baber/WOPTO huggingface dataset:
Patent KR-20030050991-A (KR)
Title: Escorted browsing service method and system on firewall
Inventor: BOK HYE YEONG
IPC: G06Q99/00
Filed: 2001-12-20
Abstract: PURPOSE: A method for an escorted browsing service in a fire wall environment and a system thereof are provided to supply an integrated consultation service to a client terminal connected to a private network in a fire wall environment using a relay server. CONSTITUTION: A web server(31) receives information of a client terminal(10), connected for receiving a service and receives information of a relay server(32), and a counselor terminal(50)(S110,S120). An escorted browsing manager server(34) receives, registers, and manages information of the client terminal(10) and information of the relay server(32) from the web server(31). The web server(31) transmits relay server information to the client terminal(10)(S130,S140). If a CTI(Computer Telephone Integration) server(33) receives a connection request with the client terminal(10) from the web server(31), the CTI server(33) is connected to the client terminal(10)(S150). After connecting the CTI server(33) to the counselor terminal(50), information of the client terminal(10) is transmitted to the counselor terminal(50)(S160). The client telephones to the counselor. The client terminal(10) is connected to the relay server(32) in accordance with a TCP/IP(S170). The counselor terminal(50) requests and receives information of the relay server(32) registered in the escorted browsing manager server(34) using information obtained from the telephone call, and supplies a consultation service integrated with the received information(S180,S190).
Patent KR-20030052053-A (KR)
Inventor: CHOI GI SEOK
IPC: G02F1/1339
Filed: 2001-12-20
Abstract: PURPOSE: A liquid crystal display device is provided to prevent a spotted image by improving gravity inferiority due to a difference in volume expansion rate, and improve pushed spots by dispersing pressure due to substrate bond. CONSTITUTION: A first substrate is defined by a plurality of pixels and each pixel has a thin film transistor(121) and a pixel electrode(122). A second substrate is opposite to the first substrate and has a color filter layer. A plurality of column spacers(116) are formed on either the first substrate or the second substrate, having dot patterns. A liquid crystal layer is formed between the first substrate and the second substrate. Liquid crystal is filled between the dot patterns of the column spacers, so that a difference in volume expansion rate according to a change of a temperature is compensated between a part where the column spacers are formed and a part where the liquid crystal layer is formed.
Patent KR-20030053366-A (KR)
Title: Method For Manufacturing Semiconductor Devices
Inventor: KIM SU GON
IPC: H01L21/3065
Filed: 2001-12-22
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to improve reliability such as precision and stability of an etch process and the etch uniformity regarding the front surface of a wafer by controlling an etch end point of an etch target layer. CONSTITUTION: An underlying layer(11), an etch control layer(13) and the etch target layer(15) are formed on a semiconductor substrate(10). A photoresist layer pattern is formed on a predetermined portion of the etch target layer. The etch target layer is etched through a dry etch process using the photoresist layer pattern as a mask to expose the etch control layer. A passivation layer(19) is formed on the exposed etch control layer.
Patent KR-20030056132-A (KR)
Title: Card sales slip issuing apparatus having a for wireless communication device
Inventor: LEE SOON
IPC: G06K17/00
Filed: 2001-12-27
Abstract: PURPOSE: A card processing terminal is provided to transmit a card transaction approval request to a server of a card company via a wired communication network when a strength of a wireless signal, transmitted from a base station, is lower than a reference value. CONSTITUTION: The terminal comprises a central control circuit(32), an input device(30), a card reader(36), an output device(28), a display(46), a wired communication device(50) and a wireless data transceiver(52). The central control circuit(32), including a processor and a memory, controls components of the terminal, performs a necessary operation and drives the driver of the input device(30) and the output device(28). The card reader(36) includes a magnetic card reader and an IC card reader for reading the data stored at a magnetic stripe of the magnetic card and the IC of the IC card, respectively. The input device(30) includes a conventional keypad, the output device(28) is an LCD(Liquid Crystal Display) panel, and the output device is a printer for printing data on a card transaction slip. The wired communication device(50) is for transmitting or receiving data over a PSTN(Public Switching Telephone Network) or a leased line and the wireless data transceiver(52) is for transmitting or receiving data over a wireless data communication network.
Patent KR-20030058172-A (KR)
Inventor: KWON HO GYEONG
IPC: H03K17/00
Filed: 2001-12-29
Abstract: PURPOSE: A reset signal protection circuit is provided to stabilize a reset signal using a digital delay device to increase noise immunity of a system. CONSTITUTION: A schmitt trigger buffer(10) schmitt-triggers a reset signal being output from a reset port of a reset circuit and then outputs a digital signal having a fixed time length. A reset sampler(20) samples a signal being output from the schmitt trigger buffer by synchronizing it to an external clock and multiplies two signals delayed with different time interval each other. And a reset signal generator(30) outputs the reset signal as high by being synchronized to the signal being output from the schmitt trigger buffer and down-counts an initial value set by a dip switch, and outputs the reset signal as low when the result of the down counting becomes 0.
Patent KR-20010080066-A (KR)
Title: Selective oxidation process and catalyst therefor
Inventor: BARNER HERBERT E
IPC: B01J27/198
Filed: 1999-10-07
Abstract: A process for selectively oxidizing an organic molecule by reacting said organic molecule and oxygen in the presence of a selective oxidation catalyst supported on a mesh-like structure.
Patent KR-20010080649-A (KR)
IPC: G09G5/00
Filed: 2000-09-11
Abstract: 온도차 추정기에 의해 영상 신호에서 PDP의 표시 화면의 외주부의 온도를 나타내는 온도 추정값과 패널 외주부 온도 설정기로부터 출력되는 PDP의 패널 외주부의 온도를 나타내는 기준값을 이용하여 온도차 추정값을 구하고, 이 온도차 추정값에 따라 제어기 및 밝기 제어기에 의해 디스플레이부에 표시되는 화상의 휘도를 제어한다.
Patent KR-20010080720-A (KR)
IPC: C08J9/20
Filed: 1999-12-07
Abstract: 본 발명은 난연제로서 팽창 흑연 5 내지 50 중량% 및 임의로 인 화합물 2 내지 20 중량%를 포함하는, 입자 형태의 발포 폴리스티렌 중합체의 제조 방법에 관한 것이다.  본 발명에 따라, 상기 폴리스티렌 화합물은 난연제의 존재하에 스티렌을 현탁 중합시킴으로써 제조한다.
Patent KR-20010082359-A (KR)
IPC: A61P43/00
Filed: 1999-11-22
Abstract: 서방성 약제 조성물로서 유용한 신규한 부류의 생분해가능한 약제학적 조성물, 이의 제조방법 및 이러한 조성물의 사용 방법이 기술되고 청구된다.  이러한 조성물을 제조하는 방법은 (a) 약제학적 활성 분자와 생분해가능한 중합체를 무수 혼합하는 단계; (b) 혼합물을 용융 압출시켜 중합체 중의 활성 분자의 고체 용액을 형성하는 단계 및 (c) 고체 용액을 분쇄하여 주사가능한 제형으로 형성될 수 있는 미세입자를 형성하는 단계를 포함한다.  바람직한 양태는 폴리락티드-코-글리콜리드와 (+)-α-(2,3-디메톡시페닐)-1-[2-(4-플루오로페닐)에틸]-4-피페리딘메탄올(활성 성분)의 약제학적 조성물 및 이의 제조방법을 포함한다.  이러한 조성물은 활성 성분을 수일 내지 수주 동안 일정한 속도로 방출시킨다.  활성 성분은 5HT 2A 수용체에서 세로토닌의 작용을 길항하고, 예를 들어 정신분열증, 강박반응 질환, 수면 장해, 우울증, 식욕 부진, 불안증, 약물 중독 및 이극성 질환과 같은 여러가지 질환을 치료하는데 유용하다.
Patent KR-20010082768-A (KR)
Title: 능동 매트릭스 전계 발광 디스플레이 장치
IPC: G09G3/30
Filed: 2000-09-27
Abstract: 능동 매트릭스 전계 발광(EL) 디스플레이 장치는 기판(25) 상에 픽셀(10)의 어레이를 갖는데, 상기 픽셀(10) 각각은, EL 디스플레이 요소(20)와, 이전의 어드레스 기간에 인가되는 데이터 신호에 기초하여 구동 기간에 구동 전류를 제어하는 구동 장치(22)와, 픽셀의 행을 선택하고, 각 행의 어드레스 기간에 각 선택된 픽셀의 행에 데이터 신호를 공급하기 위해 어드레스 컨덕터(12, 14)의 세트를 거쳐 픽셀에 연결된 구동 회로(16, 18)를 포함한다. 데이터 신호는 구동 IC(40)에 의해 제공된다. 필요한 IC의 수를 감소시키기 위해, 멀티플렉싱 회로(45)는, 기판(25) 상의 픽셀 어레이로 집적되고, 구동 IC 출력(41)과 어드레스 컨덕터(14) 중 하나의 세트 사이에 연결되고, 행의 어드레스 기간에 데이터 신호를 각 구동 IC 출력으로부터 각 연관된 복수의 어드레스 컨덕터로 차례로 인가하도록 동작한다. 선택된 픽셀의 행의 디스플레이 요소는 불필요한 크로스토크 효과를 피하기 위해 행의 어드레스 기간에 동작하지 못하게 한다. 행의 선택 신호는 기판 상에 집적된 멀티플렉싱 회로(16)에 의해 이와 유사하게 공급될 수 있다.
Patent KR-20010108073-A (KR)
IPC: A61J3/07
Filed: 2000-01-06
Abstract: 본 발명은 바람직한 작용 방식이 에스테르 작용기의 가수분해를 촉매하는 것인 효소의 억제, 예를 들면 제품 및 과정에서 원하지 않은 효소의 제어 및 억제에 있어 하기 화학식(I)을 포함하는 화합물 또는 이것의 약학적으로 허용 가능한 염, 에스테르, 아미드 또는 프로드러그의 용도를 제공한다. 또한, 상기 화합물은 의약 치료, 예를 들면 비만 또는 비만 관련 증상의 치료에 유용하다. 또한, 본 발명은 화학식(I) 내에 속하는 신규한 화합물, 이것의 제조 방법, 이것을 함유하는 약학 조성물 및 이 약학 조성물의 제조 방법에 관한 것이다. 
     화학식(I) 
     
       
     
     상기 식 중, 
     A는 6원의 방향족 또는 헤테로방향족 고리이고, 
     R 1 은 분지쇄형 또는 비분지쇄형 알킬(하나 이상의 산소 원자에 의해 임의로 중단된), 알케닐, 알키닐, 시클로알킬, 시클로알케닐, 아릴, 아릴알킬, 환원된 아릴알킬, 아릴알케닐, 헤테로아릴, 헤테로아릴알킬, 헤테로아릴알케닐, 환원된 아릴, 환원된 헤테로아릴, 환원된 아릴알킬, 환원된 헤테로아릴알킬 또는 전술한 기들 중 어느 하나의 치환된 유도체이다.
Patent KR-20010101583-A (KR)
IPC: F04B9/123
Filed: 2000-11-20
Abstract: 본 발명은 슬러리 등의 침전물질을 포함하는 이송액을 사용하는 경우도 침전물질이 펌프의 액실내에 정체하여 모이는 것을 방지할 수 있도록 하는 펌프, 어큐뮬레이터 등의 유체기기에 관한 것으로서, 
     그를 위해 펌프본체(1)의 내부에, 축선방향으로 왕복운동하는 격막, 다이어프램 등의 격막(7)이 펌프본체(1)의 내벽(4a)과의 사이에 액실(9)을 형성하도록 구비되고, 내벽(4a)에 흡입구(18) 및 토출구(19)가 설치되고, 격막(7)의 왕복운동에 의해 흡입구(18)로부터 액실(9)내로 액체를 흡입하는 행정과, 액실(9)내의 액체를 토출구(19)로부터 토출하는 행정을 번갈아 실시하도록 되어 있으며, 흡입구(18)는 펌프본체(1)의 내벽(4a)으로부터 액실(9)내로 돌출하도록 고정된 흡입용 역지밸브(20)의 돌출선단부의 측면에 설치함으로써 액실(9)내의 원주벽(9a)을 향하여 흡입액을 분출하도록 되어 있으며, 따라서 흡입구(18)로부터 분출하는 흡입액은 액실(9)내의 원주벽(9a)을 따라서 선회류를 발생시키고, 이 선회류에 의해 액실(9)내가 교반되기 때문에 액실(9)내에서의 액의 체류를 적게 하여 항상 새로운 액의 공급을 가능하게 하고, 또 슬러리 등의 침전물질을 포함하는 액을 사용하는 경우도 침전물질이 액실(9)내에 침전하거나 응집하는 것을 방지할 수 있는 것을 특징으로 한다.
Patent KR-20020025865-A (KR)
IPC: F16G5/16
Filed: 2001-04-10
Abstract: 금속 벨트식 무단 변속기의 V-블록의 제조 방법을 제공한다.  V-블록은 메인 펀치와 카운터 펀치로 V-블록 프레스 재료를 펀칭함으로써 성형된다.  V-블록 프레스 재료는 대략 일정한 폭의 외부 부분을 포함하는 단면을 갖추고 있고 소정의 내부 거리만큼 로킹 에지로부터 먼 곳에서 재료의 가장 내부의 끝부쪽으로 완만하게 경사진 경사부를 구비한 테이퍼진 내부 부분을 갖추고 있다.  메인 펀치 및 카운터 펀치는 V-블록의 형상과 실질적으로 동일한 정면 형상을 갖추고 있고, 로킹 에지를 향한 양 펀치는 로킹 에지에 상응하는 곳에서 시작하는 경사부 및 점차로 내부로 상승하여 뻗어 있는 경사부를 갖추고 있다.
Patent KR-20020024584-A (KR)
Filed: 2000-04-27
Abstract: 유도체화된 다공성 규소를 포함하는 생합성 물질이 기재되어 있다.  다공성 규소의 유도체화는 이의 안정성을 증가시키는 것으로 밝혀졌다.  다공성 규소는 바람직하게는 규소의 산화를 포함하지 않는 기술에 의해, 예를 들면, 하이드로실릴화에 의해 유도체화된다.  유도체화된 다공성 규소는 탄산수에서 바람직하게는 2시간 이상 동안 비등시 안정하다.  유도체화된 다공성 규소는 바람직하게는 수성 KOH(pH 10)의 통기된 염기성 용액 및 25% EtOH/75% 수성 KOH(pH 10)의 용액 속에서 1시간 동안 비등시키는 것에 대해 적어도 실질적으로 안정하다.  모의 사람 혈장(SHP)에서 유도체화된 다공성 규소 물질의 부식 속도는 유도체화되지 않은 다공성 규소보다 크기가 2등급 이상 낮은 인자이다.  유도체화된 다공성 규소의 다공도는 바람직하게는 5% 이상이다.  유도체화된 다공성 규소를 포함하는 장치가 또한 기재되어 있다.  이들은 면역 분리 장치, 생체 배터리 장치 및 광학 장치를 포함한다.
Patent KR-20020002508-A (KR)
IPC: C07D309/08
Filed: 2000-05-15
Abstract: 본 치료 방법은 병리학적 매트릭스 메탈로프로테아제 활성과 관련된 상태를 갖는 숙주에 실질적으로 적어도 MMP-1 미만을 나타내는 반면, MMP-2, MMP-9 및 MMP-13 과 같이, 하나이상의 매트릭스 메탈로프로테아제 (MMP) 효소의 우수한 억제 활성을 나타내는 방향족 술폰 히드록삼산을 유효량으로 투여하는 것을 포함하는 것을 개시한다.     또한, 그의 선택적 활성을 갖는 메탈로프로테아제 억제 화합물, 이러한 화합물의 제조 방법 및 억제제로서 사용하는 약제학적 조성물을 개시한다.     해당 화합물은 구조중 화학식 B 에 해당한다.
Patent KR-20020012295-A (KR)
IPC: H01M4/131
Filed: 2000-07-07
Abstract: 스피넬구조를 갖는 Li－Mn계 복합산화물입자를 주체로 하는 리튬이온 2차전지용 정극활물질에 있어서, 다음 화학식 
     공극률(％) ＝ (A ／ B) ×100 
     (A는 2차입자 1개의 단면에 포함되는 포어의 총단면적이며, B는 2차입자 1개의 단면적임)으로 표시되는 상기 입자의 공극률의 평균치가 15％ 이하, 탭밀도가 1.9g／ml 이상, 결정자 크기가 400∼960Å, 격자 상수가 8.240Å 이하인 리튬이온 2차전지용 정극활물질, 그 정극활물질의 제조방법 및 그 정극활물질을 사용한 리튬이온 2차전지이다. 
     본 발명에 의한 정극활물질은 입자가 치밀하고 또한 구형(球形)이며, 전극에의 충전성이 우수하고, 2차전지로서 고온 환경하에서도 초기용량 및 용량유지율이 높다.
Patent KR-20030061548-A (KR)
Title: Inner structure of heat transfer tube for enhancing heat exchanger
Inventor: JUNG JIN HUI
IPC: F28F1/40
Filed: 2002-01-14
Abstract: PURPOSE: An inner structure of a heat transfer tube for enhancing heat exchange is provided to improve heat transfer of the heat transfer tube while reducing circulating power of working fluid. CONSTITUTION: An inside of a heat transfer tube(10) is formed to induce change of flowing of working fluid and to reduce power needed for circulation of working fluid by protrusively forming a spiral flow disturbing element on an inside wall of the heat transfer tube to expand heat transfer area and to form turbulence, and by cutting the flow disturbing element by forming grooves on the flow disturbing element at regular intervals. A segment rib(40) is spirally and protrusively formed on an inside of the heat transfer tube, and separated by concave grooves(50) formed on an inner circumferential surface of the heat transfer tube and cut by regular intervals. Sections of the concave grooves are formed parallel to an axis of a channel of the heat transfer tube. Angle of spiral formed by the segment rib is determined considering reduction of pressure due to heat transfer increasing effect and disturbance of flowing direction of fluid, and preferably 20-70 deg.
Patent KR-20030062857-A (KR)
Inventor: BAE BYEONG SU
IPC: C09D183/08
Filed: 2002-01-21
Abstract: PURPOSE: A hydrophilic coating composition and a coating film coated with the composition are provided, wherein the composition shows excellent storage stability and coating property even in a high concentration of alcoholic aqueous solution and can be favorably coated on a plastic substrate without pretreatment. CONSTITUTION: The hydrophilic coating composition comprises a hydrophilic inorganic-organic composite polymer whose core comprises an inorganic material having a Si-O-Si bond and is hard and whose shell comprises a hydrophilic polymer and is soft. Preferably the hydrophilic coating composition comprises 0.01-50 wt% of a hydrophilic inorganic-organic composite polymer; 0.01-40 wt% of an inorganic colloid; 0.01-5 wt% of an additive; and the balance of a solvent. Preferably the inorganic-organic composite polymer is obtained from the compounds represented by (R1)n(R2)mSi(OR2)4-(n+m) and CH(R2)=C(R2)YR4, wherein R1 is an alkyl group of C1-C22 containing no or at least one hetero atom and containing at least one unsaturated bond; R2 is H, a methyl group, an ethyl group, a propyl group, a butyl group, an alkyl group containing no or at least one hetero atom or R1; Y is -CO2-, -OCO-, -OCO2-, -CONH-, -NHCO- or -CH2-; R4 is an alkyl group of C1-C50 containing or not containing Y, and its terminal group represents OH, NR2H, -(CH2CH2O)x-H, -(OCH2CH2)x-H, -(CH2CH2CH2O)x-H, -(OCH2CH2CH2)x-H, NR2COOH, -COOH, -CONH2, -OPO2H2, -PO3H2, -OSO3H, -SO3H, -COOQ, -OPO2Q2, -PO3Q2, -OSO3Q, -SO3Q, -N(R2)2O-, or -S+R2O-; n is 1, 2 or 3; m is 0, 1, 2 or 3; x is an integer of 0-50; and Q is Li+, Na+, K+, Mg2+ or Ca2+.
Patent KR-20030063008-A (KR)
Title: Paint drying device
Inventor: LEE WOO SEOK
IPC: B05C9/14
Filed: 2002-01-22
Abstract: PURPOSE: A paint dryer is provided, to reduce the drying time by employing a far infrared ray heater compared with a heater drying-type paint dryer and to reduce the size of equipment by decreasing the distance of conveyer hangers. CONSTITUTION: The paint dryer comprises a heat source employing a far infrared ray and a heat wind; stages(31, 32, 33, 34) which are multilayered and transfer products to one direction or another direction; and a lift(51) and a posher(52) which are installed at the both ends of the stages(31, 32, 33, 34), respectively, and pushes products at one point to load or unload the products. Preferably the stages(31, 32, 33, 34) comprise further a dummy stage for making the injection direction of products be different from the discharge direction of products. The heat source uses the far infrared ray by the IR heaters(41) installed on the each stage(31, 32, 33, 34) at different intervals.
Patent KR-20030065056-A (KR)
Title: Non-attach type wearable tool of tire having snow chain function
Inventor: KIM SUNG IL
IPC: B60C27/06
Filed: 2002-01-29
Abstract: PURPOSE: A non-fixed tire-wearing unit functioning as a snow chain is provided to firmly fix only by being inserted from an outer wheel of a tire, put into, and joined, to easily install to the tire without separate tools, and to considerably reduce wearing time. CONSTITUTION: A non-fixed tire-wearing unit functioning as a snow chain is composed of a finger member(10) located on an outer peripheral surface of a tire(1) to move toward directions of gripping the tire and releasing a grip and a pressurizing unit(20) pressurizing the finger member to move the finger member toward the direction of gripping the tire. The finger member comprises a plurality of hard fingers(11) and a finger base(12). The fingers are inserted from an outer wheel of the tire and bent in a shape, which encloses the outer peripheral surface of the tire, and the fingers includes an uneven surface(11a) formed at the outer surface and protrusions(11b) bent at the ends of the finger member not to be separated in gripping the tire. The finger base is located in the center of the fingers radially arranged and hinge-combined with fingers to make the fingers close or open toward the tire.
Patent KR-20020064192-A (KR)
Inventor: FUJIE MAKOTO
IPC: B01D71/36
Filed: 2002-01-30
Abstract: PURPOSE: A filtering apparatus which is chemically stable and a back wash method for a filtering apparatus, for removing suspended solid contained in hot water properly without considering elution from the filter, for satisfying water quality control because the amount of the elution is little, and for preventing damages of the filter and lowering of permeability of the filter because of the heat cycle. CONSTITUTION: The filtering apparatus(1) comprises a vessel(2) adapted from connecting a feed inlet line(4a) for introducing feed into the vessel and a filtrate outlet line for letting filtrate out of the vessel; and a filter contained in the vessel for filtering the feed to let filtered feed flow as the filtrate; wherein the filter(3) is made of fluororesin to which thermal treatment is added in at least one of gas and liquid beforehand. The filtering apparatus comprises a vessel(2) adapted from connecting a feed inlet line(4a) for introducing feed into the vessel and a filtrate outlet line(46) for letting filtrate out of the vessel; and a filter contained in the vessel for filtering the feed to let filtered feed flow as the filtrate; wherein the filter(3) is made of fluororesin permeated with permeation fluid composed of at least one of hot water and steam beforehand.
Patent KR-20030065143-A (KR)
Title: Method Of Active Alignment For An Optical Module And Apparatus Thereof
Inventor: CHOI HUI CHAN
IPC: G02B6/42
Filed: 2002-01-31
Abstract: PURPOSE: An active arrangement method of an optical module and an apparatus thereof are provided which enable active arrangement of the optical module. CONSTITUTION: A light emitting part(2) generates an AC optical signal having a fixed frequency by modulating a light source having output characteristics of a continuous wave. A light receiving part(4) converts the AC optical signal generated in the light emitting part into a current signal, and converts the converted current signal into a voltage signal having a fixed amplitude. An amplifier(6) amplifies the voltage signal converted in the light receiving part. And a peak detector(8) detects an amplitude of the voltage signal amplified in the amplifier and then converts it into a DC signal.
Patent KR-20030068324-A (KR)
Inventor: KIM GYEONG DAE
IPC: H01L21/3065
Filed: 2002-02-15
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of restraining long cone shaped particles from being generated at the peripheral portion of a wafer by using an etching apparatus having a predetermined clamp while forming an OSC structure capacitor on the wafer. CONSTITUTION: A wafer(W) is loaded in a chamber(10) for carrying out an etching process. At this time, a lower metal line and a poly layer are formed at the upper portion of the wafer. Plasma is generated in the chamber by flowing etching gas. Then, the poly layer is entirely etched by using the plasma. At this time, a clamp(25) is used for preventing the poly layer formed at the peripheral portion of the wafer from being etched. Preferably, the peripheral portion of the wafer is covered with the clamp as much as 0.7-1.3 mm. Preferably, the clamp is spaced apart from the peripheral portion of the wafer as much as 0.5-1 mm.
Patent KR-20030068754-A (KR)
Title: Oil Tank Level Gauge and Stock Management System Using Ultrasound
Inventor: OH SUNG HOON
IPC: G01F23/296
Filed: 2002-02-16
Abstract: PURPOSE: An apparatus for measuring the residual amount of an oil tank and for managing stock is provided to precisely measure the remaining of the oil tank in a non-contact manner by using an ultrasonic wave. CONSTITUTION: An apparatus for measuring the residual amount of an oil tank includes an ultrasonic receiver sensor(1) generating an ultrasonic wave of 40KHz, an ultrasonic transmitter sensor(2) for receiving the ultrasonic wave reflected from a surface of oil, and an ultrasonic sensor board(3) for measuring a distance value by using the ultrasonic wave reflected from the surface of oil. A data input(4) is provided to transmit the distance value to a main control board(5). A temperature sensor is installed in the ultrasonic sensor board(3) in order to correct a variation value corresponding to a temperature of the ultrasonic wave. The distance value calculated by the main control board(5) is displayed in a display device(7).
Patent KR-20030069652-A (KR)
Title: Precharge Method and Precharge voltage generation circuit of signal line
Inventor: PARK SANG HO
IPC: G11C7/12
Filed: 2002-02-22
Abstract: PURPOSE: A method for precharging a signal line and a precharge voltage generation circuit are provided to maintain constantly slew rates for all output signals by precharging a signal connected to an auxiliary source driver to the next output signal level. CONSTITUTION: The first polarity inversion signal of the first data is compared to the second polarity inversion signal of the second data(910). One voltage level is selectively outputted from precharge voltages having different voltage levels and the selected voltage level in response to the combination of the second polarity inversion signal and the most significant bit of the second data when a phase of the first polarity inversion signal is different from the phase of the second polarity inversion signal(920). A signal line connected to an auxiliary source driver is precharged by the selected voltage level in response to a precharge timing control signal(950).
Patent KR-20030070464-A (KR)
Title: Cold cathode emission source
Inventor: AHN JI HUN
IPC: H01J9/02
Filed: 2002-02-25
Abstract: PURPOSE: A cold cathode electron source is provided to allow the electron gun to operate at a low voltage by lowering a turn-on voltage, while achieving improved characteristics of electron emission. CONSTITUTION: A cold cathode electron source(4) comprises a silicon substrate(8) on which a catalyst metal layer(10), an insulating layer(12) and a gate metal layer(14) are deposited; a hole portion(16) penetrating through the catalyst metal layer, insulating layer and the gate metal layer so as to form an emitter(20); and the emitter constituted by a plurality of carbon nanotubes(18) grown in the direction parallel to the silicon substrate, from the surface of the catalyst metal layer exposed by the hole portion.
Patent KR-20030058907-A (KR)
Title: Structure for projection television and method thereon
Inventor: JUNG DONG SEON
IPC: H04N5/74
Filed: 2002-03-08
Abstract: PURPOSE: A projection television structure and a method for constructing the structure are provided to simplify a procedure of manufacturing a projection television set. CONSTITUTION: A projection television structure includes a base(30), a screen(1), a front panel(15), a cabinet(40), and a back cover(20,25). An image forming device is set on the base. An image is formed on the screen according to light emitted from the image forming device. The front panel is placed under the screen. The cabinet has an upper opening and a lower opening. The screen is set in the upper opening of the cabinet. The front panel is fitted in the lower opening of the cabinet. The upper and lower openings are integrated with each other. The back cover is located behind the cabinet. The cabinet further includes a screen support that is placed under the screen to support the screen.