baber/WOPTO huggingface dataset:
Patent KR-20030062113-A (KR)
Title: Sheet supply apparatus for electro-photographic image-forming apparatus
Inventor: AHN BYEONG SEON
IPC: G03G15/00
Filed: 2002-01-16
Abstract: PURPOSE: A paper feeder of an electrophotographic image forming system is provided to simplify the construction of the paper feeder and reduce the volume of the paper feeder. CONSTITUTION: A paper feeder of an electrophotographic image forming system includes a pick-up roller(152), a transfer roller(157), a transfer idle roller(153), and a paper overlapping prevention device(170). The pick-up roller picks up paper loaded in a cassette. The transfer roller and transfer idle roller are installed, opposite to each other, having the paper picked up by the pick-up roller between the two rollers, to transfer the paper to the inside of a main body of the image forming system. The paper overlapping prevention device is set, opposite to the transfer idle roller, to prevent papers from overlapping.
Patent KR-20030062642-A (KR)
Title: A method for forming gate of semiconductor device
Inventor: JANG MIN U
IPC: H01L29/78
Filed: 2002-01-18
Abstract: PURPOSE: A method for fabricating a gate of a semiconductor device is provided to eliminate a floating body effect and a kink effect by selectively etching a silicon layer through a two-step process, and to optimize parasitic serial resistance by increasing a thickness difference of the silicon layers in a recess gate region and a source/drain region. CONSTITUTION: A buried insulation layer(101) and a conductive layer are sequentially formed on a semiconductor substrate(100). The first insulation layer is formed and selectively patterned on the conductive layer. A predetermined depth of the conductive layer is selectively etched by using the first insulation layer as a mask. After the second insulation layer is formed on the exposed conductive layer, the third insulation sidewall is formed on the sidewall of the first insulation layer and the exposed conductive layer. The first threshold voltage control ion implantation process is performed on the resultant structure. A predetermined depth of the conductive layer is etched by using the third insulation layer sidewall as a mask. The fourth insulation layer sidewall is formed on the third insulation layer sidewall. The second threshold voltage control ion implantation process is performed on the resultant structure. A gate electrode(108) including a gate insulation layer is formed on the fourth insulation layer sidewall. After the first insulation layer is removed, a lightly-doped-drain(LDD) region(109) is formed through a low density impurity ion implantation process. A source/drain electrode(110) is formed on the resultant structure through a high density impurity ion implantation process.
Patent KR-20020024122-A (KR)
Title: Capacitor microphone
Inventor: PARK GEUN SU
IPC: H04R19/04
Filed: 2002-01-26
Abstract: PURPOSE: A capacitor microphone is provided to considerably decrease a noise by howling and echo phenomenon and the wind by forming an important sound wave inflow path at a pressure portion of a metal case body and a PCB. CONSTITUTION: A PCB(32) is pressed for covering an opened surface of a metal case body(30), and a sound wave inflow path is formed in the pressure portion of the PCB(32) and a plurality of sound wave inflow holes(36) are formed in the pressure portion of the PCB(32). An FET(38) is mounted on the PCB(36) for generating an electric signal corresponding to a sound wave. A ring-type connector(42) is allocated in a forward direction of a double polar holder(40) allocated in an internal wall surface of the metal case body(30), and a sound wave passing hole(44a) extended from a sound wave inflow path formed at a pressure portion of the metal case body(30) and the PCB(32) is formed in the ring-type connector(42). A diaphragm(48) is allocated at a uniform interval with a backplate(44) allocated at an upper side of the ring-type connector(42) and provides a capacitance varied between the backplate(44) to the FET(38) according to a sound wave inputted through the sound wave inflow path and the sound wave inflow holes(36). A double polar chamber(50) is formed in the center of the diaphragm(48).
Patent KR-20030064912-A (KR)
Title: hydroxy apatite block for high tibial osteotomy
Inventor: KIM JEE HYOUNG
IPC: A61F2/44
Filed: 2002-01-29
Abstract: PURPOSE: Provided is a block of hydroxy apatite for tibial proximal osteotomy which is absorbed slowly while supporting the body weight by using the workable material to be absorbed slowly on bio-system and have the sufficient strength like the bone. CONSTITUTION: The block of hydroxy apatite for tibial proximal osteotomy is basically wedge shaped and has the anti-skid grooves so as to bond to the cortical bone sufficiently while not being pushed out. The wedge shape is constructed at the various angles and is selected appropriately as occasion demands. The block is used singly or with the conventional metal block. When the block is used with the metal block, a much smaller metal block than the conventional metal block is used, and so it is easy to eliminate the metal block or there's no need to eliminate the block.
Patent KR-20030067288-A (KR)
Title: Changeable brick panels
Inventor: CHOI KYU WON
IPC: E04C1/00
Filed: 2002-02-07
Abstract: PURPOSE: The brick panel replacing housing walls and interior walls are provided to change a wall type according to design by a fabricated wall system, therefore to simplify construction and removal. CONSTITUTION: The brick panel replacing housing walls and interior walls are composed of: a brick panel(1) containing numbers of bricks to form a wall; a brick frame(3) comprising a big size brick access groove(4), a small size brick access groove(5), a window frame access groove(8) and a window seating space at the center of the panel; a fixing groove(2) fixing the brick panel to a steel post; a projected groove placed on the top of the panel to join with the following brick panel for an expansion.
Patent KR-20030067798-A (KR)
Inventor: WON U YEON
IPC: H05K3/00
Filed: 2002-02-08
Abstract: PURPOSE: A laser drilling machine for fabricating a both-sided flexible PCB(Printed Circuit Board) is provided to enhance the productivity by performing a PTH(Plated Through Hole) process on a cooper material of a state of roll instead of a state of sheet. CONSTITUTION: A laser drilling machine for fabricating a both-sided flexible PCB includes a reel loader unit(10), a reel unloader unit(20), a material feeling unit(30), a material gripper unit(40), a galvano-scanner, a Y-axis unit, a switch panel(70), a PC and monitor(80), and a control box. The reel loader unit(10) supplies copper foil materials to a predetermined position. The reel unloader unit(20) unloads the copper foil materials including various PTHs from the predetermined position. The material feeling unit(30) transfers the copper foil materials according to the received data. The material gripper unit(40) prevents the vibration of the copper foil materials. The galvano-scanner induces a laser beam to a designated position. The Y-axis unit transfers the galvano-scanner. The switch panel(70) is used for switching operations of the reel loader unit(10), the reel unloader unit(20), the material feeling unit(30), the material gripper unit(40), the galvano-scanner, and the Y-axis unit. The PC and monitor(80) are used for displaying inputting/outputting/controlling states of numerical values. The control box is used mounting various electric units.
Patent KR-20030069678-A (KR)
Title: scan apparatus for micro film
Inventor: CHO GI SEOK
IPC: G03B27/32
Filed: 2002-02-22
Abstract: PURPOSE: A microfilm scanning apparatus is provided to prevent a microfilm from being damaged when performing a microfilm scanning work by preventing the microfilm from being excessively rotated. CONSTITUTION: A microfilm scanning apparatus(100) includes a body(60). A motor(11) is provided at a left portion of the body(60). A microfilm roll(18) is coupled to a rotating shaft(16) of the motor(11), thereby forming a first driving section(10). A motor(21) is installed at a right portion of the body(60). A microfilm roll(28) is coupled to a rotating shaft(26) of the motor(21), thereby forming a second driving section(20). A microfilm(54) extends between the microfilm rolls(18,28) of the first and second driving sections(10,20). A horizontal roller(33) is provided at a side of the first driving section(10) so as to allow the microfilm(54) to pass through. A tension roller(34) is mounted on the horizontal roller(33). The horizontal roller(33) is coupled to the motor(31) through a belt(32).
Patent KR-20030070718-A (KR)
Title: Tools for Making Internet Lecture and Method for Internet Lecture
Inventor: LEE TAE HO
Filed: 2002-02-26
Abstract: PURPOSE: A network lecture authoring tool and a lecturing method are provided to give a rest time to a user while a lecture is being offered over a network in order to enable an interactive education. CONSTITUTION: The authoring tool comprises an image record module(100), a voice record module(102), a synchronization control module(104), and a rest time control module(108). The image record module(100) generates image packets which encode image data of a lecturer during a lecture, and generates an image file which integrates the image packets. The voice record module(102) generates voice packets which encode voice data of a lecturer during a lecture, and generates a voice file which integrates the voice packets. The synchronization control module(104) offers a timer sequence while the modules(100, 102) are being operated. The rest time control module(108) generates a rest request code, requested by a lecturer, to stop regenerating the lecture, and inserts the rest request code into packets.
Patent KR-20020028990-A (KR)
Inventor: LEE JEONG MIN
IPC: B65D47/08
Filed: 2002-03-08
Abstract: PURPOSE: A discharge stand for a liquid container is provided to overcome the deterioration of sealing force, to help a user to easily open/close the cap, and to improve the re-sealing ability of the cap. CONSTITUTION: The discharge stand(1) for a liquid container is formed with a body(100) structured to be vertically or horizontally attached to a film surface of the container, and a cap(200) divided on the upper end of the body through a skirt(S). The body has an adhesion surface(101) on the lower side thereof, and a discharge portion(102) over the adhesive surface. The skirt having a pulling handle(H) divided by a cutting line(CL) is formed between the upper end of the discharge portion and the lower side of the cap.
Patent KR-20020031132-A (KR)
Inventor: CHOI DUK KYU
IPC: G08G1/07
Filed: 2002-03-15
Abstract: PURPOSE: A traffic signal and vehicle passage system at a crossroad is provided, which achieves a passage rate of from minimum 45% up to maximum 75% as to vehicles in all directions at a four-way crossroad without constructing an underpass or an overpass. CONSTITUTION: At a four-way crossroad where roads(A,B,C,D) in four directions are crossed, a straight vehicle on the road(A) repeats its travelling and stop by a signal(S1), and a left-turn vehicle repeats its travelling and stop by a signal(S2), and a walker crosses a crosswalk according to the signal(S1). When the signal(S2) is turned off, a signal(S3) is turned on and a left-turn vehicle turns left at the road(D). When the signals(S1,S3) are turned on, signals(S4,S5,S6) are turned on, and thus a straight vehicle at the road(D) travels straight, and a straight vehicle and a left-turn vehicle at the road(B) travel straight, and the walker crosses crosswalks(P11,P12) according to the signals(S4,S5,S6). When the signal(S3) is turned on, signals(S7,S8) are turned on, and thus a left-turn vehicle and a straight vehicle at the road(C) turn right, and these vehicles travel according to signals(S100,S200).
Patent KR-20030078399-A (KR)
Inventor: YOON SEONG NO
IPC: D06F37/40
Filed: 2002-03-29
Abstract: PURPOSE: A manufacturing method of a washing shaft for a washing machine is provided to increase the productivity, and to cut down manufacturing cost by simplifying the manufacturing process and reducing material. CONSTITUTION: A washing machine includes a cylindrical outer tub storing water, a dehydrating and washing tub rotating in the outer tub, a pulsator rotated and installed in the floor center of the washing tub, a driving motor driving the pulsator or the dehydrating tub, a washing shaft(16) transmitting power from the driving motor to the pulsator, and a dehydrating shaft transmitting power from the driving motor to the dehydrating tub. A grinding rod is prepared, and serration parts(162) are formed at both ends of the grinding rod. A washer(30) is fitted to the outer periphery of the grinding rod and fixed to support a bearing.
Patent KR-20030080877-A (KR)
Title: Method of fabricating track of glass disk and tracking method for the glass disk
Inventor: LEE SI HYEONG
IPC: G11B11/105
Filed: 2002-04-11
Abstract: PURPOSE: A method for forming tracks of a glass disk and a method for tracking are provided to easily form a track pattern on a glass, thereby applying the method to an NFL(Near Field Recording) system recording optical information by using a slider. CONSTITUTION: A glass substrate(18) is prepared. A recording film(19) having magnetism is formed on the glass substrate. The recording film is formatted to have a magnetic domain in the same direction. In a state that a laser beam is applied to the recording film of the glass substrate and a magnetic field is applied to the recording film at the same time, the glass substrate is rotated to form coaxial tracks moving in a radial direction.
Patent KR-20030081713-A (KR)
Title: Method for detecting error of pressure sensor for lpg injection apparatus
Inventor: YOO TAE JUNG
IPC: F02M21/02
Filed: 2002-04-12
Abstract: PURPOSE: A method is provided to achieve improved reliability of the pressure sensor by diagnosing errors of the pressure sensor in accordance with the difference of the effective fuel pressure and the fuel pressure of the pressure sensor. CONSTITUTION: A method comprises the first step(301) of checking whether the condition for the diagnosis of the pressure sensor is satisfied; the second step(303,305) of increasing the diagnosis counter for counting the frequency of the error diagnosis on the pressure sensor if the condition is satisfied, and outputting the fuel pressure of the fuel tank calculated from the fuel pressure of the fuel supply line; the third step(307) of calculating, as an effective fuel pressure, the value obtained by adding the first predetermined value to the fuel pressure of the fuel tank; the fourth step(309,311) of checking whether the difference between the effective fuel pressure calculated in the third step and the fuel pressure of the fuel supply line is higher than the second predetermined value, judging as errors of the pressure sensor if the difference is higher than the second predetermined value, and increasing the error counter for counting the frequency of errors of the pressure sensor; the fifth step(313,315) of checking whether the diagnosis counter has reached the third predetermined value, checking whether the error counter has reached the fourth predetermined value if the diagnosis counter has reached the third predetermined value, and returning to the first step if the diagnosis counter has not reached; and the sixth step(317) of initializing the error counter and returning to the first step if the error counter has not reached the fourth predetermined value, and outputting an error signal if the error counter has reached the fourth predetermined value.
Patent KR-20030082118-A (KR)
Title: cross-flow fan
Inventor: JUNG IN HWA
IPC: F24F1/00
Filed: 2002-04-16
Abstract: PURPOSE: A cross flow fan is provided to reduce noise due to frequency of the fan by reducing sound pressure by installing blocks of the cross flow fan to keep fixed block pitch angle. CONSTITUTION: A cross flow fan has blocks(11) assembled so that the neighboring blocks have fixed block pitch angle in clockwise direction or counterclockwise direction from the blocks on one side to the blocks on the other side. The cross flow fan has a plurality of blades arranged in circumferential direction of a disk. The blades form one of the blocks. A plurality of the blocks are assembled in axial direction in order. Distribution of sound pressure is lowest when delta is larger than -0.18Z+11.433 and smaller than -0.18z+11.633 where Z is number of the blades and delta is the pitch angle of the blocks. Whether the blades are arranged at equal pitch angle or unequal pitch angle in each of the blocks is almost irrelevant to the cross flow fan, and has almost no influence on maximum sound pressure of BPF(Blade Passing Frequency). The blocks are assembled at fixed pitch angle to reduce sound pressure of the cross flow fan.
Patent KR-20030083376-A (KR)
Title: Rice transplanter for agricultural machine
Inventor: PARK SEONG TAE
IPC: A01C11/02
Filed: 2002-04-22
Abstract: PURPOSE: A transplanting apparatus connected to a tractor is provided to simultaneously perform a rotary work, stop work, and transplanting work. CONSTITUTION: The transplanting apparatus comprises a rotary(52) connected to the rear side of a powered tractor(52), a stopper(53) connected to the rear side of the rotary, and a transplanter(54) connected to the rear side of the stopper. The rotary is installed with a gear box and an attachment. The stopper is formed with a main stopping plate and an auxiliary stopping plate. The transplanter includes a transplanting frame, a lifting control cylinder, and a foldable device.
Patent KR-20020085796-A (KR)
Inventor: MERRILL JAMES T
IPC: C07B61/00
Filed: 2002-04-30
Abstract: PURPOSE: Provided is a method and a device capable of efficiently removing a phenylacetylene contaminant from aromatic polyvinyl feedstock, wherein the method comprises a catalyst that does not fail due to attrition or fluidization or other loss of activity. CONSTITUTION: The device for decreasing the level of a contaminant in a crude styrene feedstock, comprises (a) a crude styrene supply comprising an initial level of contaminant X, a crude styrene input stream, and a crude styrene output stream, wherein the crude styrene input stream is arranged to receive crude styrene from an ethylbenzene dehydrogenation unit, wherein the crude styrene is produced by dehydrogenation of ethylbenzene in the dehydrogenation unit; (b) a hydrogen source arranged to inject a first portion of hydrogen into the crude styrene output stream to produce stream B; and (c) a first catalyst bed arranged to receive stream B, wherein the first catalyst bed comprises a first catalyst bed output stream, wherein the first catalyst bed comprises a first catalyst having from about 0.01 to less than 0.3 weight percent palladium, and wherein the first catalyst bed output stream comprises a level of contaminant X less then the initial level.
Patent KR-20030087309-A (KR)
Title: Design optimization of plannar type write heads for ultra high density magnetic recording
Inventor: KIM GYEONG SUK
IPC: G11B5/31
Filed: 2002-05-08
Abstract: PURPOSE: A method for optimizing characteristics of a planner type recording head for super high density magnetic recording is provided to record information on a medium having high magnetocrystalline anisotropy by realizing a high recording magnetic field. CONSTITUTION: A characteristic of a recording head is optimized by changing shape parameters of the recording head by first, second, and third head-trimming methods having predetermined parts of the recording head as shapes and sizes of a, b, and c. In the first head-trimming method, b and c are fixed as predetermined values, and only a is changed, so that a head-trimming part has a step-like shape. In the second head-trimming method, a and c are fixed as predetermined values, and b becomes smaller, so that the characteristic of the head has a similar shape to the shape of the first head-trimming method. In the third head-trimming method, b and c are fixed as predetermined values, only a is changed, so that the characteristic of the head has a similar shape to the shape of the first head-trimming method.
Patent KR-20030087822-A (KR)
Inventor: CHO DONG HYEON
IPC: F25B30/04
Filed: 2002-05-10
Abstract: PURPOSE: A condensing system of a refrigerator is provided to improve condensing efficiency by joining an air-cooled condenser with a water-cooled condensing system or an evaporation type condensing system, and allowing only the air-cooled condenser to work or the air-cooled condenser and the water-cooled condensing system or the air-cooled condenser and the evaporation type condensing system to work together depending on outside air temperature, inside refrigerant pressure and condensing load. CONSTITUTION: An air-cooled condenser(100) includes a heat transfer tube(101) receiving high temperature and high pressure compressed refrigerant from a compressor, and bent zigzag; a plurality of fins(102) inserted to the heat transfer tube; and a condenser fan(103) placed on a front side thereof to forcibly introduce outside air so that the outside air is guided by the fins and exchanges heat with refrigerant flowing in the heat transfer tube. A water-cooled condenser(200) is installed on a refrigerant tube(201) placed between the compressor and the air-cooled condenser to allow water to flow in a water channel(202) near the refrigerant tube and exchange heat with refrigerant flowing in the refrigerant tube. A water inlet tube(203) and a water outlet tube(204) are connected to the water channel of the water-cooled condenser to allow water to be automatically supplied and discharged in a direction opposite to a direction in which refrigerant flows. An automatic water flow current control valve(205) is installed on an inlet side of the water inlet tube.
Patent KR-20030094825-A (KR)
Title: Pressure sensor using of saw
Inventor: CHEREDNICK VALENTIN
IPC: G01L9/00
Filed: 2002-06-08
Abstract: PURPOSE: A pressure sensor by using a slit elastic wave is provided to detect intensity of external pressure by using a relationship between a frequency and a speed of the slit elastic wave. CONSTITUTION: A pressure sensor includes a piezoelectric substrate(203) formed at an upper portion thereof with a thin film(205) and a lower portion thereof with a substrate having a slit(204). A slit elastic wave passes through the slit(204) of the piezoelectric substrate(203). An input IDT(201) is provided to convert an electric input signal into the slit elastic wave. An output IDT(202) is aligned in opposition to the input IDT(201) in order to receive the slit elastic wave and to convert the slit elastic wave into the electric signal. The slit elastic wave is propagated through the piezoelectric substrate(203).
Patent KR-20040000982-A (KR)
Title: Welding gun device for a spot welding robot system
Inventor: JUNG JAE HWAN
IPC: B23K11/11
Filed: 2002-06-26
Abstract: PURPOSE: A welding device for a spot welding robot system is provided to easily carry out a spot welding work with respect to a welding section having a large sectional surface. CONSTITUTION: A welding device for a spot welding robot system includes a jig plate(13) for supporting a welding object(10) by using an assembling jig(11). An electrode block(17) is installed at a position corresponding to a welding section(15) of the welding object(10). A fixing electrode(19) is fixedly installed on the electrode block(17). A hinge section(23) is formed at a front end of a robot arm(21) of a spot welding robot system. A movable electrode(25) is hinged to the hinge section(23) corresponding to the fixing electrode(19). An electrode driving device is provided at one side of the robot arm(21). A fixing plate is fixed to the electrode block(17) through an insulator.