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71. 发明申请

US20070133970A1 Lens driving apparatus, imaging apparatus, and lens barrel and camera main body used for this 有权
标题翻译：用于此的镜头驱动装置，成像装置，镜筒和相机主体
公开(公告)号：US20070133970A1
公开(公告)日：2007-06-14
申请号：US10576944
申请日：2004-12-09
申请人： Kenichi Honjo , Kouji Shibuno , Takayuki Hayashi , Keiji Sakamoto , Takumi Kuwahara , Hiroyuki Kawahara , Hironori Honsho , Naoto Yumiki , Masato Murayama
发明人： Kenichi Honjo , Kouji Shibuno , Takayuki Hayashi , Keiji Sakamoto , Takumi Kuwahara , Hiroyuki Kawahara , Hironori Honsho , Naoto Yumiki , Masato Murayama
IPC分类号： G03B13/00 , G03B3/00
CPC分类号： G02B7/102 , G02B7/08 , G02B7/36 , G03B3/10
摘要： A lens position calculator is provided that determines a phase of a driving signal as a reference position of an imaging lens when an output value of a position detection sensor reaches a threshold value. The lens position calculator determines a position obtained by performing addition or subtraction on the reference position read out from a reference position storage as a judgment position, detects an output value of the position detection sensor at a timing in synchronization with the driving signal that drives a driver and at the judgment position, and judges whether the output value of the position detection sensor at the judgment position reaches the threshold value or not, so as to determine the reference position again.
摘要翻译：提供一种透镜位置计算器，当位置检测传感器的输出值达到阈值时，确定驱动信号的相位作为成像透镜的基准位置。透镜位置计算器确定通过对从参考位置存储器读出的参考位置执行加法或减法而获得的位置作为判断位置，在与驱动信号的驱动信号同步的定时检测位置检测传感器的输出值驾驶员并且在判断位置，并且判断在判断位置处的位置检测传感器的输出值是否达到阈值，以便再次确定参考位置。

72. 发明授权

US07105857B2 Nitride semiconductor device comprising bonded substrate and fabrication method of the same 有权
标题翻译：包含键合衬底的氮化物半导体器件及其制造方法
公开(公告)号：US07105857B2
公开(公告)日：2006-09-12
申请号：US10614342
申请日：2003-07-08
申请人： Shinichi Nagahama , Masahiko Sano , Tomoya Yanamoto , Keiji Sakamoto , Masashi Yamamoto , Daisuke Morita
发明人： Shinichi Nagahama , Masahiko Sano , Tomoya Yanamoto , Keiji Sakamoto , Masashi Yamamoto , Daisuke Morita
IPC分类号： H01L31/12
CPC分类号： H01L33/44 , H01L21/76251 , H01L33/0079 , H01L33/32 , H01L33/483 , H01L33/508 , H01L33/62 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2224/49171 , H01L2924/01013 , H01L2924/01037 , H01L2924/12032 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要： A substrate 1 for growing nitride semiconductor has a first and second face and has a thermal expansion coefficient that is larger than that of the nitride semiconductor. At least n-type nitride semiconductor layers 3 to 5, an active layer 6 and p-type nitride semiconductor layers 7 to 8 are laminated to form a stack of nitride semiconductor on the first face of the substrate 1. A first bonding layer including more than one metal layer is formed on the p-type nitride semiconductor layer 8. A supporting substrate having a first and second face has a thermal expansion coefficient that is larger than that of the nitride semiconductor and is equal or smaller than that of the substrate 1 for growing nitride semiconductor. A second bonding layer including more than one metal layer is formed on the first face of the supporting substrate. The first bonding layer 9 and the second bonding layer 11 are faced with each other and, then, pressed with heat to bond together. After that, the substrate 1 for growing nitride semiconductor is removed from the stack of nitride semiconductor so that a nitride semiconductor device is provided.
摘要翻译：用于生长氮化物半导体的衬底1具有第一面和第二面，其热膨胀系数大于氮化物半导体的热膨胀系数。至少n型氮化物半导体层3至5，有源层6和p型氮化物半导体层7至8层叠以在衬底1的第一面上形成氮化物半导体层。第一接合层包括更多在p型氮化物半导体层8上形成一层以上的金属层。具有第一面和第二面的支撑基板的热膨胀系数大于氮化物半导体的热膨胀系数，并且等于或小于基板1的热膨胀系数用于生长氮化物半导体。在支撑基板的第一面上形成包括多于一个金属层的第二粘接层。第一接合层9和第二接合层11彼此面对，然后被加热压合以结合在一起。之后，从氮化物半导体堆叠中去除用于生长氮化物半导体的衬底1，从而提供氮化物半导体器件。

73. 发明申请

US20050030994A1 Nitride semiconductor laser device and method of manufacturing the nitride semiconductor laser device 有权
标题翻译：氮化物半导体激光装置及其制造方法
公开(公告)号：US20050030994A1
公开(公告)日：2005-02-10
申请号：US10888497
申请日：2004-07-12
申请人： Tokuya Kozaki , Keiji Sakamoto , Hiroaki Matsumura
发明人： Tokuya Kozaki , Keiji Sakamoto , Hiroaki Matsumura
IPC分类号： H01S5/30 , H01S5/02 , H01S5/22 , H01S5/32 , H01S5/323 , H01S5/343 , H01S5/00
CPC分类号： B82Y20/00 , H01S5/0201 , H01S5/0202 , H01S5/2214 , H01S5/3202 , H01S5/32341 , H01S5/34333 , H01S2304/12
摘要： The nitride semiconductor laser device has a counter electrode structure where contact resistance is reduced and manufacturing methods thereof are provided. The nitride semiconductor laser device comprises a nitride semiconductor substrate having a first main surface and a second main surface. A nitride semiconductor layer is stacked on the first main surface of the nitride semiconductor substrate. A ridge-shaped stripe is formed in the nitride semiconductor layer, and a resonance surface forms an optical waveguide in the direction perpendicular to the length of the ridge-shaped stripe. A first region having a crystal growth facet in the (0001) plane and a second region on the first main surface or the second main surface are provided. Further, a recess is formed in the second region of the first main surface and/or the second main surface. A ridge-shape stripe is formed over the first main surface of the nitride semiconductor substrate.
摘要翻译：氮化物半导体激光装置具有接触电阻降低的对电极结构及其制造方法。氮化物半导体激光器件包括具有第一主表面和第二主表面的氮化物半导体衬底。氮化物半导体层堆叠在氮化物半导体衬底的第一主表面上。在氮化物半导体层中形成脊状条，共振面在与脊状条的长度方向垂直的方向上形成光波导。在（0001）面具有晶体生长面的第一区域和在第一主表面或第二主表面上的第二区域。此外，在第一主表面和/或第二主表面的第二区域中形成凹部。在氮化物半导体衬底的第一主表面上形成脊状条纹。

74. 发明授权

US06252367B1 Servo controller 有权
标题翻译：伺服控制器
公开(公告)号：US06252367B1
公开(公告)日：2001-06-26
申请号：US09479998
申请日：2000-01-10
申请人： Keiji Sakamoto , Yukio Toyosawa , Kenji Takahashi
发明人： Keiji Sakamoto , Yukio Toyosawa , Kenji Takahashi
IPC分类号： G05B1101
CPC分类号： G05B19/39 , G05B2219/42129
摘要： A servo controller capable of controlling motors to be driven in different control modes, such as a synchronous motor and an induction motor, irrespectively of the type of the motor, and also capable of carrying out servo control by using incremental feedback signals. A control section common to individual motors and a control section dedicated to each motor are provided in a servo controller. The common control section is always used, while the dedicated control section is selectively used in accordance with the motor to be driven. Thereby, motors each requiring a different control mode can be controlled by the servo controller of one type. The use of th servo controller of one type can reduce maintenance management and a load on a CNC. Also, the provision of the control section common to individual motors can restrain increases of size, installation area and manufacturing cost of the device.
摘要翻译：一种能够控制不同控制模式的电动机的伺服控制器，例如同步电动机和感应电动机，与电动机的类型无关，并且还能够通过使用增量反馈信号进行伺服控制。在伺服控制器中设置有单个电动机共同控制部分和专用于每个电动机的控制部分。始终使用公共控制部，同时根据要驱动的电动机有选择地使用专用控制部。因此，可以通过一种类型的伺服控制器来控制需要不同控制模式的电动机。使用一种伺服控制器可以减少CNC的维护管理和负载。此外，单个电动机共同的控制部的设置可以抑制装置的尺寸，安装面积和制造成本的增加。

75. 发明授权

US5367238A Backlash acceleration control method 失效
标题翻译：间隙加速控制方法
公开(公告)号：US5367238A
公开(公告)日：1994-11-22
申请号：US934662
申请日：1993-01-21
申请人： Keiji Sakamoto , Yasusuke Iwashita
发明人： Keiji Sakamoto , Yasusuke Iwashita
IPC分类号： G05B19/18 , G05B19/404 , G05B19/416 , G05B19/407
CPC分类号： G05B19/404 , G05B2219/41078 , G05B2219/41084 , G05B2219/41429 , G05B2219/41439
摘要： A backlash acceleration control method capable of more accurately setting a timing for an initiation for a backlash acceleration correction in a servo system that carries out a feedforward control compared with conventional methods. According to this method, the backlash acceleration correction is initiated at the time when the feedforward amount is reversed from positive to negative or vice versa. Furthermore, this initiation time for the backlash acceleration correction can also be determined according to the point of change of the sign of a speed command modified by the feed forward amount. When the feedforward coefficient becomes close to "1", the positional deviation becomes almost "0", and therefore an actual shift movement comes to follow the shift command without time lag. Accordingly, a point where a shift direction of the shift command is reversed will be dispersed, and so an initiation time for the backlash acceleration correction cannot be determined accurately. However, a point (Ts), where a sign of the feedforward amount is reversed, can accurately represent the turning point of the shift direction.
摘要翻译： PCT No.PCT / JP92 / 00666 Sec。 371日期：1993年1月21日 102（e）日期1993年1月21日PCT提交1992年5月22日PCT公布。出版物WO92 / 21075 日期：1992年11月26日。与常规方法相比，能够更精确地设定与执行前馈控制的伺服系统中的间隙加速度校正的启动定时的间隙加速度控制方法。根据该方法，在前馈量从正反转到反向时启动间隙加速度校正。此外，还可以根据由前馈量修改的速度指令的符号的变化点来确定该间隙加速度校正的该起始时间。当前馈系数接近于“1”时，位置偏差几乎为“0”，因此实际的偏移运动跟随移位指令而没有时间滞后。因此，变速指令的换档方向相反的点将被分散，因此无法准确地确定齿隙加速度校正的起动时间。然而，前馈量的符号反转的点（Ts）能够精确地表示换档方向的转折点。

76. 发明授权

US4916375A Servomotor control apparatus 失效
标题翻译：伺服电机控制装置
公开(公告)号：US4916375A
公开(公告)日：1990-04-10
申请号：US243032
申请日：1988-08-04
申请人： Mitsuo Kurakake , Keiji Sakamoto
发明人： Mitsuo Kurakake , Keiji Sakamoto
IPC分类号： G05D3/12 , G05B19/404 , G05D17/02 , H02P29/00
CPC分类号： G05D17/02 , G05B19/404 , G05B2219/41036 , G05B2219/41084 , G05B2219/41426
摘要： The invention is a servomotor control apparatus for controlling the positioning of a movable element of an industrial robot or NC machine tool. An NC unit or a robot controller detects displacement from a movable element that is to be positioned, such as a table, forms a position command regarding a servomechanism, and has a correction circuit (A) which receives quadrant data (BLF) regarding a backlash correction command. When there is a quadrant reversal for each axis of the movable element, frictional torque corresponding to the axis is stored and a torque correction command (FR) corresponding thereto is outputted. A torque command of a fully-closed loop servo system for performing control based on a fed back position detection signal is corrected by the torque correction command. The servomotor control apparatus can be applied to semi-closed loop servo system in which a backlash correction is possible, and not just to a fully-closed loop servo system.

77. 发明授权

US4914370A Servo-control circuit 失效
标题翻译：伺服控制电路
公开(公告)号：US4914370A
公开(公告)日：1990-04-03
申请号：US274147
申请日：1988-11-09
申请人： Keiji Sakamoto , Shunsuke Matsubara
发明人： Keiji Sakamoto , Shunsuke Matsubara
IPC分类号： G05D3/12 , G05B11/36 , G05B13/00 , G05B13/02 , G05B19/19 , G05D3/20
CPC分类号： G05B19/19 , G05D3/20 , G05B2219/41156 , G05B2219/41186
摘要： A servo-control circuit that suppresses an incomplete integration term, which is contained in an integration gain of a velocity feedback loop in a velocity control block (5), when an error between a position signal from a mechanical system and a move command exceeds a predetermined reference value. As a result, a torque command applied to a current control block (6) is controlled so as to minimize a torque which causes overshoot along a static friction characteristic of the mechanical system. Thus, an effect equivalent to that achieved in an analog servo system by non-linearly manipulating a coefficient at the charge and discharge time of a CR time-constant circuit can be realized in a computerized digital servo-control system.
摘要翻译： PCT No.PCT / JP88 / 00408 Sec。 371日期：1988年11月9日 102（e）1988年11月9日PCT PCT申请日1988年4月26日PCT公布。出版物WO88 / 08563 日期1988年11月3日。一种伺服控制电路，其抑制在速度控制块（5）中的速度反馈回路的积分增益中包含的不完整积分项，当来自机械的位置信号系统和移动命令超过预定的参考值。结果，施加到电流控制块（6）的转矩指令被控制成使得沿机械系统的静摩擦特性导致过冲的转矩最小化。因此，可以在计算机化的数字伺服控制系统中实现通过非线性地操纵CR时间常数电路的充放电时间的系数而在模拟伺服系统中实现的效果。

78. 发明授权

US4851754A Velocity control system 失效
标题翻译：速度控制系统
公开(公告)号：US4851754A
公开(公告)日：1989-07-25
申请号：US66628
申请日：1987-06-15
申请人： Keiji Sakamoto , Yukio Toyosawa
发明人： Keiji Sakamoto , Yukio Toyosawa
IPC分类号： B23Q15/12 , G05B17/02 , G05B19/23 , G05D13/62 , H02P5/00 , H02P23/00
CPC分类号： G05B19/232 , H02P23/16 , G05B2219/41112 , G05B2219/41367 , G05B2219/42055
摘要： A velocity control system in which, when an observer is used to estimate velocity based on position information from a rotary encoder, load torque, which is a cause of a steady-state estimation error, is estimated at the same time and velocity is controlled by using the estimated value. Velocity control of the motor is executed by feeding back the position information from the rotary encoder to an integration element in the I-P controller.
摘要翻译： PCT No.PCT / JP86 / 00527 Sec。 371日期：1987年6月15日 102（e）日期1987年6月15日PCT申请日1986年10月17日PCT公布。出版物WO87 / 02485 日本1987年4月23日。一种速度控制系统，其中当使用观察者基于来自旋转编码器的位置信息来估计速度时，在稳态估计误差的原因下估计负载转矩通过使用估计值来控制相同的时间和速度。通过将位置信息从旋转编码器反馈到I-P控制器中的积分元件来执行电机的速度控制。

79. 发明授权

US4816734A Speed control system 失效
公开(公告)号：US4816734A
公开(公告)日：1989-03-28
申请号：US82633
申请日：1987-08-20
申请人： Mitsuo Kurakake , Keiji Sakamoto
发明人： Mitsuo Kurakake , Keiji Sakamoto
IPC分类号： H02P5/00 , G05B11/32 , G05B13/04 , G05B19/19 , G05D13/62 , H02P23/00 , H02P29/00 , G05B5/01
CPC分类号： G05B11/32 , H02P23/16
摘要： A servo control system has a first integrator to which the speed of a servomotor is fed back and a second integrator to which the speed of a mechanical load of low rigidity is fed back. The speed of the servomotor and the speed of the mechanical load driven by the servomotor are simultaneously reflected at a prescribed ratio on a transfer function of the servo control system, whereby appropriate servo control is made possible for the mechanical load to achieve speed control having a quick response and stability.

80. 发明授权

US4703245A Method and apparatus for controlling permanent magnet synchronous motor by using pulse width modulation 失效
标题翻译：通过脉宽调制控制永磁同步电机的方法和装置
公开(公告)号：US4703245A
公开(公告)日：1987-10-27
申请号：US811840
申请日：1985-12-12
申请人： Keiji Sakamoto , Toshio Kobayashi
发明人： Keiji Sakamoto , Toshio Kobayashi
IPC分类号： H02P27/06 , H02P6/06 , H02P25/02 , H02P5/40
CPC分类号： H02P25/03 , H02P25/024
摘要： A method and apparatus for controlling a permanent magnet synchronous motor (M), wherein an inverter (4) is controlled in response to PWM signals (PA-PF) obtained by comparing a reference carrier wave (VA) with signals representing differences between armature winding current command signals (RTC, STC, TTC) of the respective phases and detected armature currents (IR, IS, IT).The degree of saturation of the difference signals defined in association with a peak value of the reference carrier wave (VA) is detected. The phases of the current command signals (RTC, STC, TTC) are changed from those which provide an orthogonal relation between a resultant armature current and a main flux of a magnetic field.
摘要翻译： PCT No.PCT / JP85 / 00207 Sec。 371日期1985年12月12日第 102（e）1985年12月12日日期PCT提交1985年4月16日PCT公布。出版物WO85 / 04993 日期：1985年11月7日。一种用于控制永磁同步电动机（M）的方法和装置，其中响应通过比较参考载波（VA）获得的PWM信号（PA-PF）来控制逆变器（4）信号表示各相的电枢绕组电流指令信号（RTC，STC，TTC）与检测到的电枢电流（IR，IS，IT）之间的差异。检测与参考载波（VA）的峰值相关联地定义的差分信号的饱和度。电流指令信号（RTC，STC，TTC）的相位从提供所得到的电枢电流和磁场的主通量之间的正交关系的相位改变。

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