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61. 发明申请

US20070109923A1 Optical head and optical disk device 有权
标题翻译：光头和光盘装置
公开(公告)号：US20070109923A1
公开(公告)日：2007-05-17
申请号：US10588113
申请日：2005-06-30
申请人： Osamu Mizuno , Hideki Aikoh , Takeharu Yamamoto
发明人： Osamu Mizuno , Hideki Aikoh , Takeharu Yamamoto
IPC分类号： G11B21/10
CPC分类号： G11B7/1376 , G11B7/0937 , G11B7/0946 , G11B7/0948 , G11B7/13927
摘要： [Problem]To provide an optical head having a satisfactory shock resistance and capable of holding an aberration correction lens without consuming power and achieving accurate positioning. [Means for Resolution]An aberration correction lens 4 is disposed in a space between a laser light source 3 and an objective lens 5, and a lens holder 10 is frictionally coupled to a drive shaft 7 via a frictional holding body 8. A piezoelectric element 6 is provided to one end of the drive shaft 7. The piezoelectric element 6 extends and contracts in response to an applied voltage. The lens holder 10 is moved relatively with respect to the drive shaft 7 in the drive shaft direction by varying a change rate when the applied voltage to the piezoelectric element 6 is increased and decreased.
摘要翻译：本发明提供一种具有令人满意的抗冲击能力并能够保持像差校正透镜而不消耗功率并实现精确定位的光学头。 [分辨装置]像差校正透镜4设置在激光光源3和物镜5之间的空间中，透镜保持器10通过摩擦保持体8摩擦地联接到驱动轴7。压电元件6设置在驱动轴7的一端。压电元件6响应于施加的电压而延伸和收缩。当对压电元件6的施加电压增加和减小时，通过改变变化率，透镜架10相对于驱动轴7在驱动轴方向上相对移动。

62. 发明申请

US20060018236A1 Optical recording/reproducing apparatus 有权
标题翻译：光记录/重放装置
公开(公告)号：US20060018236A1
公开(公告)日：2006-01-26
申请号：US11188059
申请日：2005-07-22
申请人： Toshio Matsumoto , Takeharu Yamamoto , Hisashi Senga
发明人： Toshio Matsumoto , Takeharu Yamamoto , Hisashi Senga
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/1263 , G11B7/127 , G11B20/10 , G11B2007/0013
摘要： When a light-receiving element receives a first laser beam, an output power detection unit detects a differential quantum efficiency value of the first laser beam. A control unit judges whether or not an intensity filter and a filter driving unit are operated in accordance with a control signal output from the control unit by using the differential quantum efficiency value from the output power detection unit.
摘要翻译：当光接收元件接收到第一激光束时，输出功率检测单元检测第一激光束的差分量子效率值。控制单元通过使用来自输出功率检测单元的差分量子效率值来判断强度滤波器和滤波器驱动单元是否根据从控制单元输出的控制信号来操作。

63. 发明申请

US20050237867A1 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US20050237867A1
公开(公告)日：2005-10-27
申请号：US11159801
申请日：2005-06-23
申请人： Yuichi Kuze , Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune
发明人： Yuichi Kuze , Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune
IPC分类号： G11B7/007 , G11B7/085 , G11B20/10 , G11B20/12 , G11B27/24 , G11B27/32 , G11B7/09 , G11B7/125
CPC分类号： G11B20/0026 , G11B7/00736 , G11B7/08505 , G11B20/10009 , G11B27/24 , G11B27/329 , G11B2020/1259 , G11B2220/211 , G11B2220/2562
摘要： An optical disc apparatus according to the present invention is usable for an optical disc including a bar code area and a control data area adjacent to the bar code area in a radial direction of the optical disc. The optical disc apparatus includes an optical head for directing an optical beam toward the optical disc so as to form an optical spot on the optical disc and output a signal in accordance with the optical beam reflected by the optical disc; a bar code area determination section for determining whether or not the optical spot is positioned on the bar code area of the optical disc based on the signal output by the optical head; and a control section for controlling the optical head so that the optical spot moves toward the control data area, when the optical spot is determined to be positioned on the bar code area.
摘要翻译：根据本发明的光盘装置可用于包括条形码区域和与光盘径向方向上的条形码区域相邻的控制数据区域的光盘。光盘装置包括用于将光束引向光盘以在光盘上形成光点并根据由光盘反射的光束输出信号的光学头; 条形码区域确定部分，用于基于由光头输出的信号确定光点是否位于光盘的条形码区域上; 以及控制部，用于当确定光点被定位在条形码区域上时，控制光学头，使得光点朝向控制数据区移动。

64. 发明授权

US06628580B1 Optical recording and reproducing apparatus 有权
标题翻译：光学记录和再现设备
公开(公告)号：US06628580B1
公开(公告)日：2003-09-30
申请号：US09545877
申请日：2000-04-07
申请人： Takashi Kishimoto , Takeharu Yamamoto , Katsuya Watanabe , Tatsuya Takeuchi
发明人： Takashi Kishimoto , Takeharu Yamamoto , Katsuya Watanabe , Tatsuya Takeuchi
IPC分类号： G11B700
CPC分类号： G11B7/08529 , G11B7/08517 , G11B7/0906 , G11B7/0917 , G11B7/0953 , G11B2007/0013
摘要： In track jumping or focus jumping in an optical recording and reproducing apparatus for an optical disk, a light beam is accelerated and decelerated from a track to an adjacent one or from an information plane to an adjacent one in the optical disk. A moving time of light beam under acceleration to an adjacent track or information plane for jumping is measured from the start of acceleration to a predetermined point according to tracking o focus error signal. Then, the deceleration signal for tracking or focus actuator is changed on amplitude or period according to the measured period. Thus, track or focus jumping can be performed stably against external disturbances. Alternatively, the light beam is forced to be driven until the level of the tracking or focus error signal is decreased below a predetermined value after the output of the deceleration signal is completed.
摘要翻译：在用于光盘的光学记录和再现装置中的轨道跳跃或聚焦跳跃中，光束从光盘到光盘加速和减速到相邻的一个或从信息平面到相邻的一个。根据跟踪o聚焦误差信号，从加速开始到预定点测量加速下的光束到相邻轨迹或信息平面的移动时间。然后，跟踪或聚焦致动器的减速信号根据测量周期在幅度或周期上改变。因此，可以针对外部干扰稳定地执行跟踪或聚焦跳跃。或者，在完成减速信号的输出之后，迫使光束被驱动直到跟踪或聚焦误差信号的电平降低到预定值以下。

65. 发明授权

US06298019B1 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06298019B1
公开(公告)日：2001-10-02
申请号：US09430040
申请日：1999-10-29
申请人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
发明人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
IPC分类号： G11B700
CPC分类号： G11B7/0945 , G11B7/08511 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk apparatus comprises a focusing means for focusing a light beam on a recording medium having first and second information faces; means for moving a focal point of the light beam in a direction substantially perpendicular to the information faces of the recording medium; means for detecting a reflected light from the recording medium; means for detecting a focus condition of the light beam on the basis of an output signal from the reflected light detecting means; a focus control means for driving the focal point moving means on the basis of an output signal from the focus condition detecting means, and controlling the light beam so that the focus condition of the light beam becomes a prescribed focus condition; and a focus jumping means for moving the focal point of the light beam from the first information face to the second information face by driving the focal point moving means.
摘要翻译：光盘装置包括用于将光束聚焦在具有第一和第二信息面的记录介质上的聚焦装置; 用于沿着与记录介质的信息面大致垂直的方向移动光束的焦点的装置; 用于检测来自记录介质的反射光的装置; 用于根据来自反射光检测装置的输出信号检测光束的聚焦条件的装置; 焦点控制装置，用于根据来自聚焦条件检测装置的输出信号驱动焦点移动装置，并控制光束使得光束的聚焦条件成为规定的聚焦条件; 以及聚焦跳跃装置，用于通过驱动焦点移动装置将光束的焦点从第一信息面移动到第二信息面。

66. 发明授权

US06285635B1 Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US06285635B1
公开(公告)日：2001-09-04
申请号：US09087545
申请日：1998-05-29
申请人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
发明人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
IPC分类号： G11B700
CPC分类号： G11B19/12 , G11B7/08523
摘要： An optical disk apparatus for reproducing information from plural types of information carriers or for recording information to plural types of information carriers, has two or more light sources with different wavelengths, a converging part for converging a light beam emitted from each of the light sources on said information carrier, a movement part for moving the converged spot of the light beam converged by the converging part in a direction substantially perpendicular to the surface of the information carrier, a convergence condition detection part for outputting a signal corresponding to the convergence condition of the light beam on the information carrier, an amplitude detection part for measuring the amplitude of the signal of the convergence condition detection part, and a focus control part for driving the movement part in accordance with the output signal of the convergence condition detection part and for performing control so that the convergence condition of the light beam on the information carrier becomes substantially constant, wherein at the start or restart of the apparatus, before the focus control part is driven, when one of the //
摘要翻译：用于从多种类型的信息载体再现信息或用于将信息记录到多种类型的信息载体的光盘装置具有两个或更多个具有不同波长的光源，用于将从每个光源发射的光束会聚的会聚部分所述信息载体，用于使由所述会聚部分收敛的所述光束的会聚点沿基本上垂直于所述信息载体的表面的方向移动的移动部分，用于输出与所述信息载体的所述收敛条件相对应的信号的会聚条件检测部分，在信息载体上的光束，用于测量会聚条件检测部分的信号的幅度的振幅检测部分，以及用于根据会聚条件检测部分的输出信号驱动运动部分的聚焦控制部分，控制使得光的收敛条件成为信息载体上的信号变得基本恒定，其中在设备的开始或重新启动时，在聚焦控制部分被驱动之前，当其中一个//

67. 发明授权

US09643225B2 Extrusion press 有权
公开(公告)号：US09643225B2
公开(公告)日：2017-05-09
申请号：US14124834
申请日：2012-06-01
申请人： Atsushi Yakushigawa , Takeharu Yamamoto
发明人： Atsushi Yakushigawa , Takeharu Yamamoto
IPC分类号： B21C23/21 , F15B11/042 , H02P29/60
CPC分类号： B21C23/211 , F15B11/0426 , F15B2211/20546 , F15B2211/20576 , H02P29/60
摘要： The present invention provides an extrusion press which eliminates unevenness of dynamic and thermal fatigue degrees of the hydraulic devices which form the hydraulic circuit in the extrusion press, the electric motors which drive the hydraulic pump, the control devices, etc., which makes the dynamic and thermal fatigue degrees and remaining service lives of the component devices even, and which is excellent in energy saving effect.An extrusion press which has a plurality of variable capacity type hydraulic pumps connected to it in parallel for supplying working oil to hydraulic cylinders of the extrusion press, uses a preset working speed as the basis to find the required discharge rate of the hydraulic pumps, and selectively controls the drive operations of the hydraulic pumps, wherein the order of selection of the hydraulic pumps which are selectively controlled in drive operation is controlled by a program which progressively advances when a predetermined number of molding cycles are completed.

68. 发明授权

US08919163B2 Extrusion press and extrusion control method 有权
标题翻译：挤出压榨和挤出控制方法
公开(公告)号：US08919163B2
公开(公告)日：2014-12-30
申请号：US13414102
申请日：2012-03-07
申请人： Takeharu Yamamoto , Atsushi Yakushigawa
发明人： Takeharu Yamamoto , Atsushi Yakushigawa
IPC分类号： B21C51/00 , B21C31/00 , B21C27/00 , B21C23/21 , B21C23/08
CPC分类号： B21C23/211 , B21C23/08 , B21C31/00
摘要： An extrusion press includes a container mover that moves a container at an end platen and molding a product by extruding a billet loaded in the container from a die by a stem driven by a main cylinder device, wherein the extrusion press includes a deflection amount detector that detects a deflection amount of the die; a deflection amount of the die during extrusion is detected; a deviation between the detected deflection amount and a reference deflection amount of the die set in advance is mathematically processed; and the extrusion press includes a controller that sends an output to the container mover to reduce a container sealing force when the deviation is minus, or increase the container sealing force when the deviation is plus so that a container sealing force corresponding to the reference deflection amount acts on an end surface of the die.
摘要翻译：挤压机包括容器移动器，其通过由主缸装置驱动的杆从模具挤出容纳在容器中的坯料而在端板上移动容器并成型产品，其中挤压机包括偏转量检测器，该偏转量检测器检测模具的挠曲量; 检测挤出时的模具的挠曲量; 在数学上处理检测出的偏转量与预先设定的基准偏转量之间的偏差; 并且挤压机包括控制器，其将输出发送到容器移动器以在偏差为负时减小容器密封力，或者当偏差为正时增加容器密封力，使得对应于参考偏转量的容器密封力作用在模具的端面上。

69. 发明申请

US20120160003A1 EXTRUSION PRESS AND EXTRUSION CONTROL METHOD 审中-公开
标题翻译：挤压和挤出控制方法
公开(公告)号：US20120160003A1
公开(公告)日：2012-06-28
申请号：US13414102
申请日：2012-03-07
申请人： Takeharu Yamamoto , Atsushi Yakushigawa
发明人： Takeharu Yamamoto , Atsushi Yakushigawa
IPC分类号： B21C31/00
CPC分类号： B21C23/211 , B21C23/08 , B21C31/00
摘要： An extrusion press includes a container mover that moves a container at an end platen and molding a product by extruding a billet loaded in the container from a die by a stem driven by a main cylinder device, wherein the extrusion press includes a deflection amount detector that detects a deflection amount of the die; a deflection amount of the die during extrusion is detected; a deviation between the detected deflection amount and a reference deflection amount of the die set in advance is mathematically processed; and the extrusion press includes a controller that sends an output to the container mover to reduce a container sealing force when the deviation is minus, or increase the container sealing force when the deviation is plus so that a container sealing force corresponding to the reference deflection amount acts on an end surface of the die.
摘要翻译：挤压机包括容器移动器，其通过由主缸装置驱动的杆从模具挤出容纳在容器中的坯料而在端板上移动容器并成型产品，其中挤压机包括偏转量检测器，该偏转量检测器检测模具的挠曲量; 检测挤出时的模具的挠曲量; 在数学上处理检测出的偏转量与预先设定的基准偏转量之间的偏差; 并且挤压机包括控制器，其将输出发送到容器移动器以在偏差为负时减小容器密封力，或者当偏差为正时增加容器密封力，使得对应于参考偏转量的容器密封力作用在模具的端面上。

70. 发明授权

US08174941B2 Optical disc apparatus, crosstalk correction method and integrated circuit 有权
标题翻译：光盘装置，串扰校正方法和集成电路
公开(公告)号：US08174941B2
公开(公告)日：2012-05-08
申请号：US12097739
申请日：2006-12-13
申请人： Minoru Takazawa , Shin-ichi Yamada , Takeharu Yamamoto , Yasuo Ooishi
发明人： Minoru Takazawa , Shin-ichi Yamada , Takeharu Yamamoto , Yasuo Ooishi
IPC分类号： G11B7/00
CPC分类号： G11B7/0917 , G11B7/094 , G11B7/0941 , G11B7/0948 , G11B7/0956
摘要： When a focus error signal (FE signal) is detected with an astigmatic method, a track crossing component leaks into the FE signal. Another detection method for the FE signal would reduce the leaking signal, but is not applicable when the light use efficiency decreases. An optical crosstalk correction amount determination unit (1000) determines a correction amount to correct an output of a tracking error detection unit (120) based on optical crosstalk from a TE signal to an FE signal occurring in reflection light from an optical disc (102) when a spot crosses a track. An output of the tracking error detection unit (120) is multiplied by the determined correction amount, and added to an output of the focus error detection unit (118). A focus control unit (138) executes focus control based on the addition result. This effectively reduces a TE signal component that leaks into the FE signal due to optical crosstalk.
摘要翻译：当利用散光法检测到聚焦误差信号（FE信号）时，轨迹交叉分量泄漏到FE信号中。 FE信号的另一种检测方法将减少泄漏信号，但是当光使用效率降低时不适用。光串扰校正量确定单元（1000）基于从TE信号到来自光盘（102）的反射光中发生的FE信号的光串扰确定校正跟踪误差检测单元（120）的输出的校正量，当一个点穿过一条轨道。将跟踪误差检测单元（120）的输出乘以所确定的校正量，并将其相加到聚焦误差检测单元（118）的输出。聚焦控制单元（138）基于相加结果执行聚焦控制。这有效地减少了由于光串扰而泄漏到FE信号中的TE信号分量。

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