baber/WOPTO huggingface dataset:
Patent KR-20020089871-A (KR)
Title: An optical waveguide device and fabrication method therefor
Inventor: KIM JE MIN
IPC: G02B6/13
Filed: 2001-05-25
Abstract: PURPOSE: An optical waveguide element and a method for fabricating the same are provided to prevent depression and deformation of cores by removing bubbles from a gap between the cores. CONSTITUTION: A lower clad layer is formed on an upper portion of a silicon substrate(20). A lower clad layer(21') as a transparent silica layer is formed by heating a silica layer of the lower clad layer in an electric furnace. A groove is formed by etching the lower clad layer(21'). A core layer is deposited on an upper portion of the lower clad layer(21'). A core(24) is formed by performing an etch process or a polishing process. A silica layer is deposited thereon. An upper clad layer(30') is formed by heating the silica layer. An optical waveguide element can be fabricated by forming a plurality of cores(24,25,26,27,28) between the lower clad layer(21') and the upper clad layer(30').
Patent KR-20020091977-A (KR)
Title: A vacuum cleaner having flexible hose of being able to accommodate
Inventor: KIM HYO SUNG
IPC: A47L9/00
Filed: 2001-06-01
Abstract: PURPOSE: A vacuum cleaner is provided to easily convey the vacuum cleaner and to improve an outer appearance of the vacuum cleaner by accommodating a hose into the vacuum cleaner. CONSTITUTION: A vacuum cleaner(1) includes a connection member(3) for transferring a vacuum force of the vacuum cleaner(1). A hose receiving case(5) is coupled to the connection member(3). A hose connection member(7) and a suction member(9) are sequentially connected to the hose receiving case(5). The vacuum cleaner(1) is equipped with a vacuum generator for generating a vacuum force. The connection member(3) is fixedly connected to the vacuum generator. A flexible hose is fixedly coupled to an inner portion of a free end of the connection member(3), and the hose receiving case(5) is fixedly coupled to an outer portion of the free end of the connection member(3). The hose connection member(7) is connected to the suction member(9).
Patent KR-20020092584-A (KR)
Title: Preparation of anatase type TiO2 ultrafine powders from TiCl4 with acetone by the advanced washing method
Inventor: PAK CHONG SIK
IPC: B22F9/20
Filed: 2001-06-04
Abstract: PURPOSE: A method for preparing anatase-type TiO2 ultrafine powder is provided, to obtain a nano-sized crystalline TiO2 powder with a narrow distribution of particle size by the improved washing process using TiCl4 and acetone. CONSTITUTION: The method comprises the steps of inserting TiCl4 into a reactor charged with inert gas at room temperature, and adding 0.01-90% inorganic acid solution of the stoichiometrical ratio or more to the reactor to prepare a Ti4+ aqueous solution mixed with an inorganic acid; adding acetone to the solution at room temperature to prepare a 0.1-1.4 M Ti4+ aqueous solution; leaving the solution at a temperature of 15-200 deg.C to obtain slurry containing TiO2 particles; filtering the slurry, washing it with alkali halide solution or an acidic solution and filtering it; adding an alkali aqueous solution to the slurry filtrate to adjust the pH to be 2-9; and washing the solution with distilled water and alcohols, filtering and drying the washed one.
Patent KR-20020097469-A (KR)
Title: Mounting structure for hit exchanger of dehumidifier
Inventor: SON YANG MO
IPC: F24F3/14
Filed: 2001-06-21
Abstract: PURPOSE: A heat exchanger coupling structure for dehumidifier is provided to prevent movement of the heat exchanger, while shortening assembly time and permitting assembly to be easily performed. CONSTITUTION: A dehumidifier comprises a heat exchanger(8) where an evaporator and a condenser are formed into a single unit; an orifice for sucking indoor air; a fan housing coupled with the orifice, which has a blower fan(18) installed within the fan housing; a drain pan(10) disposed underneath the heat exchanger, which collects the water discharged from the heat exchanger; and a water container(12) disposed underneath the drain pan, which stores the water collected in the drain pan. An upper mounting unit for supporting the upper surface of the heat exchanger is arranged at the inner surface of the orifice, and a lower mounting unit for supporting the lower surface of the heat exchanger is arranged on the drain pan. The upper mounting unit supports top portions of heat exchanger tubes having different diameters, and the lower mounting unit supports bottom portion of heat exchanger tubes having different diameters.
Patent KR-20020018941-A (KR)
Title: Plasma display panel
Inventor: ASAO SHIGEHARU
IPC: H01J11/44
Filed: 2001-06-28
Abstract: PURPOSE: To improve the contrast ratio in the bright room of the plasma display panel. CONSTITUTION: Plural discharge electrodes having a transparent electrode connected with a bus electrode are arranged inside the front substrate. Or, plural discharge electrodes which have transparent electrode and are capable of discharging respectively between the adjoining electrodes on both sides are arranged inside the front substrate. The front substrate is installed on the side of the display face from which the light generated by the discharge is irradiated outside. A light shutting section which shuts off the light entering from outside is formed on the transparent electrode or along the front substrate. Thereby, the surface reflection is decreased by this light shutting section and the bright room contrast ratio is improved. As the light shutting section is made of the same material as that of the bus electrode, the manufacturing process is prevented from becoming complex. By changing the area of the light shutting section corresponding to the color of the emitting light of the cell, the luminous intensity can be changed for each cell.
Patent KR-20030002250-A (KR)
Title: Method of Manufacturing MOSFET
Inventor: PARK GEUN JU
IPC: H01L27/06
Filed: 2001-06-30
Abstract: PURPOSE: A method for fabricating a metal oxide semiconductor field effect transistor(MOSFET) is provided to simultaneously form a lightly-doped-drain(LDD) and a source/drain and to control the length of a sidewall oxide layer, by using a condition for forming a spacer. CONSTITUTION: A gate oxide layer(110) is formed on a semiconductor substrate(100). A gate electrode(120) is formed on the gate oxide layer. An oxide layer is formed on the gate electrode. An insulation layer block is formed on the sidewall of the gate electrode. A predetermined thickness corresponding to the width of the LDD is removed from the insulation layer block to form an offset region between a channel region of the substrate and a source/drain region of the substrate by an etch process. Impurity ions are implanted into the semiconductor substrate to form a source/drain region(190) of an LDD structure having an offset width by a self-align method.
Patent KR-20030005820-A (KR)
Inventor: LIM GYEONG SU
IPC: H04N5/50
Filed: 2001-07-10
Abstract: PURPOSE: A loop through circuit of a digital ground wave tuner is provided to prevent attenuation of a loop through signal in a weak magnetic field by controlling the level of the loop through signal. CONSTITUTION: A loop through circuit of a digital ground wave tuner(20) includes a signal distributing part(21) distributing an RF signal from an antenna to first and second distributing terminals(D1,D2) and connecting a tuner part(22) to the first distributing terminal; a comparing part(24) comparing AGC voltage from a demodulating part(23) with preliminarily set reference voltage, and providing switching voltage according to the result of the comparison; a switching part(25) connecting to the second distributing part and selecting one of two output terminals according to the switching voltage; an amplifying part(26) connected between one output terminal of the switching part and an RF output terminal; and a signal pass line(P1) connected between the other output terminal of the switching part and the RF output terminal.
Patent KR-20030009948-A (KR)
Title: Apparatus for opening and closing the bung of a annealing furnace
Inventor: KIM SUN RYONG
IPC: C21D1/00
Filed: 2001-07-24
Abstract: PURPOSE: An apparatus for automatically opening and closing bung of an annealing furnace is provided to perform annealing operation promptly and prevent safety accidents of workers by automatically opening and closing the bung installed on the upper part of the annealing furnace for heat treating a coil type strip as a matrix. CONSTITUTION: The apparatus for automatically opening and closing bung of an annealing furnace comprises rails(10) which are longitudinally installed on the upper part of the annealing furnace; first moving part(20) which is installed so that the first moving part(20) is moved back and forth along the rails(10) and consisted of vertical guide rails(22); second moving part(30) comprising a lifting block(32) which is installed so that the lifting block(32) is vertically moved from the inside of the guide rails(22) of the first moving part(20); third moving part(50) comprising a moving arm(52) which is installed so that the moving arm(52) is horizontally moved through the lifting block(32); and a clamping part(70) comprising a clamp(72) which is connectingly fixed to the end part of the moving arm(52) to clamp the bung of the annealing furnace.
Patent KR-20030011194-A (KR)
Inventor: SEO JUNG SOO
IPC: F03B13/14
Filed: 2001-07-27
Abstract: PURPOSE: A wave power generator is provided to continuously generate power and to improve the energy generating efficiency by simultaneously using power of waves. CONSTITUTION: A support(30) contains a buoyant member(14), a housing(10), an accelerating gear box, a generator, a rod gear and a wire(20). An accepting space of the wire is formed in the upper part of the support to offer the flexibility as the moved length of the buoyant member moved by the upward and downward movement of waves. A connecting chain(60) is connected with the lower part of the support. The connecting chain is connected with a concrete body(70). Thereby, a wave power generator is easily connected and installed by extending the wire cable(20).
Patent KR-20020011899-A (KR)
Inventor: EMOTO SHIGENORI
IPC: B23C5/22
Filed: 2001-08-02
Abstract: PURPOSE: To provide a throwaway tip for a pin mirror cutter, which can be used at eight corners, is economically excellent and can improve its machinability and cutting accuracy by making the axial face angle of external peripheral cutting edge positive. CONSTITUTION: The side faces 5 and 6 of a negative tip which is a parallelogram basically are formed by two faces ranging an angle at a point (a) and have a first tip angle ε1 and a second tip angle ε2. R faces 7 and 8 are formed independently of each other in the section where the acute angle corner side section made by the side faces 5 and 6 and upper and lower faces 1 and 2 intersect and the section where an obtuse angle corner section and the upper and lower faces intersect.
Patent KR-20030012979-A (KR)
Title: exposing equipment having a plurality of hard disk drive
Inventor: LEE BYEONG SU
IPC: H01L21/027
Filed: 2001-08-06
Abstract: PURPOSE: An exposure apparatus having plurality of hard disks driven by a mirror method is provided to minimize a loss of operation by using the second hard disk drive for storing the same data as the first hard disk drive. CONSTITUTION: A lens control unit(3) is used for maintaining lens temperature. An input portion(4) receives an input of an operator. A controller(1) receives a command from the input portion(4) and controls operations of the lens control unit(3) and each part according to a predetermined program. A monitor(2) is connected with the controller(1) in order to display a condition of operation. A memory(5) is connected with the controller(1) in order to store an operating system program and various data. The first hard disk drive(20) is used for storing job files and various constant data. The second hard disk drive(30) and the first hard disk drive(20) are driven by a mirror method. The second hard disk drive(30) is used for storing the same data as the first hard disk drive(20).
Patent KR-20030013625-A (KR)
Title: Wafer alignment system in exposing apparatus
Inventor: JUNG DONG SIK
IPC: H01L21/027
Filed: 2001-08-08
Abstract: PURPOSE: A wafer ordering system of an exposure apparatus is provided to minimize yield loss in case of alignment error during alignment process for checking the wafer ordering state. CONSTITUTION: A wafer is loaded on an exposure apparatus(200). The x coordinate of an ordering mark is detected by using an LSA sensor(210). The y coordinate is also detected by the LSA sensor(220,230). If the state of the ordering mark is proved to be right, An EGA process is executed and then exposed(240,250). If not right, the range of alignment error is corrected automatically and alignment sensor is changed from LSA to FIA and then the alignment process is restarted(260).
Patent KR-20020046905-A (KR)
Inventor: KAWAZU ZEMPEI
IPC: H01S5/16
Filed: 2001-08-10
Abstract: PURPOSE: To provide a semiconductor laser that is less in variation, with respect to COD deterioration and is high in reliability. CONSTITUTION: In the semiconductor laser 10 having an oscillation wavelength of 770-810 nm, a disordered area is formed as a window layer 20, by introducing an impurity to an MQW active layer 16 in the vicinity of the end face of the laser 10. The window layer 20 is irradiated with exciting light, and the wavelength λdpl (nm) of the photoluminescence light of the layer 20 is measured. The COD level of a product is predicted in a middle stage of a process, based on degree of a blue shift λbl which is the difference between the wavelength λapl (nm) of the photoluminescence light generated, when the active layer 16 is irradiated with the exciting light and the wavelength λdpl (nm) of the photoluminscence light generated with the window layer 20 is irradiated with the exciting light.
Patent KR-20010088967-A (KR)
Title: An air-lift pump for quantitatively sending the discharge
Inventor: JUNG JONG SIK
IPC: C02F1/74
Filed: 2001-08-28
Abstract: PURPOSE: An air lift pump for transferring a fixed quantity of flow is provided, which can transfer sewage and wastewater from a lower position to a higher position quantitavely and steadily notwithstanding changes of water level without any plugging of the pump with sludge or solid material. CONSTITUTION: The system comprises the followings: (i) a tank that is divided into a flow control tank (10) and a quantitative injecting tank (20); and (ii) a T-pipe (2) of an air lift pipe (11) with an open bottom end, to the air lift pipe an air pipe being branched, the air flowing through the air lifting pipe (11) aspirates water in the pipe to suck water in the flow control tank (10) to the T-pipe (2), the T-pipe (2) having two open ends, one being a first discharge hole (5) for discharging to the flow control tank (10) and the other being a second discharge hole (6) for discharging to the quantitative injecting tank (20).
Patent KR-20030018397-A (KR)
Title: Apparatus connectable to Internet having a function for generating internet address automatically
Inventor: CHOI JUN HO
IPC: H04L29/06
Filed: 2001-08-28
Abstract: PURPOSE: A device for automatically creating an Internet address is provided to remove a process of setting an inherent MAC(Media Access Control) address by automatically generating own MAC address. CONSTITUTION: A random address generator(130) randomly generates an address whenever accessing the Internet without fixed address. The random address generator(130) generates the first address of 2 bytes which are portion of an address(6 bytes) to be used for an Internet DVD(200) whenever the Internet DVD(200) accesses the Internet or be operated. A graphic/Internet processor(120) includes the second address of 4 bytes which are used in the same kind of product in common. Thus, the graphic/Internet processor(120) combines the first address with the second address, and creates an address to be used at a device. An Ethernet controller(124) accesses the Internet with an address supplied in the graphic/Internet processor(120).
Patent KR-20030023197-A (KR)
Title: Pre align chuck
Inventor: BAE DU SEOP
IPC: G02F1/13
Filed: 2001-09-12
Abstract: PURPOSE: A pre-align chuck is provided to minimize the friction force applied to a substrate for realizing uniform grade of force and reproducibility of position coordinates of the substrate. CONSTITUTION: A pre-align chuck(33) includes holes(41) of which size becomes small toward the center(R3) and large toward edges(R1) in the direction of axis X, while the size of the holes are equal from the center(R3') to edges(R1') in the direction of axis Y. The total area of the holes formed in the pre-align chuck is equal to conventional one.
Patent KR-20030024353-A (KR)
Inventor: HWANG GYU HEON
IPC: G11B17/028
Filed: 2001-09-18
Abstract: PURPOSE: A disk placement structure of a spindle motor for an optical disk drive is provided to reduce the number of parts, assembly procedures and costs by eliminating the need of using a clamp for fixing the optical disk. CONSTITUTION: A disk placement structure comprises a main body; a spindle motor(110) mounted on the main body, and which has a rotation shaft(112) having an exposed end; a T-bush(150) having a center coupled to the exposed end of the rotation shaft; a turn table(120) having a perforation hole(122), and a center fixed to the T-bush; a ring-shaped support member(130) attached to the edge of the upper surface of the turn table; a disk(140) mounted on the upper surface of the support member; and an air evacuation plate(170) arranged underneath the turn table, and which evacuates air from a space(160) formed between the disk and the turn table upon rotation of the turn table.
Patent KR-20020083101-A (KR)
Inventor: KOJIMA TAKAO
IPC: B60T7/06
Filed: 2001-09-19
Abstract: PURPOSE: To provide a pedal device for a vehicle which can add a proper reaction force to a pedal. CONSTITUTION: This device is equipped with a pedal reaction force adding means 4 to the pedal 1 of the vehicle, a stepping force detecting means 2 which detects the force applied to the pedal 1, and a pedal reaction force control means 3 which adjusts the output of the pedal reaction force adding means 4. The pedal reaction force control means 3 adjusts the output of the pedal reaction force adding means 4 according to the output of the stepping force detecting means 2. Only when the vehicle is completely at a stop, the reaction force added to the pedal is set and the safety of passengers including a driver can be secured. When the vehicle is traveling, the pedal reaction force control means 3 adjusts the reaction force to the pedal 1 according to the driving environment of the vehicle and an intention judgment of pedal operation made by the driver in the driving environment. When the driver does not intend to operate the pedal, the foot can lightly and sufficiently be placed on the pedal 1, but when the driver intends to operate the pedal, strong and smooth pedal operation is actualized.
Patent KR-20030028655-A (KR)
Title: Method of recording servo data
Inventor: JUNG U CHEOL
IPC: G11B5/55
Filed: 2001-09-25
Abstract: PURPOSE: A servo information recording method is provided to record servo information on each area with optimum track pitch. CONSTITUTION: A servo information recording method includes the steps of computing an optimum TPI(Track Per Inch) per section after distinguishing a disc into a plurality of sections(P1,P2,P3,...Pn) in the radial direction, determining a rotation angle of an actuator head per section for satisfying the computed optimum TPI, and recording the servo information to the respective sections by rotating the actuator head according to the determined rotation angle. The rotation angle of the actuator head differs by the skew angle of the actuator head.
Patent KR-20030028901-A (KR)
Title: Time lapse video cassette recorder
Inventor: KIM DONG WON
IPC: G11B20/10
Filed: 2001-10-04
Abstract: PURPOSE: A time-lapse video cassette recorder is provided to selectively record the required parts only by detecting the change of motions of image signals. CONSTITUTION: A time-lapse video cassette recorder includes a switching part(120) for alternatively outputting image signals transmitted by a plurality of cameras(110), a motion detecting part(160) for detecting the change of motions of the image signals by comparing the input image signals with stored recording reference signals, a recording/reproducing part(130) for recording the image signals output from the switching part to a recording medium per frame, and a control part(140) for controlling the recording/reproducing part to record image signals of frame in which motion change is detected.
Patent KR-20030033309-A (KR)
Title: Structure for opening a tail gate of an vehicle
Inventor: YOO BYEONG SEOP
IPC: B60J1/18
Filed: 2001-10-20
Abstract: PURPOSE: Structure for opening a tailgate of a vehicle is provided to prevent one's hand from being held between a garnish and an outside handle. CONSTITUTION: Structure for opening a tailgate of a vehicle comprises a tailgate forming a forming part(10) on an outer side; a bracket(30) fixed to the forming part of the tailgate; an outside handle(5) hinging on the bracket to interlock an interlocking lever(20) rotatably coupled to the bracket, to interlock a release rod; a garnish(40) disposed on the forming part, to prevent the outside handle and the bracket from being exposed outside; and a clearance-preventing device(100) to shut off clearance between the lower end portion of the garnish and the lower end portion of the outside handle and prevent one's hand from being held. The clearance-preventing device comprises a sub-bracket(110) fixed to the lower inner side of the garnish; a torsion spring(120) rotatably coupled to the sub-bracket; and a shut-off plate(130) slidably installed to the lower surface of the garnish.
Patent KR-20030033405-A (KR)
Title: Apparatus and control method for vailable protection channel in communication system
Inventor: RYU GIL SU
IPC: H04L12/00
Filed: 2001-10-22
Abstract: PURPOSE: A variable protection channel device of a communication system and a method for controlling the same are provided to variably adjust the ratio of operation channels and protection channels when protecting channels in the communication system, so as to adjust a channel protection ratio for flexible operation. CONSTITUTION: A control signal generator(110) controls a channel part in which a fault is generated to be switched to a channel part in which a fault is not generated among a plurality of channel parts(120-150), to process an input signal. The plurality of channel parts(120-150) receives and processes a control signal(C#) of the control signal generator(110) and a channel input signal(C_IN_#), to provide a data service. And a channel connection part(160), if a fault is generated, connects a channel part in which the fault is generated to a channel part in which the fault is not generated, to lead a signal inputted to the channel part in which the fault is generated to be inputted and processed in the channel part in which the fault is not generated.
Patent KR-20030035340-A (KR)
Title: Method for connecting wireless Internet using macro function
Inventor: LEE GI WAN
IPC: H04L12/28
Filed: 2001-10-31
Abstract: PURPOSE: A wireless internet connection method using a macro function is provided to memorize frequently used wireless Internet addresses in macro, thereby capable of obtaining information desired without various paths. CONSTITUTION: When a mobile communication terminal including a macro function is connected to a wireless Internet, it is discriminated whether the activation of the macro function is performed(S30). When the activation of the macro function is not performed, it is discriminated whether the activation of the macro execution function is performed(S300). When an activation of the macro execution function is performed, a macro address list is displayed(S400). Thereafter, at least one macro address is selected(S500) and then information corresponding to the macro address is displayed(S600).