baber/WOPTO huggingface dataset:
Patent KR-19990044989-A (KR)
Title: 가스 혼합물 내의 두 전극 사이에서 전기 방전에 의해 기판의표면을 처리하는 방법 및 장치
IPC: B05D3/14
Filed: 1998-11-04
Abstract: 본 발명은 복수의 전극상에 침전가능한 부산물(예를 들어, 파우더)을 발생하는 가스 혼합물 내의 두 전극 사이에서 전기 방전에 의해 기판(substrate)을 표면 처리하는 장치에 관한 것이다. 
     복수의 전극중 하나의 전극(9)은 기판이 제공되는 롤러이고, 롤러와 기판을 회전시키고 복수의 전극 사이에서 가스 혼합물을 분사하는 수단이 제공되며, 제2 전극은 유동 기판이 제공되는 롤러 전극(11)이고, 이 롤러(11)는 적절한 갭으로 다른 롤러(9)와 평행하게 배치된다.  이러한 배열에 의하여 기판(3)은 각 전극(11)을 보호하고, 처리되는 동안 각 전극이 파우더로 도포되는 것을 방지할 뿐만 아니라 오염물질이 도포되는 것을 방지하며, 따라서 본 장치가 계속적으로 동작 가능하게 하는 것이다.
Patent KR-20000031373-A (KR)
Title: Method for evaluating sealing efficiency
Inventor: KIM JEONG JU
IPC: H01L21/306
Filed: 1998-11-05
Abstract: PURPOSE: A method for evaluating a sealing efficiency is provided to evaluate the sealing efficiency in-situ at a real performance of the processing after sealing an anodizing cathode. CONSTITUTION: An evaluating method of sealing efficiency is performed an etching process of wafer after loading the wafer in an etching chamber performed the etching process. A polluted degree of an anodizing cathode is evaluated in-situ in the etching chamber using a measuring and analyzing apparatus of metal pollution. The evaluating method of sealing efficiency contains an early washing step(100), an installing step of anodizing cathode inside the chamber(102), an etching step of wafer(104), an evaluating step of metal pollution(106), and an evaluating step of RF time, degree of metal pollution, and sealing efficiency(108). The early washing step(100) is a step to remove dopant and particles remained in the wafer for measuring the polluted degree. Then the measuring of the metal polluted degree is easy by growing an oxide film over 3000 Angstrom on the wafer.
Patent KR-20000032041-A (KR)
Title: Method for manufacturing tft-lcd
Inventor: YUN CHAN JU
IPC: G02F1/136
Filed: 1998-11-12
Abstract: PURPOSE: A TFT-LCD is provided by forming a structure of a lightly doped drain on the substrate in a thin film transistor, and by improving the characters of the thin film transistor through rising up the crystallization around the area of a junction in semiconductor margin. CONSTITUTION: A preparation of a TFT-LCD consists of the following process orderly: Multi-crystal silicon pattern are formed each to N-type TFT (Thin Film Transistor) margin of a pixel section, and to the TFT margin of N-type and P-type in driving circuit section, on the clear insulation substrate; after evaporating an insulating layer in vacuum on above substrate, the first and the second metallic layer, which are large in the selection ratio of an etching, put into the vacuum evaporation continuously; and the metal pattern with a double layer, which has the under-cut structure that the bottom layer has been etched with more width than the upper layer for N-type TFT margin, is formed on the upper insulating layers of every multi-crystal silicon pattern after etching the second and the first metal layers, and then leaves the first and the second metal layer behind in the state of covering fully the multi-crystal silicon pattern for P-type TFT margin.
Patent KR-20000032751-A (KR)
Title: Apparatus for printing image file of printer
Inventor: PARK DONG CHAE
IPC: G06K1/00
Filed: 1998-11-17
Abstract: PURPOSE: An apparatus for printing image file of a printer is disclosed to simplify the image file printing process and to eliminate the execution of additional programs by enabling the printer to interpret the image file's header and to convert the file into a printable data. CONSTITUTION: An apparatus for printing image file of a printer is composed of reception, analyzation, conversion, relocation, inspection, and print execution. A CPU(100) receives the computer's printer command or file through an interface unit(500), analyzes the command and converts file into a printable data. A converted data is temporarily stored in the memory(200) and then sent to the engine(300). When the image data is sent to the engine, command handler(600) reads the header to determine if the data is an image file, and if image file, swatch builder(700) inspects the image's size, color, and other information and converts it into a printable data. After conversion of data is complete, image file is printed and the OPE(400) displays the printing process and when printing is complete, printer is returned to ready state.
Patent KR-20000033466-A (KR)
Title: Method for implementing interactive operational availability using asm test bed
Inventor: JANG DONG WON
IPC: H04L12/433
Filed: 1998-11-24
Abstract: PURPOSE: A method is provided to implement an interactive operational availability by using an ATM(asynchronous transfer mode) test bed when an ATM network and an existing network are combined. CONSTITUTION: Implementing items written by suiting for an international standard yields a PIXIT(protocol implementation extra information for testing) after yielding a PICS(protocol implementation conformance statement) as an information embedded in an SUT(system under test) at first. An appropriate implementing item is selected according to a result of analysis after analyzing the yielded result of the PCIS and the PIXIT. The implementation about the selected implementing items is performed. A report of result is written through an outputting device after analyzing the performed result. The invention is recorded in a recording media to be read by a computer and is processed by the computer.
Patent KR-20000033478-A (KR)
Title: Microwave oven able to shield leakage of electromagnetic waves easily
Inventor: YUN YONG SEOP
IPC: F24C7/08
Filed: 1998-11-24
Abstract: PURPOSE: A microwave oven able to block the leakage of electromagnetic waves easily is provided to easily reduce the electromagnetic waves leaked from a microwave oven without applying a complex structure or components. CONSTITUTION: A magnetron generates 2.45GHz high frequency electromagnetic waves according to the operation of a microwave oven via an operation panel(7) after placing a food. The electromagnetic waves are reflected on the metal forming an inner part of a microwave oven, transmitted through glass or ceramic dishes and absorbed in organic substance containing water such as fish and meat. Herein, the molecules of the food are rotated and vibrated by the electromagnetic waves, and a friction force is generated. After a certain time, the food is heated at moderate temperature. Even though the high frequency electromagnetic waves are generated in a body(3), a gap(9) composing one slot corresponding to half of the operation frequency wave length(gamma) is divided into 1/4 of the wave length by one conducting ridge(11), furthermore shortened to 1/8 of the wave length by three conducting ridges. Herein, the length of the gap as a slot antenna is shortened. Thereby, a considerable portion of the electromagnetic waves leaked out of a microwave oven is blocked.
Patent KR-20000038763-A (KR)
Title: Method and device for simulating torch brazing
Inventor: KIM SUK HWAN
IPC: B23K31/12
Filed: 1998-12-09
Abstract: PURPOSE: A torch brazing method and a device thereof are provided to test various brazing performances and to apply a torch brazing method to real conditions by using a small test piece. CONSTITUTION: A small test piece(E) is punched to be accorded with the diameter of a material by the operation of a test piece holder(30) having a lower support stand(20) with a die(21) elevating by hydraulic pressure and a punch. A burr is formed around the through hole. A semicircular groove able to minimize thermal deformation due to brazing is formed on the edge of the test piece by a protruded part(22) formed on the upper face of the lower support stand. The lower support stand is replaced with a jig to prevent face contacting of the test piece interposed between the upper test piece. A welding torch for heating and a wire supply device having a delivery roll for supplying wire are installed on the outer part of a pipe fixed in vertical to the jig. Herein, brazing performance is tested while controlling the height and the angular degrees selectively according to the brazing condition.
Patent KR-20000041282-A (KR)
Title: Methof for dewatering of sludge
Inventor: KIM JAE SIN
IPC: C02F11/12
Filed: 1998-12-22
Abstract: PURPOSE: A method for dewatering sludge is provided, which is characterized in that press rollers and belt press are installed so that water in the sludge is removed efficiently. CONSTITUTION: A sludge is dewatered by press rollers(30,40) and the water is dropped by gravitation. But the water near the belt press is returned to the inside of the sludge. So, inside of the press roller(30) is in vacuum condition to removed remained water. Sludge is passed through the space between the upper belt(10a) and the lower belt(10b), and transferred to the press roller(30) in vacuum condition. The proper pressure is 200 - 600 mmHg. The surface of the roller is composed of a specific material, which has absorptive property because the water is removed easily by capillary tube phenomenon. Sponge or cotton material is appropriate.
Patent KR-20000041741-A (KR)
Title: Test socket of bga(ball grid array) device and wafer where csp(chip scaled package) device is formed
Inventor: YOON SANG JAE
IPC: H01L23/50
Filed: 1998-12-23
Abstract: PURPOSE: A test socket of a BGA(Ball Grid Array) device is provided which can prevent the separation or the variation of a solder ball due to a contact force. And, the test socket can connect a wafer where a CSP device is formed with a test equipment. CONSTITUTION: A test socket of a BGA device prevents the separation or the variation of a solder ball due to the contact force by contacting a contact so that a uniform force is applied to the surface of the solder ball during wiping operation to remove a natural oxide formed on the solder ball. And, also the test socket can connect a wafer where a CSP device is formed with a test equipment by making a module of contact which can apply a uniform force to a surface of the solder ball when connecting the solder ball on the wafer and the test equipment electrically. The test socket of the BGA device comprises a housing(10) where an installation part of the BGA device is formed and a number of contacts(20) penetrating holes are formed in the inside of the installation part, and the contact where a conductive material is deposited on the surface of the penetrating holes. And the wafer test socket comprises a wafer housing where an installation part installs the wafer and a contact module corresponding to the CSP device.
Patent KR-20000043683-A (KR)
Title: Ultraviolet curing resin composition for coating steel material and resin coated steel sheet using same
Inventor: LEE DONG YEOL
IPC: C08F220/00
Filed: 1998-12-29
Abstract: PURPOSE: An ultraviolet curing resin composition using phosphoric acid acrylate and an ultraviolet cured resin coated steel sheet provided which have processability and hardness necessary for industrial applications simultaneously and excellent adhesion. CONSTITUTION: A composition comprises 50 to 55 parts by weight of an urethane oligomer, 45 to 55 parts by weight of a diluent, 3 to 5 parts by weight of an acid compound, 3 to 8 parts by weight of a photo initiator, and 3 to 5 parts by weight of phosphoric acid acrylate for improving adhesion to a steel sheet. The ultraviolet cured resin coated steel sheet is prepared by radiating ultraviolet rays to the resin coated steel sheet in the range of wave length 200-400 nm for 1 to 10 sec in a ultraviolet curing machine.
Patent KR-20000043994-A (KR)
Title: Semiconductor package and method for manufacturing the same
Inventor: HAN IN GYU
IPC: H01L23/12
Filed: 1998-12-29
Abstract: PURPOSE: A semiconductor package and a method for fabricating the semiconductor package are provided to improve the function of the semiconductor package and to prevent wire bonding errors and a warpage of the wire by bonding the chips to an adhesive instead of epoxy resin. CONSTITUTION: A carrier frame(1) is formed with a window. An adhesive(2a) in the form of an opened finger area of a circuit tape(3) is attached at a lower portion of the carrier frame(1). The circuit tape(3) is attached to a lower portion of the adhesive(2a) and has a circuit therein. A chip(4) is adhered to a die bonding area of the adhesive(2a). A bonding pad of the chip(4) and a finger(3a) of the circuit tape(3) exposed through the opened finger area of the adhesive(2a) are connected to each other by a conductive connection member(5). A mold body(6) is formed at an upper portion of a window opening area of the carrier frame(1) to seal the chip(4) and the conductive connection member(5). A solder ball(7) which is a connection terminal of an external power is attached to a lower portion of the circuit tape(3).
Patent KR-20000045463-A (KR)
Title: Method for forming storage electrode of semiconductor device
Inventor: KIM JIN BAE
IPC: H01L27/108
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming storage electrode of semiconductor device is provided to completely remove the residue of a storage electrode conductive layer to eliminate the cause of particles. CONSTITUTION: A method for forming storage electrode of semiconductor device comprises steps of: forming a first interlayer dielectric having a bit line contact plug and a storage electrode contact plug on a semiconductor substrate; forming bit lines connected to the bit line contact plug; forming an insulating spacer on sidewall of the bit lines; forming a second interlayer dielectric having a contact hole exposing the storage electrode contact plug; forming a conductive layer connected to the storage electrode contact plug; etching the conductive layer by using a photoresist pattern as a mask; removing the photoresist pattern; and removing the second insulating layer to expose the conductive layer.
Patent KR-20000046074-A (KR)
Title: Manufacturing method of semiconductor device
Inventor: CHO WAN HUI
IPC: H01L21/336
Filed: 1998-12-31
Abstract: PURPOSE: A method of manufacturing a semiconductor device is to minimize a surface area of an active region by forming an active contact on an oxide film. CONSTITUTION: After an active region is defined by forming a field oxide film(2) on a semiconductor substrate(1), the substrate comprising the active region is deposited with an amorphous silicon layer(3). A first photoresist film pattern is formed on a selected region of the amorphous silicon layer. The amorphous silicon layer is etched by using the first photoresist film pattern as a mask. After the first photoresist film pattern is removed, the substrate comprising the amorphous silicon layer is deposited with a gate oxide film(5). A polysilicon layer(6) is deposited on the substrate comprising the gate oxide film. A second photoresist film pattern(7) is formed on a selected region of the polysilicon layer to form a gate electrode. The polysilicon layer is etched to form a polysilicon pattern. The substrate is deposited with a spacer oxide film, and is etched by using a blanket etching process to form an oxide film spacer(9) on both sides of the polysilicon pattern.
Patent KR-20000046266-A (KR)
Title: Vehicle tire for preventing abnormal abrasion
Inventor: LEE JAE HONG
IPC: B60C11/03
Filed: 1998-12-31
Abstract: PURPOSE: A tire for a vehicle is provided to prevent the decrease of abrasion resistance in the tire and the abnormal abrasion generated on a front and a rear face of block. CONSTITUTION: When a tread(1) face is abraded up to a start point of a slant protrusion part(4) by the travelling of tire, an upper face(40) of the slant protrusion part formed on a side wall(30) of a groove(3) is exposed. As a new block is formed, the abrasion resistance is improved by increasing the earthing area that the tread face contacts the surface. Further, the upper face(40) is slant with the upper face of the block(2) within a range of 1 to 30 degrees while the side wall(41) of the slant protrusion is slant at 1 to 45 degrees. Accordingly, the abrasion speeds of the block rear end(21) and front end(20) are equalized so that the abnormal abrasion is suppressed.
Patent KR-19990028896-A (KR)
IPC: G02F1/13357
Filed: 1997-05-09
Abstract: A liquid-crystal projection device according to the present invention comprises an organic electroluminescent element 12 that is constituted by sandwiching an organic thin-film layer (125) between an electrode layer (126) that reflects light and a transparent electrode layer (123) that transmits light, and a transparent liquid crystal panel (20) that controls passage of light emitted from the surface of the organic electroluminescent element 12; and also comprises a half-mirror layer (121) arranged on the side where light is output from this transparent electrode layer (123) and that reflects some of the incoming light through the transparent electrode layer (123) to electrode layer (126) and that transmits the rest of this light; the distance between the half-mirror layer (121) and the electrode layer (126) being set to the optical distance of resonance of this light. <IMAGE>
Patent KR-19990028999-A (KR)
Title: 전자 밸브의 제어 방법 및 제어 장치
IPC: B60T8/50
Filed: 1997-03-15
Abstract: 본 발명은 코일 가동 접편을 구비하는 전자 밸브의 제어 장치 및 제어 방법에 관한 것이다.  이 경우, 접편을 움직이기 위해 코일에 전류 및/또는 전압이 타이밍 제어되어 인가된다.  그리고, 여러 가지 상이한 제어를 행함으로써, 전자 밸브를 선택적으로 개폐 밸브로서 또는 압력 조절 밸브로서 구동시킬 수 있다.
Patent KR-19990044238-A (KR)
IPC: A61K31/42
Filed: 1996-08-13
Abstract: New 3-(heterocyclyl-phenyl)-oxazolidin-2-on-5-yl-methylamide derivatives of formula (I) and their salts are new: X = NR1, S(O)g, or O; R1 = H, 1-6C alkyl (opt. substd. by OH, halo, or cyano), aryl 1-4C alkyl, COR11, COOR12, CO(CH2)hCOR11, 1-6C alkylsulphonyl, aryl 1-4C alkylsulphonyl, Het, or Het-CO; R12 = 1-6C alkyl (opt. substd. by OH, halo, or cyano), (CH2)h-aryl or (CH2)hOR13; R11 = R11 or H; R13 = H, 1-6C alkyl, (CH2)h-aryl or 2-7C alkylcarbonyl; R2 = H, 1-6C alkyl, (CH2)h-aryl or halo; R3, R4 = H or halo; R5 = H, 1-12C alkyl (opt. substd. by \- 1 halo), 3-12C cycloalkyl or 1-6C alkoxy; g = 0-2, h = 1-4; and m, n = 0-5, provided that m + n = 1-5. 85 Cpds. (I) are specifically claimed e.g. (S)-N-[[3-[3-fluoro-4-[1-carboxymethyl-3-(3-methyl)-azetidinyl]phenyl]2-oxo-5-oxazolidinyl]methyl]acetamide; (S)-(-)-N-[[3-[4-[1-(hydroxyacetyl)-4-piperidinyl]-3-fluorophenyl]-2-oxo-5-oxazolidinyl]methyl]acetamide and (S)-(-)-N-[[3-[4-[1-(hydroxyacetyl)-3,6-dihydro-2H-pyridin-4-yl]phenyl]-2-oxo-5-oxazolidinyl]methyl]acetamide.
Patent KR-19990063593-A (KR)
Title: 신규 헤테로고리 화합물
IPC: A61P29/00
Filed: 1996-09-12
Abstract: 화학식 I의 화합물, 
     (화학식 I) 
     
       
     
     (R 1 및 R 2 는 독립적으로 수소, 할로겐, 트리플루오로메틸, 히드록시, C 1-6 -알킬 또는 C 1-6 -알콕시이고; R 3 은 수소 또는 C 1-3 -알킬이고; A는 C 1-3 -알킬렌이고; Y는 > C H-CH 2 -, > C =CH-, > C H-O-, > C =N-, > N -CH 2 -이고, 여기서 밑줄친 원자만이 고리계내에 속해있다)그것들의 제조방법, 그것들을 함유하는 조성물, 그리고, C섬유가 신경성 통증이나 염증을 유도하는 것에 의해 병리생리학적 역할을 수행하는, 통증성, 통각감퇴성 및/또는 염증성 상태의 임상적 치료를 위한, 그것들의 사용.
Patent KR-19990063651-A (KR)
Title: 8-아자바이사이클로[3,2,1]옥트-2-엔 유도체의 제조방법 및 용도
IPC: A61P25/00
Filed: 1996-10-11
Abstract: 본 발명은 구조식(I)의 화합물 또는 그 거울상 이성질체 혼합물 또는 약학적으로 허용가능한 이들의 염에 관한 것이다. 
     
       
     
     식중, R은 수소, 알킬, 알케닐, 알키닐, 사이클로알킬, 사이클로알킬알킬 또는 2-하이드록시에틸이고; 
     R 4 는 
     할로겐, CF 3 , CN, 알콕시, 사이클로알콕시, 알킬, 사이클로알킬, 알케닐, 알키닐, 아미노, 니트로, 헤테로아릴 및 아릴로 구성된 그룹에서 선택되는 치환체로 1회 이상 치환될 수 있는 페닐; 
     3,4-메틸렌디옥시페닐; 
     할로겐, CF 3 , CN, 알콕시, 사이클로알콕시, 알킬, 사이클로알킬, 알케닐, 알키닐, 아미노, 니트로, 헤테로아릴 및 아릴로 구성된 그룹에서 선택되는 치환체로 1회 이상 치환될 수 있는 벤질; 
     할로겐, CF 3 , CN, 알콕시, 사이클로알콕시, 알킬, 사이클로알킬, 알케닐, 알키닐, 아미노, 니트로, 헤테로아릴 및 아릴로 구성된 그룹에서 선택되는 치환체로 1회 이상 치환될 수 있는 헤테로아릴; 또는 
     할로겐, CF 3 , CN, 알콕시, 사이클로알콕시, 알킬, 사이클로알킬, 알케닐, 알키닐, 아미노, 니트로, 헤테로아릴 및 아릴로 구성된 그룹에서 선택되는 치환체로 1회 이상 치환될 수 있는 나프틸임. 
     본 발명의 화합물은 모노아민 신경전달물질 재흡수 억제제로서의 약학적 특성이 우수하다.
Patent KR-19990063832-A (KR)
Title: 광학 디지탈 매체 기록 및 재생 시스템
IPC: G11B7/0025
Filed: 1996-09-27
Abstract: 본 발명은 디지탈 광학 기록을 생성하는 신규의 방법 및 시스템을 제공하고, 상기 방법은 외부 표면(213), 연장 부재(211), 데이터 영역(221), 보조 영역(222), 레이저 빔(302) 및 연장 부재의 표면의 선택 영역상에 레이저 빔을 집속시키는 집속 시스템(317)을 갖는 광학 기록 매체의 마스터링과, 상기 연장 부재의 표면에 평행한 가요성 필름상에 마스터 기록의 고속 복제로 분할될 수 있다.
Patent KR-19990064138-A (KR)
Title: 저 전압 단일 전원 공급 플래시 메모리용 프로그램 알고리즘
IPC: G11C16/02
Filed: 1996-07-19
Abstract: 프로그래밍 회로가 개별적으로 제어 가능한 한세트의 그룹으로 세분되는 플래시 메모리용 프로그래밍 알고리즘이 제공된다. 상기 알고리즘은, 각 그룹에 의해 플래시 셀 어레이내로 프로그램될 논리 0의 수를 검출하고, 플래시 셀 어레이내의 동시 프로그램된 셀의 수가 미리 정해진 수를 초과하지 않고, 최대 이용 가능한 프로그래밍 전류가 프로그래밍 속도를 증진하는 데 이용되도록 그룹중에서 스위치한다.
Patent KR-19990082270-A (KR)
Title: 수지 밀폐형 반도체 장치 및 그의 제조 방법
IPC: H01L23/498
Filed: 1997-12-04
Abstract: 생산효율을 향상할 수 있음과 더불어 리드부 등의 노출부를 확실하게 밀폐할 수 있고 치핑을 방지할 수 있는 반도체 장치이다.  반도체 칩(10)과 반도체 칩(10)의 전극단자(12)의 형성면(10a)측에 접착된 절연부재(20)와 일단 측이 절연부재(20)상에 설치되어서 외부 접속 단자 측에 접속되는 랜드부(32)에 형성되고 타단측이 전극단자(17)에 접속된 리드부(34)에 형성된 배선 패턴(30)과 전극단자(12)에 접속된 리드부(34)에 형성된 배선 패턴(30)과 전극단자의 형상면(10a)과 전극단자의 형성면(10a) 및 리드부(34)상을 덮는 동시에 반도체 칩(10)의 외연 근처를 덮듯이 외형이 반도체 칩(10)보다 크게 형성된 커버 부재(52)와의 간극에 충전·경화되어 설치되고 전극단자의 형성면(10a), 리드부(34) 및 반도체 칩(10)의 측면을 밀폐하는 수지 밀폐부(50)를 구비한다.
Patent KR-19990082470-A (KR)
Title: 컴퓨터 버스 상의 공유 자원에 대한 신속한 액세스
IPC: G06T1/60
Filed: 1996-07-18
Abstract: 공유 자원(13)에 의해 사용되는 버스(12)에 대한 액세스를 가지는 다수의 제어장치들(25 및 26) 사이에서 공유 자원(13)에 대한 액세스 제어의 전송 속도를 가속화하는 것은 버스 제어장치(25 및 26)에 의한 액세스 요구를 검출하는 것을 포함한다.  버스(12)가 사용 중이 아닌 경우에는 버스 제어장치(25 또는 26)에 의한 액세스 요구를 검출한 즉시 고속 버스 전송 시퀀스를 시작하며, 버스(12)가 사용 중인 경우에는 버스(12)의 사용이 완료되면 저속 버스 전송을 시작한다.
Patent KR-20000051605-A (KR)
Inventor: LIM KEUN JO
IPC: C07D221/00
Filed: 1999-01-23
Abstract: PURPOSE: A process for preparing benzimidazole derivatives by forming a sulfur-carbon bond without using an organic or inorganic base is provided which prepares the title compounds in a simple manner and in a high yield. CONSTITUTION: Pyridylmethyl (or benzyl) thio-1H-benzimidazole derivatives and its salts of the general formula 1 used as a precursor of pyridylmethyl (or benzyl) sulfinyl-1H-benzimidazole derivatives having gastric acid secretion inhibiting effects are prepared by reacting a compound of formula 11 and a compound of formula 12 and then recrystallizing. The process suppresses the formation of side-products and produces the title compound in a high yield in a simple manner.
Patent KR-19990072346-A (KR)
Title: 가스방전형표시패널및가스방전형표시장치
IPC: H01J9/24
Filed: 1999-02-01
Abstract: 본 발명의 목적은 가스방전형 표시패널(gas discharge display panel) 및 가스방전형 표시장치(gas discharge display device)의 바람직한 구조를 제공함으로써 배선 형성을 위한 레이저 가공시간을 단축시키는 것이다. 
     상기 목적을 달성하기 위하여, 본 발명은 레이저 가공에 의하여 거의 직사각형으로 형성된 복수의 제 1 전극과 제 1 전극상에 형성된 복수의 제 2 전극을 가지는 제 1 기판과, 복수의 제 3 전극을 가지며 제 1 기판과 마주보는 제 2 기판이 제공된 가스방전형 표시패널을 형성한다.
Patent KR-19990037870-A (KR)
Title: 폐자동차파쇄물의연료화방법
IPC: C10L5/48
Filed: 1999-02-08
Abstract: 본 발명은 폐자동차 파쇄물의 연료화 방법에 관한 것으로서, 폐자동차 파쇄물 중에서 철질금속물, 비철금속물, 및 Na 2 O 또는 Cl 등을 주성분으로 하는 파쇄물을 순차적으로 제거하여 파쇄물이 60 내지 100 중량%의 가연성 물질을 함유하도록 한 후, 이 파쇄물을 크기가 50cm 이하가 되도록 압축 또는 절단하여 시멘트 공장, 제철 공장, 폐열 보일러 등 각종 산업체에 연료로 사용함으로써 연료비를 절감하고 폐자동차 처리 과정에서 발생할 수 있는 환경오염 문제를 해결할 수 있다.
Patent KR-20000055812-A (KR)
Inventor: KIM JEA DUCK
IPC: B62D5/00
Filed: 1999-02-10
Abstract: PURPOSE: A device of an electromotive power steering for a car is provided to perform separately a female screw part manufacturing and a rotter assembling progress by separating a female screw part from a motor shaft, and to transmit immediately power on changing the right and opposite rotation by connecting a female screw part with a spline for reducing play to the minimum. CONSTITUTION: A device of an electromotive power steering for a car comprises : a rack bar(1) to be equipped in a rack bar housing(4), to move from side to side, and to form a male screw part(11) on one side ; a motor shaft(2) to be inserted into the outside of a rack bar(1) ; a motor(3) to include a rotator of magnet(31) fixed on the outside of a rack bar(1), a stator of coil(32) equipped in a motor housing(6), a magnet(34) rolled on one side of a motor shaft(2), and a hole sensor(33) fixed on a plate(36) of a rear bracket(35) ; a spline shaft part(22) to be equipped on the tip of a motor shaft(2) ; a nut(7) to include a spline groove part(71) and to be connected with a supporting bearing(8).