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1. 发明授权

US5105400A Method of magneto-optically recording and erasing information onto a magneto-optical information storage medium 失效
标题翻译：磁光记录方法和磁信息存储介质的擦除信息
公开(公告)号：US5105400A
公开(公告)日：1992-04-14
申请号：US370764
申请日：1989-06-23
申请人： Akira Kikitsu , Katsutarou Ichihara , Sumio Ashida
发明人： Akira Kikitsu , Katsutarou Ichihara , Sumio Ashida
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/10521 , G11B11/10586
摘要： A method of magneto-optically recording and erasing information which comprises irradiating pulse-like laser beam onto a magneto-optical information storage medium including recording and bias layers which has perpendicular magnetic anisotropy and which are stacked one upon the other to apply coupling interaction which is mainly magnetostatic interaction to each other, and magnetization-reversing temperature of the bias layer being higher than that of the recording layer. When the recording laser beam is irradiated onto the medium, the beam-irradiated portion of the medium is heated to form a reversed magnetic domain in the bias layer, magnetization of the recording layer is reversed by first leakage magnetic field applied to the recording layer when beam-irradiated portion is then cooled, and magnetization of the bias layer is directed in same direction as that under initial state by second leakage magnetic field, applied to the bias layer. When the erasing layer beam is irradiated onto the medium, the beam-irradiated portion of the medium is heated to the magnetization-reversing temperature of the recording layer, and due to third leakage magnetic field applied to the recording layer at this time, the direction of magnetization of the recording layer is re-reversed.

2. 发明授权

US5175714A Method of magneto-optically recording/erasing information and magneto-optical information storage medium including recording and bias layers satisfying certain conditions 失效
标题翻译：磁光记录/擦除信息和磁光信息存储介质的方法，包括记录和偏移层满足某些条件
公开(公告)号：US5175714A
公开(公告)日：1992-12-29
申请号：US413485
申请日：1989-09-27
申请人： Akira Kikitsu , Katsutarou Ichihara , Sumio Ashida
发明人： Akira Kikitsu , Katsutarou Ichihara , Sumio Ashida
IPC分类号： G11B11/105
CPC分类号： G11B11/10586 , G11B11/10506 , G11B11/10521
摘要： A magneto-optical recording medium including a recording layer and a bias layer being stacked one upon the other to apply coupling interaction which is mainly magnetostatic interaction to each other, the bias layer having a magnetization-reversing temperature higher than that of the recording layer. The medium is irradiated with laser beam pulses having a recording level and an erasing level lower than the recording level, thereby recording and erasing the information. When the medium is irradiated with the laser beam pulse having the recording level and the irradiated region is cooled to the magnetization reversing temperature T.sub.rR, the magnetization of the beam-irradiated region of the recording layer is aligned with a direction of the leakage magnetic field leaking from the recording layer. When the medium is irradiated with the laser beam pulse having the erase level and the irradiated region is cooled to T.sub.rR, direction of magnetization of the beam-irradiated region of the recording layer is aligned with a direction of the leakage magnetic field applied from the bias layer to the recording layer.

3. 发明授权

US4954841A Optical recording medium and method of manufacturing the same 失效
标题翻译：光记录介质及其制造方法
公开(公告)号：US4954841A
公开(公告)日：1990-09-04
申请号：US111067
申请日：1987-10-22
申请人： Katsutarou Ichihara , Norio Ozawa , Nobuaki Yasuda
发明人： Katsutarou Ichihara , Norio Ozawa , Nobuaki Yasuda
IPC分类号： B41M5/26 , G11B7/24 , G11B7/241 , G11B7/254 , G11B7/256 , G11B7/257 , G11B7/26 , G11B11/10 , G11B11/105
CPC分类号： G11B7/24
摘要： An optical recording medium and methods of manufacturing the same are disclosed. The optical recording medium is provided with a transparent adhesive layer containing organic compounds such as hydrocarbon or the like that constitute resin materials, and metallic compounds whose thermal expansion coefficients are nearly equal to those of inorganic transparent materials that constitute a transparent protective layer, whereby peel-off phenomena to be caused by secular variation can be avoided.
摘要翻译：公开了一种光记录介质及其制造方法。光记录介质设置有含有构成树脂材料的烃等有机化合物的透明粘合剂层，其热膨胀系数几乎等于构成透明保护层的无机透明材料的金属化合物，由此剥离可以避免由长期变化引起的现象。

4. 发明授权

US4634635A Black ornament 失效
标题翻译：黑色装饰品
公开(公告)号：US4634635A
公开(公告)日：1987-01-06
申请号：US655223
申请日：1984-09-27
申请人： Yasuhisa Shiraishi , Takashi Fujita , Yoshiharu Ochi , Masahiko Hirose , Katsutarou Ichihara , Takashi Ishigami
发明人： Yasuhisa Shiraishi , Takashi Fujita , Yoshiharu Ochi , Masahiko Hirose , Katsutarou Ichihara , Takashi Ishigami
IPC分类号： B44C1/04 , B44C1/00 , B44F1/08 , C23C16/32 , G02C5/00 , G04B37/22 , B32B13/04
CPC分类号： B44F1/08 , C23C16/325 , G04B37/221
摘要： An ornament coated with silicon carbide having black luster which has been formed by chemical vapor deposition aided by D.C. glow discharge using hydrogen, a silicon compound and a hydrocarbon.The black ornament according to the present invention is very suitable for a case of a watch, a frame of eyeglasses and so on.
摘要翻译：通过化学气相沉积形成的具有黑色光泽的碳化硅的装饰物，其通过使用氢，硅化合物和烃的直流辉光放电辅助形成。根据本发明的黑色装饰品非常适用于手表，眼镜架等的情况。

5. 发明授权

US5187694A Magneto-optical recording medium comprising recording layer and thermal bias layer, and method for recording, erasing and overwriting on the medium 失效
标题翻译：包括记录层和热偏置层的磁光记录介质以及在介质上记录，擦除和重写的方法
公开(公告)号：US5187694A
公开(公告)日：1993-02-16
申请号：US885014
申请日：1992-05-19
申请人： Katsutarou Ichihara , Hiromichi Kobori
发明人： Katsutarou Ichihara , Hiromichi Kobori
IPC分类号： G11B11/105
CPC分类号： G11B11/10517 , G11B11/10504 , G11B11/10586
摘要： A magneto-optical information storage medium includes a substrate, a recording layer formed on the substrate and having an axis of easy magnetization extending in the direction perpendicular to its surface, a nonmagnetic layer formed on the recording layer, and a bias layer, formed on the nonmagnetic layer, for generating bias magnetic field H.sub.B (T) in accordance with a temperature. The magnetization of the recording layer is reversed by bias magnetic field H.sub.B (T) in first and second magnetization reversal temperature regions T.sub.W and T.sub.E (T.sub.W >T.sub.E). Information is recorded on such a magneto-optical information storage medium by radiating a first laser beam having a first power level for heating an irradiated portion to a temperature in region T.sub.W. In addition, information erasing is performed by radiating a second laser beam having a second power level which is lower than the first power level and heats an irradiated portion to a temperature in region T.sub.E. Overwrite is performed by power-modulating between the first and second power levels and radiating the modulated laser beam onto a previously recorded area of the medium.
摘要翻译：磁光信息存储介质包括基板，形成在基板上的记录层，其具有在垂直于其表面的方向上易于磁化的轴线，形成在记录层上的非磁性层，以及偏置层，形成在非磁性层，用于根据温度产生偏置磁场HB（T）。在第一和第二磁化反转温度区域TW和TE（TW> TE）中，记录层的磁化被偏置磁场HB（T）反转。通过将具有第一功率电平的第一激光束照射到区域TW中的温度，将信息记录在这种磁光信息存储介质上。此外，通过照射具有低于第一功率电平的第二功率电平的第二激光束并将照射部分加热到区域TE中的温度来执行信息擦除。通过在第一和第二功率电平之间的功率调制执行覆盖，并将调制的激光束辐射到介质的先前记录的区域上。

6. 发明授权

US4666759A Data recording medium 失效
标题翻译：数据记录介质
公开(公告)号：US4666759A
公开(公告)日：1987-05-19
申请号：US746728
申请日：1985-06-20
申请人： Hideki Ohkawa , Katsutarou Ichihara , Yoshiaki Terashima , Nobuaki Yasuda
发明人： Hideki Ohkawa , Katsutarou Ichihara , Yoshiaki Terashima , Nobuaki Yasuda
IPC分类号： G11B5/72 , G11B7/24
CPC分类号： G11B5/72 , Y10S428/90 , Y10T428/2495 , Y10T428/24967 , Y10T428/26 , Y10T428/265
摘要： A data recording medium comprising, as a recording layer, a thin magnetic alloy film having an axis of easy magnetization along a direction perpendicular to the surface thereof, and an anticorrosion protective layer formed on the recording layer. This recording medium is featured in that the anticorrosion protective layer is formed of a thin oxide film which is obtained by subjecting the surface portion of the recording layer to an anodic oxidization. This protective layer may be further covered with a dielectric film as a second protective covering.
摘要翻译：一种数据记录介质，包括作为记录层的沿着垂直于其表面的方向具有易磁化轴的薄磁合金膜，以及形成在记录层上的防腐蚀保护层。该记录介质的特征在于防腐保护层由通过使记录层的表面部分进行阳极氧化而获得的薄氧化膜形成。该保护层可以进一步被作为第二保护覆盖物的电介质膜覆盖。

7. 发明授权

US4701880A Optical system for recording/reproducing information by means of a dielectric breakdown effected by photoswitching of a bias-voltage 失效
标题翻译：用于通过偏置电压的光电开关实现的介质击穿来记录/再现信息的光学系统
公开(公告)号：US4701880A
公开(公告)日：1987-10-20
申请号：US731360
申请日：1985-05-07
申请人： Katsutarou Ichihara
发明人： Katsutarou Ichihara
IPC分类号： B41M5/26 , G11B7/00 , G11B7/004 , G11B7/135 , G11B7/1362 , G11B7/24 , G11B11/00 , G11B13/00 , G11C13/00 , G11C11/42 , G11B11/18
CPC分类号： G11B7/1362 , G11B13/00 , G11B7/004 , G11B7/24
摘要： An optical information recording/reproducing system comprises (A) a recording medium including a recording-bit producing layer, which is comprised of a fluorescent substance, and a photoconductive layer, both layers being interposed between conductive layers, at least one of which is transparent; (B) means for selectively applying a voltage to both sides of the recording medium; (C) means for radiating an optical recording beam to a site on the recording medium while applying a voltage to the recording medium and, then, applying a high electric field to the recording-bit producing layer by way of the photoconductive layer, the resistance of the recording-bit producing layer being lowered at the site, thereby developing a dielectric breakdown and, hence, causing the fluorescent substance to lose the fluorescence, so that information is recorded; and (D) means for radiating an optical reproducing beam on the recording medium without applying any voltage to the recording medium and, then, reproducing information depending on whether fluorescence has been produced. The system is characterized by an improved S/N ratio upon reproduction and an increment to the storage capacity.
摘要翻译：光信息记录/再现系统包括（A）包括由荧光物质构成的记录位产生层和光电导层的记录介质，两层介于导电层之间，其中至少一层是透明的 ; （B）用于选择性地向记录介质的两侧施加电压的装置; （C）用于将光记录光束照射到记录介质上的位置同时向记录介质施加电压，然后通过光电导层向记录位产生层施加高电场的装置，电阻的记录位产生层在现场降低，从而发展出介质击穿，并因此导致荧光物质失去荧光，从而记录信息; 和（D）用于在记录介质上辐射光学再现光束而不向记录介质施加任何电压的装置，然后根据是否产生荧光再现信息。该系统的特征在于再现时改善的S / N比和对存储容量的增加。

8. 发明授权

US4922462A Reversible memory structure for optical reading and writing and which is capable of erasure 失效
标题翻译：用于光学读写的可逆存储器结构，能够擦除
公开(公告)号：US4922462A
公开(公告)日：1990-05-01
申请号：US270445
申请日：1988-11-09
申请人： Sumio Ikegawa , Yoshiaki Terashima , Nobuaki Yasuda , Katsutarou Ichihara , Shuichi Komatsu , Shinji Arai
发明人： Sumio Ikegawa , Yoshiaki Terashima , Nobuaki Yasuda , Katsutarou Ichihara , Shuichi Komatsu , Shinji Arai
IPC分类号： G11B5/00 , G11B7/0055 , G11B7/243 , G11B11/00 , G11B11/06 , G11B11/105 , G11B11/18 , G11B11/20
CPC分类号： G11B7/00454 , G11B11/105 , G11B11/18 , G11B11/20 , G11B5/00 , G11B7/243 , G11B2007/24306 , G11B2007/24308 , G11B2007/2431
摘要： In a reversible memory system, a pulsed laser beam generated from a laser unit is directed to a recording layer formed on a substrate 1. The recording layer essentially consists of a recording medium, for example, an iron-nickel alloy containing iron as a major component and 27 to 30 atomic % of nickel, which undergoes martensite transformation from a low-temperature phase to a high-temperature phase at a predetermined temperature Af and which undergoes a stress-induced transformation at a characteristic temperature Md. When a region of the recording layer is irradiated with the laser beam having a predetermined intensity, the region undergoes a stress-induced transformation so that the region is changed from the high temperature phase to the low temperature phase.
摘要翻译：在可逆存储器系统中，从激光单元产生的脉冲激光束被引导到形成在基板1上的记录层。记录层基本上由记录介质，例如含铁作为主要的铁镍合金成分和27〜30原子％的镍，其在预定温度Af下经历从低温相向高温相的马氏体转变，并且在特征温度Md下经受应力诱导相变，当用具有预定强度的激光束照射记录层，该区域进行应力诱导变换，使得该区域从高温相变为低温相。

9. 发明授权

US4832980A Magneto-optical recording medium and manufacturing thereof 失效
标题翻译：磁光记录介质及其制造
公开(公告)号：US4832980A
公开(公告)日：1989-05-23
申请号：US90395
申请日：1987-08-27
申请人： Katsutarou Ichihara , Nobuaki Yasuda , Yoshiaki Terashima , Senji Shimanuki
发明人： Katsutarou Ichihara , Nobuaki Yasuda , Yoshiaki Terashima , Senji Shimanuki
IPC分类号： G11B11/10 , G11B7/26 , G11B11/105 , G11C13/06 , H01F41/18
CPC分类号： H01F41/18 , G11B11/10589 , Y10S428/90
摘要： According to a disk-shaped magneto-optical recording medium of the invention, a transparent thin film serving as an interference layer is formed on a transparent substrate. The thin film is subjected to a plasma surface treatment, thereby decreasing the fused oxygen content in at least a surface portion thereof. A recording layer of a rare-earth-transition metal amorphous ferrimagnetic alloy thin film is formed on the plasma surface-treated film. Since the content of active, fused oxygen contained in at least the surface portion of the film decreases, rare-earth element oxide can hardly be formed in a boundary region between the recording layer and the transparent thin film. The content of the rare-earth element in this region is smaller than the average content in the overall recording layer.
摘要翻译：根据本发明的盘状磁光记录介质，在透明基板上形成用作干涉层的透明薄膜。对薄膜进行等离子体表面处理，从而降低其至少表面部分中的熔融氧含量。在等离子体表面处理膜上形成稀土 - 过渡金属非晶铁磁性合金薄膜的记录层。由于至少含有表面部分的活性的熔融氧含量降低，难以在记录层和透明薄膜之间的边界区域形成稀土元素氧化物。该区域中的稀土元素的含量小于整个记录层的平均含量。

10. 发明授权

US4782477A Optical recording medium with fluorine resin adhesive 失效
标题翻译：带有氟树脂粘合剂的光记录介质
公开(公告)号：US4782477A
公开(公告)日：1988-11-01
申请号：US903487
申请日：1986-09-04
申请人： Katsutarou Ichihara , Yoshiaki Terashima , Nobuaki Yasuda , Akio Hori
发明人： Katsutarou Ichihara , Yoshiaki Terashima , Nobuaki Yasuda , Akio Hori
IPC分类号： G11B7/24 , G11B11/105 , G11B11/12
CPC分类号： G11B11/10582 , G11B7/24 , Y10S430/146
摘要： A magneto-optical recording disk has a transparent resinous substrate with a pre-groove, and a metallic recording layer formed above the substrate. A transparent adhesive layer is provided between the substrate and the recording layer, for allowing a laser beam to pass therethrough, and for causing the recording layer to be tightly adhered to the substrate to thereby prevent the recording layer from being peeled off from the substrate. The adhesive layer is comprised of a fluorine resin material.
摘要翻译：磁光记录盘具有带有预凹槽的透明树脂基底和形成在基底上的金属记录层。在基板和记录层之间设置透明粘合剂层，用于允许激光束通过，并且使记录层紧密地粘附到基板上，从而防止记录层从基板剥离。粘合剂层由氟树脂材料构成。

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