baber/WOPTO huggingface dataset:
Patent KR-20030053946-A (KR)
Title: bipolar junction transistor and method of fabricating electrodes thereof
Inventor: YOON SEOK NAM
IPC: H01L29/73
Filed: 2001-12-24
Abstract: PURPOSE: A BJT(Bipolar Junction Transistor) structure and a method for manufacturing an electrode thereof are provided to be capable of improving device characteristics and simplifying manufacturing processes by manufacturing the BJT structure without forming an upper oxide layer between a polysilicon electrode and a metal electrode. CONSTITUTION: A collector electrode(10) is formed on the rear surface of a substrate(20). An emitter region(42) is formed on the upper surface of the substrate. A plurality of base regions(40) are formed at the predetermined portions of the substrate. An insulating layer is partially formed on the resultant structure. A plurality of base electrodes are connected with the upper portions of the base regions through the insulating layer, respectively. A polysilicon electrode(56) is connected with the upper portion of the emitter region through the insulating layer. A metal electrode(76) having a larger width than that of the polysilicon electrode, is formed on the upper portion of the polysilicon electrode.
Patent KR-20030054305-A (KR)
Title: Apparatus for transmitting and receiving asynchronous transfer mode cell and method thereof
Inventor: CHOI SEONG GU
IPC: H04L12/28
Filed: 2001-12-24
Abstract: PURPOSE: A device of transceiving an ATM cell and a method therefor are provided to designate the number of UTOPIA level2 slavers mounted on an ATM network and physical addresses, in order to prevent unnecessary address polling, thereby quickly processing ATM cell transceiving. CONSTITUTION: A header converter(130) converts headers of ATM cells received from the first UTOPIA level2 slavers(200). A UTOPIA level2 master output interface(150) generates physical addresses from VPIs/VICs of the converted headers, and outputs the header-converted ATM cells to the second UTOPIA level2 slavers(300). A UTOPIA master input interface(110) receives the ATM cells from the first UTOPIA level2 slavers(200). An input buffer(120) stores the received ATM cells, and transmits the ATM cells to the header converter(130) when necessary. An output buffer(140) stores the converted headers and payload of the ATM cells, and transmits the ATM cells to the UTOPIA level2 master output interface(150) when necessary.
Patent KR-20030054339-A (KR)
Title: Method of Prediction based Resource Reservation Quantity Determination for Efficient Transmission of Realtime Traffic
Inventor: CHO YONG HUN
IPC: H04W28/26
Filed: 2001-12-24
Abstract: PURPOSE: A method of determining dynamic communication resource reservations based on prediction for efficiently transmitting real-time traffic is provided to dynamically determine reservations of communication resources by using real-time prediction information through regression analysis, thereby determining optimal communication resource reservations. CONSTITUTION: A system observes traffic frequency of traffic types including real-time traffic(401). The system estimates a probability distribution function based on the observed data(402). The system calculates an objective function for predicting an expected demerit mark while reserving communication resources based on the estimated probability distribution function(403). The system calculates an accumulated probability distribution function based on the estimated function(404). The system determines optical communication resource reservations by using the accumulated probability distribution function and the objective function, and controls a communication channel(405).
Patent KR-20030054511-A (KR)
Title: The Method for Correcting Gutter of Strip in Continuous Galvanizing Line
Inventor: JANG SE SANG
IPC: C25D21/12
Filed: 2001-12-26
Abstract: PURPOSE: A method for automatically correcting gutter of strip in continuous galvanizing line is provided to perform plating operation better by reducing and preventing gutter of the strip during change of thickness and steel type of strip or change of tension or widthwise coating amount during on line. CONSTITUTION: The method comprises a step of outputting data of the intermesh amount as much as its difference into motor controller after comparing thickness of strip preestimated and set with an intermesh amount for carbon content in process control computer(36) in case that there are variations in steel type and thickness between welded preceding and following coils of the strip entering zinc pot; a step of outputting the data of the intermesh amount to the motor controller(31) by finding a preset intermesh amount for tension variation using instrumentation control computer(37) in case that line tension of the strip is changed; a step of controlling gutter of the strip by driving a motor(32) using the motor controller(31) through intermesh amount and distance data inputted in the respective steps and moving stabilizing roll(12) back and forth as much as the inputted data of the intermesh amount according to sensing signals of potentiometer(34) that is a distance sensor; and a step of controlling gutter of the strip again by computing a degree of gutter of the strip accordingly and transmitting the computed degree of gutter of the strip to the motor controller(31) if the calculated coating weight difference exceeds a certain value after calculating coating weight difference using coating gauge(38) in case that coating weight difference is generated in a width direction of the strip regardless of the gutter control in the above step.
Patent KR-20030055615-A (KR)
Title: Correction circuit for miss-Convergence correction device of deflection yoke
Inventor: CHOI HWAN SEOK
IPC: H01J29/76
Filed: 2001-12-27
Abstract: PURPOSE: An improved circuit of a mis-convergence correction unit of a deflection yoke is provided to improve an image quality by reducing the convergence drift when changing frequencies to control the resolution. CONSTITUTION: An improved circuit of a mis-convergence correction unit includes the first to the sixth coma-free coils(51-56), a YHC mis-convergence control portion(20), a YV mis-convergence control portion(30), the first and the second coils(71,72), and a damping resistance. The first to the sixth coma-free coils are serially connected to a vertical coil main portion(10). The YHC mis-convergence control portion is connected in parallel to the first to the fourth coma-free coils in order to control the comparative amount of current applied to the first to the fourth coma-free coils. The YV mis-convergence control portion is connected in parallel to the fifth to the sixth coma-free coils in order to control the comparative amount of current applied to the fifth to the sixth coma-free coils. The first and the second coils are used for forming a double intermediate tap of the first and the second diodes, a YH variable resistance, the third and the fourth resistance, and a vertical coil. The damping resistance is serially connected to the YH variable resistance.
Patent KR-20010071860-A (KR)
Title: 디지털 적응형 필터 및 이를 사용하는 반향 제거기
IPC: H04B3/23
Filed: 1999-07-01
Abstract: 예를 들어 반향 제거를 위한 개선된 컨버젼스를 성취하기 위하여, 입력 신호(x), 상기 입력 신호의 추정된 전력(PI), 및 디지털 적응형 필터에서 필터링된 입력 신호 및 상기 디지털 적응형 필터에 의해 모델링되는 외부 경로(16)를 따라서 전파되는 입력 신호간의 에러 신호에 따라서 필터를 연속적으로 갱신하는 필터 계수 갱신 수단(52, 78)를 구비하는  디지털 적응형 필터가 제공된다. 여기서, 입력 신호 전력 추정 수단(50, 84-92)은 순환적인 스무딩을 수행하도록 적응되어 상이한 스무딩 팩터로 입력 전력을 비대칭적으로 증가 및 감소시킨다. 이 추정이 주파수 도메인에서 실행되는 경우에, 필터 계수의 갱신을 위한 스텝 크기는 주파수 대역에 선택적으로 적응될 수 있다.
Patent KR-20010085388-A (KR)
IPC: A61Q3/02
Filed: 1999-08-13
Abstract: 생체적합성, 기계적 강도, 열성형성에 우수하고, 의료용 재료, 안과용 재료, 화장품 재료 또는 전자재료에 사용가능한 신규의 공중합체 등으로서, 화학식 4의 주쇄, 화학식 5의 말단 및 화학식 6의 다른쪽의 말단을 갖고, 
     (화학식 4) 
     -(NH-A-NHCO-B-CO)m- 
     (화학식 5) 
     -NH-A-NH-X 2   
     (화학식 6) 
     -X 1   
     공중합체중의 A로서의 -R 1 -(Si(R 2 )(R 3 )-O) nl -Si(R 2 )(R 3 )-R 1 -와, A로서의 탄소수 1∼20의 2가의 유기기와의 조성비가 1:0.01∼100의 범위이고, 또한, X 1 , X 2 가 수소원자인 비율이 전말단에 대하여 10% 이하인 폴리디알킬실록산-폴리아미드 공중합체, 그 제조법 및 각종 용도.
Patent KR-20010089179-A (KR)
Title: A Polymeric Pigment Dispersant having an Acrylic Backbone, Polyester Side Chains, Cyclic Imide Groups and Quaternary Ammonium Groups
IPC: C08G81/02
Filed: 1999-09-01
Abstract: A polymeric pigment dispersant of a graft polymer having an acrylic polymer backbone and pending from the backbone, polyester side chains, cyclic imide groups and quaternary ammonium groups and the polymer having a calculated number average molecular weight of 8,000-50,000; wherein the graft copolymer is composed of (a) 10-50%, by weight of the of the graft polymer, of an acrylic copolymer backbone having a number average molecular weight of 2500-10,000 which, before reaction, contains 25-75% by weight of polymerized oxirane containing monomers; (b) 20-85%, by weight of the graft polymer, of a polyester copolymer, or mixture of different polyester copolymers, having a number average molecular weight of 500-10,000 which polyester copolymer is carboxylic-acid functional and is attached to the backbone by a reaction of the carboxylic acid functional group with oxirane group of the backbone; (c) 1-16%, by weight of the graft polymer, of cyclic imide groups attached to the backbone by a reaction of the imide group with the oxirane group of the backbone and (d) 0.2-17%, by weight of the graft polymer, of quaternary ammonium groups.
Patent KR-20010088818-A (KR)
IPC: H04N7/035
Filed: 1999-09-22
Abstract: 텔레텍스트 디코더 동작에서, 즐겨찾기(favorite)로서 분류된 텔레텍스트 페이지(70)가 불러내어지고, 그리고나서 이 텔레텍스트 페이지에 속하는 텔레텍스트 페이지 번호(71)는 조작자가 키를 한번 누름으로써 즐겨찾기 페이지의 리스트에 저장된다.  만약 몇몇 즐겨찾기 텔레텍스트 페이지들을 검색하고자 한다면, 이 단계들이 반복된다.  이상적으로, 이것에 대해 스크린 상의 시각적 메뉴 어시스턴스가 제공된다.  이 방법을 구현하기 위해, 잘 알려진 텔레텍스트 디코더(10)가 비휘발성 메모리(20) 및 적합한 소프트웨어에 의해 확장된다.
Patent KR-20010075488-A (KR)
IPC: B60C9/20
Filed: 1999-10-01
Abstract: 본 발명은 크라운과, 두 개의 사이드월 및 두 개의 비드와, 상기 두 개의 비드에 고정된 카카스 보강재 및, 벨트 보강재를 포함하며, 상기 벨트 보강재는 각각의 플라이에서 평행하며 원주방향으로 10°내지 55°범위의 각도(α, β)를 형성함으로써 하나의 플라이로부터 다른 플라이로 교차되는 코드에 의해 형성된 두 개 이상의 중첩된 보강 플라이를 포함하는 타이어에 관한 것이다.  본 발명은 보강 플라이의 측방향 단부 중 적어도 하나에 타이어의 자오면을 축방향으로 따르게 함으로써 두 개의 보강 플라이 중 적어도 하나의 코드는 상기 플라이의 동일측에서 제 1 탄성 계수의 하나 이상의 고무 접착층과 접촉하며, 상기 제 1 탄성 계수 보다 작은 제 2 탄성 계수의 고무 접착층과 접촉하는 것을 특징으로 한다.
Patent KR-20010089356-A (KR)
IPC: G06K19/077
Filed: 1999-11-26
Abstract: 판형의 전자 회로 칩을 판형의 다른 전기 소자와 함께 가요성이 있는 시트에 장착하는 방법으로서, 상기 다른 전기 소자의 판면이 전자 회로 칩의 판면보다 커지도록 각각을 선택하고, 상기 다른 전기 소자의 판면과 전자 회로 칩의 판면이 시트면과 평행해지고, 또한 시트면에 대해 수직 방향에서 보았을 때에 다른 전기 소자의 판면 내에 전자 회로 칩의 판면이 들어가도록 시트에 다른 전기 소자와 전자 회로 칩을 장착하는 것을 특징으로 한다.
Patent KR-20010089506-A (KR)
IPC: F16J15/32
Filed: 2000-09-27
Abstract: 본 발명은 특수 환경하에서의 밀봉성의 향상을 도모하는 것을 목적으로 하고, 회전축(1)과 하우징(2)이 대향하는 환형 공간(A)에 비치되어 환형 공간을 축방향으로 진공 공간(B)과 대기압 공간(C)으로 구획하는 시일로서, 그 주립(6)이 회전축(1)과 슬라이드 접촉하는 축방향 접촉폭(W0)이 밀봉 부분에 대한 최저 한도의 밀봉성을 확보하는 데 필요로 되는 축방향 접촉폭(W1) 이상이고, 또한 회전축에 대한 슬라이드 저항이 한계 허용 상한치가 되는 축방향 접촉폭(W2) 이하로 하며, 회전 부재에 대한 회전 특성에 영향을 주지 않도록 하여 필요한 밀봉성을 확보할 수 있도록 하고 있다.
Patent KR-20010101886-A (KR)
IPC: H04N5/50
Filed: 2000-11-27
Abstract: 디지털 신호(MPEG2-TS)를 위한 수신기를 튜닝하는 방법에서, 입력 신호(RF-in)는 프로세싱된 신호를 얻기 위해서 필터링(In-filt, Band filt)되고, 유효 디지털 숫자(digital figure of merit)(BER)가 프로세싱된 신호로부터 (Mix/Osc/IF amp, IF-downconv-2, C)결정되고, 필터링 단계(In-filt, Band filt)는 유효 디지털 숫자(BER)에 따라서 미세-조정(μP, PLL, DAC1-DAC3)된다.
Patent KR-20010108284-A (KR)
IPC: A01K83/00
Filed: 1999-03-09
Abstract: 낚싯 줄(L)을 휘감는 막대형상의 감기부(3)를 구비한 낚시 도구(2)와, 이 감기부(3)의 선단에 설치한 낚싯 줄 묶는부재(7)는, 감기부(3)의 일부와 일체로 된 비금속으로 이루어지는 기초부(8)와, 이 기초부(8)의 일단측에, 감기부(3)의 축과 직교하는 방향으로 돌출하는 제1돌출부(9)와, 이 제1돌출부(9)의 돌출끝에 의하여 이 제1돌출부(9) 및 감기부(3)의 축에 대하여 직교하는 방향으로 뻗으며, 제1돌출부(9)로써 낚싯 줄 삽입홈(11)을 형성하는 제1안내부(10)와, 기초부(8)의 타단측에, 감기부(3)의 축과 직교하는 방향으로 돌출하는 제2돌출부(12)로 이루어진 구성으로 한다.
Patent KR-20020036940-A (KR)
IPC: H03F1/32
Filed: 2000-03-29
Abstract: An in-line distortion generator for coupling in-line with a non-linear device (NLD) produces an output signal of useful amplitude, but with low composite second order, composite triple beat and cross modulation distortions. The distortion generator comprises an instant controlled non-linear attenuator which utilizes the non-linear current flowing through a pair of diodes, in parallel with a resistor and an inductor, to provide the proper amount of signal attenuation over the entire frequency bandwidth. The distortion generator circuitry is always matched to the NLD, thereby ensuring a frequency response that is predictable and predefined. The distortion generator may also include a temperature compensation circuit to ensure consistent operation throughout a wide temperature range.
Patent KR-20020002433-A (KR)
Title: 티로신 키나제의 치환된 3-시아노-[1.7],[1.5] 및[1.8]-나프티리딘 억제제
IPC: C07D221/00
Filed: 2000-04-18
Abstract: 본 발명은 단백질 티로신 키나제의 억제제로서 유용한 구조식 (a)를 지닌 화학식 (1)의 화합물을 제공하고 있으며, 여기서 A"는 그룹(a, b, c) 중에서 선택된 이가 부위임.
Patent KR-20020034993-A (KR)
Title: Elastic Articulating Component For Optical Frame
IPC: G02C5/22
Filed: 2000-05-05
Abstract: The invention concerns an elastic articulating component for an optical frame, comprising a case (1), a slide (3) arranged inside the case, a locking socket (11) which itself mounted around the slide. The socket has an elastic tab (1) to block the socket relative to the case (1) when the latter is moved relative to an articulating knuckle (13) against the compression of a spring (7). The invention is characterised in that the case (1) has a housing (5) for guiding the slide (3) in translation inside the case, and the elastic tab (19) is inserted into an aperture (21) of the case (10) emerging into the housing (5). This arrangement enables to reduce play when the slide is being guided in translation inside the case and provides greater facility for maintaining the tab in the case. Advantageously, it enables for reduce the width of the case, thereby enhancing the aesthetic appearance of the frame.
Patent KR-20030059686-A (KR)
Inventor: WON SEUNG HWAN
IPC: H04B7/02
Filed: 2002-01-04
Abstract: PURPOSE: A signal transmission apparatus in a MIMO(Multiple Input Multiple Output) system is provided to efficiently arrange each array of antennas in limited space. CONSTITUTION: In a preprocessing encoder(604), a header or an indicator to judge a D-BLAST(Diagonal-Bell Labs' Layered Space Time) element is added to a data stream. The data stream is divided into M numbers of sub data streams by a DEMUX(603), and they are provided to signal processors(602a,602b) in an identical rate. Each of the signal processors(602a,602b) encodes the provided sub data streams so that the divided sub data streams can have different transmission delay time respectively. Binary cyclic shifters(601a,601b) periodically connect the encoded signals to their respective antennas so that the signals can be transmitted to a receiver through their respective antenna.
Patent KR-20030060152-A (KR)
Inventor: KIM TAE HYEOP
IPC: H01Q1/24
Filed: 2002-01-07
Abstract: PURPOSE: An antenna automatic matching apparatus is provided to be capable of matching a frequency characteristic of an antenna automatically so as to be suitable for a converted TX/RX frequency band. CONSTITUTION: A sensing part(211) senses a peripheral circumstance or a TX/RX state of a mobile communication terminal. A control part(213) controls TX/RX frequency matching of an antenna(212) according to a peripheral circumstance or a TX/RX state sensed by the sensing part. A storage(214) outputs a stored digital voltage value according to a control of the control part. A digital-analog converter(215) converts the digital voltage value into an analog DC voltage. A variable matching part(216) matches a TX/RX frequency of the antenna according to a magnitude of the DC voltage from the digital-analog converter.
Patent KR-20030060681-A (KR)
Title: A method of cultivation of seeding using nonfabric port
Inventor: CHOI JANG OK
IPC: A01G9/02
Filed: 2002-01-11
Abstract: PURPOSE: Provided is a method of cultivation of a seeding using a nonwoven pot, thereby reducing the cost for the cultivation of a seedling, and increasing rooting rate thereof. CONSTITUTION: A method of cultivation of a seeding using a nonwoven pot comprises the steps of: cutting polyester fabric and sewing it to provide a cylindrical pot of which upper part is opened and lower part is closed; filling the pot with soil 1/3 and followed by placing a seedling thereon and covering soil thereon 2cm; planting the pot in the ground; and removing the pot and transplanting the cultivated seedling.
Patent KR-20020092782-A (KR)
Inventor: IKUTA TERUHISA
IPC: H01L27/06
Filed: 2002-01-16
Abstract: PURPOSE: A high-voltage semiconductor device is provided to achieve a superiorly reliable high-voltage semiconductor device in which deterioration in breakdown voltage does not occur even in high temperature applications. CONSTITUTION: A high-voltage semiconductor device comprises a semiconductor region, a doped contact region, an isolating region, a metal electrode which is electrically connected to the doped contact region, and floating plate electrodes(18a,19a). A section of the metal electrode is extended onto an interlayer dielectric film and located over the respective plate electrodes(17a). The extended section is capacitively coupled to the plate electrodes, respectively. A CMOS circuit, a resistor, a capacitor are formed in a portion of the semiconductor region which is surrounded with the doped contact region.
Patent KR-20030063759-A (KR)
Inventor: AN JEONG MAN
IPC: G08G1/096
Filed: 2002-01-24
Abstract: PURPOSE: An apparatus for displaying the pedestrian traffic signal stop and proceeding by using the material having liquid and a plurality of small size crystal structures is provided to reduce the install area by decreasing the volume and weight of the traffic signal light as well as to install easily. CONSTITUTION: An apparatus for displaying the pedestrian traffic signal stop and proceeding by using the material having liquid and a plurality of small size crystal structures includes a pipe line(120) provided with a crystal structure(110), a pump motor(130), a proceeding signal region(140) and a stop signal region(150). In the apparatus, the crystal structure(110) is capable of moving in the pipe line(120). And, the apparatus transmits the stop signal or the proceeding signal to the pedestrian by moving the small size crystal structures(110) from the proceeding signal region(140) to the stop signal region(150) or by moving the small size crystal structures(110) from the stop signal region(150) to the proceeding signal region(140) in response to the operational signal value of the external operational device.
Patent KR-20030063817-A (KR)
IPC: A01D25/04
Filed: 2002-01-24
Abstract: 뿌리채소(6)의 수확을 기계적으로 행하는 뿌리채소 수확기를 제공한다. 
     주행기체(2)에, 밭두렁(5)에 있는 뿌리채소(6)의 경엽부(6a)를 끼워 끌어올려서 후상방으로 매달아 반송하는 끼워올림 반송장치(16)와, 끼워올림 반송장치 (16)의 하측에 반송방향 아래쪽으로 갈수록 끼워올림 반송장치(16)로부터 이반하도록 배치하고, 매달려 반송되는 뿌리채소(6)의 경엽부(6a)를 끼워 후방으로 반송하는 사이에 뿌리채소본체(6b)의 높이를 가지런하게 하는 위치정렬 끼움반송장치(18)와, 끼워올림 반송장치(16)와 위치정렬 끼움반송장치(18)의 사이에 배치되고, 높이가 가지런해진 뿌리채소(6)의 경엽부(6a)에 작용하는 경엽절단장치(19)와, 경엽부 (6a)가 절단된 뿌리채소(6)를 위치정렬 끼움반송장치(18)로부터 이어받아서 지면근방위치까지 반송하여 밭두렁(5)에 방출하는 정렬반송장치(21)와, 절단된 경엽부 (6a)를 끼워올림 반송장치(16)로부터 이어받아서 기체(2)의 횡측으로부터 밭두렁 (5)에 방출하는 경엽방출장치(20)를 구비하고, 또한 끼워올림 반송장치(16)의 끼움 시단부 근방에, 밭에 있는 뿌리채소(6)보다 하방의 흙 속에 돌입시켜서 뿌리채소본체(6b)를 캐내는 캐내기장치(17)를 구비함과 아울러, 끼워올림 반송장치(16)의 전방에, 밭에 있는 뿌리채소(6)의 경엽부(6a)를 일으켜 세우는 전처리장치(15)를 구비한다.
Patent KR-20030068681-A (KR)
Title: Method and system for informating objective point desired using voice for gps receiver
Inventor: KIM NAM JUNG
IPC: G08G1/0968
Filed: 2002-02-15
Abstract: PURPOSE: A voice guide system for car navigation system and a method for the same are provided to prevent previously a traffic accident by providing various warning data and guide data. CONSTITUTION: A voice guide system for car navigation system includes a GPS reception portion(11), a map data storage portion(13), a key input portion(15), a control portion(17), and a voice synthesis portion(19). The GPS reception portion(11) receives radio waves from the outside and outputs the present position information. The map data storage portion(13) includes a menu setup database(13a), a road map database(13b), a guide database(13c), and a dangerous region database(13d). The key input portion(15) receives various control commands. The control portion(17) searches regions of the road map database on the basis of the present position information and outputting guide data and warning data of the guide database and the dangerous region database. The voice synthesis portion(19) synthesizes the guide data and the warning data and outputs the synthesized voice data to a speaker(21).
Patent KR-20030069365-A (KR)
Title: Method for broadcasting service in a cdma mobile communication system
Inventor: CHOI JAE AM
IPC: H04B7/26
Filed: 2002-02-20
Abstract: PURPOSE: A method for giving a broadcasting service in a CDMA mobile communication system is provided to give the same virtual mobile station IDs to mobile stations supplying the broadcasting service, thereby supplying the service to all users wanting to view a corresponding broadcasting. CONSTITUTION: A node B monitors whether a broadcasting service request is received from an optional MS(Mobile Station)(210). If so, the node B assigns an exclusive channel(212), and requests MINs(Mobile Identification Numbers) of MSs(214). The node B receives the broadcasting service request from the MSs(216), and checks whether the MINs are registered in an HLR(218). If so, the node B performs a conversion process to a virtual ESN(222), and transmits a paging message(223). If an initial response message is received(226), the node B performs a broadcasting service through the exclusive channel(228), and checks whether completion of the broadcasting service is requested(230). If so, the node B stops the broadcasting service by canceling the exclusive channel(232), and converts into inherent ESNs(234).
Patent KR-20020072218-A (KR)
Title: Process for the preparation of continuously bubbled foam
Inventor: KADOISHI TOYOSHIGE
IPC: C08J9/38
Filed: 2002-03-08
Abstract: PURPOSE: To provide a method for producing an open-cell foam by which closed cells of a closed-cell foam can be changed into open cells to produce the open- cell foam. CONSTITUTION: This method for producing the open-cell foam comprises continuously feeding the closed-cell foam F to a space between a pair of rotating rolls 1 and 2 in which the surface of at least one of rotating rolls 1 and 2 is implanted with a plurality of needlelike materials 11 under heating of the needle-like materials 11, thrusting the needle-like materials 11 on the surface of the rotating roll 1 into the closed-cell foam F, making the closed cells of the closed-cell foam F mutually communicate, converting the closed cells into open cells, thereby thrusting the heated needle-like materials 11 of the rotating roll into the closed-cell foam, melting the closed-cell foam film without causing unevennesses or wrinkles on the surface of the foam F, making mutual adjacent closed cells of the closed-cell foam F surely mutually communicate and enabling the closed cells to smoothly change into the open cells.
Patent KR-20020043462-A (KR)
Inventor: SEO DAE SHIK
IPC: E06B7/00
Filed: 2002-03-13
Abstract: PURPOSE: A transparent acrylic door with a luminous portion and acrylic materials are provided to improve the external appearance of the structure and to supply the strength and stability by the materials and to improve the effect of the reproduction for environment and accuracy more than the existing glass processing. CONSTITUTION: The transparent acrylic door with the luminous portion and acrylic materials include a luminous portion(1a), a transparent door(1b), an acrylic board(1c) and the light(1d). The luminous portion(1a) is added to the transparent door(1b) by selecting the acrylic materials. The scattering pattern is applied on the acrylic board(1c) or inside the acrylic board(1c) and thereby the mechanic processing is carried out and laser focus controlling is used. A light source portion is added to the upper and lower portions. A display portion is installed to assign the luminescence of continuous designs or letters in construction and thereby the whole outward appearance is improved beautifully.