baber/WOPTO huggingface dataset:
Patent KR-20010046325-A (KR)
Title: Method for purifying paraffin
Inventor: AHN IL SEON
IPC: C07B63/00
Filed: 1999-11-11
Abstract: PURPOSE: A method for purifying paraffin is provided which effectively removes impurities containing olefin and oxygen from the paraffin step by step. CONSTITUTION: The method comprises steps of: (i) reacting C3-4 paraffin compound containing 1-5,000 part per million of impurities containing 0.1-50 wt.% of C3-6 olefin and oxygen with adding hydrogen thereto in the presence of metal catalyst; (ii) removing the remainder hydrogen after the hydrogenation reaction; and (iii) removing the impurities containing the oxygen by using an absorbent selected from 13X zeolite, 4A zeolite, 5A zeolite or mixtures thereof.
Patent KR-20010047209-A (KR)
Inventor: LIM O GYU
IPC: B22D46/00
Filed: 1999-11-18
Abstract: PURPOSE: A method for predicting quality using a weight and a neural network in a mini mill process is provided to increase production efficiency by employing a method suitable to the mini mill process so that reliability on quality prognosis results is increased. CONSTITUTION: In a method for predicting quality in a mini mill process in which a hot rolled product is continuously produced in the slab casting, the method comprises an operation quality predicting step calculating codes and grades of the operation quality, comparing with target design values and picking out deviations thereof; a billet passing process judging step of judging a decision to pass or fail by comparing a quality prediction value predicted at the operation quality predicting step, billet constituents and the internal standard for the passing process, and instructing replacement of the materials in case of fail; a continuous casting quality predicting step of predicting quality predicting specificity codes and grades on the continuous casting products; and an abnormality management step of instructing replacement of the materials, typical size rolling or bar S-P (sulphur print) by judging as an abnormal quality when the deviation exceeds the standard value after comparing the prediction specificity value predicted in the continuous casting quality predicting step with the design specificity value.
Patent KR-20010047689-A (KR)
Inventor: SEO JONG DEOK
IPC: C23C2/08
Filed: 1999-11-23
Abstract: PURPOSE: A cold rolled steel sheet and a tin plated steel sheet are provided which have superior surface glossiness after plating by controlling an average roughness as well as a roughness peak per inch, thereby minimizing scattering of an incident light. CONSTITUTION: The cold rolled steel sheet has 1.0 to 2.5 microns of an average roughness of the surface thereof, and 60 to 80 of peak value of roughness of the surface thereof. The tin plated steel sheet has 1.0 to 2.5 microns of an average roughness of the surface thereof, 60 to 80 of roughness peak per inch and 200 or more surface glossiness of the surface thereof. In a method for manufacturing a tin plated steel sheet by tin plating the skin-pass rolled steel after skin-pass rolling a cold rolled steel sheet using a skin-pass rolling mill, the method comprises the processes of providing roughness on a work roll of the skin-pass rolling mill by the roto blaster in a revolution of 1150 to 1200 rpm for 2 to 4 minutes as supplying grits having a size of 0.5 to 1.0mm from a dull machine to a roto blaster; and tin plating the skin-passed steel sheet after skin-passing the cold rolled steel sheet so that an average roughness and a roughness peak per inch of the surface of the cold rolled steel sheet are 1.0 to 2.5 microns, and 60 to 80 respectively.
Patent KR-20000035730-A (KR)
Title: Semiconductor device
Inventor: ONO ATSUSHI
IPC: H01L21/60
Filed: 1999-11-26
Abstract: PURPOSE: A semiconductor device is provided which is particularly a semiconductor device of an area pad type. CONSTITUTION: An interconnection or active element (3) is formed on a substrate (1), and an electrode pad (5) is formed on the interconnection or active element (3) with an interlayer insulating film (4) therebetween. A projected electrode (7) is formed on the surface of the electrode pad (5) for protecting the interconnection or active element (3) during bonding to an external terminal.
Patent KR-20010048342-A (KR)
Inventor: JUN IN HAK
IPC: H04B1/16
Filed: 1999-11-26
Abstract: PURPOSE: An automatic volume compensator for car radio system entering weak electric field is provided to input soft mono point signal so that radio listener can hear less noise by converting stereo sound into mono sound. CONSTITUTION: An antenna(1), an AM/FM tuner(2), a tape deck system(3), a compact disk player(4), an amplifier(5), and a speaker(6) are components of a normal automobile radio system. A volume compensator(7) is placed between input and output terminal of the amplifier(5). The volume compensator(7) inputs the output of the amplifier(5) as feedback signal, and outputs compensation signal to the amplifier(5). The AM/FM tuner(2) outputs SMPS(Soft Mono Point Signal) to the volume compensator(7). A control signal is implemented to the volume compensator(7) to convert stereo sound to mono sound automatically when an automobile passes through a weak electric field area in the state where SMPS receives radio broadcasting wave through the AM/FM tuner(2).
Patent KR-20010054083-A (KR)
Inventor: LEE MUN HEE
IPC: C02F11/02
Filed: 1999-12-03
Abstract: PURPOSE: A bio-gas manufacturing method is provided, which can produce bio-gas of good quality by crushing and fermenting various wastes of organic waste and excretions. This bio-gas can be used as household heating energy or electricity, and the fermented residue can be used as composite that is sterilized and rich in nutrient. CONSTITUTION: The system comprises the followings: (i) a first collecting tank (1) for collecting excrement and for storing; (ii) a second collecting tank (3) for crushing solid organic matters such as food waste to a definite particles and for storing; (iii) a low temperature sterilizing tank (4) which is connected to the second collecting tank (3) and in which a heater is installed for agitating and sterilizing solid of the primarily crushed; (iv) a first and a second fermentation tanks (5,6) in which heater and agitator are installed for agitating excrement and crushed solid and heating to a fixed temperature to ferment serially; (V) a residue storage tank (7) for storing the fermented residue; and (vi) a gas storage tank (8) of synthesized resin material for collecting bio-gas.
Patent KR-20010054261-A (KR)
Title: Alloy for transmission gear
Inventor: CHO BONG RAE
IPC: C22C38/12
Filed: 1999-12-04
Abstract: PURPOSE: An alloy is provided which reduces a P content for preventing intergranular brittleness by increasing a Mo content for strengthening quenching, increasing toughness and obtaining secondary reinforcement effect and adding a small amount of Nb, C and Ti for grain micronization not adding formed elements on a surface layer or above Cr and Si. CONSTITUTION: The alloy for a transmission gear comprises a main constituent of Fe, 0.17 to 0.23 wt.% of C, 0.01 wt.% or less of Si, 0.3 to 0.5 wt.% of Mn, 0.01 wt.% or less of P, 0.015 wt.% of S, 0.01 wt.% or less of Cr, 0.9 to 1.1 wt.% of Mo, 0.015 to 0.1 wt.% of Nb, 0.05 to 0.08 wt.% of V, 0.01 to 0.03 wt.% of Ti, 0.015 to 0.03 wt.% of Al, 0.01 to 0.015 wt.% of N and 15 ppm or less of O. The alloy for a transmission gear has remarkably improved bending fatigue strength, contact fatigue strength and impact energy compared to an existing Cr alloy or a Cr-Mo alloy since the alloy is composed by removing factors deteriorating the fatigue strength.
Patent KR-20010054653-A (KR)
Inventor: HAM JIN HO
IPC: H04M1/724
Filed: 1999-12-07
Abstract: PURPOSE: A telephone keypad unit composed of double-switched buttons is provided to install two switches for each button so that each switch contact can individually be operated according to a push location of each button. CONSTITUTION: Twelve buttons(221) are formed on a compressed and molded silicon rubber plate(220). An outer wall(222) of each button(221) is so elastic that the wall gets pleated and compressed when a user pushes a button. The silicon rubber plate(220) prevents other materials from intruding into a lower substrate. Numerals and characters are printed on the key caps of the buttons(221). Two bosses(25a,25b) are formed on the lower part of each button. If the user pushes a button, these bosses(25a,25b) contacts a membrane tactile(231) and transfers pressure so that the membrane tactile(231) can be deformed.
Patent KR-20010054936-A (KR)
Inventor: BAEK YEONG SUK
IPC: A61K33/24
Filed: 1999-12-08
Abstract: PURPOSE: A process for preparing a high purity calcium-containing germanium solution by dissolving germanium oxide powder in pure water and adding a calcium solution to the obtained sol solution is provided. Therefore, the obtained titled compound can be used for various medicines, beverages, organic fertilizers for plant growth, detergents or the like. CONSTITUTION: Germanium having a particle size of about 0.2 to 0.3 micrometer and a purity of 99.999% is added to a mixture of 20% by weight of germanium oxide and 80% by weight of pure water in a high temperature vacuum mixer under nitrogen atmosphere and agitated at about 70deg.C at a speed of about 3,000 rpm for 30 min to give a highly concentrated germanium solution. Calcium powder having a particle size of about 0.2 to 0.3 micrometer and a purity of 99% or more is mixed with pure water in a ratio of 1:1 in a high speed mixer under nitrogen atmosphere and grinded at a speed of about 3,000 rpm or more for 48 hr to give a high purity calcium solution. The obtained germanium solution and calcium solution are mixed with water in a ratio of germanium/calcium/water of 20 to 50:50:10 at about 100deg.C or less to produce the subject solution.
Patent KR-20000052490-A (KR)
Inventor: KIM KYU SEOK
IPC: C08J7/044
Filed: 1999-12-16
Abstract: PURPOSE: A composition for an image receiving layer is provided which forms an image receiving layer with good toner adhesive power, good electricity prevention, low friction coefficient, blocking-resistance and good appearance. CONSTITUTION: A composition for the image receiving layer comprises the parts of: 2-20 wt% of thermoplastic copolymer which includes methylmetacrylate and butylacrylate residual radicals; 0.1-10 wt% of thermal hardening polymer which forms crosslinking with the thermoplastic copolymer; 0.01-0.5 wt% of reaction-typed silicone class slip agent which has at least 1 functional radicals selected from the group consisting of a conjugate double bond, a free hydrogen radical which is combined to a silicone, an amino radical and a hydroxyl radical; and 0.01-0.5 wt% of a fluor class anionic surfactant and water as a residual.
Patent KR-20010063161-A (KR)
Inventor: LEE CHANG UK
IPC: B65G49/07
Filed: 1999-12-22
Abstract: PURPOSE: A comb of transfer device is provided to enable separation and combination between a comb body and a pin and to replace the pin in case the pin is damaged. CONSTITUTION: A pin(20) is inserted to an insertion hole(11) of a body(10) to be aligned on end portion of the body. At a bottom of the pin(20), a groove(21) is formed for nut fixing. Between a bottom of the fixed pin(20) and a bottom of the pin insertion hole(11), a free space is provided for a nut(13) and the groove(21) to be combined at a precise location. A comb proceeds in parallel in a unit of pair for mounting a wafer loaded inside a cassette between each pin(20). In case the pin is bent or broken, a nut(13) is released and the pin(20) is separated from the body(10) for replacing to a normal product. Thereby, in occurrence of defect of pin(20), only partial replacement enables continuous usage without replacing entire comb.
Patent KR-20010060521-A (KR)
Inventor: KIM DONG GYU
IPC: G02F1/1341
Filed: 1999-12-27
Abstract: PURPOSE: A liquid crystal display device having a wide viewing angle and a substrate therefore are to obtain a wide viewing angle without any additional process by forming an opening pattern and a protrusion. CONSTITUTION: An insulating substrate(10) is provided. A gate line is formed on the substrate. The first protrusion pattern(21) is formed on the same layer as the gate line and formed with the same material as the first protrusion pattern. A data line is isolated from the gate line. A pixel electrode(91) is formed on the first protrusion pattern and is overlapped with the first protrusion pattern. A switching device transfers or breaks an image signal transmitted through the data line according to a scanning signal transmitted through the gate line. The second protrusion pattern is formed on the first protrusion pattern with a photosensitive material and has the same plane shape as the first protrusion pattern.
Patent KR-20010064545-A (KR)
Inventor: JANG GONG SAM
IPC: H01L21/3205
Filed: 1999-12-29
Abstract: PURPOSE: A semiconductor device is provided to stabilize a subsequent process by extending only silicide located on a gate to an upper portion of a field oxide layer, and to improve integration by reducing a region for a contact so that the size of the field oxide layer decreases. CONSTITUTION: A field oxide layer(2) defines a device formation region, located in a portion of an upper part of a substrate(1). A gate(3) passes through an upper part of the center of the device formation region. Silicide(5) is located on the gate and on the field oxide layer extended from the gate. A metal interconnection(4) connected to the silicide located on the field oxide layer is formed, while an insulation layer(6) is interposed between the metal interconnection and the silicide.
Patent KR-20010065431-A (KR)
Inventor: WOO GYEONG HOE
IPC: F27D99/00
Filed: 1999-12-29
Abstract: PURPOSE: An apparatus for repairing a partially-corroded part of a furnace wall is provided to accurately repair the partially-corroded part by dropping small amount of coating material at the accurate position of the partially-corroded part, thereby extending the life of the furnace wall of an electric furnace. CONSTITUTION: An apparatus for repairing a partially-corroded part(44) of a furnace wall includes a repairing material loading box(1) formed in a square box, installing a stand for fixing the height(3) on one side of the bottom surface to be secured at a furnace projection(45), a stand for fixing the height(4) installed on the other side of the bottom surface to be secured at the top side of a roof(47), a repairing discharge port formed at the lower part of one side, a chute guide installed on the one side, and a rod guide(17) installed on the other side opposite to the one side; a chute(2) adhered closely to the one side of the repairing material loading box for forming a groove into which the chute guide is inserted to ascend and descend by own weight, having a repairing material inlet port formed at the upper part of the one side for flowing into repairing materials(46) discharged from the repairing material discharge port, a repairing material dropping port formed at the lower part of the other side opposite to the one side; and a rod part formed with a first rod(25) inserted into the groove of the top side of the chute to be ascended and descended inside the chute, a second rod(18) inserted into the rod guide to be ascended and descended inside the rod guide, a connection member axially-connected to first and second rods, and having a groove formed at the connection member to be moved by a crane.
Patent KR-20000029953-A (KR)
Title: Tamper-evident reclosable plastic bag with slider-type zipper
Inventor: DOBRESKI DAVID V
IPC: B65D33/34
Filed: 1997-08-14
Abstract: PURPOSE: A bag is provided with a reclosable zipper extending along a mouth formed opposite the sealed bottom and including a male track with a male profile and a female track with a female profile. CONSTITUTION: A reclosable plastic bag comprises first and second opposing panels fixedly connected to each other along a pair of sides and a bottom bridging the pair of sides. The bag is provided with a reclosable zipper (22) extending along a mouth formed opposite the sealed bottom (20). The zipper includes a male track with a male profile and a female track with a female profile. A slider (32) is slidably mounted to the zipper for movement between a closed position and an open position. The male and female profiles are engaged to each other while the slider is in the closed position. The male and female profiles are disengaged from each other in response to movement of the slider to the open position. To prevent tampering with the contents of the plastic bag prior to being initially opened, the slider is initially parked in the closed position at one end of the zipper, and upper edges of the male and female profiles are detachably connected to each other, except at the one end of the zipper supporting the parked slider. The slider cannot be moved from the closed position until an one-time tamper-evident feature (36, 38) is broken or, alternatively, movement of the slider from the closed position will break the tamper-evident feature.
Patent KR-20000036198-A (KR)
Title: Pulse transformer for line interfaces operating according to the echo compensation principle
Inventor: PETZOLD JOERG
IPC: H01F27/25
Filed: 1997-09-17
Abstract: PURPOSE: An interface transformer for digital transmission system is provided to realize low bit error rate of the transformed pulses and long line length. CONSTITUTION: In the ISDN telecommunication system the connection between a digital local exchange and the network termination is brought about via a public two-wire trunk with so-called U-repeating coils at its ends. If the network termination leads to a terminating subscriber, a Uk0 interface is referred to in which the line length between the repeating coils can be up to 8 km. The bit error rate of the transformed pulses has to be <10<-7>, direct currents of up to 80 mA being superimposed on the pulses for power-feeding the terminating subscribers. For Uk0 repeating coils of this type, a toroidal tape core of low-retentivity amorphous malconstruction-free alloy strip is proposed. The resultant toroidal tape core is heat-treated in a magnetic field, this heat treatment being carried out in a protective gas atmosphere.
Patent KR-20000053340-A (KR)
Inventor: RYDIN ANDERS
IPC: A47L9/14
Filed: 1997-11-20
Abstract: PURPOSE: A dust separator for a vacuum cleaner in which the bag is sealingly connected to a rigid screening plate around an opening through the plate, wherein the plate screens-off an air-flow passage through the vacuum cleaner is provided. CONSTITUTION: A dust separator is for a vacuum cleaner, in which the bag is sealingly connected to a rigid member(7) that screens-off an air-flow passageway through the vacuum cleaner and has an opening(71) with which the bag(81) connects. The screening member(7) is separate from the bag(81). Mounted at the orifice of the bag(81) is a flange(83) which functions to prevent the bag from being drawn through the opening(71) in the screening member in the direction of air flow through the vacuum cleaner. The flange(83) can be collapsed(86,89) to enable it to be passed through the opening(71) in the screening member(7) when the bag is full.
Patent KR-20010068349-A (KR)
Title: Standard basis gf multiplier with the generalized basis cell and the fixed basic cell and squarer architecture
Inventor: CHOI SEONG SU
IPC: G06F7/52
Filed: 2000-01-05
Abstract: PURPOSE: A high-speed GF multiplier in a finite object based on a standard basis is provided to implement a regular module of the GF multiplier that is suitable for a system with high speed, and reduce complexity of the system. CONSTITUTION: The GF multiplier is comprised of m2 basic multiplier cells(Mi,j)(i,j = 0, 1, ..., m-1). The basic multiplier cells(Mi,j) are divided into i rows and j columns. The inputs of the basic multiplier cells(Mi,j) are connected to the outputs of the basic multiplier cells(Mi,j), respectively. The basic multiplier cells(Mi,j) multiply a multiplier(A) to a multiplicand(B), and generate the result(P) of this multiplication, where A = a0,a1, ..., a(m-1), B = b0,b1, ..., b(m-1) and P = P0,P1, ..., P(m-1). The values(Pi) are equal to a summation value of partial products.
Patent KR-20010073546-A (KR)
Title: Cathode plate for electrolytic refining
Inventor: CHOI CHANG YEONG
IPC: C25C7/00
Filed: 2000-01-18
Abstract: PURPOSE: A negative plate for electrowinning is provided to enable an electrodeposit layer to be easily peeled by ensuring the negative plate to be immersed into an electrolyte. CONSTITUTION: A negative plate for electrowinning includes a rectangular negative plate(20) made of aluminum, a ribbon(22) having certain width and thickness at both ends of the negative plate(20) and covered with resin, a current conductive head bar(24) fixed to the upper side of the negative plate(20) and a transporting hook(26) installed in the upper side of the head bar(24). A coat(22) is formed to surround the whole front and side surfaces of the negative plate(20) at a position of a certain length downward from the head bar(24). The coat(22) is integral with or separate from the ribbon(22). The coat(22) has the lower surface declined at a certain angle from the negative plate(20).
Patent KR-20010076784-A (KR)
Title: Laser induced heating method and device by illuminating 2-band laser lights
Inventor: BAEK MUN CHEOL
IPC: H01S3/10
Filed: 2000-01-28
Abstract: PURPOSE: A device and method of adjusting temperature for a local area by radiating 2-bandwidth wave laser is provided to adjust the temperature of the local area by concurrently using electromagnetic fields of both short wave bandwidth and of long wave bandwidth even in case of heating the laser ray, even if an output of electromagnetic field of short wave bandwidth become at low state. CONSTITUTION: A long wave radiation device radiates a long wave bandwidth of an electromagnetic field, while a short wave radiation device radiates a short wave bandwidth of the electromagnetic field. A focusing device intensively radiates the long wave bandwidth of the electromagnetic field on a predetermined area including information recording area of a recording medium, and intensively radiates the short wave bandwidth of the electromagnetic field on a local area of the predetermined area. The long wave radiation device and the short wave radiation device have modulating means for modulating the strength of the electromagnetic field according to each time, respectively.
Patent KR-20010049202-A (KR)
Inventor: HASHIMOTO ATSUKI
IPC: H02K33/16
Filed: 2000-02-01
Abstract: PURPOSE: To provide a quiet electromagnetic diaphragm type pump miniaturized, lightened and to be assembled without using a screw. CONSTITUTION: The housing 51 of a pump 50 is structured by integrally molding its four surrounding sides with the bottom and head covers 71a, 71b are combined with its right and left sides by using a hook. A chamber tank 90 in liquid communication with the head covers 71a, 71b is disposed at the front side of the housing, and it is compactly formed. In the housing 50, an E-type core wound with a coil and a back core which is smaller than that are disposed at a designated interval, and the oscillator 63 is disposed toward the back core in the interval. Thereby, the housing 51 can be miniaturized and a long life can be given to a diaphragm. The core is firmly fixed to the housing 51 by the expanding force of slotted ribs 55a, 55b, 56a, 56c. Since the through hole of the oscillator 63, which is formed on the inner walls 52a, 52b of the diaphragm, is made small, the quiet pump can be made.