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11. 发明授权

US07869232B2 Electric power converter suppressing output voltage variation due to input voltage fluctuation 有权
标题翻译：电力转换器抑制输入电压波动引起的输出电压变化
公开(公告)号：US07869232B2
公开(公告)日：2011-01-11
申请号：US11842988
申请日：2007-08-22
申请人： Koichiro Nagata , Toshiaki Okuyama , Shigetoshi Okamatsu , Koichi Miyazaki
发明人： Koichiro Nagata , Toshiaki Okuyama , Shigetoshi Okamatsu , Koichi Miyazaki
IPC分类号： H02M5/458 , H02M7/5395
CPC分类号： H02P21/0003
摘要： An electric power converter apparatus having a function of converting a power source voltage into an AC voltage having an arbitrary frequency and maintaining an output voltage constant even on the power source variation, in which the electric power converter apparatus decreases the output voltage when the output voltage drops to equal to or less than a predetermined value, afterward, increases the output voltage in response to a predetermined rate of change when the power source voltage rises.
摘要翻译：一种具有将电源电压转换成具有任意频率的交流电压并且即使在电力变化时也保持输出电压恒定的功能的电力转换装置，其中电力变换装置在输出电压下降到等于或小于预定值，然后当电源电压上升时响应于预定变化率增加输出电压。

12. 发明授权

US07545116B2 Driver for induction motor and method of driving the same 有权
标题翻译：感应电动机驱动器及其驱动方法
公开(公告)号：US07545116B2
公开(公告)日：2009-06-09
申请号：US11626941
申请日：2007-01-25
申请人： Koichiro Nagata , Toshiaki Okuyama , Kouki Yamamoto , Hiroyuki Tomita
发明人： Koichiro Nagata , Toshiaki Okuyama , Kouki Yamamoto , Hiroyuki Tomita
IPC分类号： H02P27/04
CPC分类号： H02P21/09 , H02P23/20 , H02P29/032
摘要： An object of the present invention is to provide a driver for an induction motor which performs an operation at an acceleration suitable for the magnitude of a load and is excellent in efficiency, without an acceleration failure. The driver for an induction motor includes a slip frequency estimate value arithmetic operation section 15 for arithmetically operating a slip frequency ωs^ of an induction motor 12, and a maximum torque generation slip arithmetic operation section 16 for arithmetically operating a slip frequency ωsmax at which a maximum torque is generated. When the slip frequency ωs^ exceeds a predetermined value ωsmaxTH (=0.9 ωsmax, etc.) corresponding to the slip frequency ωsmax at which the maximum torque is generated, a speed change rate arithmetic operation section 17 and a speed change rate correcting section 18 reduce a rate of increase in a speed command ωr*. In addition, when the slip frequency approaches the maximum torque generation slip frequency too closely, the load concerned is judged to be overloaded, and an alarm is generated.
摘要翻译：本发明的目的是提供一种用于感应电动机的驱动器，其以适合于负载大小的加速度进行操作，并且效率优异，而没有加速失效。用于感应电动机的驱动器包括用于算术地操作感应电动机12的转差频率ω的滑差频率估计值算术运算部15和用于算术运算转差频率ωmaxmax的最大转矩产生滑差算术运算部16，产生最大扭矩。当滑差频率ωmax超过与产生最大转矩的转差频率ωmax最大对应的预定值ωmaxmax（=0.9ωmaxmax等）时，速度变换率算术运算部17和变速率校正部18减少速度指令ω*的增加率。此外，当滑差频率接近最大转矩产生滑差频率时，判断为负载过大，产生报警。

13. 发明授权

US07378984B2 Audio visual system 有权
标题翻译：视听系统
公开(公告)号：US07378984B2
公开(公告)日：2008-05-27
申请号：US10732305
申请日：2003-12-11
申请人： Hidekazu Suzuki , Yutaka Nio , Masazumi Yamada , Koichiro Nagata
发明人： Hidekazu Suzuki , Yutaka Nio , Masazumi Yamada , Koichiro Nagata
IPC分类号： H04N7/173
CPC分类号： H04B1/202 , H04N5/44 , H04N5/765 , H04N5/85 , H04N21/4122 , H04N21/42204 , H04N21/42684 , H04N21/47
摘要： On a display (100) end, maker codes and device codes are read from all STBs (110˜112) connected to the display (100) to create a connected-device table. When a user presses a button on a remote controller, the display receives a remote control code outputted from the remote controller, searches the connected-device table for a maker code and a device code that match the maker code and the device code included in the remote control code, controls a selector (105) so that a reception interface that is connected to an STB whose maker code and device code match those included in the remote control code is connected to a display section (102), thereby to display AV data transmitted from the STB on the display section (102).
摘要翻译：在显示器（100）端，从连接到显示器（100）的所有STB（110〜112）读取制造商代码和设备代码，以创建连接的设备表。当用户按下遥控器上的按钮时，显示器接收从遥控器输出的遥控代码，在连接的设备表中搜索与制造商代码和设备代码相匹配的制造商代码和设备代码，控制选择器（105），使得连接到其制造者代码和设备代码与包括在遥控代码中的代码相匹配的STB的接收接口连接到显示部分（102），从而显示AV数据在显示部（102）上从STB发送。

14. 发明授权

US06611125B2 Method for calculating inertia moment and driver for electric motor 失效
标题翻译：计算电机惯性矩和驱动器的方法
公开(公告)号：US06611125B2
公开(公告)日：2003-08-26
申请号：US09791680
申请日：2001-02-26
申请人： Koichiro Nagata , Toshiaki Okuyama , Hiroshi Fujii , Shigetoshi Okamatsu
发明人： Koichiro Nagata , Toshiaki Okuyama , Hiroshi Fujii , Shigetoshi Okamatsu
IPC分类号： H02P528
CPC分类号： H02P21/06
摘要： An electric motor is rotated at a velocity &ohgr;1. After that, during &Dgr;t12 seconds, the 1st acceleration is executed at a rate (&ohgr;2−&ohgr;1)/&Dgr;t12. During this acceleration, the torque &tgr;m is calculated so as to execute the time integration. After the lapse of &Dgr;t12, the integrated result is stored. Next, the velocity is set to be &ohgr;3. After that, during &Dgr;t34 seconds, the 2nd acceleration is executed at a rate (&ohgr;4−&ohgr;3)/&Dgr;t34. At the 2nd acceleration, although the integration-starting and the integration-terminating velocities are each equal to those at the 1st acceleration, the acceleration rate is modified (&ohgr;3=&ohgr;1, &ohgr;4=&ohgr;2, &Dgr;t12≠&Dgr;t34). During this acceleration, the torque &tgr;m is calculated so as to execute the time integration, after the lapse of &Dgr;t34, storing the integrated result. The inertia J is calculated using the 1st and 2nd integrated results.
摘要翻译：电动机以速度ω1旋转。之后，在DELTA12秒期间，第一加速度以速率（ω2-ω1）/ DELTAt12执行。在该加速期间，计算转矩taum以便执行时间积分。经过DELTAt12后，存储了积分结果。接下来，将速度设为ω3。之后，在DELTA34秒期间，以速率（ω4-ω3）/ DELTAt34执行第二加速度。在第二加速度下，虽然积分开始和积分终止速度均等于第一加速度时的加速度，但是加速度被修改（ω=ω，ω，ω=ω，DELTAt12，ΔTATA34）。在该加速期间，计算转矩taum，以便在DELTAt34经过DELTAt34之后执行时间积分，从而存储积分结果。使用第1和第2综合结果计算惯性J。

15. 发明授权

US6008842A Protective circuit for the CRT and lens 失效
标题翻译： CRT和镜头的保护电路
公开(公告)号：US6008842A
公开(公告)日：1999-12-28
申请号：US844238
申请日：1997-04-18
申请人： Koichiro Nagata
发明人： Koichiro Nagata
IPC分类号： G09G1/00 , H04N5/57 , H04N5/59 , H04N5/68 , H04N5/74 , H04N9/31
CPC分类号： H04N5/74 , H04N5/59 , H04N9/31 , H04N5/57 , H04N5/68
摘要： A protective circuit and a signal processor for a three-CRT projection TV for preventing CRT burnout, deterioration of luminous characteristics, and damage to lenses by heat. Each CRT beam current detection circuit detects the beam current of each CRT. A state of the video image is predicted based on the detected beam current values and their duration. A microcomputer determines a control voltage for controlling the contrast based on the state of the video image, detected values, and their duration. The contrast is thus controlled by a control signal output to a video control circuit which controls the beam current.
摘要翻译：用于三CRT投影电视的保护电路和信号处理器，用于防止CRT烧坏，发光特性的劣化以及通过热量损坏透镜。每个CRT束电流检测电路检测每个CRT的束电流。基于检测到的束电流值及其持续时间来预测视频图像的状态。微机基于视频图像的状态，检测值及其持续时间来确定用于控制对比度的控制电压。因此，通过输出到控制电流的视频控制电路的控制信号来控制对比度。

16. 发明授权

US5017364A Paste-like dentifrice composition 失效
标题翻译：膏状洁牙剂组合物
公开(公告)号：US5017364A
公开(公告)日：1991-05-21
申请号：US422460
申请日：1989-10-17
申请人： Hiromi Mitsutake , Hideomi Saitoh , Koichiro Nagata
发明人： Hiromi Mitsutake , Hideomi Saitoh , Koichiro Nagata
IPC分类号： A61K8/44 , A61Q11/00
CPC分类号： A61Q11/00 , A61K8/44
摘要： Herein is disclosed a paste-like dentifrice composition containing, as the foaming agent, from 0.1 to 5.0% by weight of highly pure N-long-chain acylglutamate which contains not more than 1.0% by weight of higher fatty acid(s), either in the free form or in the salt form.

17. 发明授权

US08115442B2 Electric motor drive system and electric motor control method 有权
标题翻译：电动机驱动系统及电动机控制方式
公开(公告)号：US08115442B2
公开(公告)日：2012-02-14
申请号：US12359454
申请日：2009-01-26
申请人： Koichiro Nagata , Toshio Katayama
发明人： Koichiro Nagata , Toshio Katayama
IPC分类号： H02P1/24
CPC分类号： H02P5/747 , H02P21/18
摘要： An electric motor drive system having current detecting sections for detecting the currents flowing into electric motors, speed variation calculating sections for calculating the speed variation estimating values for the electric motors in accordance with the motor currents detected by the current detecting sections and the current command values for the motors corresponding to the detected currents and a speed uniformizing voltage compensating section for delivering the values that serve to compensate the amplitudes of the voltages applied to the electric motors in such a manner that the speed variation estimating values calculated by the speed variation calculating sections become equal to a predetermined value.
摘要翻译：一种电动机驱动系统，其具有用于检测流入电动机的电流的电流检测部分，用于根据由电流检测部分检测的电动机电流计算电动机的速度变化估计值的速度变化计算部分和当前指令值对于与检测到的电流相对应的电动机，以及速度均匀化电压补偿部分，用于传送用于补偿施加到电动机的电压幅度的值，使得由速度变化计算部分计算的速度变化估计值变得等于预定值。

18. 发明申请

US20110292700A1 POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING THEREOF 有权
标题翻译：电力转换装置及其控制方法
公开(公告)号：US20110292700A1
公开(公告)日：2011-12-01
申请号：US13147807
申请日：2010-02-17
申请人： Yoichiro Arakawa , Koichiro Nagata , Yuusuke Arao , Shigehisa Aoyagi
发明人： Yoichiro Arakawa , Koichiro Nagata , Yuusuke Arao , Shigehisa Aoyagi
IPC分类号： H02M7/44
CPC分类号： H02M7/53871 , H02M1/12 , H02M1/15 , H02M7/5395 , H02M2001/0009
摘要： In a power conversion device that includes a PWM converting means for generating a PWM pulse by comparing three-phase voltage commands with a triangular wave carrier signal, a power converter for converting between a DC voltage and a three-phase AC voltage by driving a switching element according to the PWM pulse, a current detecting means for detecting a pulsed current flowing through a DC bus conductor of a main circuit, and a voltage command correcting means for correcting three-phase voltage commands, which corrects the three-phase voltage commands so that a line voltage value between the maximum phase and an intermediate phase and a line voltage value between the intermediate phase and the minimum phase are each equal to or larger than a predetermined value, the maximum phase, intermediate phase, and minimum phase being determined in correspondence to momentary values of the three-phase voltage commands arranged in descending order, if the voltage command is outside an allowable upper limit or lower limit, not only the voltage command for the maximum phase and/or the minimum phase but also the voltage command for the intermediate phase are corrected.Accordingly, the inability to detect a current due to a restriction imposed by an upper limit or a lower limit for an output voltage is eliminated, and highly precise control of the power conversion device is achieved independently of the situation.
摘要翻译：一种电力转换装置，其特征在于，包括：PWM转换装置，用于通过将三相电压指令与三角波载波信号进行比较来产生PWM脉冲;功率转换器，用于通过驱动开关转换直流电压和三相交流电压元件，用于检测流过主电路的直流总线导体的脉冲电流的电流检测装置，以及用于校正三相电压指令的三相电压指令的电压指令校正装置，其校正三相电压指令最大相和中间相之间的线电压值和中间相和最小相之间的线电压值均等于或大于预定值，最大相位，中间相位和最小相位在对应于以降序排列的三相电压命令的瞬时值，如果电压指令在允许的u之外 pper极限或下限，不仅对最大相位和/或最小相位的电压指令以及中间相位的电压指令进行校正。因此，消除了由于对输出电压的上限或下限引起的限制而不能检测电流，并且独立于这种情况实现了电力转换装置的高精度控制。

19. 发明申请

US20080169783A1 INDUCTION MOTOR CONTROLLER 有权
标题翻译：感应电动机控制器
公开(公告)号：US20080169783A1
公开(公告)日：2008-07-17
申请号：US11843686
申请日：2007-08-23
申请人： KOUKI YAMAMOTO , Toshiaki Okuyama , Hiroyuki Tomita , Yoshitaka Iwaji , Koichiro Nagata
发明人： KOUKI YAMAMOTO , Toshiaki Okuyama , Hiroyuki Tomita , Yoshitaka Iwaji , Koichiro Nagata
IPC分类号： H02P27/08
CPC分类号： H02P21/09 , H02P21/16 , H02P2207/01
摘要： The present invention provides an induction motor controller which includes: a circuit for generating a d-axis current reference signal from a d-axis current command value and a periodically varying periodic signal; a d-axis current controller for controlling a d-axis motor current flowing through an induction motor to be controlled to match the d-axis current reference signal; parameter determining means for calculating and determining a motor parameter of the induction motor based on a deviation of the d-axis motor current from the d-axis current reference signal, and controlling a voltage applied to the induction motor using a compensation voltage calculated from the calculated and determined motor parameter, in which a control parameter for controlling the induction motor is set based on the calculated and determined motor parameter.
摘要翻译：本发明提供一种感应电动机控制器，其包括：用于根据d轴电流指令值和周期性变化的周期信号产生d轴电流参考信号的电路; d轴电流控制器，用于控制流过感应电动机的d轴电动机电流以被控制以匹配d轴电流参考信号; 参数确定装置，用于基于d轴电动机电流与d轴电流参考信号的偏差来计算和确定感应电动机的电动机参数，并且使用从所述d轴电流参考信号计算的补偿电压来控制施加到感应电动机的电压计算和确定的电动机参数，其中基于所计算和确定的电动机参数来设定用于控制感应电动机的控制参数。

20. 发明授权

US06392695B1 Image display device 失效
标题翻译：图像显示装置
公开(公告)号：US06392695B1
公开(公告)日：2002-05-21
申请号：US09062290
申请日：1998-04-17
申请人： Toru Watamoto , Koichiro Nagata
发明人： Toru Watamoto , Koichiro Nagata
IPC分类号： H04N320
CPC分类号： H04N3/20 , H04N5/445 , H04N5/63 , H04N5/765
摘要： An image display device having (a) a DVD or a CD, (b) a television receiver, (c) a display for displaying an image from the DVD and the television receiver, (d) a screen burn-in preventer, and (e) a deterioration protector for protecting the display device from deterioration. The screen burn-in preventer discontinues reproduction from the DVD when an image reproduced of the DVD becomes stationary, and the stationary state continues for the predetermined time period. The deterioration protector discontinues reproduction from the DVD at a second predetermined time after the television receiver is turned on while an image reproduced from the DVD is displayed by the display.
摘要翻译：一种具有（a）DVD或CD的图像显示装置，（b）电视接收机，（c）用于从DVD和电视接收机显示图像的显示器，（d）屏幕老化防护器，和 e）用于保护显示装置不劣化的劣化保护器。当DVD再现的图像变得静止时，屏幕老化防止器停止从DVD的再现，并且静止状态持续预定时间段。劣化保护器在电视接收机开启之后的第二预定时间从DVD停止再现，而从DVD再现的图像被显示器显示。

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