公开(公告)号：US5300872A

公开(公告)日：1994-04-05

申请号：US838336

申请日：1992-02-20

申请人： Tsunehiro Endo ,  Shizuo Takahashi ,  Masaya Taniguchi ,  Hiroshi Maruyama ,  Seiji Ishida

发明人： Tsunehiro Endo ,  Shizuo Takahashi ,  Masaya Taniguchi ,  Hiroshi Maruyama ,  Seiji Ishida

IPC分类号： H02M7/5387 ,  H02P5/40

CPC分类号： H02M7/53873

摘要： Inverter control method and apparatus which are immune to the influence of load disturbance and detection noise and permit stable minimization control of motor current, in order to attain high efficiency of an AC motor and of an inverter adapted to drive the same. A memory group is provided having a plurality of sets of memories for storage of data pieces representative of exciting current commands standing for manipulated variables and data pieces representative of motor currents standing for controlled variables. An upper limit value (IDUP) and a lower limit value (IDLW) defining a fluctuation region of the exciting current command are determined so that an exciting current command data piece corresponding to a motor current data piece which is the smallest of all the current data pieces in the memory group falls within the fluctuation region. The fluctuation region is determined so as to minimize the motor current, the exciting current command being fluctuated within the fluctuation region.

摘要翻译： 逆变器控制方法和装置，免受负载扰动和检测噪声的影响，并允许电动机电流的稳定最小化控制，以获得AC电动机和适于驱动电动机的逆变器的高效率。 提供了具有多组存储器的存储器组，用于存储表示用于操纵变量的激励电流指令的数据片段和代表受控变量的电动机电流的数据片段。 确定限定励磁电流指令的波动区域的上限值（IDUP）和下限值（IDLW），使得对应于作为所有当前数据中最小的电动机电流数据的励磁电流指令数据段 存储器组中的片段落在波动区域内。 确定波动区域以使电动机电流最小化，励磁电流指令在波动区域内波动。

公开(公告)号：US5000843A

公开(公告)日：1991-03-19

申请号：US417472

申请日：1989-10-05

申请人： Eitaro Kumazawa ,  Takao Hatai ,  Seiji Ishida ,  Atushi Baba ,  Masahiko Takahashi

发明人： Eitaro Kumazawa ,  Takao Hatai ,  Seiji Ishida ,  Atushi Baba ,  Masahiko Takahashi

IPC分类号： C12P1/00 ,  B01D61/22 ,  C02F1/44 ,  C12M1/00 ,  C12M1/12 ,  C12M1/36 ,  C12M3/06 ,  G01N9/12

CPC分类号： C12M47/10 ,  B01D61/22

摘要： There is provided between a concentrate tank and a membrane filter a circulating line which consists of a feed line and a return line. It is also possible to use an ultrafilter as the membrane filter. There is provided a leveling tube connected by respective pipes to the concentrate tank at top and bottom portions thereof, respectively. A buoy floats within the leveling tube and a position of this buoy is detected by means of transparency of the leveling tube itself or photosensors in order to detect a degree of concentration of the culture fluid progressing within the concentrate tank. There may be provided multi-stage circulating lines each connecting the associated concentrate tank to the associated membrane filter so that the culture fluid can be transferred during the process of concentration from the stage of the largest volume treatment to the state of the least volume treatment in order to concentrate the culture fluid more efficiently.

公开(公告)号：US20120090499A1

公开(公告)日：2012-04-19

申请号：US13378393

申请日：2009-06-15

申请人： Motomi Shimada ,  Takashi Kaneko ,  Kento Mochizuki ,  Seiji Ishida

发明人： Motomi Shimada ,  Takashi Kaneko ,  Kento Mochizuki ,  Seiji Ishida

IPC分类号： B61C3/00 ,  B60L11/00 ,  B60L11/18 ,  B60L9/02

CPC分类号： B61C3/02 ,  B60L7/16 ,  B60L9/00 ,  B60L9/28 ,  B60L11/02 ,  B60L11/1801 ,  B60L2200/26 ,  B60L2260/26 ,  B61C7/04 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7077 ,  Y02T30/12 ,  Y02T30/16

摘要： Provided is a high mobility railroad vehicle system configured to reciprocally carry out a direct drive between a non-electrically driven section and an electrically driven section without installing new facilities such as oil supply equipment and without considering distinction between the non-electrically and electrically driven sections. A railroad vehicle system is provided with an overall control apparatus to respectively control an external electric power supply means, an internal electric power supply means, an electricity storage means, electric power conversion means and a motor driving means. The railroad vehicle system judges or previously notifies as to whether the present driving railroad section is the electrically driven section or non-electrically driven section in accordance with driving position information received from a position information generation means such as a ground facility on a railroad equipped outside of the vehicle and a global positioning system (GPS). The system cuts off from an external electric power source in the non-electrically driven section and carries out a smooth shifting control in order to connect to the external electric power source in the electrically driven section.

摘要翻译： 提供了一种高移动性铁路车辆系统，其构造成在不电气驱动部分和电驱动部分之间往复地执行直接驱动，而不安装诸如供油设备的新设备，并且不考虑非电和电驱动部分之间的区别 。 铁路车辆系统设置有分别控制外部电力供应装置，内部电力供应装置，蓄电装置，电力转换装置和电动机驱动装置的总体控制装置。 铁路车辆系统根据从设置在外部的铁路上的地面设施等位置信息生成单元接收到的驾驶位置信息来判断或事先通知当前的驾驶铁路部分是电动部分还是非电动部分 的车辆和全球定位系统（GPS）。 该系统从非电动部分的外部电源切断，并进行平滑的换档控制，以连接到电动部分中的外部电源。

公开(公告)号：US07920395B2

公开(公告)日：2011-04-05

申请号：US12246174

申请日：2008-10-06

申请人： Seiji Ishida ,  Atsuhiko Nakamura

发明人： Seiji Ishida ,  Atsuhiko Nakamura

IPC分类号： H02M7/521 ,  H02M5/42

CPC分类号： H02M7/53871

摘要： A pulse width modulation method has the steps of operating a second instruction signal so that each of the differences between two or three arbitrary instruction signals in three first instruction signals may become more than the predetermined value, and modulating in pulse width based on the second instruction signal.

摘要翻译： 脉冲宽度调制方法具有以下步骤：操作第二指令信号，使得三个第一指令信号中的两个或三个任意指令信号之间的差异可能变得超过预定值，并且基于第二指令以脉冲宽度进行调制 信号。

公开(公告)号：US07570085B2

公开(公告)日：2009-08-04

申请号：US11624717

申请日：2007-01-19

申请人： Katsumi Ishikawa ,  Yutaka Sato ,  Masahiro Nagasu ,  Seiji Ishida

发明人： Katsumi Ishikawa ,  Yutaka Sato ,  Masahiro Nagasu ,  Seiji Ishida

IPC分类号： H03K3/00

CPC分类号： H03K17/0406 ,  H03K17/168

摘要： A gate driver circuit of a voltage drive type power semiconductor switching device capable of speeding up di/dt and dv/dt even during large-current driving to thereby reduce the switching loss is disclosed. This power semiconductor switching device gate driving circuit includes a drive circuit which applies a drive signal to the gate electrode of the power semiconductor switching device and a measurement unit for measuring a flow current of the power semiconductor switching device. Based on a detected value of the flow current of the power semiconductor switching device, the gate is made variable in mirror voltage thereof.

摘要翻译： 公开了即使在大电流驱动期间能够加快di / dt和dv / dt的电压驱动型功率半导体开关器件的栅极驱动器电路，从而降低开关损耗。 该功率半导体开关元件栅极驱动电路具有向功率半导体开关元件的栅电极施加驱动信号的驱动电路和用于测量功率半导体开关元件的流量的测量单元。 基于功率半导体开关器件的流量电流的检测值，栅极的镜电压可变。

公开(公告)号：US20050202741A1

公开(公告)日：2005-09-15

申请号：US10522833

申请日：2003-07-30

申请人： Tadato Onodera ,  Hisao Nishinaka ,  Mitsuo Tanida ,  Nobuhiro Kuroda ,  Seiji Ishida ,  Takashi Ueda

发明人： Tadato Onodera ,  Hisao Nishinaka ,  Mitsuo Tanida ,  Nobuhiro Kuroda ,  Seiji Ishida ,  Takashi Ueda

IPC分类号： D03D15/00 ,  D03D15/04 ,  D04B1/16

CPC分类号： D04B1/16 ,  D03D1/007 ,  D03D15/00 ,  D03D15/0027 ,  D03D15/0061 ,  D03D15/0077 ,  D03D15/0083 ,  D03D15/04 ,  D10B2201/02 ,  D10B2201/24 ,  D10B2211/02 ,  D10B2331/02 ,  D10B2331/04 ,  D10B2401/022 ,  D10B2401/062 ,  D10B2401/063 ,  D10B2401/13 ,  D10B2401/14 ,  D10B2401/22 ,  Y10T442/3065 ,  Y10T442/3106 ,  Y10T442/3146 ,  Y10T442/3976

摘要： A woven or knit fabric comprising air-jet interlacing spun yarns comprising polyester fibers of low titanium oxide content; a woven or knit fabric comprising air-jet interlacing spun yarns comprising polyester staple fibers obtained by graft polymerization of a hydrophilic compound; a woven or knit fabric comprising air-jet interlacing spun yarns comprising side by side crimped staple fibers; a woven or knit fabric comprising air-jet interlacing spun yarns comprising low-shrinkage staple fibers and copolymerized polyester staple fibers; and a process for producing these. A woven or knit fabric of polyester staple fibers that is bulky, excelling in moisture retention, lightweightness, water absorptivity, quick dryability, etc. and exhibits excellent anti-pilling properties can be obtained.

摘要翻译： 一种编织或针织织物，其包含包含低氧化钛含量的聚酯纤维的喷气交织纺纱; 织造或针织织物，其包含通过亲水化合物的接枝聚合而获得的聚酯短纤维的喷气交织短纤纱; 包括并排压接短纤维的喷气交织短纤纱的机织或针织织物; 包括包含低收缩短纤维和共聚聚酯短纤维的喷气交织短纤纱的机织或针织织物; 以及这些的制造方法。 可以获得体积大，保湿性，轻量化性，吸水性，快干性等优异的抗起球性的聚酯短纤维的编织物或编织物。

公开(公告)号：US06704212B2

公开(公告)日：2004-03-09

申请号：US10222048

申请日：2002-08-16

申请人： Teiichi Furukawa ,  Masahiro Hiraga ,  Hiroyuki Tomita ,  Seiji Ishida ,  Toshiaki Okuyama

发明人： Teiichi Furukawa ,  Masahiro Hiraga ,  Hiroyuki Tomita ,  Seiji Ishida ,  Toshiaki Okuyama

IPC分类号： H02M112

CPC分类号： H02M7/53875 ,  H02M2001/0009

摘要： In calculation 3 phase AC output current Iu, Iv,Iw of an inverter based on the input DC current Idc of the inverter, it is difficult to detect the DC current Idc when the line-to-line voltage pulse width is narrow, thereby the DC current Idc pulse width becomes narrower. The frequency Fc of the carrier wave C is lowered in a phase whose line-to-line voltage is high, thereby the DC current Idc pulse width is set wider. As a result, the current detection is enabled.

摘要翻译： 在逆变器的输入DC电流Idc的逆变器的3相AC输出电流Iu，Iv，Iw的计算中，当线间电压脉冲宽度窄时，难以检测直流电流Idc， 直流电流Idc脉冲宽度变窄。载波C的频率Fc在线间电压高的相位下降，由此使直流电流Idc脉冲宽度变宽。 结果，启用电流检测。

公开(公告)号：US06611124B2

公开(公告)日：2003-08-26

申请号：US09791676

申请日：2001-02-26

申请人： Seiji Ishida

发明人： Seiji Ishida

IPC分类号： H02P528

CPC分类号： H02P21/18 ,  H02P21/16 ,  H02P21/26 ,  H02P2207/01

摘要： An induction motor control apparatus includes a first constant correction unit for correcting primary resistance based on quantity obtained by multiplying quantity of a voltage command from a frequency voltage control unit by the output of a correction unit, the quantity of the voltage command being a result of partial differentiation with the primary resistance; a second constant correction unit for correcting the inductance based on quantity obtained by multiplying quantity of the voltage command, the quantity of the voltage command being a result of partial differentiation with the inductance; and a third constant correction unit for correcting the inductance ratio based on quantity obtained by multiplying quantity of the voltage command, the quantity of the voltage command being a result of partial differentiation with the inductance ratio, suppressing the deterioration of control performance caused by the setting errors.

摘要翻译： 感应电动机控制装置包括：第一恒定校正单元，用于根据通过校正单元的输出将来自频率电压控制单元的电压指令的数量乘以获得的量来校正一次电阻;电压指令的量是由 主要抵抗部分分化; 第二常数校正单元，用于基于通过乘以电压命令获得的量来校正电感，电压命令的量是部分微分的结果与电感; 以及第三恒定校正单元，用于基于通过乘以电压指令获得的数量，作为部分微分的结果的电压指令的电量与电感比率来校正电感比，从而抑制由设置引起的控制性能的劣化 错误。

公开(公告)号：US06556464B2

公开(公告)日：2003-04-29

申请号：US09956257

申请日：2001-09-20

申请人： Keijirou Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

发明人： Keijirou Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

IPC分类号： H02M75387

CPC分类号： H02M1/4233 ,  H02M1/4216 ,  H02M2001/0012 ,  Y02B70/126

摘要： A single-phase PWM converter system in accordance with the present invention employs a sample-and-hold circuit which samples and holds a direct current in the state wherein one of two-phase gate signals of a positive or negative side arm is ON and the other phase is OFF, determines the sign of an output of the sample-and-hold circuit according to the two-phase gate condition, detects a phase current at the input side of the converter, and controls a voltage at the input side of the converter so that the detected current value agrees with a power supply current command. Further, a three-phase PWM converter system in accordance with the present invention detects the effective current and the ineffective current of the power supply current from the direct current, and based on the values, controls the PWM converter so that the sine wave power supply current whose power supply power factor is 1 is provided.

摘要翻译： 根据本发明的单相PWM转换器系统采用采样和保持电路，其采样和保持直流电流，其中正或负侧臂的两相门信号之一为ON， 其他相位为OFF，根据两相门条件确定采样保持电路的输出的符号，检测转换器输入侧的相电流，并控制转换器的输入侧的电压 转换器，使得检测到的电流值与电源电流指令一致。此外，根据本发明的三相PWM转换器系统从直流电流检测电源电流的有效电流和无效电流，并且基于 在该值上，控制PWM转换器，使得提供功率因数为1的正弦波电源电流。

公开(公告)号：US06173762B1

公开(公告)日：2001-01-16

申请号：US08271635

申请日：1994-07-07

申请人： Seiji Ishida ,  Tomio Higo ,  Tetsuo Uchida ,  Masahiro Furukawa ,  Masashi Izumi ,  Kazuhiro Yoshii

发明人： Seiji Ishida ,  Tomio Higo ,  Tetsuo Uchida ,  Masahiro Furukawa ,  Masashi Izumi ,  Kazuhiro Yoshii

IPC分类号： F28F1318

CPC分类号： F28F13/187 ,  F28F1/42 ,  F28F1/422

摘要： A heat exchanger tube for a falling film evaporator has fins provided on the outer periphery of the tube body and extending in a direction transverse or in oblique to the axial direction of the tube. The fins have heights in a range of 0.2 to 0.8 mm. The fins are arranged in a density to have 905 to 1102 in number of fins per 1 m in the axial direction. Grooves formed in the tip end of the fins and extending substantially along the fins, the mutually opposing inner peripheral wall surface of the groove defining an angle within a range of 70° to 150°. Cut-outs formed in the tip end of the fins, the cut-outs being provided at a pitch in a range of 0.5 to 1.0 mm. With this construction, the heat exchanger tube for the falling film evaporator which exhibits a high refrigerant wetting and spreading ability as well as large surface area for providing remarkably improved heat transmission performance.

摘要翻译： 用于降膜蒸发器的热交换器管具有翅片，其设置在管体的外周上并且沿着与管的轴向方向横向或倾斜的方向延伸。 翅片的高度在0.2到0.8毫米的范围内。 散热片以密度排列，每轴1个散热片的数量为905〜1102。 形成在翅片的尖端中并基本上沿翼片延伸的槽，槽的相互相对的内周壁表面限定在70°至150°的范围内的角度。 在翅片的前端形成切口，切口以0.5至1.0mm的间距设置。 利用这种结构，降膜蒸发器的热交换器管具有高的制冷剂润湿和铺展能力以及大的表面积，以提供显着提高的传热性能。