording temperature, and in a perpendicular magnetization state at temperatures not lower than the recording temperature. It is therefore possible to achieve a decrease in a recording magnetic field.
摘要翻译：至少包括记录层的磁光记录介质和与记录层实现静磁耦合的辅助记录层。辅助记录层在低于记录温度的温度下处于平面内磁化状态，并且在不低于记录温度的温度下处于垂直磁化状态。因此，可以实现记录磁场的减小。

32. 发明授权

US5982409A Optical probe element, and a recording and reproduction device using the optical probe element 失效
标题翻译：光学探针元件，以及使用光学探针元件的记录和再现装置
公开(公告)号：US5982409A
公开(公告)日：1999-11-09
申请号：US789020
申请日：1997-01-27
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
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。

33. 发明授权

US5933411A Optical recording medium having a wobbling section for recording address information and methods of recording and reproduction using same 失效
标题翻译：具有用于记录地址信息的摆动部分和使用其的记录和再现方法的光学记录介质
公开(公告)号：US5933411A
公开(公告)日：1999-08-03
申请号：US890401
申请日：1997-07-09
申请人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
发明人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/26 , G11B11/105
CPC分类号： G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0901 , G11B7/261 , G11B11/10578 , G11B11/10582 , G11B7/0938 , G11B7/24
摘要： An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address information is recorded. Besides, the address recording sections thus provided in the grooves are linearly disposed in radial directions of the optical disk. By thus arranging the optical disk on whose grooves and/or lands information is recorded, mixing of wobble frequency components in reproduced information signals does not occur, the sector method is applicable to the optical disk, and information signals of high quality can be obtained.
摘要翻译：光盘具有地址记录部分，每个地址记录部分具有凹槽的一个侧壁的摆动部分。每个地址记录部分通过在相邻的凸台中提供凹槽的凸起来形成，以便加宽凹槽。由于以这样提供的摆动形式为凹凸形式，所以记录地址信息。此外，这样设置在凹槽中的地址记录部分在光盘的径向上线性地设置。通过这样布置记录有槽和/或焊盘信息的光盘，不会发生重放信息信号中的摆动频率分量的混合，扇区方法可应用于光盘，并且可以获得高质量的信息信号。

34. 发明授权

US5825723A Magneto-optical recording medium having a reproducing layer with different magnetization directions in different temperature ranges 失效
标题翻译：具有在不同温度范围内具有不同磁化方向的再现层的磁光记录介质
公开(公告)号：US5825723A
公开(公告)日：1998-10-20
申请号：US685534
申请日：1996-07-24
申请人： Junji Hirokane , Junichiro Nakayama , Akira Takahashi
发明人： Junji Hirokane , Junichiro Nakayama , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10586
摘要： A non-magnetic intermediate layer for intercepting magnetic exchange interaction is provided between a recording layer and a reproducing layer which are composed of a magnetic thin film with perpendicular magnetization. At this time, the reproducing layer is formed so that when an external magnetic field is applied thereto in reproducing information, its magnetization direction is arranged in the direction of the external magnetic field in a first temperature range, and when a light beam for reproduction is projected thereto and the reproducing layer is in a second temperature, the magnetization direction is arranged in the direction of a leakage magnetic flux generated from the recording layer, and is again arranged in the direction of the external magnetic field in a third temperature range. As a result, a rise and a fall of a reproducing signal detected from the reproducing layer can be made sharp, thereby achieving recording and reproducing at high density.
摘要翻译：在由具有垂直磁化的磁性薄膜组成的记录层和再现层之间提供用于截取磁交换相互作用的非磁性中间层。此时，再现层形成为当再现信息中施加外部磁场时，其磁化方向在第一温度范围内沿外部磁场的方向排列，并且当用于再现的光束为投影到其上并且再现层处于第二温度，磁化方向被布置在从记录层产生的泄漏磁通的方向上，并且在第三温度范围内再次设置在外部磁场的方向上。结果，可以使从再现层检测到的再现信号的上升和下降变得尖锐，从而实现高密度的记录和再现。

35. 发明授权

US5768218A Magneto-optical recording medium having a plurality of magnetic layers 失效
标题翻译：具有多个磁性层的磁光记录介质
公开(公告)号：US5768218A
公开(公告)日：1998-06-16
申请号：US803274
申请日：1997-02-20
申请人： Junichiro Nakayama , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
发明人： Junichiro Nakayama , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10584 , G11B11/10586 , G11B11/10506 , G11B11/10515 , G11B11/10521
摘要： A magneto-optical recording medium has a transparent substrate, a first magnetic layer, first intermediate layer, a second magnetic layer, and a third magnetic layer provided in this order. The first magnetic layer has an in-plane magnetization at room temperature, while a transition from the in-plane magnetization to a perpendicular magnetization occurs to the first magnetic layer with a temperature rise. The first intermediate layer is made of a non-magnetic substance. The second magnetic layer is a film having a perpendicular magnetization. The third magnetic layer is a film having a perpendicular magnetization, has a coercive force smaller than that of the second magnetic layer at room temperature, and has a Curie temperature higher than that of the second magnetic layer. The light intensity modulation overwriting method is applicable to the magneto-optical recording medium thus arranged, superior reproduction signal characteristics can be obtained with respect to this magneto-optical recording medium, and reproduction can be carried out with respect to the recording medium even though it has recording bits whose each diameter is smaller than that of a light beam. Thus it is possible to provide the magneto-optical recording medium suitable for high density recording.
摘要翻译：磁光记录介质具有依次设置的透明基板，第一磁性层，第一中间层，第二磁性层和第三磁性层。第一磁性层在室温下具有平面内的磁化强度，而从第一磁性层的温度上升发生从面内磁化向垂直磁化的转变。第一中间层由非磁性物质制成。第二磁性层是具有垂直磁化强度的膜。第三磁性层是具有垂直磁化的膜，在室温下的矫顽力小于第二磁性层的矫顽力，并且居里温度高于第二磁性层的居里温度。光强度调制重写方法适用于如此布置的磁光记录介质，可以获得相对于该磁光记录介质的优良再现信号特性，并且可以相对于记录介质进行再现，即使它具有每个直径小于光束直径的记录位。因此，可以提供适合于高密度记录的磁光记录介质。

36. 发明授权

US5757734A Magneto-optical recording medium and method for reproducing from same 失效
标题翻译：磁光记录介质及其再现方法
公开(公告)号：US5757734A
公开(公告)日：1998-05-26
申请号：US668429
申请日：1996-06-17
申请人： Junsaku Nakajima , Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
发明人： Junsaku Nakajima , Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00 , G11B5/66
CPC分类号： G11B11/10586 , G11B11/10515
摘要： A magneto-optical recording medium is composed of a reproducing layer, a recording layer, and an initializing layer, which are laminated in this order. The reproducing layer is provided so that a light beam is projected thereon so as to reproduce information. The recording layer is provided so that information is recorded therein and the information is copied to the reproducing layer at a readout temperature. The initializing layer is provided so that the reproducing layer is initialized at room temperature. Non-magnetic layers are provided between the reproducing layer and the recording layer and between the recording layer and the initializing layer, respectively, so that such two layers are not exchange-coupled each other. The recording layer has a compensation temperature of room temperature, while the initializing layer has a compensation temperature of the readout temperature, which is achieved by temperature rise caused by the projection of the light beam. With such an arrangement, an external magnetic field for initializing the reproducing layer and an external magnetic field for reproduction-use can be omitted, thereby preventing a recording device from becoming large in size, as well as enhancing the recording density of the recording layer.
摘要翻译：磁光记录介质由再现层，记录层和初始化层组成，按顺序层叠。提供再现层，使得光束在其上投影以再现信息。提供记录层，使得信息被记录在其中，并且在读出温度下将信息复制到再现层。提供初始化层，使得再现层在室温下被初始化。在再现层和记录层之间以及记录层和初始化层之间分别设置非磁性层，使得这两层不相互交换。记录层具有室温的补偿温度，而初始化层具有通过由光束的投影引起的温度上升而实现的读出温度的补偿温度。通过这样的布置，可以省略用于初始化再现层的外部磁场和用于再现用途的外部磁场，从而防止记录装置尺寸变大，以及提高记录层的记录密度。

37. 发明授权

US5738765A Magneto-optic memory device 失效
标题翻译：磁光存储器件
公开(公告)号：US5738765A
公开(公告)日：1998-04-14
申请号：US443760
申请日：1995-05-18
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
IPC分类号： C23C14/06 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B11/105 , C23C14/00
CPC分类号： G11B11/10591 , C23C14/0617 , C23C14/0652 , G11B11/10584 , G11B11/10586 , G11B7/243 , G11B7/257 , G11B7/258 , G11B2007/24306 , G11B2007/24308 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432 , G11B2007/24328 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25718 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2585 , G11B7/259 , G11B7/2595 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optic memory device includes a transparent dielectric film of a non-oxygen containing nitride material deposited by sputtering on a substrate such as glass, a rare-earth/transition metal alloy recording medium deposited by sputtering on the dielectric film and a reflecting film deposited over the recording medium with or without an intervening transparent dielectric film of non-oxygen containing nitride material. This arrangement prevents the recording medium from being oxidized, and stablizes coercive force characteristics and information recording characteristics of the recording medium.
摘要翻译：磁光存储器件包括通过溅射沉积在诸如玻璃的基底上的非含氮氮化物材料的透明电介质膜，通过溅射沉积在电介质膜上的稀土/过渡金属合金记录介质和反射膜沉积在具有或不具有非含氮氮化物材料的中间透明电介质膜的记录介质上。这种布置防止记录介质被氧化，并且稳定记录介质的矫顽力特性和信息记录特性。

38. 发明授权

US5714251A Magneto-optic memory device 失效
标题翻译：磁光存储器件
公开(公告)号：US5714251A
公开(公告)日：1998-02-03
申请号：US450219
申请日：1995-05-25
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
IPC分类号： C23C14/06 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10591 , C23C14/0617 , C23C14/0652 , G11B11/10584 , G11B11/10586 , G11B7/243 , G11B7/257 , G11B7/258 , G11B2007/24306 , G11B2007/24308 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432 , G11B2007/24328 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25718 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2585 , G11B7/259 , G11B7/2595 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optic memory device which comprises a recording medium deposited by sputtering on a substrate such as glass, a transparent dielectric film formed on the recording medium, and a reflecting film deposited on the transparent dielectric film. This arrangement prevents the recording medium from being oxidized, and stabilizes coercive force characteristics and information recording characteristics of the recording medium.
摘要翻译：一种磁光存储器件，包括通过溅射沉积在诸如玻璃的基板上的记录介质，形成在记录介质上的透明电介质膜和沉积在透明电介质膜上的反射膜。这种布置防止记录介质被氧化，并且稳定记录介质的矫顽力特性和信息记录特性。

39. 发明授权

US5683803A Magneto-optical recording medium and method of recording and reproducing using the same 失效
标题翻译：磁光记录介质及使用其的记录和再现方法
公开(公告)号：US5683803A
公开(公告)日：1997-11-04
申请号：US433088
申请日：1995-05-03
申请人： Junichiro Nakayama , Michinobu Mieda , Junji Hirokane , Akira Takahashi , Kenji Ohta
发明人： Junichiro Nakayama , Michinobu Mieda , Junji Hirokane , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66 , B32B5/16
CPC分类号： G11B11/10586 , G11B11/10506 , G11B11/10515 , G11B11/10523 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium includes a first magnetic layer and a second magnetic layer being laminated. When information is to be recorded on the first magnetic layer, first, a magnetization direction in the second magnetic layer is arranged in one direction with an application of an initialization magnetic field. Then, an intensity modulated light beam is projected while applying thereto a recording magnetic field so as to change the magnetization direction in the second magnetic layer. Thereafter, the magnetization direction in the second magnetic layer is copied to the first magnetic layer, thereby recording information. The first magnetic layer has a magnetization in an intermediate direction between a perpendicular direction and an in-plane direction at room temperature, while has a perpendicular magnetization at above a predetermined temperature. Therefore, a smaller exchange coupling force is exerted from the first magnetic layer to the second magnetic layer at room temperature, thereby enabling a rewriting information with a smaller initialization magnetic field compared with the conventional method, thereby achieving a reduction in size of the apparatus and power conservation.
摘要翻译：磁光记录介质包括层叠的第一磁性层和第二磁性层。当要在第一磁性层上记录信息时，首先，通过施加初始化磁场，将第二磁性层中的磁化方向布置在一个方向上。然后，施加强度调制光束，同时向其施加记录磁场，以改变第二磁性层中的磁化方向。此后，将第二磁性层中的磁化方向复制到第一磁性层，从而记录信息。第一磁性层在室温下具有在垂直方向和面内方向之间的中间方向上的磁化强度，同时具有高于预定温度的垂直磁化强度。因此，与常规方法相比，在室温下从第一磁性层向第二磁性层施加较小的交换耦合力，从而能够实现与常规方法相比具有较小初始化磁场的重写信息，从而实现装置的尺寸减小省电。

40. 发明授权

US5673250A Optical recording medium having pit rows on every other boundary and reproducing method thereof 失效
标题翻译：在每隔一个边界具有凹坑排的光记录介质及其再现方法
公开(公告)号：US5673250A
公开(公告)日：1997-09-30
申请号：US468776
申请日：1995-06-06
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/再现轨道进行扫描时，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。

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