baber/WOPTO huggingface dataset:
Patent KR-20010005045-A (KR)
Inventor: CHO YEONG DU
IPC: F28D1/04
Filed: 1999-06-30
Abstract: PURPOSE: A parallel flow heat exchanger is provided to improve heat exchange efficiency while reducing the number of tubes for use of a refrigerant flow channel. CONSTITUTION: A plurality of tubes(3) for a refrigerant flow channel(6) are installed on header pipes, and a plurality of radiating fins are arranged onto and beneath the tubes. A baffle is installed to the header pipes so as to section the tube. The tubes for the refrigerant flow channel have the same outer size, and the tube has plural refrigerant flow channels arranged within the tube and which form a hydraulic diameter portion. The refrigerant flow channel of the tube has a sectional surface gradually decreasing as it goes toward the outlet side of the tube, while maintaining the number of tubes constant. Thus, the heat transfer coefficient of the refrigerant is prevented from being reduced. The tube where the refrigerant flow channel is formed, is sectioned at regular intervals by the baffle. A partition(7) with a plurality of convex-concave portions is arranged within the tube so as to form plural refrigerant flow channels.
Patent KR-20010010393-A (KR)
Inventor: CHOI IN JA
IPC: A61K38/27
Filed: 1999-07-20
Abstract: PURPOSE: A biodegradable block copolymer of hydrophobic polymer and hydrophilic polymer and a composition of drug delivery system are provided. The copolymer has a low melting point and can be easily dissolved in organic solvent and a drug can be enclosed by the copolymer under low temperature. CONSTITUTION: The biodegradable block copolymer is characterized in that it consists of 20 to 80 wt.% of hydrophilic polymer polyalkyleneglycol having a molecular weight of 200 to 50,000 dalton and hydrophobic polymer poly(p-dioxanon) derivative having a molecular weight of 500 to 100,000 dalton, and is dissolved in a pharmaceutically acceptable solvent, in which the polyalkyleneglycol is polyethyleneglycol, monomethoxy polyethyleneglycol or the copolymer of ethyleneglycol and propyleneglycol, the poly(p-dioxanon) derivative is copolymer of poly(p-dioxanon) monopolymer, 1,4-dioxane-2-on and lactide, copolymer of 1,4-dioxane-2-on and glycolide, copolymer of 1,4-dioxane-2-on, glycolide and lactide, or copolymer of 1,4-dioxane-2-on and caprolactone, and the pharmaceutically accepted solvent is selected from methylenechloride, chloroform, ethanol, methanol, isopropanol, butanol, acetic acid, formic acid, ethyl acetate, methyl acetate, acetonitrile, acetone, 1,4-dioxane, N,N-dimethylformamide, N,N-dimethyl acetamide, dimethyl sulfoxide, N-methylpyrrolidone, water and mixture thereof. The copolymer is represented by formula(1) RO-A-B-OH, (2) RO-B-A-B-OR, (3) RO-A-B-A-OR, or (4) RO-(A-B)N-OR, wherein R is hydrogen, methyl-, or acethyl- group; n is an integer of 1 or 100; A is a hydrophilic block and B is a hydrophobic block.
Patent KR-20010011062-A (KR)
Inventor: HA SANG JIN
IPC: G07F7/12
Filed: 1999-07-24
Abstract: PURPOSE: A personal identification system using credit cards for automated devices such as issuing devices for various certificates is provided, which specifies a user from the credit card and identifies the user to give requested service. CONSTITUTION: The personal identification system comprises a data input mean, a credit card reading mean, a certification request mean, a data receiving mean receiving a personal identifying number for the user from the server, a service request mean, and a printing mean. The identification method is characterized by the following steps : (i) reading a credit card and transmitting the input data by the user and the read data of the credit card to a credit card server ; (ii) deciding acceptance or rejection of the user by receiving the data ; (iii) transmitting a personal identifying number to a terminal of the desired service when the user is accepted ; and then (iv) transmitting the identifying number and the contents of the desired service to a service providing server.
Patent KR-20010017087-A (KR)
Inventor: MUN BYEONG O
IPC: H01L21/768
Filed: 1999-08-07
Abstract: PURPOSE: A method for manufacturing a multilayered metal interconnection is provided to improve an electrical characteristic by preventing resistance from being increased by an open fail phenomenon and a misalignment. CONSTITUTION: A low dielectric layer(15) is stacked on a semiconductor substrate(10). The first nitride layer(20) is stacked on the low dielectric layer. A contact pattern is formed, and the first nitride layer and the low dielectric layer are etched to form a plug pattern. The first interlayer dielectric(25) is stacked and planarized. The second nitride layer(30) and the second interlayer dielectric(35) are stacked. The first contact hole(45) broader than the plug pattern is formed on the second interlayer dielectric by an etching process. The second nitride layer, the first nitride layer and the low dielectric layer are etched away to form a dual contact hole. A copper layer is filled in the dual contact hole and planarized to form a copper interconnection.
Patent KR-20000023145-A (KR)
Inventor: ADAMS TIMOSI G
IPC: G03F7/09
Filed: 1999-09-14
Abstract: PURPOSE: An antihalation coating composition is provided to effectively absorb an unnecessary reflection light of an irradiation line of a short wave length. CONSTITUTION: A method for forming a photoresist relief image comprises the steps of: applying a layer of an antihalation coating composition on a substrate, wherein the antihalation coating composition comprises a resin combination agent having a phenyl group; hardening the antihalation composition layer; applying a layer of a photoresist composition on the antihalation composition layer; developing, after exposing the photoresist composition layer at an active irradiation line, the exposed photoresist layer.
Patent KR-20010027778-A (KR)
Inventor: LEE DONG GEUN
IPC: F02D41/30
Filed: 1999-09-15
Abstract: PURPOSE: An air-fuel ratio control method is provided to reduce the amount of exhaust gas and to save fuel by shortening time for the control of an air-fuel ratio of a vehicle cylinder. CONSTITUTION: A method for controlling an air-fuel ratio comprises the steps of: setting up an inverse period as a reference time; increasing or decreasing fuel injection to change the fuel injection with a specific change rate when an oxygen signal is inversed from a predetermined point and sustained as a value with a specific deviation for a first period; maintaining fuel injection uniform for a second period when the first period is longer than the reference time and less than three times of the reference time; rapidly performing change of fuel injection amount in the direction opposite of the former fuel injection when the oxygen signal is inversed at the end point of the second period; and repeating I-control(increasing or decreasing fuel injection with a specific change rate) and P-control(rapid reduction of fuel injection). According to the rapid reduction of the inversion of the oxygen signal value, the inverse amount as the object of P-control is reduced. Therefore, total air-fuel ratio control time is reduced rapidly.
Patent KR-20010027971-A (KR)
Inventor: CHUNG HAN SHIK
IPC: F03B3/00
Filed: 1999-09-17
Abstract: PURPOSE: A power generating system is provided to generate power using the head of water drained from a building or an apartment. CONSTITUTION: A power generating system comprises a drainpipes(14,16) guiding drained water from each floor of a building; a drainpipe making water fall downward; a turbine rotated by making water fall in the lower portion of the drainpipe; a generator generating power by the rotation of the turbine; and a battery storing power from the generator. An intermediate water collecting reservoir(20) is installed between the drainpipes(14,16) to temporarily drain water. The intermediate water collecting reservoir consists of a floating(22) and an opening cover(24). The floating and the opening cover are connected by a connecting member(26). When the floating ascends with the increase of water, the opening cover is separated from the entrance of the drainpipe(16) to open the drainpipe(16). Thus, the turbine is rotated by water from the drainpipe(16).
Patent KR-20010028678-A (KR)
Inventor: LEE JONG SEONG
IPC: H04W28/16
Filed: 1999-09-22
Abstract: PURPOSE: A device for measuring call quality of an exchanger is provided so that products can have constant quality by measuring the call quality of an analog communication interface in a PCM(Pulse Code Modulation) digital state. CONSTITUTION: A measured device(60) consists of a receiving unit(63), a switching unit(65) and a measuring device connecting unit(67). The receiving unit(63) is connected to a measuring device transmitting unit(50), for receiving an analog or digital signal from the measuring device connecting unit(67). The switching unit(65) switches the receiving unit(63) and the measuring device connecting unit(67) to connect a call path. The measuring device connecting unit(67) is connected to a measuring device comparing and sensing unit(70). The measuring device transmitting unit(50) is connected to the receiving unit(63) of the measured device(60), for transmitting the analog or digital signal to the receiving unit(63). The measuring device comparing and sensing unit(70) compares the analog or digital signal from the measuring device connecting unit(67) of the measured device(60) with a reference value, and then transmits the analyzed information to a personal computer(80). The personal computer(80) discriminates the reception state of the measured device(60) according to the analysis information from the measuring device comparing and sensing unit(70), displays the result on a monitor, and stores the analysis information and discrimination result in a memory.
Patent KR-20010036515-A (KR)
Inventor: KIM BEOM SEOK
IPC: A01N63/02
Filed: 1999-10-08
Abstract: PURPOSE: A fungicide for the control of plant diseases including rhamnolipid B, glycolipid antibiotics as an effective component is provided, which has a controlling effect as natural material originated from bacteria and can be naturally decomposed by other microorganism. CONSTITUTION: This natural fungicide for the control of plant diseases contains rhamnolipid B, glycolipid antibiotics as an effective component. The antibiotics control plant diseases generated by Phytophthora capsici, Cladosporium cucumerinum, Colletotrichum orbiculare, Magnaporthe grisea, Cercospora kikuchi, Cylindrocarpon destructans or Rhizoctonia slani.
Patent KR-20010037546-A (KR)
Inventor: KIM YONG SIK
IPC: F25D11/00
Filed: 1999-10-18
Abstract: PURPOSE: A refrigerator filter assembly is provided to prevent water leakage from the water supply source when the filter is detached from the refrigerator for replacement. CONSTITUTION: A refrigerator filter assembly comprises a filter holder(51) having a water supply tube(52) to which a water supply pipe(P) connected to the water supply source is inserted, and which is fixed at the a refrigerator; a filter(50) attachable/detachable to/from the filter holder and which has an insertion section(50b) for receiving water from the water supply tube; and an adjust member(70) having a supply section(73) accommodated into the water supply tube of the filter holder and which has a plurality of passage holes(74), and a shut-off section(72) tightly contacting an end(52a) of the water supply tube and which is connected to the supply section by a central axis(76). When the filter is detached from the filter holder, the shut-off section of the adjust member tightly contacts the water supply tube by the pressure of the water being supplied to the water supply pipe(P), to thereby shuts off the water supply.
Patent KR-20000052352-A (KR)
Inventor: TRUNTZMIHYAEL
IPC: G02B7/02
Filed: 1999-10-28
Abstract: PURPOSE: An optical imaging apparatus having more than one optical devices is provided which enables the optical device to move on at least one axis arranged vertically or in a random angle to the optic axis, with a method of executing the moving operation very accurately through the reduction of the surface variation in the optical device by a structure optimized in a power flow and strength aspect in order to compensate an image error. CONSTITUTION: An optical imaging apparatus has at least one optical device(2) supported in the inside of an inner ring(3) combined with an external mount(1). An operation apparatus is used in order to move the optical device at least to one direction arranged vertically to an optic axis. The operation of moving the optical device without variation or with variation-control is performed through a circumferential slot(4) system between the inner ring and the external mount including a connection member(5) arranged between the inner ring and the external mount, a rotation link(6) between the inner ring and the external mount, and at least one adjustment link(8,9,10) as operation apparatus having adjustment member(11a,11b) between the inner ring and the external mount. The inner ring and the external mount are formed in a body.
Patent KR-20010047232-A (KR)
Inventor: YANG SEUNG YONG
IPC: F25D23/00
Filed: 1999-11-18
Abstract: PURPOSE: A refrigerator and method for controlling operation of refrigerator is provided to allow the refrigerator door to be easily opened and prevent the refrigerator body from moving by the force applied to open the door. CONSTITUTION: A refrigerator comprises a main body for forming at least one cold room, a door for opening/closing the cold room, a compressor and an evaporator arranged in the main body so as to cool the cold room, a communication hole(30) formed at the main body and which communicates the cold room and the outer surface of the main body, and a pressure equalization valve arranged at the communication hole and which allow the air to flow into the cold room from outside of the main body when the pressure difference between inside of the cold room and outside of the main body is higher than a predetermined level. The pressure equalization valve includes a cut-off plate(31) arranged to contact the inner wall of the cold room, a fixing plate(33) having a plurality of air passage holes(35), and a spring(37) arranged between the cut-off plate and the fixing plate and which elastically restricts open or closed position of the cut-off plate by contracting or extending by the pressure in the cold chamber.
Patent KR-20010047439-A (KR)
Inventor: EUN JONG HYEON
IPC: B08B1/04
Filed: 1999-11-19
Abstract: PURPOSE: A device for cleaning roll of a return duck of a bright annealing furnace is provided to periodically perform cleaning operation of rubber rolls during the operation of the device in a state that hydrogen gas in the inside of the return duct is not discharged or removed. CONSTITUTION: A device for cleaning roll of the return duck of the bright annealing furnace includes a movable part and a cleaning part. The movable part is mounted in the inside of a return duct of a bright annealing furnace and moves upper and lower rubber rolls(110) from the inside of the return duct to a side. The cleaning part cleans the surface of the rubber rolls in the inside of the sealed return duct to remove foreign matters.
Patent KR-20010047771-A (KR)
Inventor: LEE TA GYEONG
IPC: H02K7/06
Filed: 1999-11-23
Abstract: PURPOSE: A rotor assembly of a flat type oscillation motor is provided to simplify a structure to be assembled, improve efficiency in manufacturing a rotor, enhancing an oscillation performance and making the motor being thinner. CONSTITUTION: An upper substrate(80) is a circular printed circuit board which enables a circuit to be printed on a surface. An insert hole(81) is formed on a rotary central part of the circular upper substrate(80). A commutator has a plurality of segments at uniform intervals. A plurality of coils(90) are arranged on an upper surface of the upper substrate(80) and correspond to each other based on the insert hole(81). The coils(90) are firmly bonded by an adhesive agent and soldered with a circuit terminal on the upper substrate side. The coils(90) are slightly eccentrically formed toward a side on the upper substrate(80). An eccentric unit is formed by integrally coupling a bearing part and a weight part.
Patent KR-20010048685-A (KR)
Inventor: KIM DAE YOO
IPC: B29C44/00
Filed: 1999-11-29
Abstract: PURPOSE: A process is to provide a non-dismantled thermal insulating mold form panel applied for installing a construction structure by using rigid urethane foam which the volcanic mineral foam, in particular a silas foam and adenite fabrics are compounded. CONSTITUTION: A processes comprises a step of forming silas mineral foam by heating the silas of volcanic deposits at a temperature of 900°C-1100°C, a step of mixing the silas foam and adenite fabrics with a polyol mixture for 1-3 minutes by a forcible agitator, a step of forming a panel by slowly foaming under a constant pressure of 10-100kgf in a mold frame so that the foaming pressure is not be dissipated after the urethane compounds which a mixture of the polyol mixture, the silas foam and the adenite fabrics is reacted to alcohol and isocyanite prepolymer are mixed. Further, the panel with non separable insulation material is composed of 10-22% of silas foam, 28-32% of isocyanite prepolymer, 38-42% of polyol mixture and 12-16% of adenite fabrics.
Patent KR-20000052420-A (KR)
Inventor: GRABOVBILHELREUM
IPC: G07B15/06
Filed: 1999-12-06
Abstract: PURPOSE: A data radio transmission apparatus, as used in case that a transfer apparatus should be in a long-time suspended state for data transmission and reception, is provided to be used for such as passage automatic recognition. CONSTITUTION: A downlink antenna(1) receives a radio signal transmitted from a passage detection system. A detector(2) carries out a rectifying function to convert a signal received by a high frequency carrier of 5.8 GHz into a basic frequency band. A real signal processing circuit(3) is connected to the detector(2) to convert the rectified signal into a real data stream according to a given protocol. The detector(2) comprises a second output(5). From the second output(5), a wake signal part of a signal received from the downlink antenna(1) is transmitted to wake amplifiers(6A,6B). Each of the wake amplifiers(6A,6B) has an output related to an associated input of a determination unit(7). If the wake amplifiers(6A,6B) recognize a wake signal according to an assigned protocol(A,B) and emits an associated signal, the determination unit(7) recognize the protocol by which a real data received from the downlink antenna(1) was encoded. If the determination unit(8) recognizes the signal, the determination unit(8) activates a transfer unit(8). The transfer unit(8) supplies an electric current to the real signal processing circuit(3) and makes an OBU(On Board Unit) operated.
Patent KR-20000048164-A (KR)
Inventor: SUDO HIROAKI
IPC: H04B7/26
Filed: 1999-12-16
Abstract: PURPOSE: A base station apparatus and a transmission branch selection method are provided to carry out accurate transmission branch selection even in an intermittent communication condition with a certain time interval after an uplink burst is received until a downlink burst is transmitted. CONSTITUTION: Level detectors(305-312) detect reception levels of uplink bursts received by their respective subcarriers/branches, then interpolation sections(313-320) estimate reception levels of the next uplink burst from the reception levels of a plurality of uplink bursts detected, select the branch with the maximum estimated value for each subcarrier and sends each subcarrier of the next downlink burst to be transmitted using the selected branch.
Patent KR-20010064846-A (KR)
Inventor: BAEK SEUNG CHEOL
IPC: C22C38/02
Filed: 1999-12-20
Abstract: PURPOSE: A method for manufacturing high tensile strength cold rolled steel sheets (80-90kgf/mm2) having superior impact absorbability and formability is provided to form an adequate quantity of residual austenite so that elongation rate as well as yield strength is improved, thereby it is applicable to automobile bumper requiring superior impact absorbability. CONSTITUTION: The high tensile strength cold rolled steel sheet is manufactured by (i) hot rolling a steel slab comprising C 0.10wt.%, Si 0.2-0.8wt.%, Mn 2.0-2.5wt.%, S 0.015wt.% or less, P 0.020wt.% or less, Al 0.04wt.% or less, N 0.004wt.% or less, Nb 0.01-0.05wt.%, a balance of Fe, and other inevitable impurities wherein the steel slab satisfies the following an inequality: (58.2-145.5C£%|-8.2Si£%|-14.5Mn£%|)/222< Nb£%|<(68.2-145.5C£%|-8.2Si£%|-14.5Mn£%|)/222; (ii) cold rolling the hot rolled steel sheet; (iii) continuous annealing the cold rolled steel sheet wherein the temperature range satisfies the following an inequality: 563+651C£%|+42Si£%|+18Mn £%|< annealing temperature£°C|< 870°C; (iv) rapid cooling to an austempering start temperature of 420-480deg.C at a cooling rate of 20-100deg.C/sec; (v) and then austempering to 380 to 430deg.C for 300-500deg.C.
Patent KR-20010064034-A (KR)
Inventor: HA JEONG MIN
IPC: H01L29/78
Filed: 1999-12-24
Abstract: PURPOSE: A manufacturing method of MOS(Metal Oxide Semiconductor) transistor with raised source/drain is provided to minimize parasitic capacitance between a gate and a source/drain with forming a shallow junction. CONSTITUTION: An isolation layer(4) is built on a semiconductor substrate(2) to define an active region and an inactive region. After doping an insulation layer, a doped polysilicon layer is vaporized. Patterning the insulation layer and the doped polysilicon layer, a gate isolation layer(6) and a gate electrode(8) are made. The side of gate electrode(8) is oxidized, and an oxide layer(10) is produced. A spacer is attached on the side of gate electrode(8) after doping and etched back a nitride layer. Using a SEG(Selectively Epitaxial Growth) method, an epitaxial layer(14a,14b) is made on the gate electrode(8) and the substrate(2). The nitride spacer is etched using a H3PO4 solution. An insulation layer(16) is constructed by vaporizing a plasma CVD oxide layer or nitride layer. Etching the insulation layer(16), a void is formed between the gate electrode(8) and the epitaxial layer(14b). Impurity ions are injected into the semiconductor substrate(2) and activated to build a source/drain(18).
Patent KR-20010061711-A (KR)
Inventor: KIM CHEOL
IPC: H04L12/24
Filed: 1999-12-29
Abstract: PURPOSE: A method for managing an SNMP(Simple Network Management Protocol) of a communication system is provided to improve efficiency of a management object system control through supplement for a trap management operation. CONSTITUTION: A system sets up a trap flag and a trap peer, and decides whether the trap flag is turned on(ST11). If so, the system decides whether the trap peer is true(ST12). If so, the system generates a trap, and performs a normal operation(ST13). If the trap flag is turned off, or if the trap peer is false, the system performs a normal operation(ST14).