baber/WOPTO huggingface dataset:
Patent KR-20000042880-A (KR)
Title: Method for fabricating semiconductor device
Inventor: LEE SANG IK
IPC: H01L21/28
Filed: 1998-12-28
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided which can prevent the generation of a poly stringer due to the loss of a nitride barrier film. CONSTITUTION: A method for fabricating a semiconductor device includes the steps of: forming a number of gate electrodes(22) on a semiconductor substrate(21) having a cell region and other regions; forming a spacer(23) on a side wall of the gate electrode; forming a first oxide barrier film(24) and a second nitride barrier film(25) on the whole surface of the semiconductor substrate including the gate electrodes where spacer is formed; forming a doping-resistant film(26) on the second barrier film, and forming an inter level insulation film(27) on the doping-resistant film; polishing the inter level insulation film until the second barrier film part on top of the gate electrode is revealed; forming a photoresist pattern revealing the cell region on the substrate; removing the inter level insulation film and the doping-resistant film remained on the cell region by performing an etching process with the photoresist pattern as an etch barrier; removing the photoresist pattern; removing the second barrier film by performing an etching process with the first barrier film as an etch mask; removing the first barrier film; and forming a contact plug(29) insulating between the gate electrodes. The method can prevent the generation of poly stringer due to the loss of the nitride film, by forming the oxide barrier film before forming the nitride barrier film, and removing the nitride barrier film using the oxide barrier film.
Patent KR-20000044856-A (KR)
Title: Method for fabricating capacitor
Inventor: SHON HYUN CHEOL
IPC: H01L27/108
Filed: 1998-12-30
Abstract: PURPOSE: A method for fabricating a capacitor is provided to stabilize an etch process of a noble metal which is used as an electrode. CONSTITUTION: A method for fabricating a capacitor comprises forming an interlayer insulation film(12) on a semiconductor substrate(11) and selectively etching the interlayer insulation film(12) so as to form a contact hole. A conductive plug(14) is formed in the contact hole, and a noble metal layer(15) is formed on the interlayer insulation film(12) comprising the conductive plug(14). A barrier layer(16) is formed on the noble metal layer(15). The barrier layer(16) is patterned by using a photo-resist pattern for a lower electrode. After removing the photo-resist pattern, an ion implantation is executed by using the barrier layer as a mask. After forming a silicon layer(17) on a resultant structure, an annealing is performed at a temperature below about 400°C, to thereby form a noble metal-silicide layer(15A). A capacitor lower electrode is formed by removing the noble metal-silicide layer(15A) and the barrier layer(16).
Patent KR-20000045452-A (KR)
Title: Method for forming dual damascene of semiconductor device
Inventor: LEE SEUNG WOOK
IPC: H01L21/28
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming dual damascene of a semiconductor device is provided to dual damascene by using a contact etch process and a line/space etch process. CONSTITUTION: A method for forming dual damascene of a semiconductor device comprises the following steps. A first oxide layer and a silicon oxynitride layer are formed sequentially on an upper portion of a semiconductor substrate formed with a contact plug for bit line and storage node. A bit line contact mask is formed on the silicon oxynitride layer. Bit line contact patterns are defined by removing selectively the silicon oxynitride layer. The bit line contact mask is removed. A second oxide layer is formed the exposed upper portion of the whole structure. A bit line damascene mask is formed thereon. A line/space pattern and a bit line contact pattern are formed simultaneously by removing the first oxide layer.
Patent KR-20000045454-A (KR)
Title: Method for forming test pattern structure of semiconductor device
Inventor: CHOI HYUNG SEOK
IPC: H01L21/66
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming a test pattern structure of a semiconductor device is provided to improve the productivity of the semiconductor device by monitoring the shift of a line pattern in an early stage. CONSTITUTION: A lower fixing layer pattern(2) which is made of a first polysilicon layer is formed on a lower oxide layer(1). After a BPSG film(3) is deposited on the structure, a contact(4) for connecting to the lower fixing layer pattern(2) is formed by selectively removing the BPSG film(3). Then, a contact plug making contact with the lower fixing layer pattern(2) is formed in the contact(4). A second polysilicon layer is then formed on the structure. By selectively patterning the second polysilicon layer, an upper shifting pattern(7) and an upper monitoring pattern(6) are formed.
Patent KR-20000045883-A (KR)
Title: Method for forming device isolation layer of semiconductor device
Inventor: LEE CHANG JIN
IPC: H01L21/76
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming a device isolation layer of a semiconductor device is provided to nitride the pad oxide layer and the trenched substrate in order to improve device characteristics. CONSTITUTION: A method for forming a device isolation layer of a semiconductor device includes following steps. At the first step, a pad oxide layer(20) and a nitride layer(30) are vaporized on a substrate(10). At the second step, a trench(40) is formed on the substrate(10). At the third step, another oxide layer is formed to fill the trench. At the fourth step, the front surface of the trench is nitride. The nitride layer is grown using a SiH<SB POS="POST">2</SB>Cl<SB POS="POST">2</SB> and NH<SB POS="POST">3</SB> gases under the temperature in the range of 750-850°C and the pressure in the range of 0.3-0.35Torr. The nitride layer is grown to a thickness of 1000-1500 plus 10¬-10 meters.
Patent KR-20000046705-A (KR)
Title: Method for commercial cad foundation's customization
Inventor: HONG TAE HWA
IPC: G06F17/00
Filed: 1998-12-31
Abstract: PURPOSE: A method for commercial CAD foundation's customization is disclosed to simplify the use of CAD by enabling the user to organize the menu according to his environment which is separate from complex menu provided while using two and three dimensional CAD. CONSTITUTION: A method for commercial CAD foundation's customization is composed of investigation, registration, arrangement, and selection. A user investigates frequently used menus from CAD system(S101) and the investigated menus are grouped according to their functions or to its usage processes(S102). Functional main menus are registered(S103) and registered menu's palettes are automatically created according to its systems and processes(S104). Icons and images to be registered are arranged and registered(S105,S106), selected image files are automatically summoned and selected as icon(S107), and a menu registration is completed. When the user clicks the icon to use the menu, designated command is sent to CAD software department(10) and CAD software department processes appropriate function in accordance to the delivered command.
Patent KR-20000047232-A (KR)
Title: Method to limit communication using limiting timing in multimedia satellite communication system
Inventor: KIM SUN HEE
IPC: G06F13/00
Filed: 1998-12-31
Abstract: PURPOSE: If a limiting timing in a multimedia satellite communication system is provided to limit the communication, the satellite resources are used efficiently. CONSTITUTION: When a central station allocates a PID for control, a PID for traffic, a CDMA code, and a channel frequency signal to a terminal of a member of a set-top box which requested an access, the timer begins to work. After a specific time, that is, the time between the moment that the access is requested and the moment that the information change is completed, the mean time for communication of all the set-top box is calculated. When the mean time has passed, it is checked whether the set-top box transmits data or not. If there are not the transmitted data, the satellite resource is canceled. As the central station of the multimedia satellite communication system uses the limiting timing, it is prevented that the satellite resource is allocated to the terminal station which doesn't communicate.
Patent KR-19990036275-A (KR)
Title: 아자-안트라사이클리논 유도체
IPC: C07D451/04
Filed: 1996-07-23
Abstract: 본 발명은 유전분체의 치료에 유용한 화학식 1의 화합물에 관한 것이다.  본 발명에는 또한 이들의 제조방법 및 이들을 포함하는 약제학적 조성물도 기술되어 있다. 
     화학식 1 
     
       
     
     상기 화학식 1에서, 
     X 1 및 X 2 는 C=O, C=NH 또는 CH 2 이고, 
     X 3 은 CH 2 , CO, CHOH, 화학식 (III), (IV)[여기서, n은 2 또는 3이다] 또는 C=N(R 9 )(여기서, R 9 는 하이드록시 또는 아미노-아릴이다)이며, 
     R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 및 R 8 은 각각 수소, 할로겐 또는 유기 잔기이다.
Patent KR-20000064251-A (KR)
Title: 백업 스위칭을 갖는 이중 송신기 장치
IPC: H04B1/04
Filed: 1997-07-09
Abstract: 다중-채널 시스템의 신뢰가능한 전송은 불완전하게 동작하거나 또는 작동하지 않는 송신기로부터의 신호 입력을 다른 채널 송신을 지속하는 또다른 송신기로 전달함으로써 달성된다.  적어도 두 개의 송신기가 정상적으로 작동하며, 이들 각각은 그 자신의 채널 블록을 전송한다.  감지기는 한 송신기의 출력이 부적당한지 또는 존재하지 않는지를 검출하며, 전환 스위치를 동작시킨다.  스위치의 동작은 한 송신기로부터 다른 송신기(하나 이상)로 유입된 채널의 블록을 부가하여, 남아있는 하나 이상의 송신기가 모든 채널을 제공한다.
Patent KR-19990076725-A (KR)
IPC: E21B19/02
Filed: 1996-12-23
Abstract: PCT No. PCT/NO96/00310 Sec. 371 Date Jun. 24, 1998 Sec. 102(e) Date Jun. 24, 1998 PCT Filed Dec. 23, 1996 PCT Pub. No. WO97/24507 PCT Pub. Date Jul. 10, 1997An apparatus for a derrick, comprising two or more hydraulic piston-cylinder arrangements (10, 11) for raising and lowering a yoke (8) which travels on guide rails (7) in the derrick (1) itself, where two or more wire lines (13) are strung over sheaves (12) rotatably attached to the yoke. The wire lines (13) are attached at one end thereof to the top drive (9) and at the other end thereof are secured to an attachment point (14a, 14b) adjacent to a drill floor (2), said two or more wire lines being run in two sets (13a, 13b) of lines. The attachment points (14a, 14b) for each wire set are connected to a tension equalizer assembly to equalize differences in tension in the wire lines.
Patent KR-19990082444-A (KR)
Title: 에어컨용스냅끼워맞춤필터
IPC: F24F1/02
Filed: 1996-12-11
Abstract: 에어컨 유니트용 실내 그릴에는 대체적으로 직사각형인 필터 요소가 설치되는 수평 슬롯이 제공된다.  필터 수납 슬롯에는 필터의 수평 연장 구조부 상에 결합 구조물을 래치 결합하도록 된 래치 구조물이 제공되어서, 그릴 조립체에 설치될 때 소망하는 위치에 필터를 래치 결합하고 보유하도록 한다.  래치 구조물은 그릴에서 필터를 용이하게 후퇴하도록 수동으로 해제 가능하다.  래치 구조물은 또한 그릴이 뒤집어졌을 때 중력의 영향으로 슬롯 밖으로 필터가 떨어지는 것을 방지하는 역할을 하기도 한다.
Patent KR-20000064679-A (KR)
Title: Dram내장데이타처리장치
IPC: G06F11/22
Filed: 1996-03-21
Abstract: 본 발명은 퍼스널컴퓨터 또는 오락기기 등의 고속그래픽처리를 실현하는 구조에 도입가능한 것으로서, 화상처리장치의 묘화성능을 높히기 위해 프레임버퍼와 커맨드용 메모리와 화상용 프로세서를 1칩에 내장한 경우, 화상처리장치에 테스트단자, 테스트버스를 마련하고, 각 메모리모듈에 각각 테스트포트를 마련하고 공통의 테스트버스에 접속하는 것에 의해, 테스트시에 각 내장메모리모듈의 내용을 외부에서 감시한다.     이것에 의해, 메모리모듈의 시험에 종래의 테스트방법을 그대로 사용할 수 있다.
Patent KR-20000004984-A (KR)
Title: Canionic polymeric composition applicable by electrostatic aid
Inventor: EVERATZ ALBERT I
IPC: C09J7/22
Filed: 1996-07-09
Abstract: PURPOSE: Thin coating can be applied by a continuous liquid coating technique, but the composition is generally diluted with large volume of solvent and the solvent is evaporated leaving composition of certain thickness afterward. At this time, the uniformity and the thickness of a final layer are difficult to be controlled on the rough surface, and material cost, production cost and solvent removing cost due to the added solvent are intensified. Also used solvent is harmful to the environment. CONSTITUTION: Compositions containing conductivity enhancing agent can be coated on a support by electrostatic aid. The compositions contain 1 or more free radical cationic polymeric monomer, 1 or more cationic initiator and cationic and anionic parts which are soluble and do not prevent cationic polymerization reaction in the monomer. The anionic part further comprises 1 or more non-volatile conductivity enhancing agent which is non-coordinate carbon-containing anion. The composition further comprises 1 or more dissociation enhancing agent, an oligomer, or a polymer, preferably a coreactive and free radical hardening monomer, a free radical producing initiator, a level dyeing agent, and other additive or auxiliary agent, thus provides specific properties to polymerized composition.
Patent KR-20000064854-A (KR)
Title: 어댑티브어레이송수신기
IPC: H04B7/06
Filed: 1998-06-02
Abstract: 복수의 안테나(11 1 내지 11 Q )로부터의 수신 기저대역신호에 대하여, 가중값을 승산하여 선형합성되고, 판정신호를 1기호지연시켜, 이에 귀환형필터계수(w b   * )를 승산하여, 부호간 간섭을 생성하고, 이것을 선형합성출력 y(i)에서 공제하고, 그 출력을 부호판정하여 출력하고, 판정기(17)의 입력과 판정신호와의 차의 오차신호(e(i))를 얻어, 이 오차신호(e(i))의 2승이 최소로 되도록 가중값계수(w 1   * 내지 w Q   * ) 및 귀환형 필터계수(w b   * )를 파라미터 추정부(71)에서 추정한다.  송신측에서는 송신신호를 1T지연시켜 w b   * 을 승산하고, 부호간 간섭을 송신신호로부터 감산하여 변형을 부여하고 그 출력에 w 1   * 내지 w 4   * 를 각각 승산하여 안테나 11 1 내지 11 4 에의 송신 기저대역을 만든다.
Patent KR-20000005279-A (KR)
Title: Damping force generator
Inventor: MASAMURA DASUYA
IPC: F16F9/348
Filed: 1997-04-09
Abstract: PURPOSE: A damping force generator used in a suspension of a car is provided to protect a valve for generating the damping force from the increased pressure in the damper and to improve the durability and the reliability. CONSTITUTION: The damping force generator includes:a valve sheet(31) having its base attach a main tubular valve(41), a substrate(43), an auxiliary tubular valve(42) and a spacer(44) in order; a flange(36C) supporting the lower area of the spacer(44) to the end part of a large diameter unit(36B); an annular sheet(31) placed between an outer penetrating slot(32) and an inner penetrating slot(33), connected with the outer circumference of the main tubular valve(41); an opening(41A) formed on the main tubular valve(41) and closed from the lower area by the auxiliary tubular valve(42); and an oil chamber(9) flowing out the acting oil to a tanker(10).
Patent KR-20000016207-A (KR)
Title: Process for controlling continously variable transmission system (cvt)
Inventor: BACHER HOLGER
IPC: B60W30/18
Filed: 1997-05-28
Abstract: PURPOSE: Process for controlling CVT is provided to prevent engine stall at idles by skid of CVT on the occurrence a interlock brake or ABS, and prevent belt slip. CONSTITUTION: Process for controlling CVT of the bevel pulley belt type in which, on the occurrence of a wheel locking drive situation, converter overbridging clutch is disengaged and at the same time a forward or reverse drive clutch is disengaged. The pressure level of the secondary pulley (3) is hereby raised and the transmission ratio of the CVT is changed in accordance with a predeterminable transmission ratio change and a predeterminable gradient.
Patent KR-20000050723-A (KR)
Inventor: JEONG HAE WON
IPC: H05K3/46
Filed: 1999-01-14
Abstract: PURPOSE: A fabrication method of a multi-layered PCB(Printed circuit board) is to make a multi-layered PCB to be thinner and miniaturized and to make a product without using of V-cut penetration and cutting process. CONSTITUTION: A fabrication method of a multi-layered PCB comprises the steps of: forming a non-conductive pattern having a burr hole(12a) using an insulator resin of liquid phase on a removable substrate(10); depositing a conductive film including the burr hole on the resultant substrate; patterning the conductive film to form a conductive pattern(14) including a first conductive pattern filling the burr hole; repeating the forming steps of the non-conductive pattern and the conductive pattern; and removing the removable substrate. The removable substrate is soluble in water or other etchant.
Patent KR-20000055460-A (KR)
Inventor: KWON O DAL
IPC: G02B6/42
Filed: 1999-02-06
Abstract: PURPOSE: An alignment apparatus for a light source and an optical fiber, and a light source module having the apparatus are provided to minimize an aligning aberration by reducing a thermal deformation. CONSTITUTION: An alignment apparatus includes a light source mounted on a substrate, an optical fiber(306) aligned to receive the light emitted from the light source, a holder(308) supporting the optical fiber(306), and a fixing assembly(310) supporting the holder(308). In particular, the fixing assembly(310) includes a pair of base members(311) mounted on the substrate with a spacing enough to receive the holder(308), a supporting member(312) integrated with the base members(311) at both ends and supporting the holder(308), protrusion members(313) protruded from the both ends of the supporting member(312) in the direction parallel to the optical fiber(306), and coupling members(314,315) positioned at the ends of the protrusion members(313) and coupling the protrusion members(313) and the holder(308) together. When the coupling members(314,315) are welded to the holder(308), a thermal deformation occurs in the only direction of z-axis but a thermal transmission in the direction of y-axis is intercepted. Therefore, the optical fiber and the light source can be arranged within the allowable alignment margin of error in order to improve the efficiency of optical coupling.
Patent KR-20000056394-A (KR)
Inventor: PARK JEONG GYU
IPC: B32B17/04
Filed: 1999-02-20
Abstract: PURPOSE: A method for producing fire-retardant flooring including a natural korean paper is provided which is natural in texture and excellent in durability and thermal endurance by including the natural korean paper. CONSTITUTION: A method for producing fire-retardant flooring including a natural korean paper is characterized by being comprised of: impregnating or coating the both sides or one side of the natural korean paper with melamine-based heat hardening paint; drying the same in the oven and hardening; drying after attaching the same to the non-woven fabric of glass fiber with glues; and coating the PVC layer with the lower part of the same, drying and gelatinizing.
Patent KR-19990046107-A (KR)
Title: 반도체팩키지스트립및그성형방법
IPC: H01L23/48
Filed: 1999-03-22
Abstract: 스트립을 간단한 공정에 의해 고품질로 성형할 수 있는 새로운 구조의 반도체팩키지 스트립 및 그 성형방법에 관한 것이다. 
     본 발명에 따르면, 반도체팩키지 스트립에 있어서, 펀칭부(11)의 둘레를 따라 상기 리드선(16)과 연결되도록 대칭적으로 배치된 한쌍의 대략 디귿자형상의 커넥션바(20)가  형성된 것을 특징으로 하는 반도체팩키지 스트립이 제공된다. 
     본 발명의 다른 특징에 따르면, 내부에 대략 사각형의 펀칭부(11)가 형성된 리드프레임(10)과, 이 리드프레임(10)의 펀칭부(11) 내에 다수 배치되며 반도체칩이 내장된 팩키지(12)와, 상기 리드프레임(10)과 팩키지(12)를 연결하는 다수의 리드선(16)을 포함하는 반도체팩키지 스트립으로부터 리드선(16)을 절곡성형하고 개별팩키지를 분리하는 방법에 있어서, 상기 펀칭부(11)의 둘레를 따라 상기 리드선(16)과 연결되도록 대략 디귿자형상의 한쌍의 커넥션바(20)를 대칭적으로 미리 형성하여, 상기 리드선(16)의 절곡작업시에 상기 커넥션바(20)에 연결된 다수의 팩키지(12)를 동시에 절곡시키며, 이때, 상기 커넥션바(20)가 상기 다수의 리드선(16)에 연결된 채로 리드선(16)의 변형에 추종하여 회동되도록 하는 것을 특징으로 하는 반도체팩키지 스트립의 성형방법이 제공된다.
Patent KR-19990078196-A (KR)
Title: 화상혼색처리장치
IPC: G06T3/00
Filed: 1999-03-24
Abstract: 반투명 표시 및 확대 표시의 화상 처리에서 승산 계산이 필요하지 않은 화상 혼색 처리 장치를 제공한다. 복수개의 서로 인접하는 화소로 하나의 소영역을 구성한다. 표시 프레임마다에, 그 소영역 중 소정 수의 화소에 배경화상의 화소 데이터, 그 외의 화소에 슈퍼임포징하는 화상의 화소데이터를 순차 표시한다. 종방향으로의 2배의 화상 확대에서는 보간 라인으로서 표시 프레임 마다에 그 상하의 원화상의 화소치를 교대로 선택하여 표시한다.
Patent KR-19990083673-A (KR)
Title: 리사이클식티켓용발매기
Filed: 1999-04-03
Abstract: 본 발명은 리사이클식 티켓용 발매기에 관한 것이다. 
     대형 주차장, 헬스클럽 혹은 여러 가지 회원 입장권이 이용되는 곳에서 발행되는 티켓은 권취된 상태로 구성된 자성체기록형의 권취롤을 일정한 길이로 절단한 다음 자성체에 소정의 기록을 하여 발부하고 있다. 이와 같은 티켓은 일단 발행이 되면 더 이상 재활용이 되지 못하고 폐기되어 버리므로 자원낭비의 문제는 물론 이와같은 장소를 운영하는 자에게는 원가부담의 요인이 되고 있는 것이다. 그외에 써멀프린팅을 이용한 방법이 있으나 재활용을 하지 못하고 역시 폐기되어 오고 있을 뿐이다. 
     본 발명은 써멀프린팅용 티켓을 이용하되 티켓을 적층한 메거진을 이용하여 이용자에게 적층된 티켓을 발행하며, 메거진내에 적층된 티켓이 모두 소모되면 티켓의 액면 기록사항을 열소거후 빈 메거진에 재충전하여 주어 재사용할 수 있게 하였다. 그 결과 1회사용에 머물던 티켓이 수십회내지 수백회 재순환사용되어 원가절감의 효과를 거두도록 하였다. 특히 티켓이 적층된 메거진을 임의로 증가하여 설치할 수 있어 중,소,대형의 다양한 형태의 주차장별로 임의의 용량으로 설치하여 주면서도 기본적인 티켓발매기의 구조에는 변화가 없도록 하였다.
Patent KR-19990068354-A (KR)
Title: 영구자석을이용한동력발생장치
Filed: 1999-04-15
Abstract: 본 발명은 영구자석을 이용한 동력 발생장치에 관한 것이다. 
     본 발명은 베이스(10)와; 동일 극성끼리 마주보는 2개의 막대형 영구자석이 1조 이루면서 2열 이상으로 베이스(10)상에 설치되며, 마주보는 S극이 N극에 대해 소정각도 벌어지도록 배치되는 고정자(20)와; 상기 베이스(10)에 회전이 가능하도록 설치되는 원통의 회전체(30)와; 상기 고정자(20)와의 상호 작용에 의해 상기 회전체(30)를 회전시키는 것으로, 상기 고정자(20)사이를 통과하면서 회전되도록 상기 회전체(30)의 외면 둘레에 등간격으로 설치됨과 동시에 상호 엇갈리도록 여러 열로 배치되는 막대형 영구자석인 회전자(40)로 이루어진다. 이와 같은 본 발명은 영구자석인 고정자와 회전자의 상호작용에 의해 스스로 회전될 수 있는 회전체를 구비함으로써, 소정의 동력을 발생시킬 수 있는 기능을 갖는다.
Patent KR-20000075313-A (KR)
Inventor: KIM YEONG JONG
IPC: F04C18/02
Filed: 1999-05-31
Abstract: PURPOSE: A scroll compressor is provided to achieve an improved compression efficiency by allowing the scroll wrap to smoothly correspond to a pressure change caused by a refrigerant compression. CONSTITUTION: A scroll compressor comprises a fixed scroll and a swirling scroll. The fixed scroll is fixed to a main body and has a wrap(151) which is protruded, forming a volute curve. The swirling scroll has a wrap which is protruded in correspondence with the wrap of the fixed scroll, and is engaged with the fixed scroll so as to make a revolutionary swirling motion with a predetermined radius vector for the center portion of the fixed scroll. When the radius vector of the volute curve formed by the scroll wraps is "r", a coefficient of the algebraic spiral is "a", and an angle of deviation is "b", the expression is r=abg(b)(wherein "g" is a variable). Therefore, pitch interval of the wrap and thickness of the wrap change in accordance with the value of "b".
Patent KR-20010002098-A (KR)
Inventor: YOON IM KYU
IPC: F16L9/06
Filed: 1999-06-11
Abstract: PURPOSE: A synthetic resin pipe, in which the retractive piping is possible, is provided to reduce the unnecessary work time and labor prominently during manufacturing, and facilitate the construction of piping while the pipe wall is bent freely according to the condition of pipe location. CONSTITUTION: A synthetic resin pipe comprises a spiral units(10), a pipe wall(100) and a flexible connection part(20). In the spiral units, the hard resin(12) surrounds the reinforcing core(11) of inside, and the spiral unite is screwed in circular arc shape at regular intervals. In the pipe wall, the flexible connection part is made of flexible soft-resins(21) placed in between spiral units, and then connected continuously to form the pipe wall which has a path for water flow in inside, so that the pipe wall is bent freely by the flexible connection part between spiral units.
Patent KR-20000011296-A (KR)
Inventor: BERTIN CLAUD
IPC: G06F13/16
Filed: 1999-06-14
Abstract: PURPOSE: An input/output DRAM of a high speed/a wide bandwidth is provided to adjust a speed/power mode for accepting various applications. CONSTITUTION: The DRAM comprises two separate bus networks for connecting itself to a processor. One of the two separate bus networks(62, 63) is a multiple input/output bus of 8:1 or 16:1 of a high speed(for example, 500MHz), and the other of the two separate bus networks is a bus of a low speed (for example, 64 bits). The high speed bus(63) is used for graphic purpose application which requires a high speed access with regard to many bits in an array of a DRAM memory so that a high power is required. Since all applications do not require that a many amount of data between the DRAM and the processor is transferred, a low speed bus(62) is used for an application which requires less transfer of data such as a word processor and a spread sheet. Since the low speed bus operates at a low power, a power reduction mode for elongating a battery lifetime is provided.
Patent KR-20010003294-A (KR)
Inventor: LEE SEUNG JUN
IPC: C08G18/40
Filed: 1999-06-22
Abstract: PURPOSE: An integrally molded polyurethane foam comprising the exterior coating material and polyurethane foam for automobile part, in particular dash boards, head rests, arm rests, ceiling materials and so forth is provided, which has excellent adhesive strength, causes no peel off of the the exterior coating and the foam, causes no discoloration and denaturalization with time. CONSTITUTION: In a molded foam used for an automobile part by integrally molding polyurethane foam obtained by mixing polyol, polyisocyanate, a foaming agent and an additive with the exterior coating material, the polyol uses polyether polyol having an average molecular weight of 3,000 to 10,000, an average number of functional groups of 3 to 6 and a terminal content of ethylene oxide of 8 parts by weight or more as base polyol and the foam contains 0.5 to 15 parts by weight of polyester polyol having an average molecular weight of 400 to 2,600 and an average number of functional groups of 1.8 to 2.6 based on 100 parts by weight of the base polyether polyol.