公开(公告)号：US06271673B1

公开(公告)日：2001-08-07

申请号：US09277798

申请日：1999-03-27

申请人： Masaji Furuta ,  Koichi Yanagawa

发明人： Masaji Furuta ,  Koichi Yanagawa

IPC分类号： G01R104

CPC分类号： G01R31/2831 ,  G01R1/0408

摘要： A probe for measuring signals with a narrow contact pitch comprises an end section having a main tip member and a sub-tip member, each of which passes through one of two holes in a housing. The sub-tip member is electrically connected to the housing and the main-tip member is insulated from the housing by an insulation member. The sub-tip member is pivotally connected to the housing. The subtip member is asymmetric with respect to the pivot and therefore, its sharpened end can trace a circular orbit when the sub-tip member turns on its pivot. The distance between the two end sections of these tip members (that is, the contact pitch) can be set to a desired length by positioning sub-tip sharpened end section to any point on this orbit.

摘要翻译： 用于测量具有窄接触间距的信号的探针包括具有主端部构件和副尖端构件的端部，每个端部件穿过壳体中的两个孔中的一个。 副尖端构件电连接到壳体，并且主尖构件通过绝缘构件与壳体绝缘。 副尖端构件枢转地连接到壳体。 所述小穗构件相对于所述枢轴是不对称的，并且因此，当所述副尖端构件接通其枢轴时，其尖端可以跟踪圆形轨道。 这些尖端部件的两个端部部分之间的距离（即接触间距）可以通过将副尖端锐化端部部分定位在该轨道上的任何点上来设定为期望的长度。

公开(公告)号：US06199610B1

公开(公告)日：2001-03-13

申请号：US09077568

申请日：1998-06-01

申请人： Koichi Yanagawa

发明人： Koichi Yanagawa

IPC分类号： B60C100

CPC分类号： B60C11/1618 ,  B60C11/16

摘要： An antiskid device (A) mounted to a tread (20) of a tire (2) has a pin (10) and a heat insulating member (11) attached to an end of the pin (10). The pin (10) is made of a material having a higher hardness in a first temperature range not higher than a predetermined temperature and a lower hardness in a second temperature range above the predetermined temperature. The insulating member (11) prohibits heat transfer from the tire (2) to the pin (10).

摘要翻译： 安装在轮胎（2）的胎面（20）上的防滑装置（A）具有安装在销（10）的端部的销（10）和绝热构件（11）。 销（10）由在不高于预定温度的第一温度范围内具有较高硬度的材料和在高于预定温度的第二温度范围内的较低硬度制成。 绝缘构件（11）禁止从轮胎（2）向销（10）的热传递。

公开(公告)号：US4885528A

公开(公告)日：1989-12-05

申请号：US318286

申请日：1989-03-03

申请人： Hideshi Tanaka ,  Kazuyuki Yagi ,  Shigeru Tanimoto ,  Yasuaki Komatsu ,  Koichi Yanagawa ,  Yoichi Kuboyama

发明人： Hideshi Tanaka ,  Kazuyuki Yagi ,  Shigeru Tanimoto ,  Yasuaki Komatsu ,  Koichi Yanagawa ,  Yoichi Kuboyama

IPC分类号： G01R27/02 ,  G01R27/00 ,  G01R27/14 ,  G01R27/26 ,  G06G7/625 ,  H03H11/48

CPC分类号： G01R27/14 ,  G01R27/00 ,  G01R27/26 ,  G06G7/625 ,  H03H11/485

摘要： The present invention relates to apparatus for measuring the AC electrical parameters of a circuit element (Device-Under-Test, DUT), such as a resistor, a capacitor or an inductor, at the desired frequency of a signal while applying a DC bias to the DUT. The present invention provides an apparatus capable of measurement with less error even in the lower-frequency range.

摘要翻译： 本发明涉及一种用于在将信号施加DC偏压到信号的期望频率的状态下测量诸如电阻器，电容器或电感器的电路元件（器件未测试，DUT）的AC电参数的装置， 被测件。 本发明提供了即使在较低频率范围内也能够以较小误差进行测量的装置。

公开(公告)号：US5661404A

公开(公告)日：1997-08-26

申请号：US503092

申请日：1995-07-17

申请人： Koichi Yanagawa ,  Atsushi Ishihara ,  Hiroyuki Iwai ,  Tatsuo Furukawa

发明人： Koichi Yanagawa ,  Atsushi Ishihara ,  Hiroyuki Iwai ,  Tatsuo Furukawa

IPC分类号： G01R27/28 ,  G01R27/30 ,  G01R35/00

CPC分类号： G01R35/005 ,  G01R27/30

摘要： A system and a method are presented which reduce the number of times of connection and disconnection of calibration standards in a circuit network measurement device provided with many measurement ports. The circuit network measurement device generally includes a network analyzer and a test set. A calibration port is provided and typically placed in the test set. The calibration port consists of a connector and three standards (open, short, and load impedances) connected to the connector internally by means of a selection switch. The measurement port of the circuit network measurement device is calibrated by using the three external impedance standards. The calibrator is calibrated by connecting the measurement port calibrated at the former step. Other measurement ports are then connected to the calibrator to be calibrated. Because the three impedances of the internal calibrator are automatically selected by a switch of the calibrator, by means of logical control, the number of times the standards are connected and disconnected is reduced.

摘要翻译： 本发明提供一种系统和方法，其减少了具有许多测量端口的电路网络测量装置中校准标准的连接和断开次数。 电路网络测量装置通常包括网络分析器和测试装置。 提供校准端口，通常放置在测试仪中。 校准端口由连接器和通过选择开关内部连接到连接器的三个标准（开路，短路和负载阻抗）组成。 电路网络测量设备的测量端口使用三个外部阻抗标准进行校准。 校准器通过连接在前一步骤校准的测量端口进行校准。 然后将其他测量端口连接到校准器进行校准。 由于内部校准器的三个阻抗由校准器的开关自动选择，通过逻辑控制，标准品的连接和断开次数减少了。

公开(公告)号：US5523693A

公开(公告)日：1996-06-04

申请号：US69920

申请日：1993-06-01

申请人： Koichi Yanagawa

发明人： Koichi Yanagawa

IPC分类号： G01R27/00 ,  G01R17/10 ,  G01R27/06 ,  G01R31/00 ,  G01R31/28 ,  G01R27/28

CPC分类号： G01R27/06 ,  G01R17/10 ,  G01R31/2841

摘要： The bridge circuit receives the balance signal output from the balanced signal source, which generates a broad-band balanced signal over a frequency band of a direct current to several tens of MHz as a reflection-characteristic measuring bridge. The balance signal source is constructed by connecting in series the first balance output type circuit whose equivalent circuit is represented by the parallel-connection circuit of the resistor R.sub.1 and the electrostatic capacitor C, and the second balance output type circuit whose equivalent circuit is represented by the parallel-connection circuit of the resistor R.sub.2 and the inductance L, R.sub.1, R.sub.2, C and L of the first and second balanced output type circuits are set to such values that the output impedance of the balanced signal source is regarded as a pure resistance so that the balanced signal can be stably generated over the broad frequency band without suffering affection of the electrostatic capacitance of the first balanced output type circuit and the inductance of the second balanced output type circuit.

摘要翻译： 桥接电路接收从平衡信号源输出的平衡信号，其在直流到几十MHz的频带上产生宽带平衡信号作为反射特性测量桥。 平衡信号源通过串联连接其等效电路由电阻器R1的并联连接电路和静电电容器C表示的第一平衡输出型电路和第二平衡输出型电路构成，其等效电路由 电阻R2的并联电路和第一和第二平衡输出型电路的电感L，R1，R2，C和L被设定为将平衡信号源的输出阻抗视为纯电阻 使得能够在宽频带上稳定地产生平衡信号，而不会受到第一平衡输出型电路的静电电容和第二平衡输出型电路的电感的影响。

公开(公告)号：US5014012A

公开(公告)日：1991-05-07

申请号：US374117

申请日：1989-06-30

申请人： Yoichi Kuboyama ,  Koichi Yanagawa

发明人： Yoichi Kuboyama ,  Koichi Yanagawa

IPC分类号： G01R27/00 ,  G01R27/02 ,  G01R27/26

CPC分类号： G01R27/2611 ,  G01R27/02

摘要： For measuring the inductance of a workpiece, a device which includes an inductance meter, respective D.C. and A.C. power sources as well as a guard line circuit. In order to simulate conditions of actual use of the workpiece, the D.C. power source is connected to provide a direct current bias through the workpiece. A measuring current produced by the A.C. power source and applied to the workpiece is detected via the inductance meter. The guard line circuit is coupled so as to prevent any portions of the A.C. measuring signal from undesirably flowing through the D.C. power source.

摘要翻译： 用于测量工件的电感，包括电感计，相应的直流和交流电源以及保护线电路的装置。 为了模拟工件的实际使用条件，直流电源被连接以提供通过工件的直流偏压。 通过电感表检测由交流电源产生并施加到工件上的测量电流。 保护线电路被耦合，以防止交流测量信号的任何部分不期望地流过直流电源。

公开(公告)号：US06959573B2

公开(公告)日：2005-11-01

申请号：US10343836

申请日：2001-08-08

申请人： Masateru Matsumoto ,  Koichi Yanagawa ,  Ken Hatano ,  Yutaka Takizawa

发明人： Masateru Matsumoto ,  Koichi Yanagawa ,  Ken Hatano ,  Yutaka Takizawa

IPC分类号： B21D5/02

CPC分类号： B21D5/042 ,  B21D5/02 ,  B21D5/0209 ,  Y10S72/702

摘要： A bending apparatus reciprocates at least one of an upper table to which a punch is mounted and a lower table to which a corresponding plurality of adjacent divided dies are mounted. At least one bending angle detector is provided between the dies to detect a bending angle of the workpiece. A main body inserts the bending angle detector into a gap between the dies and withdraws the bending angle detector from the gap between the dies. A lift is biased upward by a first elastic body and is configured to be pressed downward by the workpiece at approximately a center of a groove portion of the dies. The lift includes a first engagement member. A rotor support is biased upward by two second elastic bodies having smaller biasing forces than the first elastic body. The rotor support includes second engagement members. Two rotors are provided on opposite sides of the groove portion at an upper portion of the rotor support. The two rotors include workpiece contacts that contact the workpiece. Links rotatably engage the first engagement member to stop an upper end of the lift in a position lower than an upper surface of the dies, and rotatably engage the second engagement members to position the workpiece contacts below the upper surface of the dies. A bending angle calculator converts rotating amounts of the two rotors into bending angles of the workpiece.

摘要翻译： 弯曲装置使安装有冲头的上台中的至少一个与安装相应的多个相邻分割模的下台往复运动。 在模具之间设置至少一个弯曲角度检测器，以检测工件的弯曲角度。 主体将弯曲角度检测器插入到模具之间的间隙中，并从模​​具之间的间隙中取出弯曲角度检测器。 电梯被第一弹性体向上偏压，并被构造成在模具的凹槽部分的大致中心处被工件向下按压。 升降机包括第一接合构件。 转子支撑件被具有比第一弹性体更小的偏压力的两个第二弹性体向上偏压。 转子支撑件包括第二接合构件。 在转子支撑件的上部处，在槽部的相对侧设置有两个转子。 两个转子包括接触工件的工件接触。 链节可旋转地接合第一接合构件以将升降机的上端停在比模具的上表面低的位置，并且可旋转地接合第二接合构件，以将工件触点定位在模具的上表面下方。 弯曲角度计算器将两个转子的旋转量转换成工件的弯曲角度。