Patents by Inventor Chen-An Ku
Chen-An Ku has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090250887Abstract: An improved cinquefoil chuck comprises a clamping jaw mechanism provided with a plurality of clamping jaws that may release and close and that are connected to and driven by a driving mechanism. The clamping jaw mechanism is connected to and driven by an autorotation mechanism to rotate, and the cinquefoil chuck is used to make the clamping jaw mechanism automatically rotate for safe and easy operation.Type: ApplicationFiled: April 7, 2008Publication date: October 8, 2009Inventor: Wen-Chen Ku
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Patent number: 7332895Abstract: A regulator for eliminating noises generated by an automotive power generator is composed of a front-end circuit, a semiconductor power element, a resistor, and a capacitor. The front-end circuit includes a plurality of electronic components for offering control signals generated therefrom. The semiconductor power element is electrically connected with a field coil of the power generator, including a gate electrically connected with the front-end circuit for receiving the control signals that switch ON/OFF the gate. The resistor is electrically connected in series between the gate and the front-end circuit. The capacitor includes an end connected with the gate and the other end thereof grounded. Thus, the semiconductor power element can slow down the ON/OFF switching to be further low-cost and simple-circuit for enhanced quality of the output voltage of the power generator.Type: GrantFiled: January 17, 2006Date of Patent: February 19, 2008Assignee: Mobiletron Electronics, Co.Inventor: Chen-Ku Wei
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Publication number: 20070164712Abstract: A regulator for eliminating noises generated by an automotive power generator is composed of a front-end circuit, a semiconductor power element, a resistor, and a capacitor. The front-end circuit includes a plurality of electronic components for offering control signals generated therefrom. The semiconductor power element is electrically connected with a field coil of the power generator, including a gate electrically connected with the front-end circuit for receiving the control signals that switch ON/OFF the gate. The resistor is electrically connected in series between the gate and the front-end circuit. The capacitor includes an end connected with the gate and the other end thereof grounded. Thus, the semiconductor power element can slow down the ON/OFF switching to be further low-cost and simple-circuit for enhanced quality of the output voltage of the power generator.Type: ApplicationFiled: January 17, 2006Publication date: July 19, 2007Applicant: MOBILETRON ELECTRONICS CO., LTD.Inventor: Chen-Ku Wei
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Publication number: 20070164706Abstract: A controller built in Li-battery electric tool includes a microprocessor, a charging switch loop, a battery voltage detecting loop, a motor driving loop, and a power circuit. The charging switch loop is connected with the microprocessor and connected to a chargeable battery and a charging source, for controlling the charging status of the rechargeable battery. The battery voltage detecting loop is connected with the microprocessor for detecting the voltage of the rechargeable battery. The motor driving loop is connected with the microprocessor, having an electrically-controlled switch connected with a motor mounted inside the electric tool. The power circuit is connected with the microprocessor and the charging source, for providing the microprocessor with a power source. Thus, the rechargeable battery can be controlled while charged and discharged, and the present invention is of few components and small-sized as advantages.Type: ApplicationFiled: January 17, 2006Publication date: July 19, 2007Applicant: MOBILETRON ELECTRONICS CO., LTD.Inventor: Chen-Ku Wei
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Publication number: 20070165341Abstract: An overvoltage-protective automotive power generation control circuit that is adapted for electrical connection with a field coil of an automotive power generator includes a voltage detecting circuit electrically connected with a battery-based power source mounted in a car for generating a predetermined partial voltage with respect to the battery-based power source; a driving element having a gate terminal electrically connected with the voltage detecting circuit and two conduction terminals one of which is grounded; and an opening element serially connected with the field coil of the automotive power generator and electrically connected with the other conduction terminal for open circuit upon activation and closed circuit of the driving element. Thus, the battery-based power source is prevented from overcharge and overvoltage to further prevent electronic apparatuses mounted in the car from damage incurred by the overvoltage.Type: ApplicationFiled: January 17, 2006Publication date: July 19, 2007Applicant: MOBILETRON ELECTRONICS CO., LTD.Inventor: Chen-Ku Wei
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Publication number: 20070088104Abstract: A temperature regulating gel includes a hydrophilic polymeric substrate and a heat-storing material. The hydrophilic polymeric substrate may include a natural hydrogel, a synthetic hydrogel, or any combination thereof. The heat-storing material may include a phase change material, a plastic crystal, or any combination thereof. The present invention also discloses a temperature regulating article including the temperature regulating gel.Type: ApplicationFiled: October 11, 2006Publication date: April 19, 2007Applicant: TAIWAN TEXTILE RESEARCH INSTITUTEInventors: Yu-Chun Hung, Chi-Shu Wei, Chen-An Ku, Yen-Hsi Lin
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Patent number: 7038503Abstract: A driving circuit for electrical nailing gun is disclosed to include a capacitive charging/discharging unit formed of a first resistor, a first diode, and a capacitor connected in series and connected with two opposite ends thereof to the positive and negative poles of AC power source, an excited field unit formed of a first coil and a first electrically-controlled switch connected in series and having two opposite ends connected in parallel to the capacitor, and a control unit electrically connected to the first electrically-controlled switch for activating the first electrically-controlled switch.Type: GrantFiled: July 8, 2004Date of Patent: May 2, 2006Assignee: Mobiletron Electronics Co., Ltd.Inventor: Chen-Ku Wei
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Patent number: 7015657Abstract: A ballast includes a power unit for supplying DC, a converting unit having four switches connected to the power unit for converting DC into AC, a voltage-resistant electrocontrol switch connected to the converting unit and having at least one high-voltage diode and an electrocontrol switch, all of which are arranged in parallel, a high-voltage ignition unit connected to the voltage-resistant electrocontrol switch, a current sensor connected to the converting unit, and a control circuit connected to the converting unit, the power unit, the high-voltage ignition unit, and the voltage-resistant electrocontrol switch for manipulating the actions of the aforesaid elements, such that the ballast is in high-voltage and parallel structure. In addition, the electrocontrol switch of the voltage-resistant electrocontrol switch contains inside high-voltage-resistant insulated oil for enabling the voltage-resistant electrocontrol switch to be resistant to high voltage for AC running through.Type: GrantFiled: May 4, 2004Date of Patent: March 21, 2006Assignee: Mobiletron Electronics Co., Ltd.Inventor: Chen-Ku Wei
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Publication number: 20060006911Abstract: A driving circuit for electrical nailing gun is disclosed to include a capacitive charging/discharging unit formed of a first resistor, a first diode, and a capacitor connected in series and connected with two opposite ends thereof to the positive and negative poles of AC power source, an excited field unit formed of a first coil and a first electrically-controlled switch connected in series and having two opposite ends connected in parallel to the capacitor, and a control unit electrically connected to the first electrically-controlled switch for activating the first electrically-controlled switch.Type: ApplicationFiled: July 8, 2004Publication date: January 12, 2006Applicant: MOBILETRON ELECTRONICS CO., LTD.Inventor: Chen-Ku Wei
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Patent number: 6977485Abstract: A battery charging and/or DC power supply circuitry employs a control circuit through an SCR drive circuit and an MOS drive circuit to control when to turn on/off a semiconductor switch unit and to turn on the semiconductor switch unit while an initial section of each positive half wave of an AC power source and an terminating section of the same are located below a predetermined level for intercepting partial power for charging. While charging a battery, the circuitry is lightweight, small-sized, and to enhance the life of the battery. While being a DC power supply, the circuitry is small-sized, high-efficiency, and low-cost.Type: GrantFiled: December 6, 2004Date of Patent: December 20, 2005Assignee: Mobiletron Electronics Co., Ltd.Inventor: Chen-Ku Wei
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Patent number: 6955281Abstract: An electric nailing gun is disclosed to use a sensor in the nail magazine and to connect the sensor to a control circuit such that when a magazine follower is moved to a predetermined position in the nail path, the sensor sends a control signal to the control circuit to drive a counter to start counting the number of striking actions of the plunger, and the control circuit controls the electric nailing gun to reduce the plunger impact when the counting of the counter reaches a predetermined value.Type: GrantFiled: July 23, 2004Date of Patent: October 18, 2005Assignee: Mobiletron Electronics Co., Ltd.Inventor: Chen-Ku Wei
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Publication number: 20050212463Abstract: A ballast includes a power unit for supplying DC, a converting unit having four switches connected to the power unit for converting DC into AC, a voltage-resistant electrocontrol switch connected to the converting unit and having at least one high-voltage diode and an electrocontrol switch, all of which are arranged in parallel, a high-voltage ignition unit connected to the voltage-resistant electrocontrol switch, a current sensor connected to the converting unit, and a control circuit connected to the converting unit, the power unit, the high-voltage ignition unit, and the voltage-resistant electrocontrol switch for manipulating the actions of the aforesaid elements, such that the ballast is in high-voltage and parallel structure. In addition, the electrocontrol switch of the voltage-resistant electrocontrol switch contains inside high-voltage-resistant insulated oil for enabling the voltage-resistant electrocontrol switch to be resistant to high voltage for AC running through.Type: ApplicationFiled: May 4, 2004Publication date: September 29, 2005Applicant: MOBILETRON ELECTRONICS CO., LTD.Inventor: Chen-Ku Wei
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Patent number: 6638409Abstract: A real-time and in-line process control system maintains stable plating performance in copper electrochemical plating IC devices by using a real time, on-line programmable controller. Two or more valves to direct the flow of the electrolyte from the electroplating cell back to the reservoir connect an alternative carbon-filter as well as a mirco-filter. The programmable controller controls the operation of at least two in-line valves to direct the flow of the electrolyte within the system.Type: GrantFiled: May 21, 2002Date of Patent: October 28, 2003Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chen-Ming Huang, Li-Chuen Cheng, Hung-Jen Lin, Chih-Chen Ku, San-Sun Yang
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Patent number: 5838544Abstract: A heat dissipating structure for rectifiers of car alternators includes an upper cover, a rectifier assembly disposed under the upper cover, and a heat dissipating plate disposed below the rectifier assembly. The rectifier assembly is comprised of a plurality of rectifying elements and terminals, and a heat conductive assembly for receiving the rectifying elements. One side of the respective rectifying elements are connected to the terminals to constitute a rectifier circuit. The other side of the respective rectifying elements are connected to the heat conductive assembly, which is in turn connected to the heat dissipating plate. The heat conductive assembly is comprised of a heat conductive plate to which the rectifying elements may adhere, and a ceramic heat dissipating substrate disposed between the heat conductive plate and the heat dissipating plate.Type: GrantFiled: May 13, 1997Date of Patent: November 17, 1998Assignee: Mobiletron Electronics Co., Ltd.Inventor: Chen-Ku Wei