baber/WOPTO huggingface dataset:
Patent KR-20040033460-A (KR)
Title: Inorganic Field Based Admixture Manufacturing Method For Concrete Sewer Pipe And Concrete Sewer Pipe Therein
Inventor: KIL BAE SU
IPC: C04B18/06
Filed: 2002-10-14
Abstract: PURPOSE: Provided is a preparation method of inorganic admixture for preventing corrosion of concrete drain pipes due to growth of thiobacillus thiooxidans by possessing nickel and tungsten ions in fly ash. CONSTITUTION: The inorganic admixture is prepared by the following steps of: (S1000) dissolving 50-80wt.% of Ni-salt(NiSO4) and 20-50wt.% of W-salt(Na2WO4) in water and optionally adding small amounts of silver to offer sterilizing property; (S2100) adding 70-99wt.% of fly ash to the solution of 1-30wt.% of metal salts and soaking for 1-10hrs with (S2000) stirring; heating at 100deg.C for 3hrs; (S3000) drying at 90-100deg.C for 12hrs; (S4000) thermal treating at 350-400deg.C for 3hrs; (S5000) grinding and separating into the size less than 60mesh. The content of Ni and W, based on inorganic admixture is 0.01-40wt.%.
Patent KR-20040033963-A (KR)
Title: Method for fabricating semiconductor device with self-aligned storage node
Inventor: KIM UK JE
IPC: H01L21/60
Filed: 2002-10-16
Abstract: PURPOSE: A method for manufacturing a semiconductor device having a self-aligned storage node is provided to be capable of securing the alignment margin enough between the storage node and a storage node contact hole and reducing fabrication cost. CONSTITUTION: A semiconductor substrate having a contact pad is prepared. The first insulating layer having a storage node contact hole for exposing the contact pad is formed on the resultant structure. At this time, the first insulating layer is made of an upper and lower interlayer dielectric(350,360), and an etch stop layer(355) between the upper and lower interlayer dielectric. The first conductive layer(380) is formed on the entire surface of the resultant structure. The second insulating layer(390) having recess portions is formed in the storage node contact hole. An etching mask layer(417) is formed on the second insulating layer. Then, the second insulating layer is etched by using the etching mask layer. The second conductive layer(420) is formed on the entire surface of the resultant structure. A node isolation is carried out by selectively etching the first and second conductive layer.
Patent KR-20030032877-A (KR)
Title: Magnetic memory and method of its manufacture
Inventor: OKAZAWA TAKESHI
IPC: H01L43/08
Filed: 2002-10-17
Abstract: PURPOSE: To provide a magnetic memory wherein a contact film between a TMR multilayer film and an upper interconnection can be formed self-alignedly, and also to provide a method of manufacturing the same. CONSTITUTION: The magnetic memory comprises the TMR multilayer film (6) formed on a first conductive film (4), and a second conductive film (8) which is formed on the TMR multilayer film (6) and has the same planar shape as the TMR multilayer film. The second conductive film has a flat surface. A first insulation film (10) is so formed as to surround the TMR multilayer film (6) and the second conductive film (8), and has a flat surface having the same height as that of the surface of the second conductive film (8). A second conductive film (12) is formed on the first insulation film (10) and is electrically connected to the second conductive film.
Patent KR-20040036064-A (KR)
Title: Control method of pi controller
Inventor: SUK JUL GI
IPC: G05B13/02
Filed: 2002-10-23
Abstract: PURPOSE: A method for controlling a proportional integral controller is provided to detect easily a switching point between a proportional control process and a proportional integral process by analyzing a frequency characteristic of a driving unit. CONSTITUTION: An output of a proportional integral controller is transformed by a Fourier transform process(S41,S42). A spectral energy ratio of a transformed output of a predetermined reference frequency for an entire frequency region is calculated(S43). A proportional control process is performed if the calculated spectral energy ratio exceeds a predetermined reference ratio or a proportional integral control process is performed if the calculated spectral energy ratio does not exceed the predetermined reference ratio(S44,S45).
Patent KR-20030083550-A (KR)
IPC: F16D48/06
Filed: 2002-10-23
Abstract: 전자 파우더 클러치의 전달토크 여자전류의 관계를 변경한 경우의 차량에 의한 재 매칭의 필요가 없고 양호한 주행필링을 얻는다. 
     동기 맞물림식 변속기는 변속개시시 및 변속 종료시에 동력의 전달, 차단 및 크리프제어를 하는 전자 파우더 클러치를 포함하고, 제어수단은 시프트 위치가 주행레인지 또는 리버스 레인지일 때 전자 파우더 클러치에 여자전류를 공급함으로서 전자 파우더 클러치를 체결 또는 반체결 상태로해서 차량을 저속 주행시키는 클러치 제어부를 포함하고 클러치 제어부는 브레이크 스위치 및 액셀포지션에 의한 검출이 없을때 목표차속과 실차속의 편차에 따른 폐 루프제어에 의해 얻어지는 편차신호에 따라 산출된 클러치 전달토크를 여자전류와의 소정의 관계 특성에 따라 여자전류로 변환한다.
Patent KR-20040036190-A (KR)
Title: Driving device for washing machine
Inventor: CHO SEONG JIN
IPC: D06F37/30
Filed: 2002-10-23
Abstract: PURPOSE: A driving device for a fully automatic washing machine is provided to increase output of a motor by transmitting rotational force efficiently with assembling the motor with the lower part of the clutch, and to cool the stator by draining water from the base with forming the sidewall hole in the sidewall of the rotor frame. CONSTITUTION: A fully automatic washing machine comprises an outer tub installed in an outer case; a washing tub having plural dehydrating holes; a pulsator formed in the lower center of the washing tub; a dehydrating shaft having an upper dehydrating shaft, a lower dehydrating shaft and a drum connecting the upper dehydrating shaft to the lower dehydrating shaft; a washing shaft having an upper washing shaft, a planetary gear decreasing rpm and transmitting rotational force to the upper washing shaft and a lower washing shaft; a clutch housing surrounding the dehydrating shaft; a stator assembly having a core and a coil part; a rotor surrounding the outer periphery of the stator assembly with rotating; a rotor frame(530) fixing the rotor; and a sidewall hole(c) formed at a sidewall(532) of the rotor frame.
Patent KR-20040036460-A (KR)
Title: LDPC decoding apparatus and method
Inventor: HAN SEONG HYU
IPC: H03M13/11
Filed: 2002-10-26
Abstract: PURPOSE: A LDPC(Low Density Parity Code) decoding apparatus and its method are provided to improve decoding performance by reducing complexity of a calculation process when decoding a code word transmitted through a channel by being LDPC coded using a parity check matrix. CONSTITUTION: According to the LDPC decoding apparatus, the first Q-matrix generation part(120) receives a code word and a parity check matrix, and generates the first Q-matrix. An R-matrix generation part(130) receives the first Q-matrix from the first Q-matrix generation part, and generates a R-matrix by replacing each non-zero component of each row with a minimum value among other non-zero components except its own component value. The second Q-matrix generation part(140) receives the code word and the R-matrix from the R-matrix generation part, and generates the second Q-matrix, and outputs the second Q-matrix to the R-matrix generation part. And an output calculation part(150) receives the R-matrix from the R-matrix generation part, and outputs a decoded code word constituted with c code-bits by determining one code bit by adding component values of each row of the R-matrix.
Patent KR-20040037804-A (KR)
Title: Alphabet input apparatus and alphabet input method
Inventor: CHOI JANG SEONG
IPC: G06F3/01
Filed: 2002-10-30
Abstract: PURPOSE: A device for inputting an alphabet and a method therefor are provided to analyze types of alphabets, and to extract basic 10 figures applied to most alphabets, thereby always defining the alphabets with 2 keys only on a keypad assigning 10 input keys. CONSTITUTION: A key input unit(600) has input keys where the predetermined number of basic figures extracted by analyzing forms of capital letters are displayed. A database unit(640) stores alphabet information coded by a permutation of two input key code values sequentially generated by the key input unit(600). If the code values are inputted from the key input unit(600), a character determining unit(620) sequentially extracts input key code values by two, and determines an alphabet, which corresponds to a permutation of the extracted code values, from the alphabet information stored in the database unit(640). A character display(660) displays the determined alphabet.
Patent KR-20030040055-A (KR)
Title: Controller of thermo-mat for driving by dc power
Inventor: LEE YOUNG MIN
IPC: H05B3/20
Filed: 2002-11-04
Abstract: PURPOSE: A hot mat control apparatus is provided to reduce energy consumption, while allowing for accurate setting and control of radiation temperature. CONSTITUTION: A hot mat control apparatus comprises a power unit(10) for rectifying AC power to DC power and outputting a static voltage; first and second temperature set units(20,120) for receiving static voltage from the power unit and setting a radiation temperature of a double hot mat(300); first and second temperature control units(30,130) for receiving set temperature signals set by the first and second temperature set units, and controlling output of AC power; second and third full-wave rectifier units(40,140) for rectifying AC power to DC power when the first and second temperature control units are switched on, and applying DC power to first and second hot wires(202,302) buried in the double hot mat; first and second electric potential output control units(60,160) for receiving the static voltage output from the power unit through first and second switching units(SW1), setting an electric potential output time, and controlling first and second electric potential generators(206,306) to generate electric potentials; and first and second step-up transformers(T2,T3) for receiving AC power and stepping up the AC power such that the first and second electric potential generators buried in the double hot mat output a high voltage.
Patent KR-20040040236-A (KR)
Title: Line pressure controlling regulator valve
Inventor: KIM HYEON SEOK
IPC: F16H61/00
Filed: 2002-11-06
Abstract: PURPOSE: A regulator valve for line pressure control is provided to stabilize operation of the valve and stabilize line pressure by minimizing a change in the volume of a solenoid control pressure chamber despite movement of a valve spool. CONSTITUTION: A regulator valve for line pressure control comprises a solenoid control pressure chamber(33) to which solenoid control pressure controlled by a duty control solenoid(31) is supplied; a valve spool(37) controlling hydraulic pressure supplied from an oil pump by line pressure; and an accumulator(39) disposed to the solenoid control pressure chamber of the valve spool, to reduce a change in the volume of the solenoid control pressure chamber followed by the movement of the valve spool. Elastic members(43,51) are installed in the solenoid control pressure chamber. The resultant force of the solenoid control pressure supplied to the solenoid control pressure chamber and the elastic members acts on one side of the valve spool, and line feed pressure acts on the other side of the valve spool.
Patent KR-20040040974-A (KR)
Title: Flexural Wave and Vibration Measuring Apparatus and Method Using a Magnetostriction Sensor
Inventor: CHO SEUNG HYEON
IPC: G01H11/04
Filed: 2002-11-08
Abstract: PURPOSE: An apparatus and a method for measuring a flexural wave and a flexural vibration using a magnetostriction sensor are provided to measure accurately the flexural wave and the flexural vibration by optimizing each phase of a bias magnet and a yoke. CONSTITUTION: An apparatus for measuring a flexural wave and a flexural vibration using a magnetostriction sensor includes a bias magnet(11) and a magnetic field variation measurement unit. The bias magnet(11) is installed around a magnetic body or an object having a magnetic layer in order to form the magnetic field as a profile of stress distribution when the flexural wave and the flexural vibration is applied to the magnetic body or the object. The magnetic field variation measurement unit measures a variation of the magnetic field due to the flexural wave and the flexural vibration. A bias yoke(15) is installed around the magnetic body or the object in order to form a magnetic circuit.
Patent KR-20030055107-A (KR)
IPC: C09K11/08
Filed: 2002-11-18
Abstract: 형광체에 대한 부착력이 강하고, 게다가 전자선조사에 의해 체색변화가 없어내전자선성이나 내열성이 양호한, 코발트블루 청색안료부착 형광체를 제공하는 것. 
     안료입자로서, 산화코발트(CoO)와 산화알루미늄(Al 2 O 3 )의 복합산화물로 이루어지고, 평균 입자직경이 0.05~0.20㎛이고, 또한, 그 Cu-Kα1 특성 X선에 의한 분말회절 X선스펙트럼에서, 이 스펙트럼의 31.1°의 회절각(2θ)에서의 회절피크의 반값폭이 0.30° 이하인 코발트블루 청색 안료입자를 사용하여, 이 안료입자를 형광체표면에 부착시킨다.
Patent KR-20040043558-A (KR)
Title: Movable Speed Calibration Method and Equipment for Aircraft
Inventor: AHN SEOK MIN
IPC: G01P3/00
Filed: 2002-11-19
Abstract: PURPOSE: A method for correcting the speed of a mobile aircraft is provided to perform the speed correction test without depending on the aviation test field. CONSTITUTION: A method for correcting the speed of a mobile aircraft includes the steps of: installing a pair of cameras(1) at two positions with respect to a level(2) horizontally; positioning the side position display rods at two places by using a vertical adjustment detector(3) of the cameras(1) and positioning it perpendicular to the longitudinal direction of the runway; and correcting the speed of the aircraft by measuring the moving time of the object between two places with synchronizing the times of the cameras(1).
Patent KR-20040045225-A (KR)
Title: Panorama Angle Lens Convertor Structure
Inventor: CHOI WON SEOK
IPC: G02B13/06
Filed: 2002-11-23
Abstract: PURPOSE: A panorama lens converter structure is provided to simplify a structure and a fabrication process and minimize the manufacturing cost by reducing the number of elements lenses. CONSTITUTION: A panorama lens converter structure includes a first lens structure and a second lens structure. The first lens structure has an ultra wide angle refraction effect by shortening the focus distance to widen an angle of view by a front parabolic side of a horizontal section of the first lens and a hemisphere rim formed on a center part of a rear plane. The second lens structure is used for correcting a distortion ratio of the first lens. A second lens of the second lens structure has a vertical plane section. A concave groove is formed on a center part of the second lens. A rear side of the second lens has a parabolic shape.
Patent KR-20040046634-A (KR)
Inventor: CHOI DEUK SAM
IPC: A47B9/14
Filed: 2002-11-28
Abstract: PURPOSE: A height adjustment structure for a table or chair is provided to improve students' body shape and enhance learning efficiency by adjusting the overall height of a table or chair. CONSTITUTION: A supporting leg(1) of a table top board or chair seat board is coupled to a backing leg(2) to be able to adjust the height thereof. A plurality of clamp holes(11) are vertically formed on the outer surface of the supporting leg(1). A cut groove(22) is formed at one side of the upper end of the backing leg(2) and an engaging hole(21) is formed at the opposite side thereof so that a clamp screw passes through the same and is fitted and coupled to one of the clamp holes(11) of the supporting leg(1). A sandwich clamp(3) is installed on the outer surface of the backing leg(2) for changing the inner diameter by the eccentric rotation of a grip(31) while having a stopping ridge(32) formed on the upper inner peripheral surface.
Patent KR-20040047420-A (KR)
Title: Ionomer/Clay NanoComposite Proton Exchange Membrane, preparation method thereof and fuel cell containing the same
Inventor: HWANG JI SEOK
IPC: H01M8/02
Filed: 2002-11-30
Abstract: PURPOSE: Provided is a proton-conductive polymer membrane, which has excellent electrochemical properties, thermal stability and mechanical properties, and is capable of reducing methanol cross-over. CONSTITUTION: The proton-conductive polymer membrane comprises 100 parts by weight of a fluoropolymer having a pendant sulfonate group, and 1-10 parts by weight of demineralized clay that is interlayer-separated into a nano-sized planar structure and has an aspect ratio of 1/1000 to 1/30. The proton-conductive polymer membrane is manufactured by the method comprising the steps of: dissolving a proton-conductive polymer having a pendant sulfonate group into an organic solvent; dispersing clay treated with a demineralizing agent into a separate organic solvent; mixing both solutions and stirring them to obtain a mixed solution; and forming a membrane by using the mixed solution.
Patent KR-20040053617-A (KR)
Title: Truck mud guard mounting structure
Inventor: KIM YEONG SIN
IPC: B62D25/16
Filed: 2002-12-17
Abstract: PURPOSE: Mounting structure of a mudguard for a truck is provided to prevent separation of the mudguard by making the mudguard firmly combined to a cab bridge member. CONSTITUTION: In mounting structure of a mudguard(3) for a truck, a cab bridge member(2) is fixed to a chassis frame(1) arranged in the longitudinal direction of a vehicle body, and the mudguard is mounted to a side of the cab bridge member by a mudguard stay(4). The mudguard is mounted to the other side of the cab bridge member by a reinforcing stay(10). A flange(3b), to which one end of the reinforcing stay is combined, is integrally formed to the mudguard, to make the reinforcing stay installed between the other side of the cab bridge member and the mudguard. A combining part(10a) to be combined to the other side of the cab bridge member is integrally formed to the other end of the reinforcing stay.
Patent KR-20040055468-A (KR)
Inventor: CHO GYU SEOK
IPC: H01L21/76
Filed: 2002-12-21
Abstract: PURPOSE: A method for forming an isolation layer of a semiconductor device is provided to prevent generation of a moat and guarantee reliability of the isolation layer by recessing a pad nitride layer by an STI(shallow trench isolation) method. CONSTITUTION: A pad oxide layer(32) and a pad nitride layer are sequentially formed on a silicon substrate(31) including an active area and a field area. The pad nitride layer and the pad oxide layer are patterned to expose the field area of the substrate. The exposed field area of the substrate is etched to form a trench. The pad nitride layer adjacent to the trench is etched by a predetermined width. An oxide layer is deposited on the resultant structure to fill the trench. A CMP(chemical mechanical polishing) process is performed on the oxide layer until the pad nitride layer is exposed. The remaining pad nitride layer is eliminated.
Patent KR-20040055984-A (KR)
Title: Cooling apparatus for hot billet
Inventor: CHOI GYEONG NAM
IPC: B21B45/02
Filed: 2002-12-23
Abstract: PURPOSE: An apparatus for cooling billets is provided to enable flaws on the surface of the billets to be probed and enable the billets to be early injected into wire rod heating furnace by performing additional cooling process once more before transferring the billets to the postprocess after cooling the billets in the cooling section. CONSTITUTION: The apparatus comprises a load frame(10) installed in such a way that the load frame is moved up and down with the high temperature billets(1) being loaded on the load frame; and a cooling vessel(20) comprising a water supply pipe(22) installed at a central part of one side of the cooling vessel so that the load frame is dipped into the cooling vessel and cooled by receiving the frame load into the cooling vessel, and a drain pipe(25) installed on a lower surface of the other side of the cooling vessel, wherein the load frame comprises a plurality of crosswise beams(12), a plurality of fixed beams(13) penetratingly fixed to the crosswise beams, and fixed ends(11) formed at four corners, wherein the load frame is vertically driven by a driving screw jack(30) fixed to an outer surface part of the cooling vessel with being fixed to a lower surface of the respective fixed ends and guided by a guide rod(32) fixed to a lower surface of the fixed ends and a guide(33) fixed to an outer surface part of the cooling vessel at the same time, wherein the cooling vessel comprises an overflow pipe(21) installed on an upper part of the cooling vessel to drain overflow of cooling water generated when the billets are dipped into the cooling vessel so that the billets are cooled, and wherein a lower bottom surface(24) of the cooling vessel is inclined, and a plurality of injection nozzles(23) are installed at the cooling vessel to remove scale deposited on the bottom surface in a lower part of the cooling vessel.
Patent KR-20040059420-A (KR)
Title: Processing methode for air purification and equipment therefor
Inventor: JUN JONG HAN
IPC: B01D53/32
Filed: 2002-12-28
Abstract: PURPOSE: Provided are a method for cleaning air and a device therefor which remove volatile organic compounds, harmful bacteria and bad smell contained in the air by using a photochemical reaction of a TiO2 photocatalyst and ultraviolet rays. CONSTITUTION: The device (1) comprises a main case (2) made of a transparent material, a high output, short wavelength ultraviolet rays lamp (8) installed vertically and horizontally inside of the main case and generating a sterilization ray having a 253.7 nm and an anion/ozone generating wavelength of 184.9 nm, a photocatalyst carrier (12) which is coated by TiO2 obtaining activated energy by being irradiated by ultraviolet rays from light source and has a specific density of 0.01-0.10 g/cm¬3 and a size of 1-10 mm, a fan (5) generating an air current to fluidize the photocatalyst carrier, photocatalyst coated stainless steel nets (6,6') preventing the photocatalyst carrier from being flown out and installed on the upper and the lower part air draining part and inner part circulating means and outer part circulating means of the carrier maximizing the photochemical reaction efficiency by minimizing the remaining discharge concentration of the anion/ozone component generated from the ultraviolet rays lamp and decomposing contaminants contained in the air by the photochemical reaction with circulating the photocatalyst carrier.
Patent KR-20040059435-A (KR)
Title: High sensitivity CMOS image sensor
Inventor: LEE WON HO
IPC: H01L27/146
Filed: 2002-12-30
Abstract: PURPOSE: A CMOS(Complementary Metal Oxide Semiconductor) image sensor is provided to improve charge transfer efficiency and optical sensitivity by changing the layout of a photodiode or a gate electrode. CONSTITUTION: A CMOS image sensor includes a gate electrode(320) of a transfer transistor having rectangular shape and a photodiode(310). The photodiode is contacted with the total length of lower side and the total length(L) of left and light side of the gate electrode. The photodiode is provided with a doping region in an epitaxial layer. The doping region is spaced apart from a spacer formed at both sidewalls of the gate electrode.
Patent KR-20040061723-A (KR)
Inventor: JANG CHEOL HO
IPC: H04B1/38
Filed: 2002-12-31
Abstract: PURPOSE: A camera device of a mobile communication terminal is provided to take photographs of an object at various angles by connecting an optical fiber cable mounting receiving lenses with a camera. CONSTITUTION: A camera is installed in a predetermined position of a terminal main body. An image input portion(4) is installed at a head part of an antenna of the terminal for inputting an external image. An image transmitting portion(5) is formed of a flexible material, and has one side connected with the image input portion(4) and the other side connected with the camera through the inside of the antenna so that the image transmitting portion(5) transmits the image inputted through the image input portion(4) to the camera. A connecting portion drives to make the image transmitting portion(5) go in and out and connects the image transmitting portion(5) with the camera.