baber/WOPTO huggingface dataset:
Patent KR-20040043564-A (KR)
Title: Develop system and develop method in photo lithography process
Inventor: BAEK SEUNG WON
IPC: H01L21/027
Filed: 2002-11-19
Abstract: PURPOSE: A developing system for a photolithography process is provided to improve uniformity of development and critical dimension by uniformly applying developer to the front surface of a wafer. CONSTITUTION: A circular housing(30) is connected to a side of an induction pipe to which developer is supplied. A plurality of flow paths(35) are formed in a plate(37) for defining space parts(A,B) in the housing. A plurality of injection holes(32) are formed in the lower part of the housing. A developer injecting apparatus includes the housing, the plate and the injection holes. A wafer is mounted on a chuck(33) in a direction confronting the housing, capable of vertically transferring in a direction confronting the housing. A chuck driving unit(41) can drive the chuck vertically. A developer injection detecting sensor(43) detects whether the developer injected from the injection holes is applied to the wafer, installed in a side of the chuck. A chuck driving control unit delivers the control order for driving the chuck driving unit to the chuck driving unit based upon developer injection start information inputted from the sensor. A chuck transfer unit includes the chuck, the chuck driving unit, the developer injection detecting sensor and the chuck driving control unit.
Patent KR-20040045977-A (KR)
Title: Method of manufacturing semiconductor device
Inventor: LEE SEOK GYU
IPC: H01L21/28
Filed: 2002-11-26
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to improve the refresh characteristic of the device and the insulation characteristic between a gate and the post conductive layer by applying a buffer oxide layer between a spacer and a gate structure. CONSTITUTION: A gate structure is formed on a semiconductor substrate(40). At this time, the gate structure is completed by sequentially depositing a gate isolating layer(41), a gate(42), and a hard mask(43). A nitride spacer(47) is formed at both sidewalls of the gate structure. A buffer oxide layer(45) is formed between the spacer and the gate structure. A plug(48) is formed between the spacers. An interlayer dielectric(49) is formed on the entire surface of the resultant structure. A contact hole is formed by selectively etching the interlayer dielectric for partially exposing the plug and its peripheral portion. An etch stop layer(51) is formed at the loss portion of the buffer oxide layer.
Patent KR-20040046232-A (KR)
Title: method for controlling cycle of washing machine
Inventor: CHO IN HAENG
IPC: D06F33/02
Filed: 2002-11-26
Abstract: PURPOSE: A stroke control method of a washing machine is provided to prevent a lowering of washing performance and prevent breakage of parts caused by an increase of load by executing water supply of proper amount according to the input of the laundry. CONSTITUTION: A washing machine executes a washing stroke by selectively applying a pulsator mode of independently driving a pulsator by an inverter motor, and a washing tub mode of simultaneously driving the pulsator and a washing tub. A stroke control method of the washing machine comprises steps of sensing the washing amount of the current laundry thrown if a washing command is input(S21,S22); supplying water in accordance with the sensed washing amount and executing washing(S23); sensing door opening during washing(S24); deciding the current mode(a pulsator mode/a washing tub mode) if door opening is sensed(S25); and re-sensing the washing amount with the decided mode and executing washing by re-supplying water according to the sensed result(S26).
Patent KR-20040048509-A (KR)
Title: Vibration absorption type inverter driving three phase inertia motor for treadmills
Inventor: CHA YONG KI
IPC: H02K5/24
Filed: 2002-12-03
Abstract: PURPOSE: A vibration-absorbing type inverter-driving three-phase inertia motor for a running machine is provided to prevent the transmission of the vibration to a frame and a running belt of the running machine by forming a motor having an anti-vibration structure. CONSTITUTION: A vibration-absorbing type inverter-driving three-phase inertia motor for a running machine includes a main body, a first anti-vibration member, a driving pulley, a flywheel, a supporting unit, and a second anti-vibration member. A stator is fixed to the inside of the main body(10). A plurality of bearings are installed at both sides of the inside of the main body in order to support a driving shaft. The first anti-vibration member is used for covering each outer wheel of the bearings. The driving pulley(60) is installed on one end of the driving shaft. The flywheel(100) is installed on the other end of the driving shaft in order to distribute loads of a rotor to each bearing. The supporting unit(20) is formed with a supporting plate and a holding plate. The second anti-vibration member(30) is installed on a loading side of the holding plate.
Patent KR-20040048735-A (KR)
Title: Method for reinforcing a dam by layer compaction using high intensity public works texture
Inventor: CHOI CHOON SIK
IPC: E02B3/10
Filed: 2002-12-04
Abstract: PURPOSE: A tamping-reinforcing method of an embankment using high-strength geosynthetics is provided to protect an embankment from waves or rains by using high-strength geosynthetics having excellent cut-off effect of water. CONSTITUTION: The tamping-reinforcing method of an embankment using high-strength geosynthetics comprises the steps of: cutting off a portion of a water contact plane of the upper half of an embankment(100) for reinforcement to the appointed depth to be in the firm ground state by a horizontal plane, then tamping; spreading geosynthetics(110) on the backing base tamped by the horizontal plane evenly, tamping to the appointed height, then covering up with geosynthetics(110); spreading another geosynthetics(110') to be overlapped partially with the geosynthetics(110), then tamping to the upper end of the embankment(100); and reinforcing/banking the upper and rear parts of the embankment(100).
Patent KR-20040049743-A (KR)
Inventor: KIM JONG DAE
IPC: H01L27/12
Filed: 2002-12-07
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to be compatible with a process for fabricating an analog CMOS(complementary-metal-oxide-semiconductor) device of a sub micron class by forming sources and drains of high and low voltage devices in a well region formed in a silicon device region of a SOI(silicon-on-insulator) substrate. CONSTITUTION: The silicon device region(3) is patterned to respectively form a trench in an isolation region and a capacitor formation region between high and low voltage device regions. A drift region of the first conductivity type is formed in the silicon device region of the high voltage device region. Wells of the second and first conductivity types are formed in the drift region and the silicon device region of the high and low voltage device regions. An isolation layer(10) is formed in the trench. A field oxide layer(11) is formed in the silicon device region of the high voltage device region. Channel ions are implanted into the silicon device region of the high and low voltage device regions. Thick and thin gate oxide layers are formed in the high and low voltage device regions, respectively. A gate electrode(14a,14b) is formed on the channel region of the high and low voltage device regions while a lower electrode(14c) is formed in the capacitor formation region. Sources and drains(17a,17b) are formed in the wells of the high and low voltage device regions. An insulation layer(18) and an upper electrode(19) are sequentially formed on the lower electrode of the capacitor formation region.
Patent KR-20040052032-A (KR)
Title: Electricphotographic Image-forming apparatus
Inventor: AHN BYEONG HWA
IPC: G03G21/00
Filed: 2002-12-13
Abstract: PURPOSE: An electrophotographic imaging device is provided to prevent that a waste toner is piled up in only a part of a waste toner case and is hardened. CONSTITUTION: A plurality of protrusions(350) are protruded and formed on an upper surface of a cassette. An actuator(310) has a shaft(311) and a rotation portion(313). The shaft(311) is rotatably installed in a waste toner case(290), and a plurality of stirring wings(312) are formed in the shaft(311). A plurality of the stirring wings(312), formed in the waste toner case(290), stir a waste toner(291). The rotation portion(313) is connected to the shaft(311) in the outside of the waste toner case(290), and is contacted with the protrusions(350). A plurality of elastic members(340) are installed in a plurality of supporting portions(330) formed in the outside of the waste toner case(290) to be symmetrized centering around the rotation portion(313). The elastic members(340) return the actuator(310) to an original position when the actuator(310) is not contacted with the protrusions(350).
Patent KR-20040055307-A (KR)
Title: Fund variant system using living body information of customer and method thereof, and media that can record computer program sources for method thereof
Inventor: JANG CHEOL IL
Filed: 2002-12-20
Abstract: PURPOSE: A system and a method for transferring fund using the biometric information of customer, and a recording medium storing a computer program source for the same are provided to transfer the fund by storing/using the biometric information such as a fingerprint, an iris, or a vein of the customer instead of an account number. CONSTITUTION: The system includes the customer(10) for opening a bankbook using the biometric information, and a branch(20) and a head office(30) of a bank selling the bankbook using the biometric. The branch includes a fingerprint reader(21) for inputting the fingerprint of the customer, and a branch terminal(22) for transmitting the fingerprint information, the customer information, and the account number of the customer to a main host(31) of the head office. The head office includes the main host equipped with a customer database(32) storing the customer/account information transmitted from the branch terminal, and a biometric information database(33) for storing the biometric information of the customer received through the main host.
Patent KR-20040056460-A (KR)
Title: Program installation method in switching system
Inventor: KIM GI TAEK
IPC: H04M3/00
Filed: 2002-12-23
Abstract: PURPOSE: A program installing method in a switching system is provided to prevent stoppage of operation of a system caused by replacement or update of a program by separately storing a program code in a temporary storing and a permanent storing unit. CONSTITUTION: When a hardware is initialized(S20), each lower element checks whether a program code received from a main controller has been stored in a temporary storing unit(S21). If the program has been stored in the temporary storing unit, the program code stored in the temporary storing unit in a permanent storing unit(S22) and then the program code stored in the temporary storing unit is deleted(S23).
Patent KR-20040059262-A (KR)
Title: multi channel cooling device and its method
Inventor: KIM SANG GWON
IPC: H01L21/306
Filed: 2002-12-28
Abstract: PURPOSE: A wafer cooling apparatus and a method thereof are provided to unify the etching rate for an upper surface of a wafer by setting differently cooling temperatures according to regions of a lower surface of the wafer using a multi-channel. CONSTITUTION: A wafer cooling apparatus includes a chamber, a lower electrode(6), a coolant supply part, an upper contact part, an upper electrode and a process gas supply part. The coolant supply part(14) is connected to the lower electrode through the first to third channels. The coolant supply part supplies coolants with different temperatures to each channel. The first channel(11) for flowing the first coolant with low temperature is connected with the center of the lower electrode. The second channel(12) for flowing the second coolant with intermediate temperature is connected with the periphery of the center. The third channel(13) for flowing the third coolant with high temperature is connected with the periphery of the lower electrode.
Patent KR-20040061846-A (KR)
Title: Tebga package
Inventor: LEE GU HONG
IPC: H01L21/60
Filed: 2002-12-31
Abstract: PURPOSE: A TBGA(Thermal enhanced Ball Grid Array) package is provided to radiate the heat generated from a semiconductor chip by installing a heat spreader between a substrate and the semiconductor chip. CONSTITUTION: A TBGA includes a semiconductor chip, a substrate, a heat spreader, a bonding wire, a sealant, and a conductive ball. The semiconductor chip(110) includes a plurality of bonding pads. A circuit pattern(112) and a ball land(113) are adhered on both sides of the substrate, respectively. The heat spreader(130) is inserted between the substrate and the semiconductor chip. The bonding wire(115) is used for connecting the bonding pad to the circuit pattern. The sealant is formed on the substrate to cover the semiconductor chip and the bonding wire. The conductive ball(118) is adhered on the ball land.
Patent KR-20020092892-A (KR)
IPC: G01M13/021
Filed: 2000-07-15
Abstract: 자동차 운행의 모형에 의하여 시험대 상에서 전기-유압적으로 제어된 자동 변속 장치의 기능을 시험하는 방법은 변속 장치의 종동축이 서있는 토크 측정 허브와 결합되며 이것에 의해 봉쇄되도록 만들어지며; 변속 장치 내에 존재하는 변환 요소의 시험은 이것에 의해 하나의 구동 장치 회전수를 가지는 봉쇄된 종동 장치 축에서 이루어지며 상기 구동 장치 회전수는 유압 압력을 가지는 변환 요소에 대한 압력 제어 요소를 공급하는 것을 바로 충족시킨다. 특성값으로서 제어 요소 전류가 사용될 수 있으며, 상기 제어 요소 전류의 경우에 변환 요소는 슬립 속으로 들어가거나 또는 이러한 경우에 슬립은 변환 요소가 닫힐 때 " 영 "에 도달한다.
Patent KR-20020040763-A (KR)
Title: 다목적 키보드
IPC: G06F3/02
Filed: 2000-08-03
Abstract: 호스트 컴퓨터용 입력 장치로 사용하기 위한 키보드로서, 접촉 부분을 가지며 기초에 의해 고정되는 한 세트의 특정키를 갖춘 교체 부분(20)을 포함하는 키보드. 교체 부분(20)은 세트를 사용하는 호스트 컴퓨터 상에서 실행되어질 특정 소프트웨어 어플리케이션과 관련되며, 데이터 연결 장치와, 특정 어플리케이션과 관련된 확인 데이터(ID)를 갖춘 데이터 저장 장치를 포함한다. 키보드는 교체 부분(20)이 설치되는 고정 부분(10)을 또한 포함한다.
Patent KR-20020031424-A (KR)
IPC: C07D265/30
Filed: 2000-09-15
Abstract: 서방성 레복세틴을 제공하는 투여 형태 및 방법이 제공된다.   서방성 투여 형태는 1일 1회 투여시 치료 효과적인 평균 정상 상태 혈장 레복세틴 농도를 제공한다.   상기 1일 1회 투여 요법은 각 24 시간 내에 오직 하나의 피크 혈장 레복세틴 농도의 발생을 초래한다.   또한, 피크 혈장 레복세틴 농도는, 속방성 투여 형태의 레복세틴 투여 후 발생하는 피크 혈장 레복세틴 농도보다, 투여 후 더 늦은 시간에 발생하고, 더 낮은 등급을 나타낸다.
Patent KR-20020049041-A (KR)
IPC: B25J15/06
Filed: 2000-11-06
Abstract: 본 발명은 흡인에 의하여 전기 부품을 흡착하기 위한 진공 피펫에 관한 것이다.  상기 진공 피펫(1)의 확장된 내부로 필터 격자(9)가 옮겨지고, 상기 필터 격자의 횡단면은 정면에 있는 흡인 개구(8)의 횡단면보다 크기가 현저하게 크다.  상기 필터 격자에 형성되어 있는 갭은 아주 작은 부품(6)이라도 확실하게 붙잡을 수 있을 정도로 협소하다.  그럼에도 불구하고, 이용할 수 있는 전체의 통과 횡단면의 크기는 정면에 배치되어 있는 필터 격자에서 보다 현저하게 크다. 
     그 결과로서, 일정한 흡인 조건하에서 우수한 흡인력이 발생한다.
Patent KR-20020060241-A (KR)
IPC: C01B39/02
Filed: 2000-11-14
Abstract: 본 발명은 양이온이 NH 4   + , H 3 O + , 알칼리 금속, 알칼리 토금속, 토금속 또는 전이 금속 이온 또는 저분자량 유기 양이온 또는 이것의 조합물이고, 음이온이 섬형, 링형, 그룹형, 사슬형, 밴드형, 층형 또는 텍토실리케이트 또는 이것의 조합물인 염형 구조화 규산염을 전자 사진 토너 및 현상제에서, 코팅 분말, 일렉트럿트 물질에서 그리고 정전기 분리 공정에서 전하 조절제로서 사용하는 염형 구조화 규산염의 용도에 관한 것이다.
Patent KR-20020059791-A (KR)
IPC: B01D53/46
Filed: 2000-11-22
Abstract: 수소화물 함유 유출물 내의 수소화물 화학종을 경감하기 위한 유출물 경감 시스템(10)은, 수소화물 함유 유출물을 금속 산화물을 함유하는 건식 스크러버 물질과 접촉시키는 단계로서, 상기 금속 산화물은 수소화물 화학종에 대한 건식 스크러버 물질의 용량이 적어도 부분적으로 소진될 때까지 수소화물 화학종과 반응하여 유출물로부터 수소화물 화학종을 실질적으로 제거하는 것인 단계와, 적어도 부분적으로 소진된 용량의 건식 스크러버 물질을 산화제와 접촉시켜, 수소화물 화학종에 대한 건식 스크러버 물질의 용량을 적어도 부분적으로 회복시키는 것인 단계를 수행하도록 배치된다.  본 발명의 유출물 경감 시스템은 반도체 제조 플랜트(36)에서 Ⅲ-Ⅴ 화합물 반도체 제조 작업으로부터 유출물의 처리에 특별한 용도를 갖는다.
Patent KR-20020075384-A (KR)
IPC: C07D251/62
Filed: 2000-12-07
Abstract: 멜라민 결정화 모액으로부터 멜라민 및 옥시아미노트리아진(OAT)를 회수하는 방법은 다음을 포함한다: a) 멜라민 및 OAT 함유 수용액에 pH가 11 또는 그 이상에 이를 때까지 고온에서 알칼리제를 첨가하는 단계; b) 단계 a)에서 얻은 용액을 냉각시킴으로써 대부분의 멜라민을 결정화시키는 단계; c) 침전된 멜라민을 분리하고 회수하는 단계; d) 침전된 멜라민을 분리한 후, 거의 모든 용해된 OAT가 침전되도록 pH 값이 약 7이 되도록, 결과로서 생기는 용액(모액)을 산성화시키는 단계; e)상기 단계 d)에서 얻은 현탁액을 접선여과 기술에 따라 여과하여, 단계 b)에서 침전되지 않은 모든 멜라민 용액을 함유하는 투명한 투과물(permeate) 및 OAT 분산액을 포함하는 투석유물(retentate)을 얻는 단계; f) 단계 e)의 OAT가 제거된 모액(상기 투과물)을 정제되지 않은 멜라민 용액 준비단계로 재순환시켜, 단계 b)에서 침전되지 않은 멜라민의 거의 총량을 회수하는 단계; 및 g)단계 e)의 투석유물로부터 임의의 종래 분리기술을 이용하여 OAT를 회수하는 단계.
Patent KR-20020084103-A (KR)
Title: 초 미세 입체구조의 제조 방법 및 그 장치
Inventor: KAITO TAKASHI
IPC: C23C16/04
Filed: 2001-11-27
Abstract: 집속 이온빔 장치를 이용한 디포지션 기술로서, 원료 가스로서 페난트렌을, 이온으로서 액체금속 이온원 으로부터 5 내지 100keV의 갈륨 또는 금, 실리콘, 베릴륨 등의 이온을 사용하고, 가스 분사 밀도를 종래의 디포지션의 경우보다 5 내지 10 정도 높게 하고, 가스 분사 방향을 등방향 또는 대칭적으로 하여 실행하는 방법을 채용한다.
Patent KR-20020079938-A (KR)
Title: 1,3-디알킬-2-이미다졸리디논류의 제조 방법
IPC: C07D233/32
Filed: 2001-12-27
Abstract: 본 발명은 알킬렌옥시드를 제1 성분으로 사용하고, 
     (A) 이산화탄소 및 모노알킬아민, 
     (B) 모노알킬아민의 이산화탄소 화합물, 및 
     (C) 1,3-디알킬 요소로 이루어지는 군으로부터 선택되는 1종 이상을 제2 성분으로 사용하고, 제1 성분과 제2 성분을 50 ℃ 이상에서 가열하여 반응시켜, 1,3-디알킬-2-이미다졸리디논류를 제조하는 방법에 있어서, 성분 (A)에 포함되는 모노알킬아민의 공급 몰수와, 성분 (B)의 모노알킬아민의 이산화탄소 화합물 중의 모노알킬아민 성분의 공급 몰수와, 성분 (C)의 1,3-디알킬 요소의 공급 몰수의 2배와의 합계의 몰수를, 상기 알킬렌옥시드의 공급 몰수에 대하여 3 배 이상으로 하는 방법을 제공한다. 
     본 발명은 공업적으로 입수가 용이한 알킬렌옥시드를 원료로 하고 있고, 공업적으로 실시하기에 바람직한 고수율의 제조 방법이다.
Patent KR-20020092398-A (KR)
Title: 암을 가진 마이크로폰
IPC: H04R1/10
Filed: 2002-02-01
Abstract: 본 발명은 스피커 등에서 발생하는 진동 마이크로폰으로의 전달을 방지하여 얻는 암을 가진 마이크로폰을 제공하는 것을 과제로 하는 것에 있어서, 마이크로폰을 지지하는 암을 복수로 분할하고, 그의 각 분할암을 각각 탄성체를 매개하여 연결한 것을 특징으로 한다.
Patent KR-20030003267-A (KR)
Title: Passenger protection apparatus for a motor vehicle
IPC: B60R21/00
Filed: 2001-05-01
Abstract: A passenger protection apparatus for a motor vehicle is provided comprising a first interior trim member and a second interior trim member. The first interior trim member, preferably an instrument panel, is attached to the motor vehicle and the second interior trim member attached to the first interior trim member. The second trim member is attached to the first trim member such that the second interior trim member is removable from the first interior trim member without detaching the first interior tnm member from the motor vehicle The second interior trim member is located in the knee impact region of the motor vehicle and comprises a first energy management device in the form of an inflatable restraint apparatus having an airbag and an inflator. In this manner, the passenger protection apparatus provides a structure which includes an inflatable restraint apparatus which is easily replaceable in a motor vehicle without having to remove the instrument panel
Patent KR-20030019416-A (KR)
Title: Dunnage conversion machine with translating grippers, and method and product
IPC: B31D5/00
Filed: 2001-06-08
Abstract: A dunnage conversion machine for converting stock material into a dunnage product includes a forming assembly and a pulling assembly. The pulling assembly includes at least two grippers movable together through a transfer region in opposition to one another and cooperative to grip therebetween the dunnage strip for advancing the dunnage strip through the transfer region, and at least one of the grippers including an aperture operative to gather and laterally capture therein the dunnage strip as the grippers move through the transfer region. Also disclosed is a severing assembly including a movable blade and a reciprocating actuator connected to the blade by a motion transmitting assembly that moves the blade through a full severing cycle upon a stroke of the actuator in either direction. Also disclosed is a void fill dunnage product including a three dimensional crumpled strip of dunnage round in cross-section and including at least one ply of sheet material having, in cross-section, a crumpled multi-lobed undulating body, with the lobes thereof extending longitudinally and being dispersed in an irregular pattern.
Patent KR-20040063219-A (KR)
Inventor: CHOI CHEOL U
IPC: G06F1/16
Filed: 2003-01-06
Abstract: PURPOSE: A structure for fixing a touch screen of an LCD monitor is provided to stably keep a set position without escaping or distorting from the set position even if the LCD monitor receives a physical shock or is used for a long time. CONSTITUTION: To remain no mark on the touch screen in case that a front cabinet(3') is replaced as bad is generated to an appearance of the front cabinet, a hollowed bracket(9) is installed between the front cabinet and a rear cabinet. The touch screen(2) is attached to one side of the hollowed bracket by both-sides adhesive tape(4') in order to be fixed to an inner side of the front cabinet. An LCD module(5) is attached to other side of the hollowed bracket by both-sides adhesive tape(4'') in order to be fixed/surrounded by the rear cabinet. Two combining parts are installed to two rims among an inner rectangular rim of the front cabinet. Receiving parts are formed to the hollowed bracket by matched with each combining part.
Patent KR-20030034123-A (KR)
Inventor: KIRIKOSHI HIROHITO
IPC: H04L9/10
Filed: 2003-01-27
Abstract: PURPOSE: An information processing system and a peripheral device are provided to efficiently prevent the execution of a game using a CD-ROM or another medium which is not an orignal copy. CONSTITUTION: If the power of a PC is turned on, an OS(Operating System) is started. If a CD-ROM(53) which stores a program is installed in a CD-ROM drive(52), a security check is started. The CD-ROM(53) stores a security code, and the PC(51) transmits the security code from an RS(Recommended Standard)-232C port to a peripheral device(10). When an interface(37) of the peripheral device(10) receives the security code, a RAM(32) temporarily stores the security code through an internal bus(36). A CPU(33) of a microcomputer(35) checks whether a security code stored in a mask ROM(34) is identical to the security code stored in the RAM(32). If the security codes are identical, the peripheral device(10) confirms that the CD-ROM(53) is an original product. The CPU(33) transmits the security code to the PC(51) through the interface(37). If the security code transmitted from the peripheral device(10) is identical to the security code stored in the CD-ROM(53), the PC(51) confirms that the peripheral device(10) is the orignal product.
Patent KR-20040069536-A (KR)
Inventor: LEE YONG HAN
IPC: H01J1/30
Filed: 2003-01-29
Abstract: PURPOSE: A field emission device and a fabrication method are provided to prevent a destruction of an anode oxidation film due to stress in a longitudinal direction of a bottom electrode by forming an insulating oxidation film at an intersection part of a bottom electrode and a top electrode. CONSTITUTION: A field emission device comprises a plurality of bottom electrode buses made of conductive material at a top glass and which is formed with a unit bus type at a plurality of device formation position, a plurality of top electrode buses located at a top part of the of bottom electrode buses and crossed with the bottom electrode buses at the device formation positions and having an aperture part at a center part of a crossing point, an anode oxidation film formed among the bottom and the top electrode buses and located at a part excepting a territory connected between the aperture part of the top electrode buses and the top electrode buses, and a tunnel oxidation film located at a bottom part of the aperture part and at a top part of the bottom electrode bus.
Patent KR-20040070377-A (KR)
Inventor: JANG SI SUNG
IPC: B29C53/58
Filed: 2003-02-03
Abstract: PURPOSE: A synthetic resin pipe using a triangular profile and a device for forming the same are provided to improve the stiffness of the synthetic resin pipe by forming reverse-triangular spaces filled with joint members between the triangular profiles. CONSTITUTION: In a synthetic resin pipe(1), triangular hollow(9) are formed at the inside of triangular profiles(3). Connection units(20) have a reverse-triangular shape, and are disposed between the triangular profiles. Joint members(10) are filled into the connection units.