baber/WOPTO huggingface dataset:
Patent KR-20000076838-A (KR)
Title: Ⅲ-ⅴ족 화합물 반도체
IPC: H01L21/205
Filed: 2000-03-13
Abstract: 일반식 In u Ga v Al w N (u+v+w=1, 0 u 1, 0 v 1, 0 w 1) 로 표현되는 제 1 의 III-V 족 화합물 반도체로부터 형성된 레이어, 상기 제 1 의 III-V 족 화합물 반도체 뿐만 아니라 후술할 제 2 의 III-V 족 화합물 반도체와도 다른 물질로부터 상기 레이어 상에 형성된 패턴 (pattern), 및 상기 제 1 의 III-V 족 화합물 반도체와 상기 패턴상에, 일반식 In x Ga y Al z N (x+y+z=1, 0 x 1, 0 y 1, 0 z 1) 로 표현되는 제 2 의 III-V 족 화합물 반도체로부터 형성되는 레이어를 구비하는 III-V 족 화합물 반도체로서, 상기 제 2 의 III-V 족 화합물 반도체의 (0004) 반사 X-ray 로킹커브 (reflection X-ray rocking curve) 에서 최대값의 절반에서의 폭 (FWHM) 이 X-ray 입사방향에 무관하게 700 초 이하인 것을 특징으로 하는 III-V 족 화합물 반도체가 제공된다.     고품질 반도체인 상기 III-V 족 화합물 반도체는 저각 입계 (low angle grain boundaries) 의 발생이 억제된다.
Patent KR-20010091680-A (KR)
Title: Method for searching wireless internet site of portable communication apparatus and system using the same
Inventor: NAM KI BEOM
IPC: H04W88/18
Filed: 2000-03-17
Abstract: PURPOSE: A method for searching for wireless Internet sites in a mobile communication equipment and a system using thereof are provided to search for wireless Internet sites through a mobile communication equipment and display searched domain names to the equipment, so that a user can use the Internet more conveniently and rapidly when he accesses a specific site. CONSTITUTION: If a user transfers his mobile communication equipment into an Internet mode, the equipment is connected to the Internet through a repeater(S200). The user accesses a search server using the mobile communication equipment(S210). The mobile communication equipment downloads a search menu from the search server and displays it on the LCD(S220). If the user inputs a query in order to find out a wireless Internet site having desired information, the equipment transmits the inputted query to the search server(S230). The search server searches a database for a consistent item using the received query(S240). The search server transmits the domain names of wireless Internet sites connected and stored with the searched item to the user's mobile communication equipment. If the domain names are displayed, the user selects and accesses a desired site among the displayed domain names(S290).
Patent KR-20010091729-A (KR)
Title: semiconductor memory device, and redundancy circuit and method thereof
Inventor: JUNG HYEON TAEK
IPC: G06F12/16
Filed: 2000-03-17
Abstract: PURPOSE: A semiconductor memory device, and a redundancy circuit and method thereof are provided, which can improve a redundancy efficiency by performing a redundancy operation in a unit of fixed number of memory cell array blocks whose fail types are equal. CONSTITUTION: The redundancy circuit comprises a memory cell array bank comprising m memory cell array blocks(BL1,BL2,BL3,...,BLm), a selection circuit(50), a control signal generation circuit(52) and l redundancy circuits(100-1,...,100-l) comprising i defective redundant enable signal generation circuits(54-1,54-2,...,54-i). The l defective column selection signal lines of n column selection signal lines(CSL1-CSLn) of each memory cell array block can be substituted with l redundant column selection signal lines(RCSL1-RCSLl). That is, each of l redundancy circuits(100-1,...,100-l) is connected to each of l redundant column selection signal lines.
Patent KR-20010006832-A (KR)
Title: Semiconductor integrated circuit
Inventor: HAYASHI TOMONORI
IPC: G11C11/407
Filed: 2000-03-20
Abstract: PURPOSE: To reduce costs for testing by carrying out a performance test at a high speed when data are serially transmitted to/from the outside, and are transmitted in parallel for reading/writing them from/in memory cells. CONSTITUTION: This semiconductor integrated circuit is comprised of an input converter part 42 for converting serial data supplied externally into parallel data, plural memory cell areas 16a, 16b for writing each parallel data therein, and an output converter part 44 for converting the parallel data generated from the data read out of each memory cell 16a, 16b into serial data. In this case, the circuit is provided with an arithmetic part 56 for logically operating the parallel data read of each memory cell 16a, 16b on the rest mode.
Patent KR-20010039552-A (KR)
Title: The pipe coupler
Inventor: IKEDA KOJI
IPC: F16L21/08
Filed: 2000-03-28
Abstract: PURPOSE: To improve the workability and the water stopping performance by smoothly inserting a connection pipe in a pipe joint to be connected only by inserting the connection pipe for water supply, hot water supply and the like. CONSTITUTION: In the pipe joint A in which a joint body 1 is provided with a cylindrical guide part 8 to externally fit a connection pipe 22 inside a male screw part 7 formed on an outer circumferential thereof, a groove hole 9 is formed in an outer circumferential surface of the guide part 8, a seal member 10 to be closely attached to the inner circumferential surface of the connection pipe 22 is fitted to the groove hole 9, a ring 18 is interposed between a cap nut 14 to be screwed to the male screw part 7 and the guide part 8, the resin connection pipe 22 is inserted from an opening part 17 of the cap nut 14, and the ring 18 presses the outer circumferential surface of the connection pipe 22 to be connected to the joint body 1, a guide ring 11 to cover the seal member 10 is externally fitted to the outer circumference of the guide part 8, and the guide ring 11 slides the guide part 8 while uniformly pressing the outer circumferential surface of the seal member 10 in a condition held by the inner circumferential surface of the connection pipe 22 and the outer circumferential surface of the guide part 8 when the connection pipe 22 is inserted from the opening part 17 of the cap nut 14.
Patent KR-20010094093-A (KR)
Title: Apparatus for detection of clock frequency chage rate in line switching system
Inventor: KIM TAE GYUN
IPC: H04L12/24
Filed: 2000-04-04
Abstract: PURPOSE: An apparatus for detecting a clock frequency change rate in a line switching system is provided to rapidly and exactly judge the wrong operation of each unit in a line switching system, without the necessity of using an external clock measuring equipment, by detecting each unit's clock frequency change rate in real time. CONSTITUTION: A line switching system to detect a clock frequency change rate consists of an oscillator-divider unit(21), a pulse counter(22), a flip-flop(23), a monostable vibrator(24), an AND gate(25), a change rate detection block(30). The oscillator-divider unit(21) generates, divides and outputs sample pulses. The pulse counter(22) counts the sample pulses output from the oscillator-divider unit(21). The flip-flop(23) outputs pulses two times larger than the cycle of the sample pulses output from the oscillator-divider unit(21). The monostable vibrator(24) generates and outputs a reset pulse if a pulse is output from the flip-flop(23). The AND gate(25) executes AND operation for the sample pulses counted at the pulse counter(22), the pulses output from the flip-flop(23) and a clock frequency to be measured. The change rate detection block(30) receives an AND-operated signal from the AND gate(25) and detects the extent of frequency variation.
Patent KR-20010090952-A (KR)
Title: Light emitting material using cerium silicate and its manufacturaing method
Inventor: CHOI WON CHEOL
IPC: C09K11/59
Filed: 2000-04-08
Abstract: PURPOSE: Provided are cerium silicate as a light-emitting material which emits light in the ultraviolet range to the blue light range and a process for producing the same for giving optical and structural changes to the material. CONSTITUTION: The cerium silicate as a light emitting material is produced by the steps of: depositing the cerium oxides on a silicon substrate or depositing the cerium oxides with silicon on a silicon or sapphire substrate or depositing silicon oxides on the silicon or sapphire substrate and depositing the cerium oxides on the silicon oxides; heat-treating at a fixed temperature to form the cerium silicate crystal structure. The cerium silicate as a light emitting material has the wavelength of 400-358nm and the cerium silicate is Ce4.667(SiO4)3O or Ce2Si2O7.
Patent KR-20010096349-A (KR)
Title: Method for fabricating a semiconductor memory device having Self-Aligned Contact
Inventor: KIM JONG SAM
IPC: H01L21/28
Filed: 2000-04-18
Abstract: PURPOSE: A fabrication method of semiconductor memory devices having an SAC(Self Aligned Contact) is provided to prevent a partial oxidation of a tungsten film by using double structure as a hard mask. CONSTITUTION: After forming a first insulating layer(2) on a substrate having transistors, a conductive plug(4) is formed. After forming a second insulating layer(6) on the resultant structure, a tungsten film(8) as a bit line is formed. A first and a second hard mask patterns(10,12), such as nitride and polysilicon are sequentially formed on the resultant structure. A bit line is formed to electrically connect to the conductive plug by patterning the tungsten film(8) using the first and the second hard mask patterns(10,12). After forming a third insulating layer(18) on the resultant structure, a contact hole is formed to expose the conductive plug.
Patent KR-20010097061-A (KR)
Inventor: LEE SANG BONG
Filed: 2000-04-19
Abstract: 본 발명은 인터넷 사이트 운영자를 통하여 물품을 대여받고자 하는 사람과 물품을 제공해주는 개인 또는 회사가 운송업체를 통하여 거래가 이루어지도록 물품 일반대여, 역대여, 및 공동대여 방법에 관한 것이다.
Patent KR-20010014854-A (KR)
Inventor: KIM JONG HA
IPC: H01H13/82
Filed: 2000-05-01
Abstract: PURPOSE: A key pad assembly for a mobile communication apparatus is provided to prevent a foreign substance such as dust from attaching to the key pad assembly, when the key pad assembly generates a signal by being contacted with contact patterns of a substrate while a button of a cellular phone is pressed, so as to prevent a wrong operation of a connector and to previously preserve the gold-plated contact patterns from decay. CONSTITUTION: A PCB(Printed Circuit Board)(10) forms contact patterns(12). Many contact units(20) are attached to the first sheet(30), to be contacted with the contact patterns(12) on the PCB(10). The contact units(20) are set in the second sheet(40), by being bonded between the first sheet(30) and the PCB(10). At least more than one air vent units(50) are formed on the second sheet(40), to perform air vent operations for elastic operations of the contact units(20). The second sheet(40) insulates circuit patterns of the PCB(10) and the contact units(20). The contact units(20) are dome-typed plates.
Patent KR-20010103215-A (KR)
Inventor: LEE SEUNG YEON
Filed: 2000-05-08
Abstract: 본 발명은 인터넷 사이트에서의 배너광고방법에 관한 것이다. 
     이러한 본 발명은, 배너광고의 클릭과 관련한 당첨규칙을 규정하는 제1 단계; 사용자가 배너광고를 클릭하면 상기 당첨규칙을 만족하는지를 판단하는 제2 단계; 상기 당첨규칙을 만족하는 경우에는 당첨자로 등록하는 제3 단계; 및 상기 당첨규칙에 해당하는 모든 당첨자가 발생하였는지를 판단하여 모든 당첨자가 발생한 경우에는 각 당첨자들에게 경품을 제공하되, 그렇지 않은 경우에는 상기 제2 단계로 진행하는 제4 단계를 포함하도록 구성된다. 이 때, 상기 당첨규칙은 일정 기간내에 선착순으로 배너광고를 클릭하는 사용자가 당첨되는 것으로 하되, 일정 인원수로 제한하도록 구성하면 바람직하게 실시할 수 있다. 
     본 발명을 사용하면, 사용자들에게 배너광고를 경쟁적으로 클릭하도록 하는 유인을 주게 되므로 배너광고의 광고 효과를 증대시킬 수 있다. 또한, 배너광고를 클릭한 상태에 따라 적립금을 지급하도록 하면, 배너광고를 올린 웹 사이트 자체도 많은 회원을 모집할 수 있게 된다. 즉, 가입자, 웹 사이트의 운용자, 및 광고주 모두에게 이익을 줄 수 있는 효과가 있다.
Patent KR-20010104143-A (KR)
Inventor: MOK HYUN SOO
Filed: 2000-05-13
Abstract: 본 발명은 인터넷에서의 컴퓨터 관련 제품에 대한 고객지원 서비스를 제공하는 온라인 서포트(online support) 방법에 관한 것으로, 클라이언트에 대한 인증절차를 수행하고, 클라이언트의 원격하드웨어 인식을 요구받게 되면, 드라이버 지원 시스템의 원격하드웨어인식 모듈을 이용하여 직접등록 방식 또는 자동인식의 방법으로 클라이언트의 하드웨어 정보를 데이터베이스에 저장한다. 인식결과 클라이언트 하드웨어 드라이버에 문제가 있거나 다시 드라이버의 재 설치가 필요해 클라이언트로부터 하드웨어 드라이버에 대하여 문제해결을 요구받게되면, 요구에 따라 드라이버 지원 시스템의 다운로드모듈 또는 원격드라이버 설치 및 업데이트 모듈을 이용하여 하드웨어 드라이버의 문제 해결을 수행하고 미 해결될 경우, 원격제어 유틸리티를 통해 원격 수리를 받도록 한다. 그리고, 원격제어 유틸리티에 의하여도 미 해결될 경우, 복구 유틸리티를 통해 운영체제 전체를 복구하고, 복구 유틸리티에도 미 해결될 경우, 리눅스 기반의 원격고장진단시스템을 이용하여 하드웨어 문제인지, 아니면 소프트웨어 문제인지를 판별하여 판별된 문제에 따라 해결한다. 따라서, 고비용의 오프라인 고객지원을 최소화하고 모든 과정에 자동화기능을 추가하여 고객과 제조업체에 서비스의 만족도와 품질을 향상시키고, 고객지원 비용을 절감할 수 있다.
Patent KR-20010049461-A (KR)
Inventor: SUNG PHIL HO
IPC: G02F1/1333
Filed: 2000-06-01
Abstract: PURPOSE: A cover glass of flat panel display element is provided, which effectively protects the display panel and stably keeps airtightness of space between the display panel and the cover glass. And a method for preparing the same is also provided. CONSTITUTION: The cover glass of flat panel display element(100) comprises: (i) a front side plate(110); and (ii) at least one spacer(120) which is formed as one body with the front plate. The method comprises steps of: (i) pre-heating a plate-shaped glass at a temperature of 300-800 deg.C for 1-5 minutes; (ii) heating the pre-heated glass of the step (i) to a temperature of 600-1,000 deg.C, at which the plastic deformation of the glass is able to occur, for 3-30 seconds; and (iii) press-molding the heated glass of the step (ii) to form a cover glass under pressure of 3-6 kilogram/square centimeter.
Patent KR-20010109992-A (KR)
Inventor: KWON TAE BONG
Filed: 2000-06-05
Abstract: 본 발명은 압력 보상 기능을 가진 개스 리프터에 관한 것으로, 개스 리프터의 실린더 내부에 주변 온도의 변화에 따라 수반되는 봉입된 개스의 체적 변화에 기인되는 압력 저하를 보상할 수 있는 기능을 구현하는 압력 보상 체임버를 마련함으로써, 주변의 온도가 낮은 저온 지역에서도 개스 리프터의 정상적인 기능 발휘를 구현할 수 있도록 하는 데 그 목적이 있다. 
     전술한 바의 목적을 달성하기 위한 본 발명은, 일측이 작동 요소측에 고정되면서 내부에 고압의 개스가 충전되는 압력실(P)을 형성하는 실린더(12)와, 이 실린더(12)내에 이동 가능하게 결합됨과 더불어 일측이 차체측에 고정되는 로드(14) 및, 이 로드(14)의 타측에 결합되어 상기 실린더(12)내에 수용되는 피스톤(16)을 포함하는 개스 리프터에 있어서, 상기 실린더(12)의 내부에 보조 압력실(P')을 형성하도록 격벽부재(22)가 설치되고, 이 격벽부재(22)에는 상기 피스톤(16)의 압축 행정시 보조 압력실(P')내로 압축된 개스를 유입시키도록 개방되는 압력 조절 밸브(24)가 설치되며, 이 격벽부재(22)에는 저온시 상기 압력실(P)내의 압력이 저하될 경우에 상기 압력실(P)내의 압력을 보상하도록 개방되는 압력 보상 밸브(26)가 설치된 것을 특징으로 한다.
Patent KR-20010111405-A (KR)
Inventor: KIM KWANG SOO
Filed: 2000-06-08
Abstract: 본 발명은 제거식 소일네일링 공법 및 그 공법에 사용되는 네일 조립체에 관한 것으로, 더욱 상세하게는 경사면 및 건물의 기초 굴착을 위한 철근보강사면안정공법시 보강재로서 일반 이형철근인 네일을 지중에 수평 또는 수직으로 삽입하여 지반에 프리스트레스를 도입시킴으로서 원지반의 전단강도를 향상시켜 보강재인 네일에 의해 보강된 토체옹벽(soil wall) 전체를 일체화시킴으로서 토체가 배면의 주동토압에 대한 대항력 증진 및 수평, 수직의 지반변위를 최소화시켜 네일의 간격 및 소요길이의 감소로 보다 경제적이고 안전하게 시공할 수 있게 하고 사용후 네일을 제거할 수 있게 한 제거식 소일네일링 공법 및 그 공법에 사용되는 네일 조립체에 관한 것이다.
Patent KR-20010110895-A (KR)
Inventor: JIN BEOM SU
Filed: 2000-06-09
Abstract: CDMA 이동통신 시스템의 호 할당 방법이 개시되어 있다.  a) 기지국 제어기가 이동국으로부터 송신되는 이동국 수신상태 데이터를 검색하는 단계, b) 단계 a)에서 검색한 데이터 중 이동국이 동조하고 있는 주파수가 공통 주파수 인지를 판별하는 단계, c) 단계 a)에서 판별한 주파수가 공통 주파수인 경우, 모기지국 파일럿 신호의 세기(E C /I O )를 일정값(A)와 비교하는 단계, d) 단계 c)에서 상기 E C /I O 가 A보다 작은 경우, 상기 공통 주파수로 호 소통하는 단계, e) 단계 c)에서 상기 E C /I O 가 A보다 큰 경우, 상기 공통 주파수 또는 다른 FA로 호 소통하는 단계, f) 단계 a)에서 판별한 주파수가 공통 주파수가 아닌 경우, 상기 E C /I O 를 A와 비교하는 단계, g) 단계 f)에서 상기 E C /I O 가 A보다 큰 경우, 다른 FA를 선택하여 호 소통하는 단계, h) 단계 f)에서 상기 E C /I O 가 A보다 작은 경우, 상기 공통 주파수 또는 다른 FA를 선택하여 호 소통하는 단계를 포함한다.  기지국 제어기가 이동국에서 송신되는 이동국 수신상태 데이터를 기초로 하여 이동국의 위치를 파악하고, 호를 적절히 할당하여 양호한 통화 서비스를 제공할 수 있도록 한다.  또한, 중계기 하드웨어 장치 구성을 줄여 비용을 절감할 수 있다.
Patent KR-20010111774-A (KR)
Inventor: PARK JONG KWAN
Filed: 2000-06-13
Abstract: 본 발명은 전립선암 수술용 의료겸자에 관한 것으로, 전립선암 수술시 출혈방지를 위하여 혈관과 주위조직을 같이 잡는 집게의 끝단 중앙에 수술용 봉합사의 관통구가 형성된 의료겸자를 제공하기 위한 것인 바, 
     전방 가위부와 손가락을 끼울 수 있는 후방 손잡이부로 구성된 의료겸자에 있어서, 상기 손잡이부는 손가락을 끼울 수 있는 링형 구조와 가위의 비틀림 및 가이드역할을 하도록 표면에 돌기가 형성된 가이드대로 구성되고, 상기 가위부는 그 끝단에 반원형으로 절곡된 좌/우측집게와, 상기 좌/우측집게가 접촉되는 면은 대상물이 빠지지 않도록 다수의 톱니가 형성되고, 그 접촉면의 중앙은 관통구를 형성하여 수술시 봉합사가 자유롭게 통과하도록 형성함으로써, 수술시 꿰매는 작업이 편리하며 특히 수술 대상물을 잡고 출혈방지를 위하여 혈관과 주위조직을 묶기 위해 봉합사를 관통시킬 때 겸자의 관통홀 내로 들어간 봉합사를 용이하게 겸자로부터 분리할 수 있는  뛰어난 효과가 있다.
Patent KR-20010025166-A (KR)
Title: An apparatus for crushing and collecting ocean sluge
Inventor: YOO CHI BOK
IPC: E01H12/00
Filed: 2000-06-16
Abstract: PURPOSE: A marine sludge crush-removal apparatus is provided to maximize the removal efficiency of marine sludge and various trash included, and to prevent mechanical trouble. CONSTITUTION: A marine sludge crush-removal apparatus(200) comprises; a rectangular casing; a crushing screw(20), an upper screw(40), an auxiliary screw(130) operated selectively through oil hydraulic motors(50) provided to the upper, right and left sides of a receiving space(150) formed on one side of the casing respectively; an oil hydraulic cylinder(110) for moving the crushing screw backward and forward in the horizontal direction of the receiving space; a pair of clamps(140) turning on a pivot in a push-pull form by the operation of the oil hydraulic cylinder provided to the lower part of the receiving space; a leg(80) attached to the inner corner part of the casing to adjust the whole height of the crush-removal apparatus; a bellows(60) attached toward the upper part of the upper screw to suck the sludge crushed in the receiving space, and the general trash included in the sludge; a screw mixer(100) operated by an oil hydraulic motor(170) attached to one side of the receiving space to float the sludge on a riverbed.
Patent KR-20000054680-A (KR)
Inventor: KIM JAE WOOK
IPC: A47B96/00
Filed: 2000-06-16
Abstract: PURPOSE: Furniture for removing dust is provided which can remove the dust easily under the bottom of the furnace where the inhaling outlet cannot be inserted well CONSTITUTION: Furniture for removing dust is characterized by being comprised of: at least one dented part(2a, 2b, 2c) formed in the furniture frame; and inhaling devices(3,8) installed at the dented part(2a, 2b, 2c), having a frame with at least one inhaling hole(6), which one end(5) having a lid(7) is opened for inhaling dust and the other end is closed.
Patent KR-20000054753-A (KR)
Inventor: SHIN HYUN DEOK
IPC: A47B91/00
Filed: 2000-06-21
Abstract: PURPOSE: A leg of a desk is provided, which fixes various electric wires and a telephone wire on the outside of a leg of a desk not to show from the outside and cleans the circumstance and is easy to separate various electric wires and a telephone wire. CONSTITUTION: A leg of a desk comprises; a leg fixing tool (10), which is installed on the corners of a upper plate of a desk (101) and has a fixed bar (12) for inserting a leg (102); a panel tool (20) which is installed on a side of a leg fixing tool (10) and supports the front panel (22) and the side panel of a desk; a height control tool (30), which is installed on the lower part of a leg (102) and controls height and adjusts the horizontality of a desk; a joint tool (40), which is installed on the upper and lower part of a leg and has a fixing groove (42); a fixing clip of an electric wire (50), which has a fixing projection (54) inserted to a fixing groove (42) and an inserting groove of an electric wire (56) to insert electric wires and a telephone wire; a protective cover of an electric wire (60), which is installed between a fixing clip of an electric wire (50) installed on the upper and the lower part of a leg and protects above wires.
Patent KR-20020005213-A (KR)
Title: A improved process for preparing 3-trifluoromethyl-5- hydroxypyrazole phosphonic acid ester derivatives in water solvent
Inventor: KONG YEONG DAE
IPC: C07F9/6503
Filed: 2000-06-27
Abstract: PURPOSE: Provided is a preparation method in making 3-trifluoromethyl-5-hydroxylpyrazole phosphoric acid ester derivatives using water as a solvent in place of organic solvent. Using water facilitates the easy separation of side products such as 3-trifluoromethyl-5-hydroxylpyrazole and halophosphate in the esterification reaction between derivatives of 3-trifluoromethyl-5-hydroxylpyrazole and halophosphate with catalysts such as dimethylaminopyridine and strong inorganic bases like hydroxides of alkali metal. The reaction process shortens the reaction time and offers high yield because the pure product is obtained by a simple extraction method. CONSTITUTION: The preparation method of the compound represented by the formula 1 comprises: adding 0.01 mole of 1-methyl-3-trifluoromethyl-5-hydroxylpyrazole and 0.02 mole of sodium hydroxide in 50mL of water; adding 0.01 mole of diethylchlorothiophosphate and 0.8 mmole of 4-dimethylaminopyridine to the above mixture; stirring the reactants at room temperature for 48 hours; and extracting the reaction mixture with 30mL of dichloromethane two times, drying the mixture with MgSO4 and evaporating the solvent to obtain the over 95% pure product, O,OO,O-diethyl-OO-(1-methyl-3-trifluoromethyl- 5-pyrazoyl)thiophosphoric ester in 88% yield. In the formula 1, R1 is hydrogen or halogen atom; R2 is straight or branched low alkyl group of C1-C6; R3 is C1-C6 low alkoxy, C1-C6 straight or branched low alkylthio, phenoxy or thiophenoxy group; R4 is hydrogen atom, C1-C6 straight or branched low alkyl, or substituted or unsubstituted phenyl group where the substituents are halogen atom, trifluoromethyl, or C1-C6 straight or branched low alkoxy group; and X is oxygen or sulfur atom.
Patent KR-20020002582-A (KR)
Inventor: BAE JEONG SU
IPC: B60H1/00
Filed: 2000-06-30
Abstract: PURPOSE: An inlet/outlet pipe fixing apparatus is provided to simplify manufacturing procedures and improve productivity and quality by allowing the inlet/outlet pipe to be braze-coupled integrally to the evaporator body during braze-coupling of the evaporator body. CONSTITUTION: An evaporator includes a tube plate(21) stacked into a layer so as to form a refrigerant flow channel, a center portion interposed between tube plates so as to improve a heat exchange property, and a side plate(23) disposed at the top and bottom of the evaporator so as to protect the tube plate. The side plate has an inlet pipe(24) and an outlet pipe(25) which are coupled to the side plate so as to supply or discharge refrigerant. The side plate positioned at the top of the tube plate, has a connection port(30) formed integrally with the side plate so as to be coupled with the inlet and outlet pipes. The connection port has a clad sheet(31) which is inserted into the connection port so as to braze-couple the inlet and outlet pipes to the main body of the evaporator.
Patent KR-20010015259-A (KR)
Title: Diversity antenna system and mobile communication terminal
Inventor: YOKOKI KIYOTADA
IPC: H04B1/38
Filed: 2000-07-10
Abstract: PURPOSE: A diversity antenna system and a mobile communication terminal and provided to safely achieve the home communication between an upstair and a down stair by judging a reception level and selecting a suitable antenna. CONSTITUTION: The antenna system includes a plurality of antennas having a radiation pattern that takes into account communication in a three-dimensional space and selection means that select an optimum antenna on the basis of reception strength information obtained from each of a plurality of the antennas. The antennas have an antenna conductor(31) whose diameter corresponding to the radiation frequency on an upper surface of an insulating substrate(30), and a ground conductor(32) on a lower surface of the insulating substrate(30).
Patent KR-20020006752-A (KR)
Title: A shopping mall management system synchronous internet communication
Inventor: BAEK SEUNG PIL
Filed: 2000-07-13
Abstract: PURPOSE: An operating method of a shopping mall connected to the Internet is provided to enable a user to buy an article with a reserve obtained by listening to Internet advertisements without using cash or any credit card. CONSTITUTION: A shopping mall manager provides mileage form of earnings when a client accessing a service providing server and sees Internet advertisements(S1). The mileage data are converted into a client DB(DataBase) in an Internet bank system(S2). The cash balance data of the client are converted. The client buys an articles in a shopping mall with the converted money(S3). The article is a product of a general company or a used product of an individual. An operating system of the shopping mall authenticates the client and provides the clicked articles by recognizing the client data changes in a mileage point converting process or an EC(Electronic Commerce) process in real time of 24 hours(S4).