公开(公告)号：US08022648B2

公开(公告)日：2011-09-20

申请号：US12275516

申请日：2008-11-21

申请人： Hideaki Ito ,  Kenji Sugaya ,  Kazufumi Yamashita ,  Toshio Maehara ,  Shoji Oiwa

发明人： Hideaki Ito ,  Kenji Sugaya ,  Kazufumi Yamashita ,  Toshio Maehara ,  Shoji Oiwa

IPC分类号： H02P6/08

CPC分类号： H02P6/16 ,  H02P2209/07 ,  Y02P80/116

摘要： A motor driving circuit for full-wave single-phase driving a motor includes a position detection unit, a turn-on signal generation unit, and switching devices that define an H-bridge circuit. The turn-on signal generation unit includes a differential amplifier arranged to produce a trapezoid wave signal, and a square wave generation circuit arranged to produce a square wave signal, wherein the trapezoid and the square wave signals are respectively supplied to control terminals of lower switching devices in the H-bridge circuit. Further, one of the lower switching devices is turned on and off according to a voltage level of the square wave signal, and the remaining lower switching device is turned on and off when a voltage of the trapezoid wave signal becomes higher than an operation voltage of the remaining lower switching device, wherein a non-conducting interval is provided for the motor coil according to the operation voltage.

摘要翻译： 用于全波单相驱动电动机的电动机驱动电路包括位置检测单元，导通信号生成单元和限定H桥电路的开关装置。 导通信号生成单元包括：差分放大器，其被配置为产生梯形波信号;以及方波生成电路，被配置为产生方波信号，其中梯形和方波信号分别提供给较低开关的控制端子 H桥电路中的器件。 此外，根据方波信号的电压电平，下开关器件中的一个被导通和截止，并且当梯形波信号的电压变得高于操作电压时，其余的下开关器件导通和截止 剩余的下部开关装置，其中根据操作电压为电动机线圈提供非导通间隔。

公开(公告)号：US20060267426A1

公开(公告)日：2006-11-30

申请号：US11420842

申请日：2006-05-30

申请人： Toshio Maehara ,  Eiji Kuroda

发明人： Toshio Maehara ,  Eiji Kuroda

IPC分类号： H02K7/06 ,  H02K37/14

CPC分类号： H02K7/07

摘要： An induction motor has a gear connected to an output shaft of the motor, a ratchet wheel having a claw for preventing the reverse rotation of the gear, and an urging device. The urging device urges the ratchet wheel so that an end surface of a tip end of the claw of the ratchet wheel is brought into contact with a tooth face facing a reverse rotary direction of the gear so as to prevent the reverse rotation of the gear. A contact angle formed by the end surface of the tip end of the claw and a center line of the tooth of the end surface of gear preferably is set equal to a pressure angle of the gear.

摘要翻译： 感应电动机具有连接到电动机的输出轴的齿轮，具有用于防止齿轮反向旋转的爪的棘轮和推动装置。 推动装置推动棘轮，使得棘轮的爪的尖端的端面与面向齿轮的反向旋转方向的齿面接触，以防止齿轮的反向旋转。 由爪的前端的端面与齿轮端面的齿的中心线形成的接触角优选设定为等于齿轮的压力角。

公开(公告)号：US07259757B2

公开(公告)日：2007-08-21

申请号：US10799891

申请日：2004-03-15

申请人： Toshio Maehara

发明人： Toshio Maehara

IPC分类号： G09G5/00

CPC分类号： G09G3/2081 ,  G09G3/2018

摘要： An object is to provide an image signal processing device capable of converting digital image signals into analog image signals using a circuit of small scale. Addition high-order bit pixel data is generated by adding, to high-order bit pixel data comprising an high-order consecutive bits of input pixel data, a value corresponding to the least significant bit digit of the high-order bit pixel data. In a prescribed period, during a time period corresponding to a value of low-order bit pixel data comprising low-order consecutive bits of the input pixel data, the addition high-order bit pixel data is taken to be the data for D/A conversion, and in other period, the high-order bit pixel data is taken to be the data for D/A conversion. By means of this configuration, even when the resolution of a D/A converter is lower than the resolution required by the input pixel data, the resolution of the image ultimately viewed during the prescribed period is equivalent to the resolution required by the input pixel data. Consequently, to the extent that the resolution of the D/A converter can be lowered, the circuit scale can be reduced.

摘要翻译： 目的是提供一种能够使用小规模电路将数字图像信号转换成模拟图像信号的图像信号处理装置。 通过将包括输入像素数据的高阶连续位的高位比特像素数据相加于高位比特像素数据的最低有效位数字的值来生成加法高位比特像素数据。 在规定的时间内，在与包含输入像素数据的低位连续位的低位比特像素数据对应的时间段内，将加法高阶比特像素数据作为D / A的数据 转换，而在其他时段，将高位位像素数据作为D / A转换的数据。 通过这种配置，即使当D / A转换器的分辨率低于输入像素数据所需的分辨率时，在规定的周期内最终看到的图像的分辨率等于输入像素数据所要求的分辨率 。 因此，可以降低D / A转换器的分辨率，可以减小电路规模。

公开(公告)号：US07619172B2

公开(公告)日：2009-11-17

申请号：US12015550

申请日：2008-01-17

申请人： Toshio Maehara ,  Eiji Kuroda ,  Yoshitaka Yokoi

发明人： Toshio Maehara ,  Eiji Kuroda ,  Yoshitaka Yokoi

IPC分类号： H01H9/00

CPC分类号： F25D29/005 ,  F25C1/00 ,  F25C2700/04 ,  H01H3/16

摘要： A micro switch is mounted onto a mounting base attached to a controller of an automatic icemaker. The micro switch generates a signal for controlling the amount of water to be filled in an ice tray. The micro switch is fixed to the mounting base by the first fixing member and the second fixing member. The first fixing member is inserted through a mounting hole formed in a case of the micro switch. The second fixing member is arranged on a surface of the mounting base on an opposite side of a surface mounted with the micro switch, and is fixed to the first fixing member.

摘要翻译： 微型开关安装在安装在自动制冰机控制器上的安装座上。 微型开关产生用于控制在冰盘中填充的水量的信号。 微型开关通过第一固定构件和第二固定构件固定到安装基座。 第一固定构件通过形成在微型开关的壳体中的安装孔插入。 第二固定部件设置在与安装有微型开关的表面相反的一侧的安装基座的表面上，并固定在第一固定部件上。

公开(公告)号：US20080237000A1

公开(公告)日：2008-10-02

申请号：US12015550

申请日：2008-01-17

申请人： Toshio Maehara ,  Eiji Kuroda ,  Yoshitaka Yokoi

发明人： Toshio Maehara ,  Eiji Kuroda ,  Yoshitaka Yokoi

IPC分类号： H01H19/00

CPC分类号： F25D29/005 ,  F25C1/00 ,  F25C2700/04 ,  H01H3/16

摘要： A micro switch is mounted onto a mounting base attached to a controller of an automatic icemaker. The micro switch generates a signal for controlling the amount of water to be filled in an ice tray. The micro switch is fixed to the mounting base by the first fixing member and the second fixing member. The first fixing member is inserted through a mounting hole formed in a case of the micro switch. The second fixing member is arranged on a surface of the mounting base on an opposite side of a surface mounted with the micro switch, and is fixed to the first fixing member.

摘要翻译： 微型开关安装在安装在自动制冰机控制器上的安装座上。 微型开关产生用于控制在冰盘中填充的水量的信号。 微型开关通过第一固定构件和第二固定构件固定到安装基座。 第一固定构件通过形成在微型开关的壳体中的安装孔插入。 第二固定部件设置在与安装有微型开关的表面相反的一侧的安装基座的表面上，并固定在第一固定部件上。

公开(公告)号：US5465602A

公开(公告)日：1995-11-14

申请号：US357211

申请日：1994-12-13

申请人： Kenichi Hashimoto ,  Toshio Maehara ,  Yasuo Imaizumi ,  Tetsuo Asai

发明人： Kenichi Hashimoto ,  Toshio Maehara ,  Yasuo Imaizumi ,  Tetsuo Asai

IPC分类号： B21D24/00 ,  B21D22/02 ,  B21D37/20 ,  B21D22/00 ,  B21D22/20 ,  B21D22/22

CPC分类号： B21D37/20 ,  B21D22/02

摘要： A press die assembly is efficiently produced by: fabricating a press die pattern having therein grooves extending along concave corner portions thereof corresponding to concave corner portions of a product forming surface in the die of the press die assembly; fabricating a cast blank of the die by a full-mold method by using the press die pattern; and machining and finishing the product forming surface of the cast blank by utilizing the grooves as clearance space for the machining and finishing tools to obtain the finished die. In the press forming operation of the press die assembly, the grooves permit the sheet blank being press formed to slip thereby to eliminate local stretching, whereby high-quality pressed products are obtained. The grooves enables an easy machining by a tool.

摘要翻译： 压模组件有效地通过以下方式有效地制造：制造压模模具，其中具有沿其凹角部分延伸的凹槽，所述凹槽对应于压模组件的模具中的产品形成表面的凹角部; 通过使用压模图案通过全模法制造模具的铸坯; 通过利用槽作为加工和精加工工具的间隙来加工和整理铸坯的产品形成表面，以获得成品模具。 在冲压模具组件的冲压成形操作中，凹槽允许压制成形的板坯滑动，从而消除局部拉伸，从而获得高质量的压制产品。 这些凹槽能够通过工具轻松加工。

公开(公告)号：US5398572A

公开(公告)日：1995-03-21

申请号：US120455

申请日：1993-09-14

申请人： Kenichi Hashimoto ,  Toshio Maehara ,  Yasuo Imaizumi ,  Tetsuo Asai

发明人： Kenichi Hashimoto ,  Toshio Maehara ,  Yasuo Imaizumi ,  Tetsuo Asai

IPC分类号： B21D24/00 ,  B21D22/02 ,  B21D37/20

CPC分类号： B21D37/20 ,  B21D22/02

摘要： A press die assembly is efficiently produced by: fabricating a press die pattern having therein grooves extending along concave corner portions thereof corresponding to concave corner portions of a product forming surface in the die of the press die assembly; fabricating a cast blank of the die by a full-mold method by using the press die pattern; and machining and finishing the product forming surface of the cast blank by utilizing the grooves as clearance space for the machining and finishing tools to obtain the finished die. In the press forming operation of the press die assembly, the grooves permit the sheet blank being press formed to slip thereby to eliminate local stretching, whereby high-quality pressed products are obtained. The grooves enables an easy machining by a tool.

摘要翻译： 压模组件有效地通过以下方式有效地制造：制造压模模具，其中具有沿其凹角部分延伸的凹槽，所述凹槽对应于压模组件的模具中的产品形成表面的凹角部; 通过使用压模图案通过全模法制造模具的铸坯; 通过利用槽作为加工和精加工工具的间隙来加工和整理铸坯的产品形成表面，以获得成品模具。 在冲压模具组件的冲压成形操作中，凹槽允许压制成形的板坯滑动，从而消除局部拉伸，从而获得高质量的压制产品。 这些凹槽能够通过工具轻松加工。