公开(公告)号：US07038415B2

公开(公告)日：2006-05-02

申请号：US10786135

申请日：2004-02-26

申请人： Koji Nakamura ,  Manabu Nomura ,  Satoshi Yoshimura

发明人： Koji Nakamura ,  Manabu Nomura ,  Satoshi Yoshimura

IPC分类号： H02H7/08

CPC分类号： B60H1/00828 ,  B60H1/00428 ,  Y02T10/88

摘要： A temperature sensor (33) detects the temperature of a MOS transistor (7), and a current detecting circuit (35) detects current flowing in the MOS transistor (7). When the voltage corresponding to the detected temperature or the voltage corresponding to the detected current is increased to a threshold value or more, an overheat state detecting signal and further switching signal is set to a high level. As a result, a switch circuit in a driving circuit (17) is turned on, and the gate resistance value becomes the parallel value of a resistor (25), and the PWM frequency in the PWM control circuit is lowered, whereby the switching loss of the MOS transistor (7) can be reduced under the state that the motor (2) is rotated.

摘要翻译： 温度传感器（33）检测MOS晶体管（7）的温度，电流检测电路（35）检测在MOS晶体管（7）中流动的电流。 当对应于检测到的温度或对应于检测电流的电压的电压增加到阈值或更大时，过热状态检测信号和进一步的开关信号被设置为高电平。 结果，驱动电路（17）中的开关电路导通，栅极电阻值成为电阻（25）的并联值，PWM控制电路中的PWM频率降低，开关损耗 可以在电动机（2）旋转的状态下减小MOS晶体管（7）。

公开(公告)号：US07113376B2

公开(公告)日：2006-09-26

申请号：US10800705

申请日：2004-03-16

申请人： Manabu Nomura ,  Satoshi Yoshimura

发明人： Manabu Nomura ,  Satoshi Yoshimura

IPC分类号： H02H5/04

CPC分类号： H02P29/02 ,  H02H7/0833 ,  H02H7/0858

摘要： In a control apparatus for a motor, an over-current protection circuit detects an abnormality in a motor current forcibly turns off a MOSFET. The over-current protection circuit has a timer function and a time switching function. In the timer operation, the over-current protection circuit stops an abnormality detection signal for an ON time period before producing the signal for an OFF time period when a current flowing through the motor exceeds a predetermined threshold value. The time switching function is for controlling to lengthen the OFF time period to a relatively larger value in comparison with the ON time period.

摘要翻译： 在电动机的控制装置中，过电流保护电路检测电动机电流的异常强制关断MOSFET。 过流保护电路具有定时器功能和时间切换功能。 在定时器操作中，当流过电动机的电流超过预定阈值时，过电流保护电路在产生断开时间周期的信号之前停止接通时间段的异常检测信号。 与ON时间段相比，时间切换功能用于控制将OFF时间段延长到相对较大的值。

公开(公告)号：US06891342B2

公开(公告)日：2005-05-10

申请号：US10636598

申请日：2003-08-08

申请人： Koji Nakamura ,  Satoshi Yoshimura ,  Takuya Usami

发明人： Koji Nakamura ,  Satoshi Yoshimura ,  Takuya Usami

IPC分类号： H02M3/158 ,  H02P5/68 ,  H02P5/46 ,  H02P7/74

CPC分类号： H02M3/158 ,  H02M2001/008 ,  H02M2003/1555 ,  H02P5/68

摘要： A drive apparatus for driving two motors by PWM control of respective switching elements connected to the motors, whereby respective control signals are applied to the switching elements such that each commencement of a transition of one of the switching elements from the non-conducting to the conducting state coincides with the termination of a transition of the other switching element from the conducting to the non-conducting state, thereby reducing generated electrical noise, and for supplying equivalent values of drive voltage to two motors of different power ratings which rotate respective cooling fans, to obtain equalized levels of air flow rate.

摘要翻译： 一种用于通过连接到电动机的各个开关元件的PWM控制来驱动两个电动机的驱动装置，由此相应的控制信号被施加到开关元件，使得开关元件中的一个从不导通到导通的每一次开始 状态与其他开关元件从导通状态转移到非导通状态的终止一致，从而减少产生的电噪声，并且为驱动电压提供等效值，以驱动不同功率额定值的两个电动机，这些电机使各个冷却风扇转动， 以获得相等的空气流量水平。

公开(公告)号：US20100026355A1

公开(公告)日：2010-02-04

申请号：US12458915

申请日：2009-07-28

申请人： Masatoshi Yokai ,  Satoshi Yoshimura ,  Kouji Nakamura ,  Masao Yamada

发明人： Masatoshi Yokai ,  Satoshi Yoshimura ,  Kouji Nakamura ,  Masao Yamada

IPC分类号： H03L7/00

CPC分类号： H03K17/08122

摘要： A load drive device for driving an inductive load by PWM controlling a switching element includes synchronization control unit, a synchronization signal input terminal, and a synchronization signal output terminal. The synchronization control unit outputs the PWM signal to the switching element. The synchronization control unit receives a synchronization signal through the input terminal from an exterior. The synchronization control unit outputs the synchronization signal through the output terminal to an exterior. When the synchronization control unit does not receive the synchronization signal, the synchronization control unit outputs the synchronization signal such that a first switching period of the PWM signal is prevented from overlapping with a second switching period of a PWM signal of an external device. When the synchronization control unit receives the synchronization signal, the synchronization control unit generates the PWM signal based on the synchronization signal.

摘要翻译： 用于通过PWM控制开关元件驱动感性负载的负载驱动装置包括同步控制单元，同步信号输入端子和同步信号输出端子。 同步控制单元将PWM信号输出到开关元件。 同步控制单元从外部通过输入端子接收同步信号。 同步控制单元通过输出端子输出同步信号到外部。 当同步控制单元没有接收同步信号时，同步控制单元输出同步信号，使得防止PWM信号的第一开关周期与外部设备的PWM信号的第二开关周期重叠。 当同步控制单元接收同步信号时，同步控制单元基于同步信号产生PWM信号。

公开(公告)号：US20090099797A1

公开(公告)日：2009-04-16

申请号：US12232758

申请日：2008-09-23

申请人： Takashi Kounosu ,  Satoshi Yoshimura ,  Shin Satoh ,  Masaki Furumai

发明人： Takashi Kounosu ,  Satoshi Yoshimura ,  Shin Satoh ,  Masaki Furumai

IPC分类号： G01R15/00

CPC分类号： H04B10/504 ,  H01S5/0014 ,  H01S5/02216 ,  H01S5/02284 ,  H01S5/06213 ,  H01S5/12 ,  H04B10/58

摘要： A method to produce an optical module, in particular, a module to transmit an analog data to enhance a yield thereof is disclosed. The method comprises (a) taking an I-L characteristic and its slope efficiency, (b) taking a gradient of a linear approximation between the slope efficiency and a current applied to an LD, and (c) taking an optimum current for the CSO characteristic as varying the current. Steps (a) to (c) give a correlation between the gradient of the linear approximation and the optimum current and are performed in advance to the practical production.

摘要翻译： 公开了一种产生光学模块的方法，特别是用于传输模拟数据以提高其产量的模块。 该方法包括（a）获取IL特性及其斜率效率，（b）采用斜率效率与施加于LD的电流之间的线性近似梯度，（c）将CSO特性的最佳电流作为 改变电流。 步骤（a）至（c）给出线性近似的梯度和最佳电流之间的相关性，并且在实际生产中预先执行。

公开(公告)号：USD564468S1

公开(公告)日：2008-03-18

申请号：US29274065

申请日：2007-03-27

申请人： Satoshi Yoshimura

设计人： Satoshi Yoshimura

公开(公告)号：US06509693B2

公开(公告)日：2003-01-21

申请号：US09928407

申请日：2001-08-14

申请人： Yoshihisa Yonezawa ,  Yukio Ogawa ,  Kazuyoshi Ishikawa ,  Katsutoshi Kogo ,  Satoshi Yoshimura

发明人： Yoshihisa Yonezawa ,  Yukio Ogawa ,  Kazuyoshi Ishikawa ,  Katsutoshi Kogo ,  Satoshi Yoshimura

IPC分类号： G09G310

CPC分类号： H01J9/04 ,  H01J1/13 ,  H01J1/18

摘要： A filament core wire capable of being mounted while having tension at a predetermined level applied thereto without an expensive anchor and without applying unnecessary tension thereto. The filament core wire is provided at a part thereof with spring and welded sections. The sections each are covered with a heat-decomposable block element made of acrylic resin or the like. Also, the core wire has a carbonate deposited thereon. The core wire is mounted on a mounting position by removing the block element from the welded section of the wire arranged on the fixing position by heating and then welding the welded section to a fixing spot of the fixing position. Then, block element is removed from the spring section by heating. This permits the filament core wire to be stretchedly arranged at the mounting position while keeping tension applied to the core wire to provide it with elasticity.

公开(公告)号：US5893788A

公开(公告)日：1999-04-13

申请号：US856998

申请日：1997-05-15

申请人： Yoshio Makita ,  Satoshi Yoshimura ,  Shigeo Itoh

发明人： Yoshio Makita ,  Satoshi Yoshimura ,  Shigeo Itoh

IPC分类号： B23P19/00 ,  H01J9/18 ,  H01J9/24 ,  H01J29/02 ,  H01J29/86 ,  H01J31/12 ,  H01J9/26

CPC分类号： H01J9/242 ,  H01J29/864 ,  H01J31/123 ,  H01J2329/8625 ,  H01J2329/8665

摘要： A support aligning fixture capable of facilitating fitting of supports in support holes of an aligning plate and improving positional accuracy of the supports. First and second aligning plate members of the same construction and thickness are superposed on each other while being registered with each other, to thereby provide an aligning plate. The aligning plate members each are formed with tapered support holes, to thereby facilitating insertion of supports therein. The supports are positioned by two diameter-reduced ends of the support holes of the aligning plate members, resulting in positional accuracy of the supports being increased.

摘要翻译： 一种支撑对准夹具，其能够有助于将支撑件配合到对准板的支撑孔中并提高支撑件的位置精度。 相同结构和厚度的第一和第二对准板构件彼此重叠，从而提供对准板。 对准板构件各自形成有锥形支撑孔，从而便于在其中插入支撑件。 支撑件由对准板构件的支撑孔的两个直径减小的端部定位，导致支撑件的位置精度增加。

公开(公告)号：US5600203A

公开(公告)日：1997-02-04

申请号：US233303

申请日：1994-04-26

申请人： Mamoru Namikawa ,  Tatsuo Yamaura ,  Yukio Ogawa ,  Yoshio Makita ,  Satoshi Yoshimura ,  Yuichi Kogure

发明人： Mamoru Namikawa ,  Tatsuo Yamaura ,  Yukio Ogawa ,  Yoshio Makita ,  Satoshi Yoshimura ,  Yuichi Kogure

IPC分类号： H01J9/18 ,  H01J9/24 ,  H01J29/86 ,  H01J29/50

CPC分类号： H01J9/242 ,  H01J29/864 ,  H01J2329/8625

摘要： An airtight envelope for an FED capable of ensuring formation of a gap or internal space therein with high accuracy and preventing leakage thereof and a decrease in display area. An anode substrate having a phosphor-deposited display pattern formed thereon and a cathode substrate having an electron emission source formed thereon are sealed joined to each other using a sealing material, to thereby provide an airtight envelope for an FED. The substrates are provided at a portion thereof joined together with particulate or bar-like elements which are kept unmelted or substantially unsoftened. Also, spacers are arranged at positions in a gap between the anode substrate and the cathode substrate which do not interfere with a display by the FED.

摘要翻译： 用于能够确保高精度地形成间隙或内部空间的FED的气密封套，防止其泄漏和显示区域的减少。 在其上形成有磷光体沉积显示图案的阳极基板和其上形成有电子发射源的阴极基板使用密封材料彼此密封，从而为FED提供气密封套。 基板设置在与保持未熔化或基本未软化的颗粒状或棒状元件连接在一起的部分。 此外，间隔物布置在阳极衬底和阴极衬底之间的间隙中的位置，该间隙不会与FED干扰显示。

公开(公告)号：US07956561B2

公开(公告)日：2011-06-07

申请号：US12153030

申请日：2008-05-13

申请人： Atsushi Kanamori ,  Satoshi Yoshimura

发明人： Atsushi Kanamori ,  Satoshi Yoshimura

IPC分类号： H02P6/06

CPC分类号： H02P6/18

摘要： A rotor position detecting circuit includes a first position detecting circuit having a low-pass filter that shapes up phase voltage induced in a phase coil and a first comparator that compares the output voltage of the low-pass filter with a threshold level to form a first rotor position signal, and a second position detecting circuit having a second comparator that compares the phase voltage with a threshold voltage and a control unit that digitally processes the output voltage of the second comparator to form a second rotor position signal. The control unit corrects the first rotor position signal by the second rotor position signal to provide a final rotor position signal when the rotation speed of the brushless DC motor is in a measurable range.

摘要翻译： 转子位置检测电路包括第一位置检测电路，该第一位置检测电路具有形成相位线圈中感应的相电压的低通滤波器和将低通滤波器的输出电压与阈值电平进行比较的第一比较器，以形成第一 转子位置信号，以及第二位置检测电路，其具有将相电压与阈值电压进行比较的第二比较器和对第二比较器的输出电压进行数字处理以形成第二转子位置信号的控制单元。 控制单元通过第二转子位置信号来校正第一转子位置信号，以在无刷直流电动机的转速处于可测量范围时提供最终的转子位置信号。