公开(公告)号：US08878477B2

公开(公告)日：2014-11-04

申请号：US13738213

申请日：2013-01-10

申请人： Kosuke Nakano ,  Tetsuya Kojima ,  Satoshi Azuma ,  Isao Kezobo ,  Ryuichi Takiguchi

发明人： Kosuke Nakano ,  Tetsuya Kojima ,  Satoshi Azuma ,  Isao Kezobo ,  Ryuichi Takiguchi

IPC分类号： H02P1/00 ,  H02P27/08 ,  H02P5/00

CPC分类号： H02K11/001 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P27/08 ,  H02P29/0241

摘要： An electric motor driving apparatus having a failure detection circuit includes: a bridge circuit driving an electric motor; a PWM control circuit generating voltage instruction for driving the electric motor; a PWM signal generation circuit generating a PWM signal; a DC current detection circuit detecting DC current of the bridge circuit; a phase current calculation circuit calculating output phase current of the bridge circuit, based on the DC current and PWM signal; and a failure detection circuit detecting failure of the DC current detection circuit. The failure detection circuit determines failure of the DC current detection circuit from the DC current detected values in a zero voltage period in which the high-potential-side arms of the bridge circuit are all ON and in a zero voltage period in which the low-potential-side arms are all ON.

摘要翻译： 具有故障检测电路的电动机驱动装置包括：驱动电动机的桥式电路; 产生用于驱动电动机的电压指令的PWM控制电路; 产生PWM信号的PWM信号产生电路; 直流电流检测电路，检测桥式电路的直流电流; 基于直流电流和PWM信号计算桥式电路的输出相电流的相电流计算电路; 以及检测直流电流检测电路的故障的故障检测电路。 故障检测电路根据桥电路的高电位侧臂全部为ON的零电压期间的直流电流检测值和低电压周期的零电压期间，确定直流电流检测电路的故障， 潜在手臂全部打开。

公开(公告)号：US09331623B2

公开(公告)日：2016-05-03

申请号：US14369828

申请日：2013-01-11

申请人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

发明人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

IPC分类号： H02P27/00 ,  H02P25/02 ,  B62D5/04

CPC分类号： H02P25/026 ,  B62D5/046 ,  H02P2207/05

摘要： The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.

摘要翻译： 本发明提供一种无刷电动机，其中可以提高电压利用率，从而可以提高电动机的转矩和输出，并且还提供了一种用于无刷电动机的驱动方法。 无刷电动机包括由具有多相电枢绕组的电枢铁心构成的电枢和由具有多个永久磁铁的场极铁芯构成的场极。 在预定的相位差条件和振幅条件下，在电压的1阶基波上叠加有至少5次谐波分量的电压，以便在施加的电压峰值上增加施加电压的1阶基波峰值 ，被施加到电枢绕组。

公开(公告)号：US20140340015A1

公开(公告)日：2014-11-20

申请号：US14369828

申请日：2013-01-11

申请人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

发明人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

IPC分类号： H02P25/02

CPC分类号： H02P25/026 ,  B62D5/046 ,  H02P2207/05

摘要： The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.

摘要翻译： 本发明提供一种无刷电动机，其中可以提高电压利用率，从而可以提高电动机的转矩和输出，并且还提供了一种用于无刷电动机的驱动方法。 无刷电动机包括由具有多相电枢绕组的电枢铁心构成的电枢和由具有多个永久磁铁的场极铁芯构成的场极。 在预定的相位差条件和振幅条件下，在电压的1阶基波上叠加有至少5次谐波分量的电压，以便在施加的电压峰值上增加施加电压的1阶基波峰值 ，被施加到电枢绕组。

公开(公告)号：US09130481B2

公开(公告)日：2015-09-08

申请号：US13612181

申请日：2012-09-12

申请人： Kosuke Nakano ,  Tetsuya Kojima

发明人： Kosuke Nakano ,  Tetsuya Kojima

IPC分类号： H02P27/04 ,  H02P6/14 ,  H02M7/5387 ,  H02P27/08 ,  B60L3/00 ,  B60L15/00

CPC分类号： H02M7/53875 ,  B60L3/0061 ,  B60L15/007 ,  H02P27/08 ,  Y02T10/644 ,  Y02T10/645

摘要： In a power converting apparatus having a plurality of phases on an AC side and configured to perform conversion between DC power and AC power, a current detector detects currents flowing through a DC source line through which a plurality of phase currents commonly flow. A control unit sets a current detection period and a succeeding current control period in each successive control cycle. Using first gate signals based on reference gate signals for PWM control, the control unit calculates values of the individual phase currents from the first gate signals and the detected currents during the current detection period. Then, during the current control period, the control unit performs PWM control using phase voltage commands generated by correcting phase voltage target values so as to cancel out voltage errors that occur during the current detection period.

摘要翻译： 在具有交流侧多相的电力转换装置中，电流检测器检测流经多个相电流通过的直流电源线的电流。 控制单元在每个连续的控制周期中设置电流检测周期和后续电流控制周期。 使用基于用于PWM控制的参考栅极信号的第一栅极信号，控制单元在当前检测周期期间从第一栅极信号和检测到的电流计算各个相电流的值。 然后，在当前控制期间，控制单元使用通过校正相电压目标值而产生的相位电压指令来执行PWM控制，以抵消在当前检测周期期间发生的电压误差。

公开(公告)号：US20140232314A1

公开(公告)日：2014-08-21

申请号：US14346030

申请日：2011-11-29

申请人： Yosuke Hachiya ,  Tetsuya Kojima ,  Shoji Adachi

发明人： Yosuke Hachiya ,  Tetsuya Kojima ,  Shoji Adachi

IPC分类号： H02P21/00

CPC分类号： H02P21/0035 ,  H02P21/16

摘要： A control device for rotary machine includes: a voltage instruction generation section for generating a voltage instruction; a voltage application section for applying voltage to a rotary machine based on the voltage instruction; a current detection section for detecting rotary machine current of the rotary machine; and an inductance calculation section for calculating an inductance of the rotary machine from the voltage instruction and the rotary machine current. The voltage instruction generation section generates voltage instructions of constant DC voltages. The voltage application section applies voltages to the rotary machine based on the voltage instructions. The inductance calculation section calculates the inductance from a voltage instruction for measurement arbitrarily selected from the voltage instructions, and the rotary machine currents detected by the current detection section before and after application of the voltage instruction for measurement.

摘要翻译： 旋转机械的控制装置包括：电压指令生成部，生成电压指令; 电压施加部，其基于所述电压指令向旋转机器施加电压; 用于检测旋转机械的旋转机器电流的电流检测部分; 以及电感计算部，用于根据电压指令和旋转电机电流计算旋转机的电感。 电压指令生成部生成恒定直流电压的电压指令。 电压施加部分基于电压指令向旋转机器施加电压。 电感计算部根据从电压指令任意选择的测量用电压指令和由施加电压指令进行测量之前和之后由电流检测部分检测的旋转电机，计算电感。

公开(公告)号：US08711293B2

公开(公告)日：2014-04-29

申请号：US12974749

申请日：2010-12-21

申请人： Tetsuo Fukami ,  Shigesumi Araki ,  Tetsuya Kojima ,  Toshiyuki Higano ,  Kenji Nakao

发明人： Tetsuo Fukami ,  Shigesumi Araki ,  Tetsuya Kojima ,  Toshiyuki Higano ,  Kenji Nakao

IPC分类号： G02F1/1335 ,  G02F1/1343

CPC分类号： G02B27/2264 ,  G02F1/1395 ,  H04N13/341 ,  H04N13/359 ,  H04N13/398 ,  H04N2213/008

摘要： In one embodiment, a pair of liquid crystal shutter glasses include a first liquid crystal shutter and a second liquid crystal shutter. The first and second liquid crystal shutters are switched to a transmissive state by turns. The respective first and second liquid crystal shutters include a first electrode substrate and a second electrode substrate opposing the first electrode substrate. An OCB (Optically Compensated Bend) mode liquid crystal layer is held between the first and second electrode substrates. The first electrode substrate includes a first electrode and a second electrode arranged adjacent to the first electrode. The first and second electrodes respectively include a side opposing each other and a plurality of projecting portions provided to the respective opposing sides of the first and second electrodes alternately.

摘要翻译： 在一个实施例中，一对液晶快门眼镜包括第一液晶快门和第二液晶快门。 第一和第二液晶快门轮流切换到透射状态。 相应的第一和第二液晶快门包括与第一电极基板相对的第一电极基板和第二电极基板。 OCB（光学补偿弯曲）模式液晶层保持在第一和第二电极基板之间。 第一电极基板包括与第一电极相邻布置的第一电极和第二电极。 第一电极和第二电极分别包括彼此相对的一侧和交替地设置到第一和第二电极的相应相对侧的多个突出部分。

公开(公告)号：US08547486B2

公开(公告)日：2013-10-01

申请号：US12772465

申请日：2010-05-03

申请人： Tetsuya Kojima ,  Toshiyuki Higano ,  Shigesumi Araki ,  Tetsuo Fukami ,  Kazuhiro Nishiyama

发明人： Tetsuya Kojima ,  Toshiyuki Higano ,  Shigesumi Araki ,  Tetsuo Fukami ,  Kazuhiro Nishiyama

IPC分类号： G02F1/1335

CPC分类号： G02B27/0093 ,  G02F1/133707 ,  G02F1/1395

摘要： A liquid crystal shutter includes a first support substrate having a first electrode and a second support substrate having a second electrode opposite to the first electrode. A liquid crystal layer is sandwiched between the first and second electrodes so as to have a switching region. The switching region becomes a bend alignment state from a splay alignment state when a voltage is applied to the liquid crystal layer. A nucleus region formation portion is arranged on the first support substrate to form a nucleus region in the switching region corresponding to the nucleus region formation portion in the liquid crystal layer, in which the splay alignment is more stable than in the switching region.

摘要翻译： 液晶快门包括具有第一电极的第一支撑基板和具有与第一电极相对的第二电极的第二支撑基板。 液晶层夹在第一和第二电极之间以具有开关区域。 当对液晶层施加电压时，开关区域从喷射取向状态变为弯曲取向状态。 在第一支撑基板上配置有核区域形成部，在与液晶层中的核区域形成部对应的开关区域中形成核区域，其中喷射取向比开关区域更稳定。

公开(公告)号：US07158162B2

公开(公告)日：2007-01-02

申请号：US11003843

申请日：2004-12-06

申请人： Tetsuya Kojima

发明人： Tetsuya Kojima

IPC分类号： G03D13/00

CPC分类号： B41J2/365

摘要： A heating control method of a heat development recording device includes a heating step in which after start-up of the heat development recording device, a heat development section is heated to a target temperature by a plate heater, a temperature holding step in which after the temperature of the plate heater has reached the target temperature, the target temperature is held for a prescribed time, and a step in which after the target temperature has been held for the prescribed time, the heat development section is set up in the recordable state, wherein after start-up of the heat development recording device, operation history information from the time of the last start-up is collected; and after reaching the target temperature at the time of the present start-up, a temperature holding time is determined depending upon the operation history information.

摘要翻译： 热显影记录装置的加热控制方法包括加热步骤，其中在热显影记录装置启动之后，通过板式加热器将热显影部分加热到目标温度，其中温度保持步骤 板加热器的温度达到目标温度，目标温度保持规定时间，并且在目标温度保持规定时间之后，将热量显现部设定为可记录状态， 其中，在所述热显影记录装置启动之后，收集从上次启动时起的操作历史信息; 并且在当前启动时达到目标温度之后，根据操作历史信息确定温度保持时间。

公开(公告)号：US20060181602A1

公开(公告)日：2006-08-17

申请号：US11401845

申请日：2006-04-12

申请人： Tetsuya Kojima ,  Nobuyuki Torisawa

发明人： Tetsuya Kojima ,  Nobuyuki Torisawa

IPC分类号： B41J2/375

CPC分类号： G03D13/002

摘要： A thermal development recording apparatus has a recording portion for exposing a thermal development recording material to form a latent image, a thermal-developing portion for heating the thermal development recording material to execute a thermal development, and a cooling portion for cooling the thermal development recording material after the thermal development, which further has a temperature adjusting portion for adjusting a temperature of the thermal-developing portion based on temperature of the cooling portion. Therefore, the thermal development recording apparatus can maintain a density constant independent of the number of sheets of thermal development recording materials and also maintaining a color tone, whose change cannot be suppressed by adjusting an amount of exposure, constant to thereby stabilize both the density and the color tone.

公开(公告)号：US06914621B2

公开(公告)日：2005-07-05

申请号：US10631015

申请日：2003-07-31

申请人： Tetsuya Kojima

发明人： Tetsuya Kojima

IPC分类号： B41J2/52 ,  H04N1/401 ,  B41J2/47

CPC分类号： H04N1/4015

摘要： Upon adjustment before the adjustment of a heat development recording apparatus, a continuous recording pattern is outputted. The recording density of this continuous recording pattern is measured by a recording density measuring unit. A shading correction table for each pixel is formed and the shading correction table is registered in a storing unit. On the other hand, after the heat development recording apparatus is shipped without mounting the recording density measuring unit thereon, a discrete recording pattern is outputted. The recording density of the discrete recording pattern is measured for each discrete recording position to generate a shading correction table. The shading correction table registered in the storing unit is updated. Therefore, it is possible to reduce a cost while a good shading correction function is ensured.

摘要翻译： 在调整热显影记录装置之前进行调整，输出连续记录图案。 该连续记录图案的记录密度由记录密度测量单元测量。 形成每个像素的阴影校正表，并且将阴影校正表登记在存储单元中。 另一方面，在没有安装记录密度测量单元的情况下运送热显影记录装置之后，输出离散的记录图案。 对于每个离散记录位置测量离散记录图案的记录密度，以生成阴影校正表。 登录在存储单元中的阴影校正表被更新。 因此，可以在确保良好的阴影校正功能的同时降低成本。