baber/WOPTO huggingface dataset:
Patent KR-20040020093-A (KR)
Title: Electron gun for cathode ray tube
Inventor: BAE MIN CHEOL
IPC: H01J29/48
Filed: 2002-08-29
Abstract: PURPOSE: An electron gun for a CRT is provided to reduce noises due to a dynamic focus voltage. CONSTITUTION: An electron gun for a CRT comprises a triode including a cathode, a first and a second electrodes spaced apart from the cathode, a plurality of electrodes disposed near the second electrode and receiving a dynamic voltage synchronized with a positive voltage or a deflection signal of electron beams, an anode electrode spaced apart from the electrode arranged at the farthest from the cathode, a support body for supporting the electrodes in such a manner that the electrodes are arranged in a predetermined gap, and an electrode(28g) formed by coupling at least two sub electrodes(280g,282g).
Patent KR-20040020426-A (KR)
Title: cis-Retinoid Derivatives And Methods For Producing Said Compounds And An Anti-cancer Pharmaceutical Composition Comprising Said Compounds
Inventor: BAEK DAE HEON
IPC: C07C403/20
Filed: 2002-08-30
Abstract: PURPOSE: Retinoid derivatives in cis form having substantially different chemical structure while having increased antitumor effects but reduced negative side effects compared with the conventional retinoid compounds, are provided. CONSTITUTION: The retinoid derivatives are represented by formula (I) and can be in cis form especially at the position of 9 and/or 13, wherein X is O, NH or S; R1 and R2 are the same or different, and independently -OH, -SH, -NH2, -COOH, -R(CH2)mCH3, -RCOCO(CH2)mCH3, -RCO(CH2)mCHCH3CH3, -RCO(CH2)mNR4CH3, -RCOCHOH(CH2)mCH3, -RCOCH2(CH2)m(CH)3, -RCOCH2CHOH(CH2)mCH3, -RCOCH2(CH2)mCOOH, -RSO2CH2(CH2)mCH4, -RPO2(OH)CH2(CH2)mCH3 or -RCOCH(NHCOCH3)CH2CH2CONH2; and R3 is H, wherein R is CH2, O, NH or S, R4 is H or C1-C6 alkyl, and m is an integer of 0 to 5.
Patent KR-20040021955-A (KR)
Title: Atmospheric pressure plasma surface treatment apparatus and method for polymer
Inventor: HONG JEONG MI
IPC: C08J7/00
Filed: 2002-09-06
Abstract: PURPOSE: Provided are a device and a method for modifying a polymer surface using atmospheric plasma, which is economically and ecologically favorable and is suitable for an in-line system. CONSTITUTION: The device comprises a first electrode(21); a second electrode(22); and a spraying duct(23) disposed between the first electrode(21) and the second electrode(22) and formed of a dielectric body providing a space for generating plasma, wherein the plasma(29) is generated by applying an AC power to both electrodes so as to cause the discharge in the reaction gases introduced to the spraying duct(23), and the plasma(29) is sprayed to a polymer(26) so that the surface of the polymer is modified. In addition, the method for modifying a polymer surface by using atmospheric plasma substitutes for the step using an organic solvent or an organic primer before the adhesion step, or excludes the washing and drying steps.
Patent KR-20040022010-A (KR)
Title: Optical pickup employing Twin-light source
Inventor: KIM GEON SU
IPC: G11B7/125
Filed: 2002-09-06
Abstract: PURPOSE: An optical pick-up employing a 2-wavelength light source module is provided to secure a sufficient control range for correcting a relative position difference according to propagation paths of beams emitted from two light sources of the light source module. CONSTITUTION: An optical pick-up includes a light source module(10), an object lens(35), a collimating lens(31), a beam path converter, a photo-detector(39), and an optical element(50). The light source module has the first and second light sources that emit the first and second beams having different wavelengths. The object lens condenses the first and second beams to form beam spots on a recording plane of a recording medium. The beam path converter changes propagation paths of the first and second beams. The photo-detector receives the first and second beams to detect an information signal and/or an error signal. The optical element serves as a lens only for one of the first and second beams to correct a position difference according to the propagation paths of the first and second beams.
Patent KR-20040024352-A (KR)
Title: PCB Tester
Inventor: LEE HO DEOK
IPC: H05K3/00
Filed: 2002-09-14
Abstract: PURPOSE: A test apparatus is provided to test short circuit of printed circuit board and resistance or impedance in an accurate and rapid manner. CONSTITUTION: A test apparatus comprises a main computer(10) where test software and test data are stored; a size measurement unit(20) for measuring the thickness of the printed circuit board, and thickness or width of the wire; and an electrical characteristics measurement unit(30) for measuring electrical characteristics of the printed circuit board. The electrical characteristics measurement unit includes a plurality of input side multiplexer modules(120) connected to the main computer through input/output interfaces(110), wherein the input side multiplexer modules distribute the test signal current in accordance with the control of the main computer; a detection pin fixture having the input side connected to the multiplexer modules, wherein the detection pin fixture has a plurality of detection pins corresponding to the test points of the printed circuit board; a plurality of output side multiplexer modules(140) connected to the output side of the detection pin fixture, wherein the output side multiplexer modules distribute the signal current passed through the printed circuit board; and A/D converters(150) connected to the rear ends of the output side multiplexer modules, wherein the A/D converters convert the signal current into a multi-channel digital signal and transmit the digital signal to the main computer.
Patent KR-20040029693-A (KR)
Title: Method for Making Molten Steel by Converter
Inventor: JUNG UI JUN
IPC: C21C5/30
Filed: 2002-10-02
Abstract: PURPOSE: A converter blowing method is provided which is capable of reducing content of P in hot metal more effectively by properly controlling oxygen blowing pattern according to content of Si in hot metal during converter blowing of low£Si|hot metal. CONSTITUTION: In a method for performing blowing in a converter using hot metal containing 0.3 wt.% or less of Si, the converter blowing method comprises the steps of dividing a blowing pattern from blowing initiation to blowing finishing into a section from blowing initiation to 5%, a section of 5 to 15%, a section of 15 to 20%, a section of 20 to 27%, a section of 27 to 55%, a section of 55 to 67%, a section of 67 to 73%, a section of 73 to 80% and a section of 80 to blowing finishing for the total blowing time based on blowing time; controlling an oxygen flow rate to 60,800 to 67,200 Nm¬2/hr in the section from the blowing initiation to 5%, controlling it to 57,000 to 63,000 Nm¬2/hr in the section of 5 to 15%, controlling it to 51,300 to 56,700 Nm¬2/hr in the section of 55 to 67%, controlling it to 54,150 to 59,850 Nm¬2/hr in the section of 67 to 73%, controlling it to 57,000 to 63,000 Nm¬2/hr in the section of 73 to 80%, and controlling it to 60,325 to 66,675 Nm¬2/hr in the section of 80 to the blowing finishing; controlling an oxygen flow rate to 46,850 to 47,150 Nm¬2/hr if content of Si in the hot metal is 0.3 to 0.21 wt.%, controlling it to 45,275 to 45,725 Nm¬2/hr if content of Si in the hot metal is 0.20 to 0.11 wt.%, and controlling it to 43,700 to 44,300 Nm¬2/hr if content of Si in the hot metal is 0.10 wt.% or less in the section of 15 to 20%; controlling an oxygen flow rate to 42,850 to 43,150 Nm¬2/hr if content of Si in the hot metal is 0.3 to 0.21 wt.%, controlling it to 40,275 to 41,725 Nm¬2/hr if content of Si in the hot metal is 0.20 to 0.11 wt.%, and controlling it to 39,700 to 40,300 Nm¬2/hr if content of Si in the hot metal is 0.10 wt.% or less in the section of 20 to 27%; and controlling an oxygen flow rate to 46,850 to 47,150 Nm¬2/hr if content of Si in the hot metal is 0.3 to 0.21 wt.%, controlling it to 45,275 to 45,725 Nm¬2/hr if content of Si in the hot metal is 0.20 to 0.11 wt.%, and controlling it to 43,700 to 44,300 Nm¬2/hr if content of Si in the hot metal is 0.10 wt.% or less in the section of 27 to 55%.
Patent KR-20040031120-A (KR)
Title: Variable numbering board and Method for changing numbers
Inventor: EOM JANG PIL
IPC: G09F9/46
Filed: 2002-10-04
Abstract: PURPOSE: A variable number board and a method for changing a number are provided to set up or change easily the number by pushing each element of the number board without using an additional switch. CONSTITUTION: A variable number board includes a main body, a timer module(40), a switch module(50), a sensing module(70), a recovery unit(60), a storage module(80), a control module(30), a plurality of number display elements, and a spring. The main body includes a plurality of opening portions to display numbers. The timer module(40) is used for measuring a time limit and a period of time. The switch module(50) is used for generating a start signal for setting or changing the numbers and an end signal for setting or changing the numbers. The sensing module(70) is used for sensing each pushing state of the number board elements and transmitting the sensed results to the control module(30). The recovery unit(60) performs each protruding operation and each subsiding operation of the number board elements. The storage module(80) is used for storing data transmitted among the control module, the other modules, and the recovery unit. The control module(30) is used for controlling operations of the modules and the recovery unit. The number display elements are projected or depressed through the opening portions of the main body. The spring is used for providing the contractile force and the repulsive force.
Patent KR-20030032844-A (KR)
Title: Process for preparing 3-hydroxyesters from epoxide derivatives
Inventor: CHO HYEONG SU
IPC: C07C67/48
Filed: 2002-10-04
Abstract: PURPOSE: A method for preparing 3-hydroxyester from an epoxide derivative is provided, to enable the catalyst system used to the reaction to be recovered and reused easily and effectively. CONSTITUTION: The method comprises the steps of reacting an epoxide, carbon monoxide and an alcohol in a solvent in the presence of a catalyst system comprising a catalytic amount of a cobalt compound and optionally an effective amount of an accelerator at a temperature of 30-150 deg.C and a pressure of 50-3,000 psig, to prepare 3-hydroxyester or its derivative; separating the obtained product and the solvent from the cobalt compound and the accelerator at an absorption tower of -30 to 200 deg.C by using an inert gas; and returning the separated cobalt compound and accelerator partially or totally into the first step. Preferably the cobalt compound is Co2(CO8) and the accelerator is selected from imidazole, pyridine, pyrrole, pyrazine, pyrazole, pyrimidine, piperidine and their derivatives.
Patent KR-20030029037-A (KR)
Title: Electro-optic device and electronic apparatus
Inventor: MURADE MASAO
IPC: G02F1/1343
Filed: 2002-10-04
Abstract: PURPOSE: An electro-optical device and an electronic apparatus are provided to prevent the light-dark pattern caused by a pattern portion comprising wiring and circuit elements provided in a picture frame region from being projected near the edge of a display image in the electro-optical device such as a liquid crystal device. CONSTITUTION: An electro-optical device is composed of a display electrode disposed in an image display region(10a) on a TFT(Thin Film Transistor) array substrate(10), and a pattern portion comprising at least one of wiring and a circuit element connected to the display electrode directly or through a pixel switching element and provided in the frame region which defines the periphery of the image display region. The electro-optical device is further provided with a lower shielding film for covering at least a portion of such a pattern portion from the TFT array substrate side in a part of the picture frame region.
Patent KR-20040035523-A (KR)
Title: Positioning System by Differance Signal with Network
Inventor: AHN HEUI TAY
IPC: H04B7/26
Filed: 2002-10-22
Abstract: PURPOSE: An apparatus for transmitting signals with different speeds to several places and recognizing a current position, and a method therefor are provided to simultaneously transmit the signals with the different speeds, calculate a distance according to a receiving time of each signal, combine the calculated distances, and obtain the current position. CONSTITUTION: Devices transmit signals with two or more different speeds. A network communicates between the devices. A device receives the signals with two or more different speeds, and calculates a distance. The transmission sequence of the signals with two or more different speeds is decided.
Patent KR-20040036256-A (KR)
Title: Cushion from polyethylene terephtalate
Inventor: JUNG U YEONG
IPC: B65D81/00
Filed: 2002-10-24
Abstract: PURPOSE: Provided is a cushioning material for package, which gives solidity and reliability of package, and is recovered and reutilized with a high efficiency to reduce the cost needed for distribution of products and to prevent environmental pollutions. CONSTITUTION: The cushioning material is used for protecting the content in a package from outside attacks when a product such as an electronic product is packaged. The cushioning material(40) is made of polyethylene terephthalate(PET) and comprises a plurality of tubular members. Particularly, each tubular member comprises an outer wall formed of PET film, and an air inlet(46) for introducing and discharging airs in an air layer between one outer wall and another outer wall.
Patent KR-20040036357-A (KR)
Title: Optical switch
Inventor: BOO JONG UK
IPC: G02B26/00
Filed: 2002-10-24
Abstract: PURPOSE: An optical switch which is driven by low power is provided to reduce power consumption by maintaining a driven state of an operation part without applying a current or a voltage continuously to a driving apparatus. CONSTITUTION: An operation part(121) is installed on an optical path and blocks or reflects a light. A magnetic body(122) is attached to an upper plane of the operation part, and operates the operation part by magnetic force. A spring(123) recovers the operation part by being fixed to both sides of a rear part of the operation part. And an electric magnet(124) operates the operation part by magnetic force by being installed around the operation part. The electric magnet maintains an electromagnetic force continuously without an external input, by installing a ferromagnetic core(126) in a coil(125) where a current is applied.
Patent KR-20020089252-A (KR)
Inventor: KIM GYEONG CHEOL
IPC: H04B1/40
Filed: 2002-10-26
Abstract: PURPOSE: A portable phone having an abbreviated key for a prepayment telephone card call mode is provided to perform various calls including an international call according to a prepayment telephone card method using the minimum input of number by installing the abbreviated key for mutually converting a deferred payment type telephone method and a prepayment telephone card call method, and previously inputting a prepayment telephone card company connection number, a card intrinsic number, and an object telephone number. CONSTITUTION: An abbreviated key(21) for a prepayment telephone card call mode is composed in a key input unit(20) for mutually converting a deferred payment type call mode and a prepayment telephone card type call mode. When a prepayment telephone card call mode conversion signal is generated from the abbreviated key(21), a controller(10) converts a call mode from the deferred call mode to a prepayment telephone card type call mode, and automatically dials numbers necessary for the prepayment telephone card type call including the prepayment telephone card company connection number and the card intrinsic number stored in a memory(40). If a user inputs only a number after automatic dial and pushes a call start button(22), the control unit(10) dials all numbers necessary for the prepayment telephone card type call for performing the prepayment telephone card type call.
Patent KR-20030047719-A (KR)
Title: Cross-over for quasi-coaxial transmission lines fabricated on a substrate
Inventor: DOVE LEWIS R
IPC: H01P3/06
Filed: 2002-10-28
Abstract: PURPOSE: A quasi-coaxial transmission device fabricated on a substrate is provided to rectangularly intersect with each other on the substrate by making the edge of an upper half ground shielding portion come in contact with the outer surface or ground surface of a lower half ground shielding portion. CONSTITUTION: A substrate(2) is prepared. The first quasi-coaxial transmission line is formed on the substrate, constituted of a ground surface(3), a lower half layer(4) of KQ dielectric substance, a center conductor(5), a top half layer(6) of the KQ dielectric substance and a ground shield(7). The second pseudo coaxial transmission line intersects at right angles with the first transmission line on the substrate, constituted of the ground surface, a bottom half layer(9) of the KQ dielectric substance, a center conductor(10), a top half layer(11) of the KQ dielectric substance and a top half ground shield(12).
Patent KR-20040040664-A (KR)
Title: Preparation method of high molecular weight polycarbonate resin
Inventor: HONG MI JEONG
IPC: C08G64/40
Filed: 2002-11-07
Abstract: PURPOSE: A method for preparing polycarbonate resins having high molecular weight is provided to maximize the speed for increasing the molecular weight of polycarbonate resins on solid phase polymerization, and to produce polycarbonate resins having high molecular weight in a short time with high efficiency. CONSTITUTION: The method for preparing polycarbonate resins having a weight average molecular weight of 35,000 to 200,000 g/mol comprises the steps of: (a) performing melt polycondensation of dialkyl(aryl) carbonate and an aromatic hydroxy compound in the presence of a catalyst to form non-crystalline polycarbonate having a weight average molecular weight of 1,500-30,000 g/mol; (b) dissolving the non-crystalline polycarbonate in a solvent to form non-crystalline polycarbonate solution; and (c) transferring the non-crystalline polycarbonate solution to a solid phase polymerization reactor to perform crystallization and solid phase polymerization simultaneously.
Patent KR-20040041743-A (KR)
Title: Device for a warrior robot and method for controlling the robot
Inventor: HA IN YONG
IPC: B25J13/00
Filed: 2002-11-11
Abstract: PURPOSE: A fight robot and control method thereof is provided to freely control the driving of the robot by using communication data and outer physical data memorized in a memory unit. CONSTITUTION: A fight robot is composed of a data detecting unit(130) for detecting outer physical data(190), a communication unit(140) having a transmitting unit and a receiving unit, a memory unit(120) memorizing the detected data and the transmitting or receiving data, a control unit(110), and a driving unit(160). The control unit controls the driving unit on the basis of the memorized data.
Patent KR-20040041991-A (KR)
Title: Dna/rna transduction technology and its clinical and basic applications
Inventor: CHAE UK JIN
IPC: C12N15/87
Filed: 2002-11-12
Abstract: PURPOSE: A method for transduction of DNA/RNA and the use thereof are provided, thereby effectively transferring DNA/RNA, which encodes a material controlling bio-function, into cytoplasm or nucleus of eukaryote or prokaryote cells in vivo and in vitro. CONSTITUTION: A method for transduction of DNA/RNA comprises the steps of: (i) constructing a recombinant expression vector containing DNA encoding a DNA/RNA binding factor or one or more binding proteins containing a DNA/RNA binding domain, DNA encoding PTD(protein transduction domain), and an expression controlling sequence; (ii) expressing the recombinant expression vector in a host cell to obtain a fusion protein; (iii) chemically or physically and covalently or noncovalently binding one or more bio-function controlling materials selected from the fusion protein and protein, DNA/RNA, fat, carbohydrate and chemical compounds to obtain a binding complex; and (iv) injecting the binding complex into the cells in vivo or in vitro.
Patent KR-20040042013-A (KR)
Title: Blower fan
Inventor: JUNG HYEON SEOK
IPC: F04D29/04
Filed: 2002-11-12
Abstract: PURPOSE: A blowing fan is provided to prevent a rotating shaft of the blowing fan from being erroneously assembled by allowing the rotating shaft to be inserted into the blowing fan only when a supporting member matches with a support section of the rotating shaft. CONSTITUTION: A blowing fan includes a body(10), and a plurality of blades(20) formed at an outer peripheral wall of the body(10). A fixing section(11) into which a rotating shaft(30) having a cylindrical shape is inserted is formed at the center of the body(10). A circular fixing hole(12) into which the rotating shaft(30) is inserted is formed at the center of the fixing hole(12). The rotating shaft(30) has a support section(31) having a planar shape. A supporting member(40) is provided between the support section(31) and the fixing hole(12).
Patent KR-20040042031-A (KR)
Title: Control method for sound mode of mobile telecommunication terminal equipment
Inventor: LEE SEONG JIN
IPC: H04B1/40
Filed: 2002-11-12
Abstract: PURPOSE: A sound mode control method of a mobile communication terminal is provided to automatically change a sound value which has been previously set for an external unit by sensing mounting of the external unit. CONSTITUTION: Various sound modes are previously set(S1). Whether an external unit is mounted or separated is checked on the basis of a signal of a specific port of a terminal(S2,S3). If an external unit is mounted, a current mode is stored as a previous mode(S4) and a currently mounted external unit mode is activated as a current mode(S5). When a call is received, a reproduced sound is externally outputted in the corresponding mode(S6). If the external unit is separated, the stored previous mode is activated as a current mode(S7). When a call is received, a sound is outputted in the corresponding mode(S8).
Patent KR-20030040117-A (KR)
Inventor: STOLLER VIKTOR
IPC: C22B7/00
Filed: 2002-11-13
Abstract: PURPOSE: A process for recovery of valuable metals from superalloys by electrochemical decomposition is provided in which both electrodes are formed by the superalloy, and the polarity of the electrolysis current is reversed with a frequency of from 0.005 to 5 Hz. CONSTITUTION: The process for recovery of valuable metals from superalloys comprises the step of decomposing the superalloys electrochemically, wherein the superalloys are used both as the anode and as the cathode, and the polarity of the electrolysis current is reversed with a frequency of from 0.005 to 5 Hz, wherein the superalloy contains one or more of the metals Co, Ni, Cr or Al as major constituents and one or more of the elements Ta, Re, W, Mo, Hf or Pt as minor constituents, wherein the superalloy contains from 1 to 10 wt. % of Re, wherein the electrochemical decomposition is carried out with an electrolysis voltage of from 2 to 6 volts at a constant electrolysis current, wherein an inorganic acid is used as the electrolyte, wherein an oxygen free inorganic acid is used, and wherein as a result of the electrochemical decomposition, the elements Co, Ni, Cr and Al are obtained as salts dissolved in the electrolysis brine and the elements Ta, W, Hf and Pt are obtained as filterable oxides, so that essentially quantitative separation of the two element groups can be carried out by filtration of the electrolysis brine.