Hung-Chi Chen
Hung-Chi Chen, Taichuing County TW
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20110005364 | Band saw having worktable whose horizontal rotary angle is adjustable - A band saw includes a machine base having a shaft hole for a saw blade to pass through, and a worktable having a shaft tube for the saw blade to pass through. By means of the insertion of the shaft tube of the worktable into the shaft hole of the machine base, the worktable is rotatable relative to the saw blade for adjustment of the horizontal rotary angle thereof. | 01-13-2011 |
Hung-Chi Chen, Taoyuan Hsien TW
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20080247868 | FAN AND IMPELLER THEREOF - A fan has an impeller, a motor and a frame. The impeller and the motor are disposed within the frame, and the motor is connected to the impeller and drives the impeller to rotate. The impeller includes a hub and an odd number of blade sets. The blade sets are disposed around the circumference of the hub. Bach blade set has a plurality of the blades, and the blades of each blade set can be the same or not. For example, the blades in each of the blade sets have different tilting angles, heights and/or lengths while the blades are connected with the hub. Or the blades in each of the blade sets have different curvatures, arc lengths, thicknesses, or side-view shapes. | 10-09-2008 |
20090196773 | FAN AND MOTOR - A foreign-body-proof or water-proof fan includes an impeller and a motor. The motor includes a rotor, a stator, a housing, at least one bearing and a spacer. The rotor has a shaft. The stator is disposed corresponding to the rotor. The housing supports for the stator and the rotor and has an axial hole, and the shaft passes through the axial hole. One end of the shaft protrudes out of the housing and is connected to the impeller. The bearing for supporting the shaft is disposed in the axial hole and securely disposed in the axial hole. The spacer loops the shaft and urges against the bearing. | 08-06-2009 |
20100166580 | FAN AND FAN HOUSING - A fan includes a fan housing, a motor and an impeller. The fan housing includes a first pressure area, a second pressure area and a guiding portion. The pressure of the first pressure area is higher than the pressure of the second pressure area. The guiding portion has a first end and a second end, the first end of the guiding portion is disposed at the first pressure area and the second end of the guiding portion is disposed at the second pressure area for draining moisture gathered in the fan housing away from the first pressure area to the second pressure area. The motor is disposed in the fan housing, and the impeller is connected with the motor. | 07-01-2010 |
20100178181 | HEAT-DISSIPATION STRUCTURE FOR MOTOR - A heat-dissipation structure for a motor. The heat-dissipation structure comprises a shaft, a seat and a rotator. The rotator coupled to the seat by the shaft comprises a housing and a cover. The housing comprises an inner side connected to the shaft and a bottom comprising at least one through hole. The cover is connected to an exterior of the bottom of the housing and a distance is formed between the cover and the housing, so that the cover prevents objects from entering the through hole. | 07-15-2010 |
Hung-Chi Chen, Taipei TW
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20100058571 | Snap Relieving Device and Electronic Apparatus with the Snap Relieving Device - A snap relieving device includes a first movable part, a second movable part, an inclining guiding groove, a guiding piece, and a snap. The first movable part moves along a first direction. The second movable part moves along a second direction, wherein the first direction is substantially orthogonal to the second direction. The inclining guiding groove is disposed on the first movable part. The guiding piece is coupled with the inclining guiding groove and disposed on the second movable part. The snap is connected to the first movable part or the second movable part. | 03-11-2010 |
20100059653 | Resilient Arm and Electronic Apparatus with the Resilient Arm - A resilient arm includes an outer frame, a fastening portion, and a first spring. The fastening portion is located in the outer frame and connected to a fixed object. The first spring connects the fastening portion and the outer frame such that the outer frame and the first spring are linked. | 03-11-2010 |
Hung-Chi Chen, Taipei City TW
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20090284986 | LIGHT GUIDE PLATE AND BACKLIGHT MODULE - A light guide plate has a light emitting surface, a bottom surface and a first and a second light incident surfaces connected to the light emitting surface and the bottom surface. The bottom surface approaches the light emitting surface gradually along a first direction away from the first light incident surface and along a second direction away from the second light incident surface, or is away from the light emitting surface gradually along the first direction and the second direction. The light guide plate includes a plurality of first and second hollow portions disposed on the light emitting surface. The first hollow portions are arranged on a first axis. The second hollow portions are arranged on a second axis. A plurality of orthogonal projections of the second hollow portions formed on the first axis and the first hollow portions are alternately arranged. | 11-19-2009 |
20090302618 | LOCKING DEVICE - A locking device disposed on a casing and suitable for buckling up with a detachable object is provided. The locking device includes a base, an actuating element, and a driven latch. The base has a body fixed at the casing and a first slide track passing through the body. The actuating element has a first sliding block passing through the body and moves between a first position and a second position along a first axis via the first sliding block slidingly connected to the first slide track. The driven latch is slidingly disposed at the base and slides between a third position and a fourth position along a second axis. The driven latch and the actuating element are located at two opposite sides of the base. The driven latch has a second slide track and a locking portion. The first sliding block is slidingly connected to the second slide track. | 12-10-2009 |
20120250229 | ELECTRONIC DEVICE, ASSEMBLING METHOD OF ELECTRONIC MODULE AND DISASSEMBLING METHOD OF ELECTRONIC MODULE - An electronic device is provided, which includes a bottom casing, an electronic module, at least a positioning part and an upper cover. The electronic module is disposed in the bottom casing. The positioning part is connected to the electronic module. The upper cover includes a cover body and a positioning portion. The cover body is assembled to the bottom casing. The positioning portion is connected to the cover body. A structural interference between the positioning portion and the positioning part makes the electronic module positioned. In addition, an assembling method of electronic module and a disassembling method of electronic module are also provided. | 10-04-2012 |
20130058027 | FOLDABLE ELECTRONIC DEVICE - A foldable electronic device includes a first body and a second body, in which the second body is pivoted to the first body. The second body includes a display cover, a display module, at least one battery module and a pivot mechanism. The display cover has a display region and a battery cavity, in which the display region is adjacent to the battery cavity and the display module is installed to the display region of the display cover. The battery module is disposed in the battery cavity. The pivot mechanism is disposed between the first body and the second body and adjacent to the side wall of the battery cavity to make the second body rotate relatively to the first body on a pivoting axis. | 03-07-2013 |
20130107477 | ELECTRONIC APPARATUS AND OBLIQUELY FASTENED CIRCUIT BOARD MODULE | 05-02-2013 |
Hung-Chi Chen, Kuei San TW
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20090115273 | MOTOR AND HOUSING THEREOF - A motor includes a motor body and a housing for covering and accommodating the motor body. The housing includes a seat and a cover. The seat has at least one first connecting portion disposed at the circumference of the seat, and the cover has at least one second connecting portion disposed at the circumference of the cover and corresponding to the first connecting portion. The first and second connecting portions are connected by the relative movement of the seat and the cover, so that the seat and the cover can be combined tightly. | 05-07-2009 |
Hung-Chi Chen, Hsinchu TW
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20090015214 | Power factor correction method and device - A power factor correction method and the controller thereof, applied to a boost-type converter, are provided. First, the power factor correction method uses the input and output voltages to generate a reference switching signal. Next, a voltage control circuit uses the difference between the output voltage and a voltage command to get a duty phase. Then, the switching control signal is determined by shifting the phase of the reference switching signal according to the duty phase. Finally, a comparator compares the switching control signal with a triangle waveform signal to determine the switching signal. A power factor controller, which utilizes this method, uses only a single voltage control circuit to get the switching signal to regulate the output voltage and shape the current waveform without sensing current and a current control circuit, so that the complexity of the invented control circuit for the power factor correction is reduced dramatically. | 01-15-2009 |
20150194314 | SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - A method of fabricating a semiconductor device is provided. A substrate having a first region and a second region is provided. A plurality of stacked gate structures are formed on the substrate of the first region. Each stacked gate structure includes a tunneling dielectric layer, a charge storage layer, an inter-gate dielectric layer, and a control gate. A gap exists between two adjacent stacked gate structures. At least one gate structure is formed on the substrate of the second region. A liner layer is conformally formed on the substrate. A dielectric layer covering the liner layer is formed in the second region. A metal silicide layer is formed on the top portion of the gate structure and on the substrate on both sides of the gate structure. A contact process is performed to form a plurality of contacts connected to the metal silicide layer. | 07-09-2015 |
Hung-Chi Chen, Hsinchu City TW
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20130182475 | MULTI-PHASE INVERTER CONTROL DEVICE AND CURRENT CONTROL METHOD FOR THE SAME - The present invention provides a multi-phase inverter control device and a current control method for the same. The multi-phase inverter control device comprises a discrete circuit receiving CT IOCCS, CT IOCS and CT LIVS, and converting them into a plurality of DT signals; a multi-dimensional quantization circuit calculating according to an MDFQCC (Multi-Dimensional Feedback Quantization Current Control) algorithm to obtain DT IOVS for determining a plurality of switching signals; a driver circuit receiving the switching signals, and converting the switching signals into a plurality of switch driving signals; and an inverter circuit receiving the switch driving signals to output voltage across the load. The present invention decreases switching frequency, reduces switching loss and controls the inverter to output current efficiently. | 07-18-2013 |
20140036550 | CONTROL CIRCUIT OF FLYBACK POWER CONVERTER WITH BIDIRECTIONAL COMMUNICAITON CHANNEL - A control circuit of an isolated flyback power converter providing bidirectional communication. The control circuit includes a pulse width modulation circuit, an oscillator, a primary transceiver, a secondary error amplifier and a secondary transceiver. The primary transceiver generates a feedback signal and a pulse-position signal. The secondary error amplifier generates an error signal in accordance with an output voltage of the power converter. The secondary transceiver generates a pulse modulation signal for transmitting the data from the secondary side to the primary side, and generates a frequency signal in response to a switching voltage of the transformer. The frequency signal is demodulated as the data transmitted from the primary side to the secondary side. The feedback signal is correlated to the error signal. The pulse-position signal is correlated to the pulse modulation signal. The error signal and the pulse modulation signal are coupled to an input of an optical coupler. | 02-06-2014 |
Hung-Chi Chen, Tainan City TW
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20130216604 | POLYPEPTIDE FOR INHIBITING METASTASIS, USES THEREOF, AND PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME - A polypeptide for inhibiting, treating or diagnosing metastasis and an use thereof are disclosed, wherein the polypeptide is a polypeptide, a derivative polypeptide, or a mutated polypeptide of a fibronectin-binding domain of dipeptidyl peptidase IV. In addition, a pharmaceutical composition treating or diagnosing metastasis is also disclosed, which comprises the aforementioned polypeptide, and a pharmaceutically acceptable carrier. | 08-22-2013 |
Hung-Chi Chen, Taoyuan County TW
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20130315724 | CENTRIFUGAL FAN WITH AXIAL-FLOW WIND - A centrifugal fan with axial-flow wind includes a centrifugal fan wheel and a cover shell. The centrifugal fan wheel has a rotating core structure and a plurality of centrifugal vanes arranged around the rotating core structure; a circular wind guide surface is disposed on an internal side of the cover shell and around the rotating core structure and covered onto the centrifugal vanes, such that the circular wind guide surface can change a centrifugal airflow at the external periphery of the centrifugal vane into an axial-flow airflow. | 11-28-2013 |
Hung-Chi Chen, Taichung City TW
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20140260870 | VIEWING WINDOW FOR BAND SAW MACHINE - A viewing window for a band saw machine includes a cover plate and a transparent plate mounted between two locating portions of the cover plate and facing a window opening penetrating through external and internal sides of the cover plate, such that the transparent plate is located between the locating portions of the cover plate. Thus, the transparent plate can be quickly and conveniently assembled on the internal side of the cover plate. | 09-18-2014 |
Hung-Chi Chen, Shalu Township TW
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20140260873 | SAW BLADE TENSION ADJUSTING APPARATUS FOR BAND SAW MACHINE - A saw blade tension adjusting apparatus of a band saw machine includes a retaining base, a movable base movably connected with the retaining base through two opposite sliding shafts, and a control unit having a handle and a cam connected with the handle so as to be driven to rotate between a tightening position and a loosening position. When the cam is located at the tightening position, the movable base is lifted by a large diameter portion of the cam to tighten the tension of a saw blade, and when the cam is located at the loosening position, the movable base is moved downwards to lean on a small diameter portion of the cam for loosening the tension of the saw blade. | 09-18-2014 |
Hung-Chi Chen, New Taipei City TW
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20150062793 | ELECTRONIC DEVICE - An electronic device includes a first body, a second body, and a linking assembly. The first body has a first side and a second side opposite to each other, and a sliding slot located at the first side. The first body and the second body are pivoted to the linking assembly. The second body rotates relative to the first side of the first body to open or close and drives the linking assembly, such that the electronic device stands on a platform with the first side or the second side of the first body. The linking assembly has a supporting block movably coupled to the sliding slot. When the second body rotates to an angle relative to the first side, the supporting block protrudes out of the first side so that the electronic device stands on the platform with the first side. | 03-05-2015 |
Hung-Chi Chen, Taichung TW
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20150206814 | LAYER STRUCTURE FOR MOUNTING SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREOF - A fabrication method of a layer structure for mounting a semiconductor device is provided, which includes the steps of: providing a base material, wherein the base material has a conductive layer having a first surface having a plurality of first conductive elements and an opposite second surface having a plurality of second conductive elements, and a first encapsulant formed on the first surface of the conductive layer for encapsulating the first conductive elements; partially removing the conductive layer to form a circuit layer that electrically connects the first conductive elements and the second conductive elements; and forming a second encapsulant on a bottom surface of the first encapsulant for encapsulating the circuit layer and the second conductive elements, thus reducing the fabrication difficulty and increasing the product yield. | 07-23-2015 |