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71. 发明授权

US5581397A Optical-fiber amplifier 失效
标题翻译：光纤放大器
公开(公告)号：US5581397A
公开(公告)日：1996-12-03
申请号：US609893
申请日：1996-03-04
申请人： Takanori Maki , Kenji Ohta
发明人： Takanori Maki , Kenji Ohta
IPC分类号： H01S3/07 , H01S3/06 , H01S3/094 , H01S3/10 , H01S3/00
CPC分类号： H01S3/094003 , H01S3/09408 , H01S5/06825 , H01S5/4012
摘要： Pumping light from two pumping light sources is supplied to an optical coupler which splits it into two output beams and supplies the beams to erbium-doped optical fibers in the forward and backward paths, respectively. To avoid the detrimental effect caused by interference that occurs when the wavelengths of the two pumping light sources coincide perfectly with each other, the two pumping light sources are activated alternately by clock signals that are 180.degree. out of phase with each other. Alternatively, optical shutters may be provided between the optical coupler and the respective pumping light source, and these optical shutters may be opened alternately. If one or other of the pumping light sources stops due to failure, the average level of the pumping light supplied to the optical fibers will drop. To compensate for this, it will be preferable to make provision so that when a fault is detected in one light source, pumping light is continuously supplied to the optical coupler from the other pumping light source.
摘要翻译：来自两个泵浦光源的泵浦光被提供给光耦合器，其将其分成两个输出光束并将光束分别提供给前向和后向路径中的掺铒光纤。为了避免当两个泵浦光源的波长彼此完全一致时发生的干扰引起的有害影响，两个泵浦光源被彼此相差180度的时钟信号交替激活。或者，光学快门可以设置在光耦合器和相应的泵浦光源之间，并且这些光学快门可以交替打开。如果一个或另一个泵浦光源由于故障而停止，则提供给光纤的泵浦光的平均电平将下降。为了补偿这一点，优选的是提供使得当在一个光源中检测到故障时，泵浦光从另一个泵浦光源连续地提供给光耦合器。

72. 外观设计

USD372227S Scanner 失效
公开(公告)号：USD372227S
公开(公告)日：1996-07-30
申请号：US041624
申请日：1995-07-17
申请人： Kenji Ohta
设计人： Kenji Ohta

73. 发明授权

US5477528A Magneto-optical disk and the reproducing method thereof 失效
标题翻译：磁光盘及其再现方法
公开(公告)号：US5477528A
公开(公告)日：1995-12-19
申请号：US346586
申请日：1994-11-16
申请人： Yoshiteru Murakami , Junsaku Nakajima , Akira Takahashi , Junichiro Nakayama , Kenji Ohta
发明人： Yoshiteru Murakami , Junsaku Nakajima , Akira Takahashi , Junichiro Nakayama , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B7/00
CPC分类号： G11B11/10515 , G11B11/10595
摘要： A magneto-optical disk, which possesses a disc-shaped substrate and a recording layer composed of a perpendicular magnetization film that is formed on the substrate, characterized in having: an area wherein magnetic domains having an upward magnetization and magnetic domains having a downward magnetization are alternately aligned along at least one circuit of the disk, the area being formed on the recording layer, the length of the magnetic domains having the upward magnetization being virtually equal to the length of the magnetic domains having the downward magnetization. This invention also has a reproducing method which is characterized in that, when information is reproduced by projecting a light beam onto the magneto-optical recording disk, the intensity of the light beam is adjusted so as to maximize the amplitude of a reproduced signal that is obtained from the area. With the above arrangement, a high-quality reproduced signal can be obtained independent of the characteristics of individual magneto-optical disks.
摘要翻译：一种磁光盘，其具有盘形基板和由形成在基板上的垂直磁化膜构成的记录层，其特征在于具有：具有向上磁化的磁畴和具有向下磁化的磁畴的区域沿着盘的至少一个电路交替排列，所述区域形成在记录层上，具有向上磁化的磁畴的长度实质上等于具有向下磁化的磁畴的长度。本发明还具有一种再现方法，其特征在于，当通过将光束投射到磁光记录盘上来再现信息时，调整光束的强度，以使得再现信号的幅度最大化从该地区获得。通过上述配置，可以独立于各个磁光盘的特性来获得高质量的再生信号。

74. 发明授权

US5452272A Magneto-optical recording and reproducing device having light interrupting forming main robe and side robe light beam portions 失效
标题翻译：具有遮光形成主袍和侧蓬灯光部分的磁光记录和再现装置
公开(公告)号：US5452272A
公开(公告)日：1995-09-19
申请号：US175748
申请日：1993-12-30
申请人： Yoshiteru Murakami , Junsaku Nakajima , Akira Takahashi , Kenji Ohta
发明人： Yoshiteru Murakami , Junsaku Nakajima , Akira Takahashi , Kenji Ohta
IPC分类号： G11B7/135 , G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10586 , G11B11/10515 , G11B11/10543
摘要： A magneto-optical recording and reproducing device is provided with a magneto-optical disk for reproducing recorded information using light, a semiconductor laser, an objective lens for converging a light beam emitted from the semiconductor laser onto the magneto-optical disk and a light interrupting member for interrupting a portion of a light beam before it is incident on the objective lens. The magneto-optical disk is composed of a readout layer which is predominant in in-plane magnetization, and in which a transition occurs to be predominant in perpendicular magnetization as temperature thereof is raised and a recording layer for recording thereon information using a perpendicular magnetization. In this arrangement, since the light interrupting member is provided, a light spot can be made smaller, thereby improving a recording density. Moreover, even when temperature of the readout layer is raised due to a side robe generated by the light interrupting member, in-plane magnetization is maintained in the readout layer. Thus, interference by unwanted reproducing signals due to the side robe can be prevented, thereby improving a reproducing signal quality.
摘要翻译：磁光记录和再现装置设置有用于使用光再现记录信息的磁光盘，半导体激光器，用于将从半导体激光器发射的光束会聚到磁光盘上的物镜和光中断用于在光束入射到物镜之前中断光束的一部分。磁光盘由在平面磁化中占主要地位的读出层组成，其中随着温度的升高而在垂直磁化中发生转移，而在其中利用垂直磁化记录信息的记录层。在这种布置中，由于设置了遮光构件，可以使光点更小，从而提高记录密度。此外，即使由于由遮光构件产生的侧蓬而导致读出层的温度上升，在读出层中也保持平面内的磁化。因此，可以防止由于侧灯引起的不必要的再现信号的干扰，从而提高再现信号质量。

75. 发明授权

US5347510A Method of manufacturing a master plate where its guide groove has an inclined angle 失效
标题翻译：制造其导向槽具有倾斜角的主板的方法
公开(公告)号：US5347510A
公开(公告)日：1994-09-13
申请号：US4266
申请日：1993-01-14
申请人： Junji Hirokane , Hiroyuki Katayama , Junichiro Nakayama , Michinobu Mieda , Kenji Ohta
发明人： Junji Hirokane , Hiroyuki Katayama , Junichiro Nakayama , Michinobu Mieda , Kenji Ohta
IPC分类号： G01Q80/00 , G11B7/007 , G11B7/24 , G11B7/26
CPC分类号： G11B7/24076 , G11B7/261
摘要： A master plate for manufacturing a stamper for injecting molding of an optical memory device has a substrate having a plurality of guiding grooves on a surface thereof with a predetermined interval. The respective edge portions of the guiding grooves are inclined with respect to the surface of the substrate at an angle not more than 30.degree.. According to a manufacturing method of the master plate, the post-baking process is carried out at a baking temperature of not less than 150.degree. C. and an etching gas containing O.sub.2 gas of 4 (SCCM) to 10 (SCCM) is used. Thus, even when the copying is carried out with respect to the substrate of the optical memory device according to the injection molding process wherein the stamper, which is manufactured based on the above-mentioned master plate, is used, the mold release of the stamper can be carried out without being caught by the substrate. Thus, it is possible to keep the respective shapes of the guiding grooves of the s tamper, thereby enabling of manufacturing the substrate of the optical memory device with high repeatability.
摘要翻译：用于制造用于注射成型光学存储器件的压模的母板具有在其表面上以预定间隔具有多个导向槽的衬底。引导槽的各个边缘部分相对于基板的表面以不大于30°的角度倾斜。根据主板的制造方法，后烘烤处理在不低于150℃的烘烤温度下进行，并且使用含有4（SCCM）至10（SCCM）的O 2气体的蚀刻气体。因此，即使在使用根据上述主板制造的压模的注射成型工艺相对于光学存储器件的基板进行复印时，压模的脱模可以在不被基材捕获的情况下进行。因此，可以保持篡改器的引导槽的各自的形状，从而能够以高重复性制造光学存储器件的基板。

76. 发明授权

US5328256A Anti-skid brake control device 失效
标题翻译：防滑制动控制装置
公开(公告)号：US5328256A
公开(公告)日：1994-07-12
申请号：US942209
申请日：1992-09-09
申请人： Kenji Ohta , Kousaku Shimada , Hayato Sugawara
发明人： Kenji Ohta , Kousaku Shimada , Hayato Sugawara
IPC分类号： B60T8/1755 , B60T8/172 , B60T8/1764 , B60T8/50 , B60T8/58
CPC分类号： B60T8/1764 , B60T8/505
摘要： An anti-skid brake control device has a control circuit 6 to which signals from a steering angle sensor 14, a yaw detector 7 and respective wheel velocity sensors 3a.about.3d of a motor vehicle are inputted, an oil pressure actuator 5 controls of the pressure of the braking fluid for respective wheel cylinders 2a.about.2d based upon target slip rates Sfrt. Sflt, Srrt and Srlt and measured slip rates Sfr, Sfl, Srr and Srl for the respective wheels calculated in the control circuit 6. The target slip rates for the respective wheels, which are principally determined dependent upon the deviation .beta. between compensated target yaw angular acceleration .omega.R and measured yaw angular acceleration .omega., are set independently and are modified dependent upon the motor vehicle body velocity, whereby the braking forces for the respective wheels are independently controlled . In this way, it is possible to suppress generated yaw moment and to improve stability of the motor vehicle, while also safely reducing the braking distance.
摘要翻译：防滑制动控制装置具有控制电路6，来自转向角传感器14，偏航检测器7以及机动车辆的各个车轮速度传感器3a差分3d的信号被输入到其中，油压致动器5控制压力基于目标滑移速率Sfrt的相应轮缸2a差速器2d的制动流体。 Sflt，Srrt和Srlt，以及在控制电路6中计算的各个车轮的滑移速率Sfr，Sfl，Srr和Srl。各车轮的目标滑移率主要取决于补偿目标横摆角度加速度ωR和测量的偏航角加速度ω是独立设定的，并且根据机动车体速度进行修改，由此分别控制各个车轮的制动力。以这种方式，可以抑制产生的横摆力矩并提高机动车辆的稳定性，同时也可以安全地减小制动距离。

77. 发明授权

US5293359A Magnetic recording and reproducing apparatus having a ferrimagnetic recording medium, a magnetic head and first and second light sources 失效
标题翻译：具有铁磁记录介质，磁头和第一和第二光源的磁记录和重放装置
公开(公告)号：US5293359A
公开(公告)日：1994-03-08
申请号：US741932
申请日：1991-08-08
申请人： Kenji Ohta , Akira Takahashi , Junsaku Nakajima , Yoshiteru Murakami , Junji Hirokane
发明人： Kenji Ohta , Akira Takahashi , Junsaku Nakajima , Yoshiteru Murakami , Junji Hirokane
IPC分类号： G11B5/02 , G11B5/00 , G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B5/00 , G11B2005/0021
摘要： A magnetic recording and reproducing apparatus using a recording medium made of a ferrimagnetic material, comprises a magnetic head for magnetically recording information on a recording area of a selected information recording track on a recording medium having a plurality of tracks and for magnetically reproducing the information from the recording medium, the magnetic head has a width larger than that of the width of the selected information recording track of the recording medium. For recording, light beams are radiated from a first light source on the recording area of the selected information recording track upon which recording is to be performed tracks to raise the temperature of the irradiated area to approximately a Curie temperature so as to allow recording only on that area. For reproduction, light beams are radiated from another light source onto areas on both sides of on a second area of the recording medium, located on both sides of the selected information recording track, to raise the temperature of the second irradiated areas to approximately a magnetic compensation temperature so as to allow reproduction only from the desired track, thus preventing crosstalk from the side tracks.
摘要翻译：使用由铁氧体材料制成的记录介质的磁记录和再现装置包括磁头，用于在具有多个轨道的记录介质上将所选择的信息记录轨道的记录区域上的信息磁记录，并用于从记录介质中，磁头的宽度大于记录介质的选定信息记录道的宽度。为了进行记录，光束从要进行记录的所选择的信息记录轨道的记录区域上的第一光源辐射，以将照射区域的温度升高到大约居里温度，以便仅在那个地区。为了再现，将光束从另一光源辐射到位于所选择的信息记录轨道的两侧的记录介质的第二区域的两侧的区域上，以将第二照射区域的温度升高到大约磁补偿温度，以便仅允许从期望的轨道进行再现，从而防止来自侧轨的串扰。

78. 发明授权

US5193082A Optical/magnetic composite head having magnetic and optical heads in one integrated unit 失效
标题翻译：在一个集成单元中具有磁性和光学头的光学/磁性复合头
公开(公告)号：US5193082A
公开(公告)日：1993-03-09
申请号：US502104
申请日：1990-03-29
申请人： Tomoyuki Miyake , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Tomoyuki Miyake , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B5/02 , G11B5/127 , G11B7/12 , G11B7/135 , G11B11/105
CPC分类号： G11B7/1353 , G11B11/10532 , G11B11/10536 , G11B11/10554 , G11B7/124 , G11B11/1058 , G11B2007/13722
摘要： A photomagnetic composite head comprising a magnetic head and an optical head that are integrated into one unit, an optical waveguide path of the optical head being located in the surface of the magnetic head that faces a recording medium, and a laser beam that passes through the optical waveguide path being irradiated on a point on the recording medium where a magnetic field is impressed from the magnetic head, whereby recording can be performed under a condition in which the coercivity of the recording medium has been lowered by the laser beam, thus making it possible to achieve high density recording by using a recording medium with a high coercivity.

79. 发明授权

US5175079A Optical memory device 失效
标题翻译：光学存储器件
公开(公告)号：US5175079A
公开(公告)日：1992-12-29
申请号：US750890
申请日：1991-08-26
申请人： Kazuo Van , Kenji Ohta , Yoshiteru Murakami
发明人： Kazuo Van , Kenji Ohta , Yoshiteru Murakami
IPC分类号： G03F7/032 , C08F299/06 , C09D175/16 , G03C1/00 , G03C1/73 , G03C1/76 , G11B7/24 , G11B7/244 , G11B7/245 , G11B7/26
CPC分类号： G11B7/245 , C08F299/06 , C09D175/16 , G11B7/244 , Y10S430/146 , Y10S430/163 , Y10S430/165
摘要： An optical memory device comprising:a transparent substrate; anda recording film deposited on the transparent substrate, the recording film being formed by preparing a composition in which a diarylethene-type photochromic compound is dispersed in an ultraviolet-curing polyurethaneacrylate resin of solventless type and by curing the composition by an ultraviolet ray irradiation.

80. 发明授权

US5053611A Device for reducing mechanical vibrations when utilizing a magneto-optical card as a recording medium 失效
标题翻译：使用磁光卡作为记录介质时减少机械振动的装置
公开(公告)号：US5053611A
公开(公告)日：1991-10-01
申请号：US287053
申请日：1988-12-21
申请人： Akira Takahashi , Yoshiteru Murakami , Junichiro Nakayama , Kenji Ohta , Hiroyuki Katayama , Michinobu Mieda
发明人： Akira Takahashi , Yoshiteru Murakami , Junichiro Nakayama , Kenji Ohta , Hiroyuki Katayama , Michinobu Mieda
IPC分类号： G11B11/10 , G11B7/0033 , G11B11/105 , G11B17/34
CPC分类号： G11B11/10565 , G11B11/10556 , G11B11/1056 , G11B11/10563 , G11B17/34 , G11B7/0033
摘要： A recording and reproducing device for a magneto-optical card includes an optical head for irradiating a magneto-optical recording medium of a magneto-optical card placed into the device with a laser beam. A magnetic field generator applies a biased magnetic field to the magneto-optical recording medium, and an optical system manipulating mechanism for the optical system of the above-mentioned optical head varies the spot irradiated by the laser beam. The optical head is fixed to the main frame of the device. The magneto-optical card is also supported where it is irradiated by the laser beam emitted from the optical head. The magneto-optical card is moved in a plane parallel to the surface of the magneto-optical card for rough searching and then a part of or the whole magnetic field generator is moved to come into contact with the magneto-optical card to stop the vibration of the magneto-optical card. The spot to be irradiated by the laser beam is then varied by means of the optical system of the optical head.

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