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1. 发明授权

US07519979B2 Optical head having a position detection portion and optical disk device utilizing the optical head 有权
标题翻译：具有位置检测部分的光头和利用该光头的光盘装置
公开(公告)号：US07519979B2
公开(公告)日：2009-04-14
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： G11B7/00
CPC分类号： G11B7/1376 , G11B7/0937 , G11B7/0946 , G11B7/0948 , G11B7/13927
摘要： 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：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设置在一个驱动轴7的端部。压电元件6响应于所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。

2. 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。

3. 发明申请

US20110296889A1 EXTRUSION PRESS DEVICE 有权
标题翻译：挤压设备
公开(公告)号：US20110296889A1
公开(公告)日：2011-12-08
申请号：US13201649
申请日：2010-01-27
申请人： Takeharu Yamamoto
发明人： Takeharu Yamamoto
IPC分类号： B21C27/00
CPC分类号： B21C27/00 , B21C27/04
摘要： A two-split seal block is enabled, when closed, to come into close contact with an abutment surface of the seal block and an outer circumferential surface of an extrusion stem or fix dummy block via a seal member pasted to the abutment surface of the seal block and a seal member provided on an inner circumferential surface of the seal block and a pressing means capable of pressing and causing a seal member provided on a container side end surface of the seal block against and to come into close contact with a stem side end surface of the container is provided movably in the extrusion direction, and the seal block is provided so as to be capable of opening and closing by rocking in a direction crossing the axial direction of the extrusion stem and at the same time, the seal block is provided so as to be capable of moving in the direction crossing the axial direction of the extrusion stem in an open state.
摘要翻译：闭合时能够使两分裂密封块与密封块的邻接表面和挤出杆的外周表面紧密接触，或者通过密封件固定在密封件上，该密封件粘贴到密封件的邻接表面上块体和设置在密封块的内周面上的密封构件，以及按压装置，其能够使设置在密封块的容器侧端面上的密封构件与杆侧端部紧密接触容器的表面沿挤出方向可移动地设置，并且密封块设置成能够通过在与挤出杆的轴向方向交叉的方向上摆动来打开和关闭，同时密封块是设置成能够在打开状态下沿与挤出杆的轴向交叉的方向移动。

4. 发明申请

US20100195455A1 OPTICAL DISC APPARATUS, FOCUS ERROR SIGNAL ADJUSTMENT METHOD, PROGRAM, AND INTEGRATED CIRCUIT 审中-公开
标题翻译：光盘设备，焦点错误信号调整方法，程序和集成电路
公开(公告)号：US20100195455A1
公开(公告)日：2010-08-05
申请号：US12668764
申请日：2009-05-25
申请人： Tooru Maruyama , Takeharu Yamamoto
发明人： Tooru Maruyama , Takeharu Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/0945
摘要： To adjust the symmetry of a focus error signal, the symmetry of the focus error signal needs to be measured during upward and downward driving of an objective lens, which is performed at every varying setting of a signal correction gain value of the focus error signal, and such adjustment takes a long time. An optical disc device (100) measures a focus error signal before differentiation at a local maximum point and a local minimum point of a focus error signal using a prior-to-differentiation FE measurement unit (50), and calculates the symmetry of the S-shape of a focus error signal using a symmetry calculation unit (51), and performs balance adjustment based on the calculation result. The device with this structure adjusts the symmetry of a focus error signal at a high speed by requiring an upward and downward operation to be performed only once.
摘要翻译：为了调整聚焦误差信号的对称性，需要在物镜的向上和向下驱动期间测量聚焦误差信号的对称性，该物镜在聚焦误差信号的信号校正增益值的每个变化设置下执行，这种调整需要很长时间。光盘装置（100）使用先验微分FE测量单元（50）在聚焦误差信号的局部最大点和局部最小点进行微分之前测量聚焦误差信号，并计算S的对称性 - 使用对称性计算单元（51）形成聚焦误差信号，并且基于计算结果进行平衡调整。具有这种结构的装置通过需要仅执行一次的向上和向下操作来高速调节聚焦误差信号的对称性。

5. 发明申请

US20100024509A1 STEM SLIDE DEVICE 有权
标题翻译： STEM幻灯片设备
公开(公告)号：US20100024509A1
公开(公告)日：2010-02-04
申请号：US12443188
申请日：2007-08-08
申请人： Takeharu Yamamoto , Yasuo Katoh
发明人： Takeharu Yamamoto , Yasuo Katoh
IPC分类号： B21C26/00
CPC分类号： B21C26/00 , B21C23/211 , B21C33/00
摘要： A stem slide apparatus comprises a stem slide base (73) with a stem (6) horizontally mounted thereon to press a billet (B) mounted on a container (5), a slide guide member (72, 72a, 72b) mounted on a vertical stem move support member (71) and formed with guide grooves in which the side end portions of the stem slide base are fitted and vertically slid, and a lock means (77a, 77b) arranged on the slide guide member to press the side end portions of the stem slide base. The stem slide apparatus further comprises a drive mechanism (10) having an electric motor (11) to move the slide base in the sliding direction. Therefore the indirect cause of a fire is removed and the maintenance work simplified.
摘要翻译：杆滑动装置包括杆滑动基座（73），其具有水平地安装在其上的杆（6），以按压安装在容器（5）上的坯料（B），安装在容器（5）上的滑动引导构件（72,72a，72b）垂直杆移动支撑构件（71）并且形成有引导槽，其中杆滑动基座的侧端部被装配并竖直滑动;以及锁定装置（77a，77b），其布置在滑动引导构件上以将侧端杆滑动基座的部分。杆滑动装置还包括具有电动机（11）的驱动机构（10），以沿滑动方向移动滑动基座。因此，间接造成火灾的原因被消除，维护工作简化。

6. 发明授权

US07652970B2 Light information apparatus and control method of light information apparatus 有权
标题翻译：光信息设备的光信息设备和控制方法
公开(公告)号：US07652970B2
公开(公告)日：2010-01-26
申请号：US11568014
申请日：2005-06-20
申请人： Katsuhiko Yasuda , Hidenori Wada , Takeharu Yamamoto , Toshio Matsumoto
发明人： Katsuhiko Yasuda , Hidenori Wada , Takeharu Yamamoto , Toshio Matsumoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1263 , G11B7/13925
摘要： An optical information apparatus includes a laser which emits a light beam, an objective lens and the like which converge a light beam emitted from the laser on an optical recording medium, spherical aberration correction instrument which is arranged on an optical axis of the light beam which links the laser and the objective lens, and corrects a spherical aberration generated on the optical recording medium. Correction is performed so that outgoing power of the laser changes according to a correction amount by the spherical aberration correction instrument.
摘要翻译：光学信息设备包括发射光束的激光器，物镜等，其将从激光器发射的光束会聚在光学记录介质上，球面像差校正仪器被布置在光束的光轴上，连接激光和物镜，并且校正在光学记录介质上产生的球面像差。执行校正，使得激光器的输出功率根据球面像差校正仪器的校正量而改变。

7. 发明申请

US20090266133A1 STEM SLIDE DEVICE 有权
标题翻译： STEM幻灯片设备
公开(公告)号：US20090266133A1
公开(公告)日：2009-10-29
申请号：US12095744
申请日：2006-12-08
申请人： Koji Nakano , Takeharu Yamamoto
发明人： Koji Nakano , Takeharu Yamamoto
IPC分类号： B21C23/00
CPC分类号： B21C26/00 , B21C23/21 , B21C23/215 , B21C33/00
摘要： The stem slide device of the present invention in an extruder has a stem vertical movement support (71) and slide guide members (72-1, 2) fastened to the support and forming guide grooves. A stem (6) pushing against a billet loaded in a container is held at the slide table (73) horizontally. The slide table slides in the vertical direction along the vertical face of the support. When the slide table is positioned at the bottom end of the guide groove, the hydraulic cylinders (77-1, 2) are driven so that the rods (78-1, 2) push the back surface of the slide table against the vertical face of the support. Therefore, the axis of the stem is held matched with the axis of the container.
摘要翻译：本发明的挤压机的杆滑动装置具有杆垂直运动支撑件（71）和固定到支撑件上并形成导向槽的滑动导向件（72-1,2）。推动装在容器中的坯料的杆（6）水平地保持在滑动台（73）上。滑动台沿着支撑件的垂直面在垂直方向上滑动。当滑动台位于引导槽的底端时，驱动液压缸（77-1,2），使得杆（78-1,2）将滑动台的后表面抵靠垂直面的支持。因此，杆的轴线与容器的轴线保持一致。

8. 发明授权

US07480232B2 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US07480232B2
公开(公告)日：2009-01-20
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： G11B7/24
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。

9. 发明授权

US06925037B2 Optical disc drive and optical disc controller 失效
标题翻译：光盘驱动器和光盘控制器
公开(公告)号：US06925037B2
公开(公告)日：2005-08-02
申请号：US10386612
申请日：2003-03-12
申请人： Takashi Kishimoto , Takeharu Yamamoto , Yoshihiro Kanda , Jun Kikuchi
发明人： Takashi Kishimoto , Takeharu Yamamoto , Yoshihiro Kanda , Jun Kikuchi
IPC分类号： G11B7/085 , G11B7/00
CPC分类号： G11B7/08529 , G11B7/08541
摘要： An optical disc drive includes: an optical head with an actuator and a photodetector; a tracking driver outputting a drive signal to the actuator; a first tracking error signal generator for generating a first tracking error signal based on an output signal of the photodetector; first and second lens position control sections for respectively outputting first and second lens position control signals to the tracking driver; and a selector for selectively supplying the first tracking error signal to the first or second lens position control section according to a moving velocity of the optical head during a seek operation. The first lens position control signal is obtained by extracting signal components, of which the frequencies are equal to or lower than a predetermined frequency, from the first tracking error signal. The second lens position control signal is obtained by extracting DC components of the first tracking error signal at on-track points thereof.
摘要翻译：光盘驱动器包括：具有致动器和光电检测器的光学头; 向所述致动器输出驱动信号的跟踪驱动器; 第一跟踪误差信号发生器，用于基于光电检测器的输出信号产生第一跟踪误差信号; 第一和第二透镜位置控制部分，用于分别向跟踪驱动器输出第一和第二透镜位置控制信号; 以及选择器，用于根据拾取操作期间光头的移动速度，选择性地将第一跟踪误差信号提供给第一或第二透镜位置控制部。通过从第一跟踪误差信号中提取频率等于或低于预定频率的信号分量来获得第一透镜位置控制信号。第二透镜位置控制信号通过在其轨迹点上提取第一跟踪误差信号的DC分量来获得。

10. 发明授权

US06834030B2 Optical disk apparatus 有权
标题翻译：检测异常状态的盘装置
公开(公告)号：US06834030B2
公开(公告)日：2004-12-21
申请号：US10463368
申请日：2003-06-17
申请人： Takashi Kishimoto , Takeharu Yamamoto , Kenji Fujiune , Katsuya Watanabe
发明人： Takashi Kishimoto , Takeharu Yamamoto , Kenji Fujiune , Katsuya Watanabe
IPC分类号： G11B700
CPC分类号： G11B7/0946 , G11B7/0901 , G11B7/0908 , G11B7/0941 , G11B7/095 , G11B7/0953
摘要： An optical disk apparatus includes: a light irradiator operable to converge a light beam and irradiate an information carrier with the converged light beam; a traverse motor operable to move the light beam in a direction traversing a track formed on a surface of the information carrier; and a tracking controller operable to control the traverse motor to scan the track with the light beam. The tracking controller includes a deviation detector operable to generate a detection signal, a tracking driving circuit operable to generate a driving signal, an integrator operable to integrate a magnitude of a signal corresponding to the driving signal over a predetermined time period and an abnormal state detector operable to detect an abnormal state of the traverse motor based on an output of the integrator.
摘要翻译：光盘装置包括：光照射器，其可操作以会聚光束并用会聚光束照射信息载体; 横动马达，其可操作以沿着穿过形成在信息载体的表面上的轨道的方向移动光束; 以及跟踪控制器，其可操作以控制横动马达以光束扫描轨道。跟踪控制器包括可操作以产生检测信号的偏差检测器，可操作以产生驱动信号的跟踪驱动电路，可用于在预定时间段内对与驱动信号相对应的信号的大小进行积分的积分器和异常状态检测器可操作以基于积分器的输出来检测横动马达的异常状态。

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