baber/WOPTO huggingface dataset:
Patent KR-20040058648-A (KR)
Title: Variable exhaust muffler of a vehicle
Inventor: SEO CHUNG GYU
IPC: F01N1/16
Filed: 2002-12-27
Abstract: PURPOSE: A variable muffler for a vehicle is provided to minimize exhaust noise within the entire range from low frequency to high frequency by regulating the opening degree of the connection tube through the variable exhaust unit according to exhaust pressure from the combustion chamber of the engine, and to improve exhaust performance by controlling exhaust pressure optimally. CONSTITUTION: A variable muffler for a vehicle regulates exhaust pressure by varying the flow passage of exhaust gas from a combustion chamber of an engine, and comprises a housing(9) connected to front and rear exhaust pipes(5,7) and composed of a hollow part divided into a multistage exhaust chamber(13) by two partition walls(11); a connection tube(3) installed in the housing by the partition wall and connected to the multistage exhaust chamber; and a variable exhaust unit installed in the end of the connection tube and operated by regulating the opening degree variably according to exhaust pressure.
Patent KR-20040059703-A (KR)
Title: Device for Magnifying Scanning Image in Review Monitor
Inventor: PARK SEONG DEOK
IPC: G02F1/13
Filed: 2002-12-28
Abstract: PURPOSE: A pattern checking apparatus is provided to check clearly and minutely patterned array devices formed on a substrate, thereby enhancing productivity and reducing inferior goods. CONSTITUTION: A table(104) fixes a substrate(102) formed thin film patterns and moves up and down, and right and left by a stage controller. A chamber(110) having several optical systems is positioned at an upper portion of the substrate(102). An object lens(106) capable of magnifying the thin film patterns is formed at the inside of the chamber(110). The projected image by the object lens(106) is reflected by the first mirror(M1) formed at an upper portion of the object lens(106) and then transmitted to the second mirror(M2). The image transmitted to the second mirror(M2) is transmitted to the fourth mirror(M4) through the third mirror(M3). The thin film pattern image of the substrate projected by the first, second, third and fourth mirrors(M1,M2,M3,M4) is transmitted to a CCD(Charge Coupled Device) camera(108).
Patent KR-20040059721-A (KR)
Title: A Structure For Supporting Mask Box Of Photo Mask
Inventor: CHOI SEONG JIN
IPC: H01L21/027
Filed: 2002-12-28
Abstract: PURPOSE: A box support structure of a photomask is provided to prevent damage on a mask by supporting edge portions of the photomask using an upper and lower sloped plane. CONSTITUTION: A mask box(20) includes an upper box part(22) and a lower box part(30). The mask box further includes a lower support protrusion(32) and an upper support protrusion(24). The lower support protrusion is provided with a lower sloped plane(34) for supporting four edge portions of the lower box part. The upper support protrusion is provided with an upper sloped plane(26) for supporting four edge portions of the upper box part.
Patent KR-20040061930-A (KR)
Title: Tape loading device for tape recorder
Inventor: CHO YEONG HO
IPC: G11B15/665
Filed: 2002-12-31
Abstract: PURPOSE: A tape loading device of a tape recorder is provided to eject a magnetic tape from a tape cassette when the magnetic tape is loaded, and to contact the magnetic tape with a head drum, thereby stably guiding a movement of a pole base assembly even though the first and second guide rails have different thickness. CONSTITUTION: A main chassis(310) functions as a bottom surface of a moving deck(300). A head drum(130) is installed on an upper side of the main chassis(310) in order that the head drum can rotate. A sub chassis(320) slides down on an upper side of the main chassis(310), and goes/returns in a direction for accessing/separating from the head drum(130) on the main chassis(310) when loading/unloading a magnetic tape. A pole base assembly(360) ejects the magnetic tape to contact the tape with the head drum(130), moves on the moving deck(300), and guides the magnetic tape while the tape is contacted with the head drum(130). The first and second guide rails(381,385) guide the pole base assembly(360). A thickness compensation unit removes an end caused by a thickness difference between the guide rails(381,385), and smooths a mobile path.
Patent KR-20040061991-A (KR)
Title: a liquid crystal display device featuring a layered structure under a seal pattern
Inventor: KIM HYE YEONG
IPC: G02F1/1339
Filed: 2002-12-31
Abstract: PURPOSE: An LCD(liquid crystal display) having a layer structure under a seal pattern is provided to increase the contact area of the seal pattern and a lower substrate to prevent sealing of an LCD panel from being broken. CONSTITUTION: An LCD includes the first and second substrates(10,50) opposite to each other, a seal pattern(60), an organic insulating layer(30), and the first and second inorganic insulating layers(40,20). The seal pattern is formed on one of the first and second substrates along the edge of the substrate. The first inorganic insulating layer is formed on the first substrate in contact with the bottom of the seal pattern. The organic insulating layer is formed under the first inorganic insulating layer. The second inorganic insulating layer is formed beneath the organic insulating layer.
Patent KR-20040062061-A (KR)
Title: Insulation structure of wave guide for electrodeless lighting system
Inventor: CHOI JIN YEONG
IPC: H01J65/04
Filed: 2002-12-31
Abstract: PURPOSE: An insulating structure is provided to prevent damages of magnetron by preventing microwaves from being reflected to an oscillation unit due to an unbalance of impedance matching. CONSTITUTION: A waveguide(4) comprises an inlet(4f) for insertion of a microwave generating unit of a magnetron(2); a space(4c) for guiding the microwave oscillated by the microwave generating unit; an outlet(4h) coupled with a resonator in such a manner that the guide microwave is excited and the material encapsulated in the bulb emits light; and an insulating layer(20) for insulation of the inner circumference of the inlet so as to prevent damages of magnetron and resonator caused due to the concentration of microwave reflected by an unbalance of impedance matching of the resonator.
Patent KR-20020024320-A (KR)
Title: Process for producing 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid and its trihydrated monosodium salt
IPC: G11B9/00
Filed: 2000-07-17
Abstract: The invention relates to a process for the preparation of 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid and of the trihydrated monosodium salt thereof, consisting of reacting 4-aminobutyric acid with a phosphonation mixture formed by phosphorous acid and methanesulfonic anhydride and thereafter hydrolyzing the product of said reaction and isolating the products by adjustment of the pH.
Patent KR-20020037370-A (KR)
IPC: C08K3/26
Filed: 2000-10-12
Abstract: 입자형상이 불특정 다면체 형상이고, 입도 및 입도 분포를 제어한 중질 탄산 칼슘으로 이루어지는 광택 제거용 열가소성 수지 첨가제 및 이를 배합하여 이루어지는 열가소성 수지 조성물을 제공한다. 본 발명의 광택 제거용 열가소성 수지 첨가제를 배합한 열가소성 수지 조성물은, 광택 제거성, 현란함 방지성 및 전광선 투과성이 우수하고, 조명 커버·조명간판·각종 디스플레이·글루징·싸인등의 분야에 유용하다.
Patent KR-20020041455-A (KR)
IPC: G11B7/0045
Filed: 2000-10-13
Abstract: 본 발명은 기록에 제공하는 데이터에 따라서 레이져빔의 조사파워를 다단계로 전환하여 광기록매체에 조사하고, 조사파워에 대응하는 기록마크를 형성하여 상기 데이터를 멀티레벨 기록하는 광기록매체, 광기록방법 및 광기록재생방법에 관한 것으로서, 광기록매체(10)의 기록층(12)에는 그루브(16) 내에 있어서 가상기록셀(40)이 상정되고, 이 가상기록셀(40)마다 기록해야하는 정보에 대응하여 레이져빔의 조사파워를 5단계 이상으로 변조함으로써 5단계 이상의 다른 크기 및/또는 광투과율의 기록마크(48A~48G)를 형성하고, 각 가상기록셀(40) 전체에서의 광반사율을 다단계로 변조하고, 재생시의 판독 레이져빔의 기록마크의 외측을 포함하는 가상기록셀(40) 전체의 반사레벨을 5단계 이상으로 변화시키는 것을 특징으로 한다.
Patent KR-20020065531-A (KR)
Title: Visual aid in the form of telescopic spectacles with an automatic focussing device
IPC: G02B27/02
Filed: 2000-11-23
Abstract: A vision aid in the form of telescopic spectacles has two lens systems, which each comprise at least one objective lens ( 70 ) and one eyepiece ( 71 ). An autofocussing element which changes the focal length of the lens systems for sharp focussing thereof according to the distance of the telescopic spectacle from the object is assigned to the lens systems. Furthermore, an element for changing the magnification factor by changing the focal length of the lens systems ("zoom") and finally an element for matching the parallax between the lens systems of the vision aid to the focal length which has been set according to the distance of the telescopic spectacles from the object are assigned to the lens systems. The parallax is adapted using adjustable optical elements ( 11 ) which are located in the beam path of the lens systems, with which elements the angle ( 13 ) between the beam paths ( 14 ) running from the lens systems ( 1 ) to the object can be changed.
Patent KR-20020063212-A (KR)
Title: Continuous Process for the Preparation of Polytrimethylene Ether Glycol
IPC: B01J8/04
Filed: 2000-12-15
Abstract: The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an up-flow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
Patent KR-20020080402-A (KR)
Title: 래스터 발생기, 인코더 및 래스터 발생 방법
IPC: H04N5/46
Filed: 2001-11-30
Abstract: 래스터 발생기는 라인 디스크립터의 리스트를 나열하여 스크린 래스터를 발생시킨다.  라인 디스크립터(410)는 라인-카운트 파라미터(412)와 라인-유형 파라미터(411)를 포함한다.  라인-유형 파라미터는 래스터 라인의 각 유형의 특성을 정의하고, 라인-카운트 파라미터는 전체 비디오 또는 영상 프레임을 정의하는 라인들의 시퀀스에서 발생하는 해당 유형의 라인 수를 정의한다.  효율적인 인코딩을 위해, 래스터 라인의 각 유형의 특성이 래스터 패턴 유형의 리스트(420)(P1, P2, -, PK)로 정의되고, 이 때 각각의 래스터 패턴 유형은 특정 래스터 값(V)의 특정 지속기간(D)의 시퀀스로 정의된다.  래스터 발생기는 라인 디스크립터 리스트(410), 래스터 패턴 리스트(420) 및 지속값 쌍 리스트(list of duration-value pairs)(430)을 차례로 포개는 방식(in a nested fashion)으로 나열함(LS, PS, RS)으로써, 스크린 래스터 패턴을 각 프레임의 각 라인 내에서 특정 기간 동안에 발생하는 개별 래스터 값의 시퀀스로서 발생시킨다.  바람직한 실시예에서, 래스터 발생기는 래스터를 정의하는 파라미터들의 각각을 담고 있는 프로그램 가능 메모리를 포함한다.
Patent KR-20020093808-A (KR)
Title: 뼈 형성의 조절
IPC: A61K45/00
Filed: 2001-02-15
Abstract: PPARγ이외의 퍼옥시좀 증식-활성 리셉터(PPAR's; peroxisome proliferator-activated receptors)의 활성제 또는 리간드, 또는 상기 활성제 또는 리간드의 약제학적으로 허용가능한 유도체를, 뼈 질환의 치료 및 예방을 위한 약제를 제조하는 데에 사용하는 용도는, 우선, 증대된 뼈 침탁으로부터 얻을 수 있는 상태에서 뼈의 침착을 증대할 수 있는 뼈 동화작용을 하도록 한다.  뼈 침착의 완화 및 저해가 있는 곳에서는 그 반대작용도 촉진된다.
Patent KR-20030011799-A (KR)
IPC: B01J19/00
Filed: 2002-01-23
Abstract: 목적으로 하는 반응 온도 및 반응 압력의 상태에 있는 고온·고압수를 포함하는 유체를 수용하고, 상기 유체에 의해 피반응물 R을 반응 처리하는 반응기(31)와, 반응기(31)에 접속되어, 피반응물 R을 반응기(31)에 공급하는 제 1 배관(25)과, 반응기(31)측으로부터 제 1 배관(25)측으로의, 유체, 피반응물 및 반응 생성물 중 어느 것의 유출을 방지하도록, 제 1 배관(25)과 반응기(31)와의 사이를 막는 제 1 칸막이 수단(50)을 갖는다.  제 1 칸막이 수단(50)은, 예를 들면, 밸브(51)와, 축(52)과, 추(53)와, 지지부재(54)와, 배관(55)으로 구성되어 있고, 통상은, 추(53)에 의해서 밸브(51)는, 배관(55)의 하단의 개구를 폐쇄하고 있다.  즉, 배관(25)과 반응기(31)와의 내부를 격리하고 있다.  이 때, 밸브(51)는 반응기(31)내를 완전히는 밀봉할 수 없지만, 반응기(31) 중의 열수가 그 대류에 의해 배관(25)에 다량으로 누출시키는 것을 방지하는 작용을 가지고 있다.
Patent KR-20020093883-A (KR)
Title: 액체 수소 성층권 항공기
IPC: B64C39/10
Filed: 2001-04-03
Abstract: 가리지 않는 하방 조망으로 통신기관 플랫폼을 지지하면서 연장된 기간동안 저수준의 동력을 소비하며 광범위한 비행 속도를 가지도록 구성된 항공기가 개시된다.  항공기는 날개의 전연과 리플렉스된 후연에서 연장가능한 슬랫을 포함한다.  항공기는 두 단부와 중심점 사이에서 횡방향으로 연장하는 비행하는 날개를 포함한다.  날개는 스윕되어 있으며 상대적으로 일정한 익현을 가진다.  항공기는 또한 연료 전지를 경유하여 동력을 제공하도록 구성된 동력 모듈을 포함한다.  항공기는 또한 연료전지를 거쳐 동력을 제공하도록 구성된 동력 모듈을 포함한다.  연료전지는 연료로서 액체 수소를 저장하나 연료전지에서 가스상의 수소를 사용한다.  연료탱크 히터는 연료 탱크에서 연료의 비등을 제어하기 위하여 사용된다.  본 발명의 항공기는 날개에 고정되는 4면체를 형성하는 복수의 지지대를 포함하는 지지대 구조를 포함한다.
Patent KR-20020097246-A (KR)
IPC: C12Q1/68
Filed: 2002-02-27
Abstract: L-리보오스로부터 L-리불로오스로의 이성화 반응 및 L-리불로오스로부터 L-리보오스로의 이성화 반응을 촉매하는 L-리보오스 이소메라아제를 코드하는 DNA와, 이 DNA를 사용하는 재조합 DNA 기술에 의한 폴리펩티드의 제조방법을 제공함으로써 해결한다.
Patent KR-20030031484-A (KR)
IPC: C07D249/14
Filed: 2001-06-05
Abstract: 본 발명은 용매의 부재하에 구조식 (II)의 5-아미노-3-클로로설포닐-1,2,4-트리아졸을 일반식 (III)의 치환된 아닐린과 반응시키는 것을 특징으로 하여 일반식 (I)의 치환된 5-아미노-N-페닐-1,2,4-트리아졸-3-설폰아미드를 제조하는 방법을 제공한다: 
     
       
     
     
       
     
     
       
     
     상기 식에서, 
     X는 할로겐(특히 불소, 염소 또는 브롬), 시아노 또는 니트로이고, 
     R은 수소 또는 임의로 할로겐-치환된 C 1 -C 4 -알킬이며, 
     n은 1 또는 2 이다.
Patent KR-20030007715-A (KR)
IPC: H01L33/32
Filed: 2002-03-27
Abstract: 신뢰성이 높고, 또한 소자 설계 및 제작의 자유도가 큰 구성을 구비한 질화물 반도체 소자를 제공한다. 사파이어 기판(10) 상에 형성되어, 마스크(l2)를 한쪽 측면에 갖는 종 결정부(l1)와, 사파이어 기판(10) 상 및 종 결정부(11) 상에 가로 방향 성장법에 의해 성장시킨 GaN층(15)으로 구성되어 있다. GaN층(15)은 종 결정부(11)의 마스크(12)로 덮여 있지 않은 노출된 측면에서만 성장하기 때문에, 그 가로 방향 성장이 비대칭으로 진행한다. 그것에 의해, 회합부(32)는 종 결정부(11)와 마스크(12)와의 경계 부근에서 GaN층(l5)의 두께 방향으로 형성된다. 따라서, 회합부(32)가 이웃하는 종 결정부(11)간의 중심에서 기판 표면에 평행한 방향의 편심된 위치에 형성되어 있기 때문에, 종래의 구조에 비하여, 가로 방향 성장 영역의 폭(W L )이 종 결정부(11)의 피치(W p )에 대하여 넓어진다.
Patent KR-20030007889-A (KR)
IPC: A61P17/02
Filed: 2001-06-13
Abstract: 본 발명은 포유 동물에서 혈장내 성장 호르몬 농도를 상승시키는 것은 물론, 성장 호르몬 분비 결핍, 어린이의 발육 부진 및 성장 호르몬 분비 결핍과 관련된 대사장애를 치료하는데 유요한 화학식 (I)의 화합물에 관한 것이다.
Patent KR-20030040225-A (KR)
Title: Coumarin derivatives with COMT inhibiting activity
IPC: C07D311/06
Filed: 2001-06-28
Abstract: Compounds of formula I' wherein the two -OH substituents in the phenyl moiety are in a position ortho to one another and R<SUB>1 </SUB>in a position ortho to one of the hydroxy groups; and X, R<SUB>1 </SUB>to R<SUB>6 </SUB>are as defined in disclosure. The compounds exhibit COMT enzyme inhibiting activity, so are useful as COMT inhibitors.
Patent KR-20040064317-A (KR)
Inventor: AN KYE YOUNG
IPC: H02J9/00
Filed: 2003-01-10
Abstract: PURPOSE: An UPS(Uninterruptible Power Supply) system and a controlling method thereof are provided to minimize the economical loss due to the power failure by supplying the power without interruption. CONSTITUTION: An UPS system includes a bypass circuit. The bypass circuit is formed with a circuit breaker and an exchangeable circuit breaker. The circuit breaker(20) is installed in an inside of a cubicle case(10). The exchangeable circuit breaker(50) is installed around the cubicle case. The exchangeable circuit breaker is formed with a coupled of switches(40,41) and a couple of bypass jumpers(30,31). The UPS system further includes a parallel transformer. The parallel transformer is installed in parallel to a rear end of the circuit breaker.
Patent KR-20040064561-A (KR)
Title: Bicycle made of special composite material
Inventor: SON YOUNG SUK
IPC: B62K19/02
Filed: 2003-01-13
Abstract: PURPOSE: A bicycle made of gold, silver, copper, ferrite, inorganic material, bismuth, non ferrite material, etc is provided to improve strength and prevent rust. CONSTITUTION: A bicycle(1) is made of a gold, silver, copper, ferrite, inorganic material, bismuth, non ferrite material, special alloy material, glasses, seashell, jade, ceramic, and germanium. Then the bicycle is inputted to furnace(1'), and heated in 1539 centigrade degrees with cokes. Then the bicycle is casted. The bicycle is heated in a first heater in 500-1500 centigrade degrees for 5 hours. The bicycle is annealed in an annealing processor in 400-1400 centigrade degrees for 3 hours.
Patent KR-20040067564-A (KR)
Inventor: CHOI WAN SIK
IPC: G03F7/039
Filed: 2003-01-24
Abstract: PURPOSE: Provided is an organic ultrathin film having a uniform surface with a thickness of several millimeters, useful for manufacturing micropatterns in electronic devices, panel display devices, bio-devices, etc. CONSTITUTION: The organic ultrathin film for lithography has a thickness of 1-3 nm and a surface roughness of 2-5 angstroms as determined by Atomic Force Microscopy, and is formed by coating on a solid substrate, a solution containing an organic compound selected from the group consisting of an organic sulfonate represented by formula 1, an azo compound represented by formula 2 or a metal complex salt thereof, and an organic polymer represented by formula 3. In formula 1, X is Ph-H, Ph-OH, Ph-OCH3, Ph-(CH2)nCH3, Ph-NO2, Ph-OPh, Ph-Hal, Ph-SCH3, Ph-O-Ph, Ph-OCH2COO-CH3, Ph-SPh, Ph-SCH3 or Ph-SOCH3; n is 0 or an integer of 1-20; and m is 0 or an integer of 1-10. In formula 2, each of R1 and R2 is the same or different and represents a phenyl, naphthyl, benzothiazole, benzimidazole or benzoic acid group. In formula 3, each of R3-R8 is the same or different and represents H, a C1-C5 alkyl or a C1-C5 hydroxyalkyl; p+q+r=1; p ranges from 0.1 to 0.9; q ranges from 0.05 to 0.8; r ranges from 0.05 to 0.5; and the weight average molecular weight is 5,000-100,000.
Patent KR-20040068824-A (KR)
Inventor: CHO YEONG MIN
IPC: C02F3/10
Filed: 2003-01-27
Abstract: PURPOSE: Provided is a method for preparing a microorganism carrier of a fluidized bed reactor by using waste slag and waste coal fly ash by which provided porous ceramic carrier has good adhesive capacity of microorganisms, enough mechanical strength and large specific surface area. CONSTITUTION: The method comprises steps of (a) mixing a raw material composition consisting of 40 parts by weight of blast-furnace slag and 25 parts by weight of coal, 5 parts by weight of loess, 5 parts by weight of silica stone, 10 parts by weight of bentonite, 10 parts by weight of bentonite and 0.05-0.07 parts by weight of plasticizer; (b) pulverizing the mixture of the step (a) by a ball mill to prepare a ceramic material; (c) molding the ceramic material by using a stainless pelletizer into a spherical shape and drying it; and (d) sintering the molded carrier at a temperature of 1,150-1,200 °C.
Patent KR-20040069433-A (KR)
Inventor: NA BUM JU
IPC: A61H23/00
Filed: 2003-01-29
Abstract: PURPOSE: A portable backbone straightening machine is provided to reduce manufacturing cost remarkably owing to the small amount of elements and a simple structure and to adopt in a case of having more than two heads because of being able to obtain sufficient shock power by adjusting strength of spring. CONSTITUTION: The portable backbone straightening machine includes: a hollow type end cap(10) which can open one end thereof and has a thread(73) therein; a body(40) which is connected to the thread(73) of the end cap(10) in one end thereof by a screw, has a penetration hole therein, and has a bridging jaw formed by being projected; a stroke member which is allowed at the upper part of the bridging jaw and has a slide hole therein; a first spring(20) which is supported on the end cap(10) in one end thereof and supported on the stroke member(30) in the other end; a compression and release unit which is shocked by the stroke member(30); and a transfer unit(70) which is connected to the other end of the body(40) to be possibly slid and transfers a stroke power received from the stroke member(30).
Patent KR-20040073005-A (KR)
Title: Spare tire carrier device
Inventor: JUNG DAL HUI
IPC: B62D43/04
Filed: 2003-02-12
Abstract: PURPOSE: A spare tire carrier device is provided to improve convenience of work and safety by installing the spare tire carrier device to the lower side of a vehicle and removing and mounting a spare tire from/to a carrier through consumption of predetermined force. CONSTITUTION: A spare tire carrier device comprises a bracket(2) fixing a spare tire(1) situated between a vehicle body and the ground; a left arm(3) one side of which is rotatably combined to the left side of the bracket and the other side is rotatably combined to the vehicle body; a right arm(4) one side of which is rotatably combined to the right side of the bracket and the other side is rotatably combined to the vehicle body; a central arm(5) one side of which is rotatably combined to the bracket between the left arm and the right arm and the other side is rotatably combined to the vehicle body; and a fixing/rotating unit installed to the other side of the left arm or the right arm, to fix or rotate the spare tire. The left arm, the right arm, and the central arm each rotate around parts hingably combined with the vehicle body.
Patent KR-20040076112-A (KR)
Inventor: JANG I SEOP
IPC: A61K8/49
Filed: 2003-02-24
Abstract: PURPOSE: A skin whitening composition for external application containing hydroxy pyranone derivatives having inhibitory activities against tyrosinase and skin whitening efficacy is provided. It is effective in inhibiting the formation of unwanted skin pigmentation. CONSTITUTION: The skin whitening composition for external application contains hydroxy pyranone derivatives represented by the formula 1. In formula, R1 is -CH2- or -CH2CH2-, R2 is -C(O)OCH2-, -CH=CHC(O)OCH2- or -CH=CH-. The hydroxy pyranone derivatives are characterized in that it inhibits tyrosinase activity or melanin formation. For an example, 50g 5-hydroxy-2-(hydroxymethyl)-4H-pyrane-4-one is melted in 250ml N,N-dimethylformamide and added with 50ml thionyl chloride after cooling. It is agitated for 2hr at room temperature, filtered and melted in 1,000ml ethyl acetate to produce 39.5g 5-hydroxy-2-(chloromethyl)-4H-pyrane-4-one(70%).
Patent KR-20040078293-A (KR)
Inventor: CHO SEONG PIL
IPC: H01L21/76
Filed: 2003-03-03
Abstract: PURPOSE: A method for forming an isolation layer of a semiconductor device is provided to prevent damage of a corner generated from a dry-etch process by maintaining smoothly an angle of an active corner. CONSTITUTION: A pad oxide layer is deposited on a silicon substrate(100) in order to buffer the stress. A pad nitride layer is deposited thereon. A photoresist is coated on the pad nitride layer. The photoresist is patterned by performing an etch process. The pad nitride layer is patterned by performing a dry-etch process. A trench is formed by etching the silicon substrate. The photoresist pattern is removed therefrom. A gap-fill oxide layer(104) is formed to bury the trench. A planarization process is performed. The residual pad nitride layer is removed therefrom. A silicon layer is grown on the silicon substrate by using SiH4 gas.
Patent KR-20030080197-A (KR)
Title: 복합재
IPC: G02B1/10
Filed: 2003-03-05
Abstract: 기재 표면에 적절한 기능을 가지는 기저층을 형성하고, 이 기저층 위에 광촉매층을 적층한 구조를 가지는 복합재에 있어서, 기저층이 존재함으로써 발생하는 막 내구성의 저하를 방지하는데 그 목적이 있다. 
     투명글라스 기판(12)의 한 쪽면에, 기저층(14), 광촉매층(16), 친수층(18)을 순서대로 적층한다. 기저층(14)은 나트륨확산 억제층을 구성하는 것으로서, SiO 2 , Al 2 O 3 등의 무기산화물과 La 2 O 3 , Pr 2 O 3 , CeO 2 등의 산화 란탄족의 혼합물 또는 그것들의 복(複)산화물, 또는 Ta 2 O 5 또는 ZrO 2 로 구성한다. 광촉매층(16)은 예를 들어, 광촉매 TiO 2 로 구성한다. 친수층(18)은 다공질 SiO 2 로 구성한다.
Patent KR-20030078648-A (KR)
Title: 컬러필터 검사장치
IPC: G02F1/13
Filed: 2003-03-10
Abstract: 컬러필터 검사장치(1)에 있어서, 가이드레일(23)에 따라 이동하는 컬러필터(9)를 상방으로부터 라인센서(130)로 촬상(撮像)하는 촬상부(13), 및 컬러필터(9)의 하방으로부터 조명광을 조사(照射)하는 형광램프(14)를 설치, 촬상부(13)에 소정의 파장대(波長帶) 영역의 빛을 투과하는 광학필터(131)를 설치한다. 광학필터(131)의 투과 파장대 영역은, 컬러필터(9)의 하나의 색성분 필터의 투과율이 높고, 다른 색성분 필터의 투과율이 낮은 파장대 영역으로 된다, 이에 따라, 하나의 색성분에 관하여 컬러필터(9) 색의 얼룩을 정밀도 좋게 검사하는 것이 실현된다.
Patent KR-20040080697-A (KR)
Inventor: KIM SEONG UK
IPC: H01L27/108
Filed: 2003-03-13
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to reduce coupling noise between adjacent bit lines by reducing the height of the bit line using copper as the bit line of MPDL(Merged Planar DRAM and Logic). CONSTITUTION: A semiconductor substrate(10) including memory cells with MOS transistors on a cell region and logic transistors on a logic region is prepared. The first insulating layer(28) is formed on the resultant structure. By patterning the first insulating layer, a bit line contact hole, a bit line trench and a lower electrode trench are formed. By depositing a metal film made of copper, a bit line plug(38) and a bit line(34) are formed on the cell region and a lower electrode(36) of a capacitor is simultaneously formed on the logic region.
Patent KR-20030077990-A (KR)
IPC: H01M8/12
Filed: 2003-03-24
Abstract: Solid oxide fuel cell comprising a chemically etched metallic sheet having controlled patterns of cavities (3) on one surface (1) of the metallic sheet and perforations (2) on opposite surface of the metallic sheet, and electrochemically active segments (4) deposited on the perforated surface of the metallic sheet characterised in that the perforations (2) on the one surface are etched with a diameter smaller than the diameter of the holes on the opposite surface.