baber/WOPTO huggingface dataset:
Patent KR-20040075543-A (KR)
Inventor: HAN YO HAN
IPC: C07D307/32
Filed: 2003-02-21
Abstract: PURPOSE: A method for preparing gamma-butyrolactone from maleic acid ester is provided, thereby improving the preparation yield and purity of gamma-butyrolactone under mild condition, and stably preparing the gamma-butyrolactone for a long time. CONSTITUTION: The method for preparing gamma-butyrolactone from maleic acid ester comprises hydrogenation of maleic acid ester in the presence of catalyst of formula: CuO(a)MnO2(b)M(c)SiO2(d) at atmospheric pressure to 12 atmosphere and 150 to 280 deg. C, wherein a, b, c and d are percentage of weight; a is 40 to 90: b is 0.15 to 5; c is 0.001 to 5; d is 5 to 50; and M is one or more metal oxides selected from Zn, Pt, Pd, Re, Ru, Rh, Ca and Mg; the catalyst is activated at 100 to 250 deg. C for 1 to 60 hours prior to the hydrogenation; the maleic acid ester is selected from dimethyl maleate, diethyl maleate, dipropyl maleate, diisopropyl maleate and dibutyl maleate.
Patent KR-20040076489-A (KR)
Inventor: KIM DA OK
IPC: A44C27/00
Filed: 2003-02-26
Abstract: PURPOSE: Provided are a composition jewelry with a thin metal film which has no limit in a thickness and a shape by installing a thin metal film in a composite jewelry, and a preparation method thereof. CONSTITUTION: The composition jewelry(1) with a thin metal film comprises an upper layer(10), a lower layer(20) and a thin metal film(30) attached between the upper layer(10) and the lower layer(20) by an ultraviolet adhesive. The thin metal film has a thickness of 0.001 to 0.025 mm. The preparation method comprises the steps of: arraying a thin metal film together with the lower layer; bonding the lower layer and thin metal film by an adhesive and irradiating an ultraviolet; forming the thin metal film by an etching process; bonding the upper layer by the adhesive and irradiating an ultraviolet; and processing the composition jewelry(1) in a determined form.
Patent KR-20040082164-A (KR)
Inventor: PARK DO SEO
IPC: F16D27/10
Filed: 2003-03-18
Abstract: PURPOSE: A clutch is provided to increase the productivity of the clutch by reducing manufacturing cost and manufacturing hours, and to actuate the clutch with little power by activating the magnetic flux of an electromagnet. CONSTITUTION: A clutch(100) is composed of a bracket(110) having an electromagnet containing part(112) containing an electromagnet, and an installation part(114) mounted to a head part(113a) of a first diving body(113); a flange fixed to the bracket to activate the magnetic flux of the electromagnet; a pulley(130) having an inner side(131) rotated and supported to the head part, an outer side(132) interlocking with a second driving body, and an upper part(133) connecting the inner side to the outer side with a friction surface(133a), and storing the electromagnet containing part; a stopper plate(140) fixed to a rotating shaft(113b) of the first driving body, and composed of a friction disk(143) contacted to the friction surface in actuating the electromagnet.
Patent KR-20040083777-A (KR)
Inventor: CHOI HUI JEONG
IPC: A01K61/00
Filed: 2003-03-25
Abstract: PURPOSE: A marine culture system for seed production of black pearl shellfish is provided to make the commercialization of the artificial seed production of black pearl shellfish possible by optimizing the culture environment and by epochally improving the growth and survival rate of the larva of black pearl. CONSTITUTION: The marine culture system for the seed production of black pearl shellfish includes; a grid-type frame(2), arranged on the sea and culturing a larva of black pearl shellfish; many cylindrical culture equipments(3), vertically arranged in the inner space of the frame(2); a main water pipe(4), installed along the inside of the frame(2) to supply a natural sea water to the culture equipments(3); an underwater pump(5), connected via a main valve(6) with the main water pipe(4) so as to supply the natural sea water thereto; many main water valves(7) arranged at determined intervals on one side of the main water pipe(4); a cylindrical net(8) for removing harmful organisms; and a washing hose(9).
Patent KR-20040088890-A (KR)
Inventor: KIM YEON SU
IPC: G02B6/44
Filed: 2003-04-14
Abstract: PURPOSE: A metallic optical cable of a circular structure using a tight buffer type optical fiber unit is provided to simplify a manufacturing process by removing a process for coating an external tensile member. CONSTITUTION: A metallic optical cable of a circular structure using a tight buffer type optical fiber unit includes a tensile line, an optical fiber unit, a metallic tensile wire, and a plastic resin. The tensile line(51) is extended from a center of an optical cable to the longitudinal direction of the optical cable. The tensile line is formed with a metallic material. The optical fiber unit(60) includes tight buffer optical fibers. A cable core assembly is formed by the tensile line, the optical fiber unit, and the metallic tensile wire(70). The plastic resin is used for covering the cable core assembly.
Patent KR-20040095796-A (KR)
Inventor: LEE CHANG HYEON
IPC: H01L21/8247
Filed: 2003-04-28
Abstract: PURPOSE: A non-volatile memory device is provided to increase a potential barrier and reduce leakage current by using a metal layer having a higher work function as a control gate electrode. CONSTITUTION: A gate insulating layer(54) is formed on an upper surface of a semiconductor substrate(50). A charge storage layer(56) is formed on an upper surface of the gate insulating layer. A blocking insulating layer(58) is formed on an upper surface of the charge storage layer. A control gate electrode(60) is formed on an upper surface of the blocking insulating layer. The control gate electrode is formed with a metal layer. A work function of the control gate electrode is higher than a work function of polysilicon.
Patent KR-20030086237-A (KR)
Title: 폴리에스테르 조성물
IPC: B29C51/00
Filed: 2003-04-29
Abstract: 본 발명은, 열성형 방법으로 용기 및 유사한 형상의 제품을 형상화 또는 형성하는데 특히 유용한 특정 신규한 폴리에스테르 조성물에 관한 것이다.  상기 폴리에스테르 조성물은 열가소성 폴리에스테르, 충격 개질제(impact modifier), 및 폴리(테트라메틸렌 테레프탈레이트) 단독- 및 공중합체로부터 선택된 폴리에스테르 결정화 속도 향상 성분을 포함한다.  상기 폴리에스테르 조성물은 충격 개질제를 포함하지 않는 유사한 조성물 또는 폴리올레핀계 중합체와 같이 다른 유형의 결정화 속도 향상 성분을 사용한 조성물과 비교하여 개선된 결정화 속도를 나타낸다.
Patent KR-20040093772-A (KR)
Inventor: NOH JAE U
IPC: G11B7/0065
Filed: 2003-04-30
Abstract: PURPOSE: A holographic digital data reproducing system compatible with a CD and a DVD is provided to deflect a reference light at different angles according to a diffraction rate by using a holographic optical member, and to supply the deflected light to a storage medium. CONSTITUTION: A light source(100) generates a reference light for reproducing. A holographic optical member(110) consists of plural diffraction gratings which diffract the reference light at different deflection angles. An actuator(115) moves the holographic optical member(110), and changes positions of the diffraction gratings where the reference light is incident. A storage medium(120) generates a reflected light by responding to the reference light deflected by one of the diffraction gratings. A light receiving unit(140) senses the reflected light.
Patent KR-20040095517-A (KR)
Inventor: JUNG HOE JO
IPC: F02M35/02
Filed: 2003-05-09
Abstract: PURPOSE: An air cleaner is provided to recycle other components, and to cut down replacement expenses of the air cleaner by replacing the filtering paper of the air cleaner for removing dust among air into a combustion chamber of an engine. CONSTITUTION: An air cleaner comprises a filter(1) creased to filter impurities from suction air; a filter frame(2) integrally formed with the filter to support the shape of the filter; a gasket attached to the filter frame to seal the air cleaner; a filter placing part creased to contact the lower part of the filter; a filter fixing part fitted to the upper part of the filter after fixing the filter in the filter placing part for preventing displacement of the filter; and a filter press unit protruded downward around an air cleaner box cover and placed in the upper part of the filter fixing part to press the filter fixing part. The filter fixing part is composed of a push part(24) inserted to the recess of the filter, and a grip part(26) for easily displacing the filter fixing part in replacing the filter.
Patent KR-20030064665-A (KR)
Inventor: PARK SEUNG BAE
IPC: G06F21/31
Filed: 2003-05-12
Abstract: PURPOSE: A password system for processing a password inputted by cell matching is provided to make a watcher not know the password inputted by a user in case that a password input process is exposed. CONSTITUTION: The system displays a matching board and a reference board on a user interface(101). The user selects an unspecified cell from the matching board(102). The user matches the cell selected from the matching board with the cell including a password symbol on the reference board by carrying out an operation to the matching board(104). The user informs the system that the matching between the selected cell and the cell including the password symbol is completed(107).
Patent KR-20040106718-A (KR)
Inventor: HWANG TAE SU
IPC: H01J11/24
Filed: 2003-06-11
Abstract: PURPOSE: A plasma display panel is provided to reduce black luminance so as to improve contrast by forming protruded transparent electrodes projected from transparent electrodes and a connecting part for connecting neighboring protruded transparent electrodes. CONSTITUTION: A plasma display panel includes transparent electrodes(214A,216A) arranged in a stripe pattern, protruded transparent electrodes(214C,216C) respectively, projected from the transparent electrodes, and a connecting part(220) for connecting the protruded transparent electrodes. The plasma display panel further includes metal electrodes formed in the respective transparent electrodes, and barriers for separating neighboring discharge cells from each other. The connecting part is superposed on the barriers.
Patent KR-20040110566-A (KR)
Inventor: JUNG JAE HUN
IPC: A61B1/04
Filed: 2003-06-19
Abstract: PURPOSE: A micro robot is provided to examine intragastric condition without causing damage to a patient, by permitting the micro robot to move in a desired direction in the stomach of the patient. CONSTITUTION: A micro robot comprises a main body unit(100); a tail unit(200) which rotates centering from a point in the main body unit such that the main body moves in a liquid; and a driving unit(300) having an end arranged in the main body unit such that the driving unit is rotatable. The driving unit is connected to the tail unit and generates driving forces to rotating the tail unit. The main body unit is equipped with a camera(110) for obtaining image information.
Patent KR-20050000264-A (KR)
Inventor: KIM JOON SOO
IPC: H04L27/26
Filed: 2003-06-23
Abstract: PURPOSE: A frequency offset estimator of a multi-carrier receiving system and a method for estimating a frequency offset thereof are provided to minimize loss of subcarrier signals by estimating a frequency offset by a guard band inserted into a frequency domain. CONSTITUTION: One or more electric power calculating units calculate electric power for a signal of a guard band inserted into a multi-subcarrier signal of a frequency domain. An adder(450) is used for determining a frequency offset by using the electric power calculated from the electric power calculating unit. The electric power calculating unit includes a first electric power calculating unit(410) for calculating first electric power for a first guard band inserted into a front part of the multi-subcarrier signal of the frequency domain and a second electric power calculating unit(430) for calculating second electric power for a second guard band inserted into a rear part of the multi-subcarrier signal of the frequency domain.
Patent KR-20050000584-A (KR)
Inventor: HAN JAE WON
IPC: H01L21/3213
Filed: 2003-06-24
Abstract: PURPOSE: A sputter-etching method is provided to restrain remarkably particles from falling out of an inner wall of a chamber by coating previously a metallic thin film on the inner wall of the chamber using a predetermined wafer for setting desired chamber conditions. CONSTITUTION: A predetermined wafer(31) used for setting desired chamber conditions is loaded in a chamber(30). A metallic thin film is coated on an inner wall of the chamber by performing sputter-etching on the wafer. The wafer is unloaded from the chamber. A semiconductor substrate with a predetermine thin film is loaded in the chamber. Etching is performed on the predetermined thin film of the substrate.
Patent KR-20050005655-A (KR)
Inventor: PARK JEONG GEUN
IPC: H01L21/027
Filed: 2003-07-07
Abstract: PURPOSE: A cooling oil supply control apparatus and a method of controlling supply of cooling oil are provided to prevent contaminants by measuring contaminative density of cooling oil within a storage container. CONSTITUTION: A sensing unit(20) checks contaminative density of cooling oil within a storage container. A controller(30) is used for comparing the measured contaminative density of the cooling oil and the reference contaminative density of the cooling oil. A switching unit(50) is installed at an inflow line for receiving the cooling oil and controls the supply of the cooling oil by a command of the controller.
Patent KR-20050007081-A (KR)
Inventor: KIM SOON YONG
IPC: B60S1/64
Filed: 2003-07-11
Abstract: PURPOSE: A cleaning device of an engine room for a vehicle is provided to previously prevent the damage of various electronic components inside the engine room by injecting high-pressure gas into the engine room and forcibly discharging the gas with foreign substances. CONSTITUTION: A cleaning device of an engine room comprises a gas generation unit(100), a gas injection unit(200), a gas discharge unit(300) and a switch(400). The gas generation unit generates high-pressure gas by arranging inside the engine room and interlocking with an engine(500). The gas injection unit injects the high-pressure gas from the upper part to the lower part of the engine room by interlocking with the gas generation unit. The gas discharge unit sucks the gas with foreign substances and discharges the gas outside by arranging in the lower part of the engine room and interlocking with the gas generation unit. The switch controls the gas generation unit, the gas injection unit and the gas discharge unit by connecting with a power device(410). A driver injects the high-pressure gas into the engine room and discharges the gas with the foreign substances forcibly only by the control of the switch. Thereby, the inside of the engine room is maintained cleanly.
Patent KR-20050007840-A (KR)
Inventor: KIM DAE JOONG
IPC: E04G13/06
Filed: 2003-07-11
Abstract: PURPOSE: A method for constructing a floor slab with a parapet is provided to prevent pollution of the building by restricting leak between the parapet and the floor slab and preventing rainwater from being collected concentrically. CONSTITUTION: To construct a floor slab with a parapet, a supporting bar(20) is fastened inside as the thickness of the parapet from the edge of the floor slab before pouring floor slab concrete(11). The floor slab concrete is poured and cured into the form to make the floor slab and the supporting bar, and the sill is formed along the edge of the floor slab as high as the supporting bar. The parapet is constructed in the upper part of the sill, and a waterproof material is spread to the inside of the sill and on the upper part of the floor slab. Rainwater is streamed out of the waterproof material, and flowed down along the inside of the parapet.
Patent KR-20040010318-A (KR)
Inventor: ITO YOSHITAKE
IPC: G03F7/30
Filed: 2003-07-22
Abstract: PURPOSE: A method and a device for development are provided to perform properly a developing treatment, and a method and a device for treating the solution are provided to improve the uniformity of the processes. CONSTITUTION: A device is composed so that gas discharge from a first peripheral region(α) of a substrate before being treated, and gas charge from a second peripheral region(β) between the first peripheral region and the substrate are freely possible. Therefore, it is possible to weaken the influence of airflow on the developer on the substrate, and to make the developer to be used for the developing treating act properly on an exposed resist on the substrate.
Patent KR-20050017416-A (KR)
Inventor: HAN HEE YUN
IPC: C21B7/20
Filed: 2003-08-01
Abstract: PURPOSE: To provide an apparatus for properly controlling distribution position of charging materials injected into a blast furnace and selectively charging the charging materials into the center of the side surface of the blast furnace, thereby uniformizing gas flow inside the blast furnace to secure stability of blast furnace operation and improve productivity of the blast furnace operation accordingly. CONSTITUTION: An apparatus for controlling distribution of charging materials into blast furnace comprises a lifting-and-lowering part(20) comprising a liftable and lowerable shaft(10) that is vertically liftable and lowerable through a charging hole of the blast furnace, and a liftable and lowerable cylinder(12) for operating the liftable and lowerable shaft; a rotary part(30) comprising a double pipe(32) coaxially connected to the liftable and lowerable shaft such that the double pipe is movable relative to the liftable and lowerable shaft, a bearing(36) through which the rotary part is rotatably mounted on the blast furnace, a conical cone member(38) mounted on an intermediate portion of the rotary part, and a rotary cylinder(40) installed at one side of the rotary part such that the double pipe is rotated; and a distribution part(60) comprising a plurality of collision plates(62) an upper portion of which is rotatably connected to a lower portion of the double pipe, wherein the inner side of the collision plates is connected to a lower portion of the liftable and lowerable shaft through slots and connectors such that slope of the collision plates is adjusted by operation of the liftable and lowerable cylinder to control distribution angle of the charging materials.
Patent KR-20030071695-A (KR)
Inventor: SHIN GI YEOL
IPC: H05K3/00
Filed: 2003-08-11
Abstract: PURPOSE: A PCB fixing hanger is provided to easily fix a PCB supplied into a drying apparatus and to prevent an interference problem with other parts. CONSTITUTION: A hanger receiving groove is formed at a side plate, and a both-end part(155) is formed at both sides so as to be controlled by a hanger clamp. The hanger receiving groove and the both-end part form a hanger body(161). A plurality of PCB clamps(165) are prepared at the hanger body and correspond to size and sort of a PCB so as to fix the PCB to be dried. The PCB clamp(165) includes a bracket(166) fixed at a top of the hanger body having a rib(162), a hinge plate integrated with the bracket, a horizontal part(168) formed at a top of the hinge plate, a vertical part(169) becoming downward, and a fixing part(171). A support is configured to support the PCB. Spring pins are fixed at rear sides of the bracket and lower parts of the fixing part. An extension spring(180) is configured such that a sharp part(170) of the fixing part is pulled in a direction of a contact part.
Patent KR-20050020362-A (KR)
Inventor: JU WON JUNG
IPC: F16L3/137
Filed: 2003-08-22
Abstract: PURPOSE: A multistage clamp for fixing a wire harness is provided to fasten the wire harness firmly regardless of the thickness of the wire harness by fastening the clamp body according to the thickness of the wire harness with plural screw insertion holes formed in the clamp body. CONSTITUTION: A multistage clamp for fixing a wire harness is composed of a fixing screw(300), a clamp body(100) having plural screw insertion holes(110) penetrated by the fixing screw, and a fixing part(200) extended in the end of the clamp body and composed of a screw insertion hole(220) penetrated by the fixing screw in the center and rails formed at both ends to slide and insert the end of the clamp body. The screw insertion hole is formed of the uneven hole by connecting plural screw insertion holes, and the clamp body is made of steel. The surface of the steel clamp body is coated by soft plastic.
Patent KR-20040018953-A (KR)
Inventor: OKAZAKI JUN
IPC: H04L12/64
Filed: 2003-08-25
Abstract: PURPOSE: To provide a network bridge device and a method in which transmission/reception of data between mutual networks can be executed by facilitating identification of apparatuses between the networks having different specifications. CONSTITUTION: AV apparatuses 15, 16 connected to a radio network 14 are detected via a radio I/F part 18. Identification information(Self_ID) for adding the detected AV apparatuses 15, 16 to a 1394 bus 12 is generated and it is transmitted to the 1394 bus 12 via a 1394 I/F part 17.
Patent KR-20050023073-A (KR)
Inventor: LEE HYUNG WOONG
IPC: A47G33/02
Filed: 2003-08-29
Abstract: PURPOSE: Provided is a mortuary memorial tablet with a function of DNA preservation of the deceased, so that the DNA is used for medical purposes including identification of paternity test and hereditary (genetic) diseases. CONSTITUTION: The mortuary memorial tablet includes a main body(10), an upper body(20) detachably attached to the top portion of the main body(10) and having an internal mount groove(21), and a DNA tablet(30) storing DNA of the deceased and being inserted into the mount groove(21) of the upper body(20). The DNA tablet(30) includes a record of personal information and a picture of the deceased. In particular, the DNA tablet(30) is composed of a main body having an internal space, and a DNA capsule placed in the space for storing the DNA of the deceased.
Patent KR-20050028961-A (KR)
Title: Method for producting semiconductor device
Inventor: KANG JAE IL
IPC: H01L21/28
Filed: 2003-09-17
Abstract: A method for fabricating a semiconductor device is provided to reduce bitline capacitance and improve an operation characteristic by using an oxide layer with a low dielectric constant on the sidewall of a bitline. A barrier layer, a tungsten layer(30), an oxide layer for a hard mask layer and a nitride layer(32) are sequentially formed on a semiconductor substrate(20) having a predetermined underlying layer. The nitride layer for the hard mask, the oxide layer, the tungsten layer and the barrier layer are patterned to form a bitline. The resultant structure is oxidized to form an oxide layer on the sidewall of the tungsten layer. The first nitride layer spacer(36) is formed on both sidewalls of the bitline including the sidewall oxide layer. An insulation layer is formed on the resultant structure. The insulation layer is etched to form a contact hole exposing a region between the bitlines. The second nitride layer spacer(37) is formed on the sidewall of the contact hole. A conductive layer is filled in the contact hole in which the second oxide layer spacer is formed on its sidewall to form a storage contact.
Patent KR-20050030291-A (KR)
Title: Disk drive
Inventor: EUM JAE YONG
IPC: G11B23/03
Filed: 2003-09-25
Abstract: A disk drive is provided to uniformly distribute stress caused while being in contact with a disk cartridge, so that the stress can not be concentrated on a certain part, thereby improving durability and realizing a quiet operation by reducing noise. A tray(220) is mounted with a disk cartridge(221), and is installed to enter a main frame(210). A base chassis(240) is supported on a sub frame(230) rotatively installed on the main frame(210). A shutter opening/closing device(250) is installed on one side of the main frame(210), and opens/closes a shutter of the disk cartridge(221) inserted into the main frame(210). The base chassis(240) comprises as follows. A turn table(241) is mounted with the disk cartridge(221) transferred to the inside of the main frame(240). A spindle motor rotates the turn table(241). An optical pickup device(242) slides in radial direction of a disk(D), and records information on the disk(D) or reproduces the recorded information.