baber/WOPTO huggingface dataset:
Patent KR-20000004191-A (KR)
Title: Align key for manufacturing semiconductor devices
Inventor: YUN IN SOO
IPC: H01L21/027
Filed: 1998-06-30
Abstract: PURPOSE: An align key for manufacturing semiconductor devices is provided to exactly and easily achieve an alignment of center point(Cp) between a first align mark and a second align mark by using improved structure of align marks. CONSTITUTION: The align mark structure comprises: a first align mask(22) having diamond shaped frame structure having diamond shaped through hole formed on a photomask(20); and a second align mark(202) having diamond structure designed by small size compared of the through hole to align inner the through hole and formed on a wafer(200) located at opposite direction of the photomask(20). The first and the second align marks(22,202) are made of chrome(Cr).
Patent KR-20000007205-A (KR)
Title: Structure to reduce inhale loss of impeller for turbo compressor
Inventor: LEE SEUNG PYO
IPC: F04D29/38
Filed: 1998-07-01
Abstract: PURPOSE: A structure is provided to remarkably reduce the loss of inhaling of the inhaled coolant gas and to easily manage the difference of the gap between an impeller and a shroud. CONSTITUTION: The structure comprises:an impeller(100,200) installed on a first and a second compressing chamber installed on both sides of a sealed container and on both ends of the drive shaft rotated by a motor, and installed to be symmetrical by a cone centering the drive shaft according to the inhaling direction of the coolant gas inhaled to each compressing chamber.
Patent KR-19990013568-A (KR)
IPC: C01B21/04
Filed: 1998-07-03
Abstract: Purifying a gas flow of at least one of the impurities it carries comprises subjecting the gas flow to at least one of the following stages: (a) compressing the gas flow to a pressure greater than atmospheric; (b) placing in contact with at least a first bed of particles of a material containing at least one metal peroxide; and (c) contacting the gas flow from (b) with at least a second bed of at least one catalyst. Also claimed is an apparatus for carrying out the above process, comprising a device for compressing the gas, at least one catalytic zone containing the first and second beds, with the first bed upstream of the second, and at least one purification zone to eliminate the oxidised impurities or residues.
Patent KR-19990014006-A (KR)
Title: 반도체장치 및 그 제조방법
IPC: H01L29/51
Filed: 1998-07-15
Abstract: 본 발명은 반도체 장치 및 그 제조방법에 관한 것으로서, 반도체 장치는 반도체 기판과, 상기 반도체 기판상에 형성된 제 1 절연막과, 상기 제 1 절연막상에 형성된 전극을 구비하고, 상기 제 1 절연막이 실리콘과 질소, 실리콘과 산소와 질소의 어느 조합과 할로겐 원소를 포함하고 구성되고, 상기 제 1 절연막중의 상기 할로겐 원소의 최대 원소농도가 10 20 개/㎤ 이상이고 10 21 개/㎤ 이하가 되며, 이것에 의해 절연막의 절연파괴 내성 등이 향상되고, 절연막의 신뢰성이 높아지는 것을 특징으로 한다.
Patent KR-20000010128-A (KR)
Title: Hard disk(hdd) cooling apparatus
Inventor: GU JUNG HO
IPC: H05K7/20
Filed: 1998-07-30
Abstract: PURPOSE: A hard disk(HDD) cooling apparatus emits heat generated in a hard disk by using a forced convection to the outside, enhances an inner flow of an entire computer system, reduces an inner temperature of a computer, and achieves a stable computer system. CONSTITUTION: The hard disk cooling apparatus includes air flowing part and a power provider. The air flowing part emits heat generated in a hard disk by using air flowing hole(10a) formed to one side of a case(11) of computer hard disk. The provider provides a power to the air flowing part(10a). Thereby, the hard disk(HDD) cooling apparatus enhances an inner flow of an entire computer system, reduces an inner temperature of a computer, and achieves a stable computer system.
Patent KR-20000013540-A (KR)
Title: Manufacturing method and device of assembly type tile block
Inventor: YANG YOUNG BONG
IPC: B28B3/10
Filed: 1998-08-10
Abstract: PURPOSE: A manufacturing method and a device for an assembly type tile block is provided to improve the productivity of the tile block and to supply products in a better quality at a cheap cost. CONSTITUTION: The assembly type tile block includes the steps of: loading plural cartridges (1) installed with a tile(11) inside to automatically and sequentially lift; moving the sequentially lifted cartridge onto a vibration plate(5) and forming a space on the upper side of the vibration plate by horizontally facing and moving a shape frame(6) forward; pressurizing the vibration plate with an oil press while vibrating the vibration plate in a state that a material is put into the shape frame; horizontally returning the shape frame to break the shape frame; pushing the molding product on a roller conveyer(9) with a moving instrument(4) and at the same time placing a new cartridge on the vibration plate.
Patent KR-20000018990-A (KR)
Title: Image display screen and fabricating method thereof
Inventor: CHOI DONG JU
IPC: G03B21/56
Filed: 1998-09-05
Abstract: PURPOSE: An image display screen is provided to achieve excellent reflection brightness, viewing angle, and color expressing capability and simplify manufacturing. CONSTITUTION: An image display screen comprises a first coating layer(3), a second coating layer(4), and a third coating layer(5) which are sequentially formed on a mat(2) for a tent. The first coating layer(3) is formed by mixing transparent ink of about 0.5 gram with lacquer thinner of about 20 gram. The second coating layer(4) is formed by mixing silver powder of about 0.5 litter and sanding paint of about 80 gram with the lacquer thinner of about 0.5 gram. After a transparent state is maintained by solving styrofoam with the lacquer thinner of about 0.5 litter on the second coating layer(4), the third coating layer(5) is formed by diluting extinction agent of about 0.5 gram, the sanding paint of about 1 gram, the lacquer thinner of about 0.5 litter with the styrofoam solvent.
Patent KR-19990029615-A (KR)
Title: 유리모재의 제조방법 및 그 장치
IPC: B01D19/00
Filed: 1998-09-08
Abstract: 본 발명은, 다공질유리모재의 부피밀도에 따라서 탈기시간을 바꿈으로써 고품질의 투명유리모재를 효율좋게 제조하는 방법을 제공하는 것을 과제로 한 것이며, 그 해결수단으로서, 기상합성법에 의해 다공질유리모재를 합성하고, 이 다공질유리모재를 진공 또는 감압분위기에서 가열처리함으로써 투명유리화해서 유리모재를 제조함에 있어서, 상기 다공질유리모재에 흡착 또는 함유되는 가스를 탈기하는 제 1의 공정, 이 제 1의 공정보다도 높고 투명화온도보다 낮은 온도에 의해 임시수축하는 제 2의 공정 및 투명유리화온도에 의해 투명화하는 제 3의 공정으로 이루어지고, 상기 제 1의 공정을 상기 다공질유리모재의 부피밀도에 의해서 탈기시간을 바꾸어서 행하는 것을 특징으로 하는 유리모재의 제조방법을 제공하는 것이다.
Patent KR-20000020677-A (KR)
Title: Method for controlling lighting over wide area of building control system
Inventor: LEE JAE IK
IPC: H05B37/02
Filed: 1998-09-23
Abstract: PURPOSE: A method for controlling lighting is provided to carry out a broad area lighting control and to independently operate the control only with lighting control device units regardless of building control units by adding a lighting-control object. CONSTITUTION: A lighting control object for controlling area lighting is established. The object is analyzed when transmitting a broad lighting control order and classified to transmit necessary data to corresponding lighting control device units only. The total object is transmitted to one of the lighting control device units corresponding to ones that the objects to be transmitted. The object corresponding to the lighting control device unit which receives the order is self-operated and the rest is transmitted to other lighting control device units on communication lines to be operated.
Patent KR-20000026646-A (KR)
Title: Construction of conceptual drawing using hyper-link information of web document and internet searching method through conceptual drawing
Inventor: KIM KI TAE
IPC: G06F17/30
Filed: 1998-10-22
Abstract: PURPOSE: A construction of conceptual drawing using hyper-link information of web document and internet searching method through conceptual drawing is provided to quickly and accurately search desired information of a user by detecting a keyword wrote in a web document and composing a conceptual drawing having core words related to a query inputted by the user. CONSTITUTION: A keyword detecting unit visits web documents and detects a keyword included in web documents, and stores a content of the keyword to a first memory. An indexer reads keywords stored in the first and a content regarding the keyword, classifies read keywords and the content by a word of the keyword, and stores the classified information to a second. A web server transmits inputted query to a query processing unit and requests a conceptual drawing related to the inputted query when a user inputs the queries using a user.
Patent KR-20000026668-A (KR)
Title: Process for the preparation of 2-phenyl alkanoic acid
Inventor: KIM DAE HWANG
IPC: C07C57/30
Filed: 1998-10-22
Abstract: PURPOSE: 2-phenyl alkanoic acid are prepared from 5,6-dihydro-2(4H)-benzofuranone in the presence of organic acid metal salt catalyst. CONSTITUTION: 5,6-Dihydro-2(4H)-benzofuranone of formula 2(R1 is H, C1-C6 alkyl, phenyl, benzoyl, phenoxy, furoyl or thenoyl; R2 is H, C1-C6 alkyl or phenyl; R3 is H, C1-C6 alkyl, phenyl, pyridyl, naphthyl or thiophenyl group) is reacted at 150-250°C in the presence of 0.01-5 equivalent weight of organic metal salt such as R-CO2M(R is H, C1-C13 alkyl, C1-C13 alkene, C1-C13 alkyne, C1-C13 alkoxyalkyl, C3-C6 cycloalkyl or A-(CH2)n; A is aryl group such as phenyl, naphthyl, pyridyl, quinolyl and thiophenyl group; n= 0-4; Mis alkali metal atom or under the structure) to give 2-phenyl alkanoic acid of formula 1.
Patent KR-19990037374-A (KR)
Title: 연마방법
IPC: H01L21/321
Filed: 1998-10-26
Abstract: 반도체장치의 배선공정에 있어서의 연마방법에 관한 것으로서, 매립배선형성시의 디싱이나 이로전의 발생의 억제, 긁힘의 저감, 박리 등의 손상의 저감, CMP후세정의 간소화, 연마액과 연마포의 비용저감, 연마제 공급/처리설비의 간소화, 고스루풋화(고제조능률화), 저발진화의 적어도 한가지를 실현할 수 있는 연마방법이나 반도체장치의 제조방법을 제공하기 위한 것으로서, 금속막의 적어도 일부를 제거하는 연마방법에 있어서, 1중량% 미만의 연마숫돌입자를 포함하고 pH 및 산화환원전위가 금속막의 부식영역인 연마액을 사용해서 금속막표면을 기계적으로 마찰시키는 구성으로 하였다. 
     이렇게 하는 것에 의해, 긁힘이나 박리, 디싱, 이로전을 억제하는 효과가 있고 또한 고도의 세정프로세스나 연마제 공급/처리장치를 필요로 하지 않고 연마제나 연마포 등의 소모품의 비용을 억제하고 또한 실용적인 연마속도로 CMP를 실행하는 것이 가능하다는 효과가 얻어진다.
Patent KR-20000027629-A (KR)
Title: Semiconductor device with silicon-on-insulator structure and method for manufacturing the same
Inventor: CHOE KYUNG SEOK
IPC: H01L27/12
Filed: 1998-10-28
Abstract: PURPOSE: A semiconductor device with a silicon-on-insulator structure and a method for manufacturing the same are provided to improve reliability of the device by minimizing resistance of a field region and a thickness of a source/drain junction region. CONSTITUTION: In a method for manufacturing a semiconductor device with a silicon -on-insulator structure, a trench(27) is first formed by etching an insulating layer and a silicon substrate(11) to a predetermined depth on a crystal silicon layer(13) of a silicon-on-insulator substrate(11), then a conductive layer is deposited. The conductive layer except for a portion corresponding to the trench is etched. The conductive layer is etched to a portion higher than the insulating layer. An upper insulating layer(12) is deposited and etched except for a portion corresponding to the trench(27) remains.
Patent KR-20000033097-A (KR)
Title: Trolley for transferring boat
Inventor: RYU CHOON OK
IPC: H01L21/68
Filed: 1998-11-19
Abstract: PURPOSE: A trolley for transferring a boat is provided to reduce damage due to abrasion of material, and to accurately provide wafers into a diffusion furnace so that efficiency of a diffusion process is improved. CONSTITUTION: A trolley for transferring a boat comprises an upper plate(130), a body(140) and an elevator(150). The upper plate(130) haves a bed-stage(120) in which a boat(110) is loaded. Wafers are loaded into the boat(110). The body(140) under the upper plate(130) supports the upper plate(130). The elevator(150) elevates the upper plate(130). Here, the body(140) haves protrusion guides(142) which are vertically protruded along the transferring direction of the boat(110). Also, the upper plate(130) includes guide holes(132) corresponding to the protrusion guides(142). The upper plate(130) elevates along the protrusion guides(142) by the elevator(150).
Patent KR-19990062936-A (KR)
Title: 컬러프린터
IPC: G03G15/01
Filed: 1998-12-09
Abstract: 컬러프린터를 박형화한다. 
     필름팩(2)은 적층된 필름(3)과 수납체(4)로 이루어진다. 팩(2)의 인출구(5)의 근방에는 반송롤러(6)가 있다. 반송롤러(6) 옆에는 노광헤드(7)가 있다.  노광헤드(7)는 팩(2)의 두께 범위내에 수납된다. 노광헤드(7)에는 다수의 발광도트를 갖는 형광프린트헤드(8)와 RGB의 각 색으로 전환가능한 필터(9)가 있다.  노광헤드(7)는 필름(3)의 반송방향에 따라 왕복이동을 할 수 있다. 케이싱의 출구에는 현상롤러(12)가 있다. 반송롤러(6)가 필름을 인출하고, 노광헤드(7)가 기록한다. 필터(9)를 전환하여 3회 행한다.  기록된 필름(3)은 현상롤러(12)에 끼워지도록 반송되고, 현상되어 케이싱(13)밖으로 송출된다.  노광헤드를 필름팩 아래에 배치한 종래에 비하여 장치전체의 두께가 필름팩(2)의 두께를 크게 초과하지 않고 박형화가 실현되었다.
Patent KR-20000042573-A (KR)
Title: Method for recording of vcr
Inventor: KWON TAE HUN
IPC: G11B20/10
Filed: 1998-12-26
Abstract: PURPOSE: A recording method of VCR is provided to continuously record when a key to stop the recording is pushed again within a certain time though a user pushes the key as a mistake during recording. CONSTITUTION: A control unit stores information in a memory by feeding when a user inputs a reserving information to perform a reserved recording. The control unit starts the recording by driving a deck when the user inputs a recording key. When the user inputs a key to stop the recording as a mistake or to finish the recording during recording, the control unit flickers an alarming light of a display unit or outputs an acoustic message to inform the stop of recording. Thereby, to stop of recording is alarmed to the user. When the user inputs the key to stop the recording again within a certain time to finish the recording, the control unit finishes the recording by stopping the driving of deck. However, the control unit continues the recording by continuously driving the deck when the user does not input the key to stop the recording.
Patent KR-20000043467-A (KR)
Title: Micro-strip line structure in base station of wireless local loop(wll) system using pattern change
Inventor: SONG KI JAE
IPC: H04B7/26
Filed: 1998-12-29
Abstract: PURPOSE: A micro-strip line structure in a base station of a wireless local loop(WLL) system using a pattern change is provided to improve an impedance matching of an up-converter card(UCC) by changing a pattern of the micro-strip line. CONSTITUTION: A micro-strip line(20) installed on a PCB(10) is formed at a uniform thickness(w), and a slit portion(15) having a uniform distance(a) and width(b) is formed in the center of the micro-strip line(20). An ACSU(analog common and sector unit) is connected to an input terminal of a UCC(up-converter card) through the micro-strip line(20), and a HPA(high power amplifier) is connected to an output terminal of the UCC. The micro-strip line(20) changes values of the distance(a) and the width(b) of the slit portion(15) for changing an inductance value.
Patent KR-20000043872-A (KR)
Title: Method for testing defect of steel
Inventor: CHOI JU
IPC: G01N29/04
Filed: 1998-12-29
Abstract: PURPOSE: A testing method of defect of steel is provided to detect defect existed in a mold piece or steel by a non-destructive method promptly and to decide the sort of defect by using a supersonic sensor. CONSTITUTION: To sense defect of steel and a cast piece for continuous casting by using a supersonic sensor having vibration frequency less than 100MHz, supersonic wave is injected to the steel and cast piece by using a supersonic sensor and dividing the sort of defect to an interposed material and a hole according to the phase of the wave reflected from the steel and cast piece. The method of detection using a supersonic sensor shortens the time for detecting compared to a general microscope. The accuracy of detection is more excellent than a general method using supersonic waves.
Patent KR-20000043975-A (KR)
Title: Transistor and fabrication method thereof
Inventor: SEO MUN SIK
IPC: H01L29/68
Filed: 1998-12-29
Abstract: PURPOSE: A transistor and a fabrication method thereof are provided to facilitate a control of refresh time and to improve reliability. CONSTITUTION: A fabrication of a transistor begins with the implantation of boron into a semiconductor substrate(31) to control a threshold voltage. A gate oxide(33) is then grown and a first polysilicon layer is formed. A gate(34) is formed by a selective etching of the polysilicon layer and the oxide(33). An intrinsic layer(35) is then formed in the substrate(31) by phosphorous ion implantation using the gate(34) as a mask. Next, a nitride sidewall(36a) is formed by etch back of a nitride layer and a high temperature low deposition(HLD) layer. Also, a second polysilicon sidewall(38) is then formed to electrically connect with the gate(34). Next, a second HLD layer(39) is formed on overall surfaces, and source/drain regions(40) are formed in the substrate(31). The source/drain regions(40) is therefore out of contact with the boron-doped area underneath the gate(34) due to the intrinsic layer(35), and thereby it becomes easy to control a refresh time of DRAM.
Patent KR-20000044454-A (KR)
Title: Alarm method according to bit error rate in data communication of personal communication service(pcs)
Inventor: HWANG HYO HYEON
IPC: H04B1/38
Filed: 1998-12-30
Abstract: PURPOSE: An alarm method according to a bit error rate in a data communication of a personal communication service(PCS), is provided to display a communication quality of a data communication and inform a deterioration of a communication quality. CONSTITUTION: An alarm method according to a bit error rate in a data communication of a personal communication service(PCS), comprises the steps of: checking whether the PCS is under a data communication(a first step); checking a bit error rate in a case of a data communication(a second step); performing an alarm function when the bit error rate is under a predetermined value(a third step); returning to the second step when a speech line is not cut off(a fourth step). And the method further comprises the step of displaying the checked bit error rate corresponding to the checked and measured value after the second step.
Patent KR-19990044609-A (KR)
Title: Process for producing d-pantoic acid and d-pantothenic acid or salts thereof
Inventor: MORIYA TAKEO
IPC: C12P13/02
Filed: 1996-09-11
Abstract: PCT No. PCT/JP96/02585 Sec. 371 Date Jan. 8, 1997 Sec. 102(e) Date Jan. 8, 1997 PCT Filed Sep. 11, 1996 PCT Pub. No. WO97/10340 PCT Pub. Date Mar. 20, 1997There is disclosed a process for producing D-pantoic acid or D-pantothenic acid utilizing the capability of the microorganism to synthesize D-pantoic acid or D-pantothenic acid. According to this process, (a) D-pantoic acid is biosynthesized from various carbon sources such as glucose to accumulate it in the culture medium, or (b)  beta -alanine is contacted with the microorganism by, for example, adding  beta -alanine to the culture medium, to cause condensation of the biosynthesized D-pantoic acid with  beta -alanine to accumulate D-pantothenic acid in the medium.
Patent KR-19990064082-A (KR)
Title: 인자기
IPC: B41K1/00
Filed: 1997-08-06
Abstract: 인자용 엔들리스 밴드(7)의 회전을 제한함에 있어서, 인자용 엔들리스 밴드(7) 자체에 과대한 회전력이 작용하지 않도록 하여 마모나 균열 등의 손상을 회피하고, 인자용 엔들리스 밴드(7)를 무리하게 회전시키려 하였을 때에 선택휠(5)을 공회전시켜, 인자용 엔들리스 밴드(7)에는 그다지 부하가 걸리지 않도록 한 인자기를 제공하는 것을 목적으로 한다.  선택휠(5)의 회전을 규제하는 부재를 가동타입으로 하고, 선택휠(5) 내지 인자용 엔들리스 밴드(7)에 과대한 힘이 작용하였을 경우, 가동스토퍼부재(14)를 이동시키는 것에 착안한 것으로, 가동스토퍼부재(14)의 탄성부(14B)에 맞닿음되는 스토퍼인수부재(15)를 설치하고, 인자용 엔들리스 밴드(7)의 이동에 따르는 구동용 돌기부(7E)와 탄성부(14B)의 걸어맞춤에 의하여, 가동스토퍼부재(14)를 이동가능하게 하였다.
Patent KR-19990067042-A (KR)
Title: 스프레드 스펙트럼 신호에서의 간섭 억제 방법및 장치
IPC: H04B1/71
Filed: 1996-09-20
Abstract: 스프레드 스펙트럼 신호 내의 간섭 제거는 스프레드 스펙트럼 송신기(10)에서 반복 잡음 시퀀스(18)를 위상 변조함으로써 선정된 스펙트럼을 통해 정보를 스프레드하는 단계, 스프레드 스펙트럼 신호를 제공하는 단계 및 스프레드 스펙트럼 신호를 전송하는 단계를 포함한다.  본 방법은 수신기에서 간섭을 갖는 스프레드 스펙트럼 신호(41)를 수신하는 단계 및 간섭을 갖는 스펙트럼 신호를 배가된 스펙트럼 신호를 제공하는 윈도우 함수(44)와 곱하는 단계(42)를 더 포함한다.  간섭을 갖는 데이터 신호를 얻고 그것을 정규화하여 깨끗한 데이터 스펙트럼을 획득하기 위해, 정보는 반복 잡음 시퀀스 스펙트럼의 역수를 이용하여 배가된(48) 스프레드 스펙트럼 신호를 디스프레드(despread)함으로써 복구된다.  대안적으로, 정보는 오염된 크기 스펙트럼을 수신기(60)로 도시된 것과 같이 미리 저장된 PN 시퀀스 크기 스펙트럼(70)으로 대체함으로써 복구될 수 있다.
Patent KR-19990067117-A (KR)
Title: 로터리 밸브를 위한 슬롯가공된 슬리브
IPC: B23D5/00
Filed: 1996-10-29
Abstract: 부품의 보어에서 길이방향으로 뻗은 평행한 슬롯의 각도적으로 배치된 배열을 가공하기 위한 방법으로서, 이 방법은 제1축에 대하여 인덱스가능한 가공물지지스핀들(3)에 장착된 가공물지지장치(2)를 파지하는 단계; 상기 제1축으로부터 오프셋되고 실제로 직각인 제2축(8)에 대하여 회전가능한 절삭스핀들(7)에 장착된 절삭공구(5)의 일련의 점차 깊어지는 절삭 행정에 의해 상기 보어에서 슬롯의 상기 배열을 절삭하는 단계; 그리고 각각의 슬롯의 절삭에 뒤이어 상기 가공물 지지스핀들(3)의 인덱스 단계로 구성되고, 그리고 상기 슬롯의 적어도 하나의 절삭동안에, 제1축을 따라서 부품(1)의 운동, 상기 제1축에 실제로 평행한 방향으로 제2축의 운동 또는 양자로 인해 부품(1)과 제2축(8)사이의 상대운동이 이루어진다.  슬리브의 보어에 형성된 리턴(27)슬롯과 입구(26) 슬롯의 배열로 구성된 로터리 밸브용 단편의 슬리브(34)로서, 입구 슬롯(26)은 보어의 축방향 끝에 못미쳐 멈추고, 리턴슬롯(27)은 슬리브가 로터리 밸브에 설치될때 리턴 오일을 위한 출구구역을 제공하는 슬리브에 있어서, 적어도 하나의 리턴슬롯은 슬리브가 로터리 밸브에 설치될때 누출 오일을 위한 입구구역(24)을 제공하는 보어의 다른 축방향끝에 뻗어있고 누출오일을 위해 구비된 입구구역(24)은 리턴오일을 위해 구비된 출구구역보다 실제로 더 작은 것을 특징으로 한다.
Patent KR-20000065109-A (KR)
IPC: A61B17/115
Filed: 1996-04-30
Abstract: PCT No. PCT/DK96/00197 Sec. 371 Date Sep. 16, 1998 Sec. 102(e) Date Sep. 16, 1998 PCT Filed Apr. 30, 1996 PCT Pub. No. WO97/40754 PCT Pub. Date Nov. 6, 1997A method and apparatus for establishing an end-to-side anastomosis by using an instrument (501) is disclosed. The instrument has a passage (502D) for a bypass vessel, terminated by a circumferential anvil (502A, 503B), about which the end of the bypass vessel may be everted and then inserted through an anastomosis opening in a second vessel, such as a coronary artery. After insertion, the tissue edges to be joined are first clamped together by clamping slides (505) and then stapled together by stapling plungers (506) so as to interconnect the two vessels. The stapling plungers (506) are arranged to move at an angle to the passage (502D) instead of parallel to it. With this arrangement, it is possible to use a greater number of staples than has been possible in previous related methods. Preferably also, the instrument is adapted to be divided lengthwise of the passage (502D).
Patent KR-20000015984-A (KR)
Title: Recombination of polynucleotide sequences using random or defined primers
Inventor: ARNOLD FRANCES H
IPC: C12N15/09
Filed: 1998-03-25
Abstract: PURPOSE: A recombining method is provided to form a pool of short DNA fragments by priming template poly nucleotide with random-sequences or defined-sequence primers. CONSTITUTION: A method for in vitro mutagenesis and recombination of poly nucleotide sequences based on polymerase-catalyzed extension of primer oligonucleotides is disclosed. The method involves priming template poly nucleotide(s) with random-sequences or defined-sequence primers to generate a pool of short DNA fragments with a low level of point mutations. The DNA fragments are subjected to denaturalization followed by annealing and further enzyme-catalyzed DNA polymerization. This procedure is repeated a sufficient number of times to produce full-length genes which comprise mutants of the original template poly nucleotides. These genes can be further amplified by the polymerase chain reaction and cloned into a vector for expression of the encoded proteins.
Patent KR-20000050982-A (KR)
Inventor: KIM SEON DEOK
IPC: H04N5/74
Filed: 1999-01-16
Abstract: PURPOSE: A cooling apparatus for projection systems is provided to use the temperature of a liquid crystal display and a polarization plate. CONSTITUTION: A cooling apparatus for projection systems includes a 3-sheet liquid crystal display(34) as well as a polarization plate(6). The 3-sheet liquid crystal display(34) is implemented so as to be adjacent to a prism synthesizing images. The polarization plate(6) is implemented on an opposite position of the liquid crystal display and supplies the light of 3 basic lights to the liquid crystal display. The cooling apparatus for projection systems further includes a guide(4) as well as a cooling member(30). The guide(4) confines a region which is closed by being formed in a form of surrounding the image synthesizer. The cooling member(30) cools off the inner portion of the guide by using a peltier theorem. The guide is implemented on one side of the guide..