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81. 发明授权

US5317555A Optical head device utilizing partially overlapping light spots to read information from a readout layer 失效
标题翻译：使用部分重叠的光点从读出层读取信息的光学头装置
公开(公告)号：US5317555A
公开(公告)日：1994-05-31
申请号：US910837
申请日：1992-07-08
申请人： Akira Takahashi , Yoshiteru Murakami , Junsaku Nakajima , Kenji Ohta
发明人： Akira Takahashi , Yoshiteru Murakami , Junsaku Nakajima , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B11/10545 , G11B11/10515
摘要： A magneto-optical disk has a recording layer whereon recorded bits are formed by the magnetic field modulation method and a readout layer whose axis of easy magnetization is parallel to the recording layer at room temperature, and varies to be perpendicular to the recording layer within a predetermined temperature range between room temperature and the Curie temperature. During reproduction of the recorded bits the first semiconductor laser emits a heating-use light beam to form the first light spot on the readout layer Thus, a ring-shaped region corresponding to the predetermined temperature range exhibits perpendicular magnetic anisotropy and the recorded bits are copied from the recording layer onto the ring-shaped region. As the first light spot is shifted, the ring-shaped region as a readout window of recorded bits is also shifted. Further, the second semiconductor laser emits a reproduction-use light beam such that the second light spot is formed on the readout layer to overlap the first light spot at a rear portion thereof. Consequently, only one recorded bit copied onto the rear portion of the ring-shaped region can be reproduced; therefore, high-quality reproduced signals can be obtained from the magneto-optical disk having information recorded with high density.
摘要翻译：磁光盘具有通过磁场调制方法形成记录位的记录层和容易磁化的轴在室温下与记录层平行的读出层，并且在其内变化为垂直于记录层室温和居里温度之间的预定温度范围。在再现记录位期间，第一半导体激光器发出加热用光束，以在读出层上形成第一光点。因此，对应于预定温度范围的环形区域呈现垂直的磁各向异性，并且记录的位被复制从记录层到环形区域。当第一个光点移动时，作为记录位的读出窗口的环形区域也被移位。此外，第二半导体激光器发射再现用光束，使得第二光点形成在读出层上，以在其后部与第一光点重叠。因此，只能再现复制到环形区域后部的一个记录位; 因此，可以从具有以高密度记录的信息的磁光盘获得高质量的再现信号。

82. 发明授权

US5305300A Magneto optical storage device using a multi-layer film of Pt/Co laminated sections 失效
标题翻译：磁光存储器件采用Pt / Co层叠多层薄膜
公开(公告)号：US5305300A
公开(公告)日：1994-04-19
申请号：US888548
申请日：1992-05-22
申请人： Kenji Ohta , Akira Takahashi , Junsaku Nakajima , Yoshiteru Murakami
发明人： Kenji Ohta , Akira Takahashi , Junsaku Nakajima , Yoshiteru Murakami
IPC分类号： G11B11/105 , G11B7/24
CPC分类号： G11B11/10582 , G11B11/10593 , Y10S428/90
摘要： A magneto-optical storage device having a configuration wherein a first AlN film, a Pt/co multi-layer film formed by alternately depositing Pt and Co, a second AlN film, and an Al reflective film are successively laminated on a substrate in this order. Assuming that respectively the thickness of the first AlN film is .delta.AlN (1); that of the second AlN film is .delta.AlN (2); that of the Pt single layer is .delta.Pt; that of the Co single layer is .delta.Co; and the total thickness of the Pt/Co multi-layer film is .delta.Pt/Co, each thickness of those layers is set to range within: 50 nm .ltoreq..delta.AlN (1).ltoreq.200 nm; 120 nm.ltoreq..delta.AlN (2).ltoreq.140 nm; 0.6 nm.ltoreq..delta.Pt.ltoreq.1.0 nm; 0.3 nm.ltoreq..delta.Co.ltoreq.0.6 nm; and 15 nm.ltoreq..delta.Pt/Co.ltoreq.20 nm. In accordance with the above arrangement, it is possible to greatly widen the tolerances of the film thicknesses of the first and second dielectric layers for obtaining a predetermined reflective index as well as a maximum Kerr rotation angle. Consequently, without strictly controlling the film thicknesses of the first and second AlN films, a magneto-optical storage device with stable performance suitable for practical use can be produced easily.
摘要翻译：具有这样一种结构的磁光存储装置，其中第一AlN膜，通过交替沉积Pt和Co形成的Pt / co多层膜，第二AlN膜和Al反射膜依次层叠在基板上。假设第一AlN膜的厚度分别为（Δ）AlN（1）; 第二AlN膜的厚度为（Δ）AlN（2）; Pt单层为（delta）Pt; Co单层为（delta）Co; 并且Pt / Co多层膜的总厚度为（delta）Pt / Co，这些层的每个厚度设定在：50nm <=（delta）AlN（1）<= 200nm的范围内; 120nm <=（delta）AlN（2）<= 140nm; 0.6nm <=（delta）Pt <= 1.0nm; 0.3nm <=（delta）Co <= 0.6nm; 和15nm <=（delta）Pt / Co <= 20nm。根据上述结构，可以大大拓宽第一和第二介质层的膜厚的公差，以获得预定的反射率以及最大的克尔旋转角。因此，在不严格控制第一和第二AlN膜的膜厚的情况下，可以容易地制造出具有适合于实际应用的稳定性能的磁光存储装置。

83. 发明授权

US5202862A Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads 失效
标题翻译：具有整体形成记录和复制磁头的磁光记录和再现装置
公开(公告)号：US5202862A
公开(公告)日：1993-04-13
申请号：US713742
申请日：1991-06-11
申请人： Kenji Ohta , Akira Takahashi , Tetsurou Muramatsu , Tatsushi Yamamoto , Toshio Ishikawa
发明人： Kenji Ohta , Akira Takahashi , Tetsurou Muramatsu , Tatsushi Yamamoto , Toshio Ishikawa
IPC分类号： G11B5/00 , G11B5/127 , G11B5/187 , G11B13/04
CPC分类号： G11B13/045 , G11B5/00 , G11B5/1278 , G11B5/1871 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magneto-optical recording/reproducing device which records information by irradiating a light beam of constant intensity on a magneto-optical recording medium while simultaneously applying a magnetic field thereon through a recording magnetic head; and which reproduces the recorded information through a reproducing magnetic head. The magneto-optical recording medium has a magnetic film formed on a translucent substrate and the magnetic field applied through the recording magnetic head reverses in response to the information to be recorded. The recording magnetic head and the reproducing magnetic head are integrally provided on a single magnetic core in order to set their positions easily with respect to each other. By making a magnetic core end-face of the reproducing magnetic head smaller than a light beam spot, information recorded on areas smaller than the light beam spot can be reproduced. A large reproduced output may be achieved by using a magneto-optical recording medium which has a soft magnetic material layer made of soft magnetic material provided between the substrate and the magnetic film.

84. 发明授权

US5196978A Cartridge case 失效
标题翻译：弹壳
公开(公告)号：US5196978A
公开(公告)日：1993-03-23
申请号：US48768
申请日：1987-05-12
申请人： Junichi Washo , Kenji Ohta , Shigeo Terashima , Masahiro Horii , Takao Hyuga , Toshihisa Deguchi
发明人： Junichi Washo , Kenji Ohta , Shigeo Terashima , Masahiro Horii , Takao Hyuga , Toshihisa Deguchi
IPC分类号： G11B23/03
CPC分类号： G11B23/0308 , G11B23/0302
摘要： A cartridge case for containing a disk-shaped recording medium has a shutter attached slidably thereon. The shutter is U-shaped sectionally and the edge sections where the shutter contacts the surface of the cartridge case are rounded so that friction therebetween is reduced when the shutter slides on the surface of the cartridge case. The cartridge case is provided with a notch and an indentation on at least one of its side surfaces corresponding to protruding pieces in the device into which the cartridge case is inserted such that a sensor in the device can be activated only when a cartridge case compatible with the device is inserted and these protruding pieces properly engage with the notch and the indentation on the cartridge case.
摘要翻译：用于容纳盘形记录介质的盒壳具有可滑动地附接在其上的挡板。快门是U形截面的，并且快门接触盒壳体的表面的边缘部分是圆形的，使得当快门在盒壳体的表面上滑动时，其间的摩擦力减小。盒壳在其至少一个侧表面上的至少一个侧表面上设有凹口和凹槽，该凹槽和凹槽对应于插入盒壳体的装置中的突出件，使得只有在与盒壳体兼容的盒壳体中才能激活装置中的传感器该装置被插入，并且这些突出部件与卡盘盒上的凹口和凹口适当接合。

85. 发明授权

US5112727A Method of and photomask for manufacturing optical memory element 失效
标题翻译：用于制造光学记忆元件的光电子学方法
公开(公告)号：US5112727A
公开(公告)日：1992-05-12
申请号：US527265
申请日：1990-05-23
申请人： Tetsuya Inui , Junji Hirokane , Akira Shibata , Yoshiyuki Nagahara , Kenji Ohta
发明人： Tetsuya Inui , Junji Hirokane , Akira Shibata , Yoshiyuki Nagahara , Kenji Ohta
IPC分类号： G11B7/26
CPC分类号： G11B7/261 , Y10S428/913
摘要： A method of and a photomask for manufacturing an optical memory element. The manufacturing method includes the steps of: subjecting a positive type photoresist coated on a glass substrate to exposure by using the photomask capable of irradiating light onto a portion of the photoresist other than the remaining portion for forming pits of the glass substrate such that the portion of the photoresist is solubilized against developing solution; developing the photoresist by using the developing solution so as to remove the portion of the photoresist; and etching the glass substrate so as to directly form, as convex portions, the pits on a surface of the glass substrate.

86. 发明授权

US5107486A Optical memory device with grooves and pits in selected dimensional relationship 失效
标题翻译：具有选定尺寸关系的凹槽和凹坑的光学存储器件
公开(公告)号：US5107486A
公开(公告)日：1992-04-21
申请号：US497099
申请日：1990-03-21
申请人： Tetsuya Inui , Junji Hirokane , Toshihisa Deguchi , Kenji Ohta
发明人： Tetsuya Inui , Junji Hirokane , Toshihisa Deguchi , Kenji Ohta
IPC分类号： G11B7/007 , G11B7/013 , G11B7/09
CPC分类号： G11B7/24085 , G11B7/0938 , G11B7/24079
摘要： An optical memory device has grooves for guiding a light spot and pits for serving as track number indicators. The width W.sub.1 and depth d.sub.1 of the grooves and the width W.sub.2 and depth d.sub.2 of the pits are so selected that 2D(W.sub.1, d.sub.1)=1+D(W.sub.2, d.sub.2) where D(W.sub.1, d.sub.1) and D(W.sub.2, d.sub.2) are respectively the reflectivity of the groove and the pit.
摘要翻译：光学存储器件具有用于引导光点和凹坑的凹槽，用作轨道数指示器。凹槽的宽度W1和深度d1以及凹坑的宽度W2和深度d2被选择为2D（W1，d1）= 1 + D（W2，d2）其中D（W1，d1）和D（W2， d2）分别是凹槽和凹坑的反射率。

87. 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.

88. 发明授权

US5083301A Optical card recording and reproducing device 失效
标题翻译：光卡记录和再现设备
公开(公告)号：US5083301A
公开(公告)日：1992-01-21
申请号：US347712
申请日：1989-05-05
申请人： Hirotsugu Matoba , Shigemi Maeda , Kenji Ohta , Shozo Kobayashi
发明人： Hirotsugu Matoba , Shigemi Maeda , Kenji Ohta , Shozo Kobayashi
IPC分类号： G11B7/0033 , G11B7/085
CPC分类号： G11B7/08505 , G11B7/0033 , G11B7/08588
摘要： An optical card recording and reproducing device including an optical head for emitting a light beam spot to the optical card having a plurality of parallel data tracks to which data is recorded; a transfer system for transferring the optical card and/or the optical head; and a track number confirmation means for confirming the track number recorded in the address data area in the data track of the optical card. The optical card recording and reproducing device also includes a transfer stopping means for stopping the optical head when an incorrect track number is deleted. The system minimizes the relative transfer distance between the optical card and the optical head, and at the same time, the total relative transfer distance of the optical card and/or the optical head when confirming the track number more than twice. Thus, the total time required for track number confirmation can be greatly shortened.
摘要翻译：一种光卡记录和再现装置，包括用于向光卡发射光束点的光学头，该光卡具有数据被记录在其上的多个并行数据轨道; 用于传送光卡和/或光头的传送系统; 以及轨道号确认装置，用于确认记录在光卡的数据轨道中的地址数据区中的轨道号。光卡记录和再现装置还包括一个传送停止装置，用于当不正确的磁道号被删除时停止光头。该系统使光卡和光学头之间的相对传送距离最小化，同时，在确认轨道号超过两次时，光卡和/或光学头的总相对传送距离。因此，可以大大缩短轨道号确认所需的总时间。

89. 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.

90. 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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