baber/WOPTO huggingface dataset:
Patent KR-20010063857-A (KR)
Inventor: KIM JIN UNG
IPC: H01L21/311
Filed: 1999-12-24
Abstract: PURPOSE: A method for forming a micro pattern of a semiconductor device is provided to make a following process easy by improving an adhesion layer with an oxide formed in the following process by a plasma processing after baking and curing an organic low-k layer. CONSTITUTION: A metal line(13) is formed on a semiconductor substrate(11), and an organic low-k layer(15) is formed on the metal line as an interlayer insulation film. Then, an adhesion with an oxide is improved by a plasma processing of the organic low-k layer. The plasma process is performed using an Ar or a He gas under a high temperature. And, a PECVD oxide(17) is formed on the organic low-k layer. And a photo resist pattern is formed on the PECVD oxide using a photo lithography and a developing process using a contact mask revealing the metal line. Then, a contact hole(21) is formed by etching the PECVD oxide and the organic low-k layer in sequence. Then, the photo resist pattern is removed, and a polymer generated during etching the PECVD oxide and the organic low-k layer is removed using a BOE(Buffered Oxide Etchant) or an ACT solvent.
Patent KR-20010061874-A (KR)
Inventor: CHOI DONG GWON
IPC: C09K11/06
Filed: 1999-12-29
Abstract: PURPOSE: A porphine derivative-lithium complex compound is provided, which is useful as a doping material for radiating red color and has excellent color purity and stability. And an organic electricity luminous element is also provided. CONSTITUTION: The porphine derivative-lithium complex compound is represented by the formula (1) or (2). In the formulae, R is a C1-6 alkyl group, a phenyl group or a pyridyl group, wherein the phenyl group and the pyridyl group are non-substituted or substituted by a C1-4 alkyl group or a C3-7 aryl group. The organic electricity luminous element contains a luminous material, wherein 0.5-30 wt.% of the porphine derivative-lithium complex compound is doped, as an organic luminous layer.
Patent KR-20010065187-A (KR)
Inventor: KANG YANG BEOM
IPC: H01L21/76
Filed: 1999-12-29
Abstract: PURPOSE: A method for reducing a pattern difference of a semiconductor device is provided reduce a step coverage by generating facet phenomenon intentionally on an edge of a pattern. CONSTITUTION: At first, pad oxide layer(22) and a pad nitride layer(23) are sequentially formed on a silicon substrate and patterned and exposed silicon substrate is etched to form a trench(24). Then, a trench burying oxide layer is formed on the overall structure including the trench and polished to expose the pad nitride layer and the exposed pad nitride layer is removed. At third, the facet phenomenon is initiated on the edge of the trench burying oxide layer to form a device isolation layer which has a slant edge portion. At last, the pad oxide layer and a natural oxide layer left on the silicon substrate are removed. The facet phenomenon further is initiated by performing blanket dry etching by a dry etching device.
Patent KR-20010058555-A (KR)
Inventor: LEE SEOK GEUN
IPC: H04B1/38
Filed: 1999-12-30
Abstract: PURPOSE: A display unit driving apparatus of a folder type cellular phone is provided to block the power supplied to the built-in display unit in a state that the folder of the folder type cellular phone using built-in and external type display units is closed, thereby extending the using time of a battery. CONSTITUTION: A lid switch(32) detects the state of closing/opening the folder. A control unit(30) controls power supplied from a battery to drivers of a built-in display unit and an external display unit by the closing/opening state detecting signal of the folder outputted from the lid switch(32). A switching unit(42) is connected to the built-in display unit(34) and the external display unit(38), respectively, and controls the supply of power. The lid switch(32) is mounted to a body of the cellular phone and when the folder is closed, it is turned on by magnet mounted to the folder and when the folder is opened, it is turned off because the magnet and the lid switch(32) are isolated.
Patent KR-20010059791-A (KR)
Inventor: KIM JAE BEOM
IPC: H04B1/48
Filed: 1999-12-30
Abstract: PURPOSE: A slope functional duplex is provided to occupy a small mounting size and be manufactured as a high degree of separation, a low inserting loss, and a micro type by inserting a composition material with an other kind of a dielectric constant into a dielectric block and obtaining a resonating frequency according to an impedance difference. CONSTITUTION: Residual surfaces except for an open surface in which a transmission line is led are covered as a conductive material on a dielectric block. A plurality of holes(H1-H7) are penetrated in a resonating unit for performing a resonance from the open surface of the dielectric block to a surface located in a direction opposite with the open surface. Gaps are formed in the holes(H1-H7) of the resonating unit for performing a signal transmission function by an electromagnetic field combination between the holes(H1-H7). Coupling patterns are formed in a coupling unit. Transmitting and receiving ports(13a,13c) and an antenna port(13b) are installed in a transmitting and receiving unit for processing signals transmitted and received to the dielectric block. A channel electrically connects the transmitting and receiving ports(13a,13c) with the antenna port(13b). An electrode unit is formed in residual surfaces except for a part of the dielectric block for performing a signal shield and grounding function. A stepped difference impedance unit inserts composition materials with other dielectric constants into a space between a circumference surface of the dielectric block and a circumference surface of the holes(H1-H7) of the resonating unit for generating an impedance difference by each dielectric constant.
Patent KR-20000068266-A (KR)
Title: 전기적 부도체 기판의 정전기 파우더 코팅
IPC: C09D5/46
Filed: 1998-06-18
Abstract: 본 발명의 파우더 코팅 방법은 전기적 부도체 기판의 표면에 정전기 방지 물질을 도포하는 단계를 포함한다.  정전기 방지 물질은 양호하게는 지방 아민염이고, 스프레잉에 의해 도포된다.  정전기적으로 충전된 파우더 입자들의 플로우는 기판 쪽으로 향하게 되어 기판 상에 파우더 코팅을 형성한 다음, 파우더 코팅은 경화된다.
Patent KR-20000069793-A (KR)
IPC: G11B20/00
Filed: 1998-11-02
Abstract: 입력된 음악 신호와, 선전 음성 신호를 합성부에서 합성하고, 이 합성된 신호를 제1 부호화부에서 부호화한다.  선전 음성 신호를 제2 부호화부에서 부호화함 과 동시에 암호화하고, 부호열 합성부에 보내어, 제1 부호화부의 출력과 합성한다.  이 부호열 합성된 신호는, 암호화의 키 정보가 없으면, 선전 음성이 합성된 음악 신호가 재생할 수 없지만, 암호화된 신호를 복호함으로써, 합성된 신호로부터 선전 음성 신호 성분을 캔슬하여, 음악 신호만을 재생할 수가 있다.  이에 따라, 암호화의 키 정보가 없어도 정보 신호를 불완전한 상태(여분의 신호가 부가된 상태)에서 재생할 수가 있어, 키 정보가 있으면 완전한 상태로 재생할 수가 있다.
Patent KR-20000070618-A (KR)
Title: 편평한 패널 디스플레이 스크린 구조상에 컬러 필터 층을 형성하는 방법
IPC: G02B5/20
Filed: 1998-02-10
Abstract: 스크린 디스플레이 구조에 컬러 색소 결정입자를 더 양호하고 효과적으로 점착할 수 있는 디스플레이 스크린상으로의 컬러 필터 형성 방법이 개시된다. 일 실시예에서, 본 발명은 화소 형성 구조를 가진 유리 기판상에 컬러 필터를 형성한다. 본 실시예에서는 컬러 색소 결정입자와 폴리비닐 알콜 용액을 혼합함에 의해 컬러 필터 슬러리를 형성한다. 다음에, 컬러 필터 슬러리는 디스플레이 스크린의 내측 표면에 가해진다. 그후, 슬러리가 건조된다. 건조된 컬러 필터 슬러리는 디스플레이 스크린의 외측에서의 자외선광에 노출된다. 자외선광은 포토마스크 및 디스플레이 스크린을 통해 컬러 필터 슬러리를 노출시킨다. 이때, 컬러 필터 슬러리의 과잉 층이 제거되어, 유사한 파장을 가진 광은 투과되고 상기 컬러 색소 결정입자와 다른 다른 파장의 광은 흡수되어 걸러지도록 원하는 투과 파장의 컬러 필터를 남기게 된다.
Patent KR-20000076050-A (KR)
Title: 연속 녹음 능력을 가진 이동 전화기
IPC: H04M1/656
Filed: 1998-02-24
Abstract: 이동 전화기는 수신기, 송신기, 마이크로프로세서 및 관련 메모리를 구비한다. 그 메모리는 선입 선출 대기열 및 정적 버퍼를 포함한다. 상기 이동 전화기에 의해 운반된 음성 신호는 디지털화되어 마이크로프로세서에 제공된다. 그 결과 디지털 신호는 상기 FIFO 대기열에 연속적으로 기록된다. 상기 이동 전화기 사용자로부터의 제1 명령에 응답하여, 상기 마이크로프로세서는 상기 FIFO 대기열의 내용이 정적 버퍼를 전달되게 한다. 상기 사용자로부터의 제2 명령시, 상기 버퍼의 내용은 아날로그 신호로 변환되어 상기 이동 전화기의 스피커를 걸쳐 재생된다.
Patent KR-20010006089-A (KR)
Title: 사이토메갈로바이러스 감염 치료용 조성물 및 방법
IPC: A61K31/712
Filed: 1998-04-07
Abstract: 본 발명은 CMV 감염 치료용 조성물 및 방법에 관한 것이다.  안티센스 올리고뉴클레오티드는 효과적인 항바이러스제이다.  바람직한 구체예에서 올리고뉴클레오티드는 하나 이상의 2'-메톡시에톡시 변형을 포함하고, 키메릭 올리고뉴클레오티드일 수 있다.
Patent KR-20010013464-A (KR)
Title: 유동매질의 질량을 측정하기 위한 측정장치
IPC: G01F5/00
Filed: 1999-01-28
Abstract: 본 발명은 관(2)에서 주유동방향을 따라 흐르는 매질, 특히 내연기관의 흡입공기량을 측정하기 위한 측정장치(1)에 관한 것이다.  이 측정장치(1)는 주위로 유동매질이 흐르는 측정소자(21)를 포함한다.  상기 측정소자(21)는 관(2)에 제공된 측정채널(33)에 배치된다.  상기 측정채널(33)은 이 측정채널(33)의 입구(36)로부터 굴곡채널(34)까지 축방향으로 연장된다.  이 굴곡채널(34)은 측정장치(1)의 외면(45)에 배치되며 관(2)과 연결되는 출구(46)로 안내된다.  출구(46)의 주위에는, 이 출구(46)를 포함하는 측정장치(1)의 외면(45)에 제공된 적어도 하나의 융기부(50)가 제공된다.
Patent KR-20010013860-A (KR)
IPC: C22C38/14
Filed: 1998-07-10
Abstract: An aluminium-based alloy consisting of 0,10 - 0,40% by weight of iron, 0,05 - 0,25% by weight of silicon, 0.05 - 0,20% by weight of zirconium and the balance aluminium and incidental impurities, said aluminium-based alloy exhibiting high corrosion resistance and high tensile strength. Optional elements are 0,05 - 0,40% by weight of manganese and 0,05 - 0,30% by weight of chromium.
Patent KR-20010013968-A (KR)
Title: 밧데리 테스트 및 등급분류 방법 및 장치
IPC: H02J3/06
Filed: 1998-06-19
Abstract: 밧데리 평가 및 등급분류(classification)를 하는 방법 및 장치는 자동차 밧데리에 트랜젼트(transient) 마이크로챠지 및/또는 마이크로로드 펄스를 적용하는 것이다.  등급분류는 합성 전압 프로필 또는 그 부분 또는 치수를 분석한 것에 기본하여 이루어진다.  제 1실시예에서는, 상기 분석에 뉴널 네트워크 또는 알고리즘을 활용하여, 등급분류에 영향을 미치는 전압 특성과 같은 임피던스를 구비하는 일련의 밧데리 매개변수의 어느 하나를 사용하는 마이크로사이클 시켄스로 이루어진 마이크로로드/마이크로챠지 테스트를 액세스 하였다.  제 2실시예는 자체-유기적인 뉴널 네트워크용의 종래 테스트에 기본한 데이터 트레이닝의 최적한(최대가 아님) 레벨을 채택하는 것이다.  제 3실시예는 뉴널 네트워크의 사용이 없는 알고리즘에 기본한 등급분류가 이루어지도록 종래 테스트 데이터와의 상호 관계를 활용하는 것이다.
Patent KR-20010014095-A (KR)
Inventor: KELLY EDMUND J
IPC: G06F9/455
Filed: 1997-08-11
Abstract: A memory controller for a microprocessor including apparatus to both detect a failure of speculation on the nature of the memory being addressed, and apparatus to recover from such failures.
Patent KR-20010068420-A (KR)
Title: Method of an electric business using an internet broadcasting system
Inventor: CHOO U SANG
Filed: 2000-01-05
Abstract: PURPOSE: An electronic commerce method using an Internet broadcast is provided to enable a user who accesses a web site on the Internet to buy a necessary product while he/she watches a desired program, by allowing the user to do shopping with enjoying a program held by a shopping host. CONSTITUTION: A supplier(12) provides various products. An operation center(16) loads the products provided by the supplier(12) on the shopping host, and executes sale and payment for a seller and a buyer, and provides the Internet broadcast. A user as a viewer may buy the products offered by the supplier(12) via a communication line(20) such as the Internet, while the user watches the broadcast program supplied from the operation center(16).
Patent KR-20010076652-A (KR)
Title: pants for infant
Inventor: JO EUN KYEONG
IPC: A41B13/04
Filed: 2000-01-27
Abstract: PURPOSE: Provided are infant pants to improve the convenience and promptitude in exchanging diapers by cutting the pants from the lower part of the umbilicus to the upper part of hips and by attaching a diaper to the cut part. CONSTITUTION: Infant pants include a main body(10) and a bottom cover(20) to part as a diaper cover. The bottom cover(20) has diaper fixing bands(22) for attaching a diaper inside and Velcro tapes(21,12) for attaching/detaching the bottom cover(20) to/from the main body(10). The fixing bands(22) are placed on an upper and a lower sides to insert the diaper inside the bottom cover(20). Otherwise, the upper part of hips of the bottom cover(20) is sewed on the main body(10) and the lower part of the umbilicus of the bottom cover(20) is attached/detached to/from the main body(10) by the Velcro tapes(21,12).
Patent KR-20000049390-A (KR)
Inventor: KIM JAE HO
IPC: A45D20/14
Filed: 2000-02-09
Abstract: PURPOSE: A hair humidifier is provided, which treats hair with cool and warm humid air. CONSTITUTION: A hair humidifier comprises a humidification (humid air) generator part (10) provided with the ultrasonic wave vibrator generating humid air; a cool humidification pipe (20) connected with the humidification generator part (10); a warn humidification pipe (40) which is connected wit the humidification generator part (10) and has a heater (30); a distribution tank (80) which has a distribution entrance pipe (50) connecting the cool/warm humidification pipes (20, 40) and distributes cool humid air and warm humid air; and a control part which controls the power supply to the heater (30), the intensity of the humidification generator and the set time.
Patent KR-20010049207-A (KR)
Inventor: HUH WON KI
IPC: C09K17/14
Filed: 2000-02-10
Abstract: PURPOSE: A lime remover which easily decalcifies calcareous, and a method for preparing the same are provided. CONSTITUTION: The lime remover is an aqueous solution containing 1-10% of chitosan, acid to cationize the chitosan, and 5-10% of metal blocking agent such as ethylene diamine tetraacetic acid, diethylene triamine pentaacetic acid and sodium tripolyphosphate. The method comprises steps of: (i) after pouring water in a first reacting tank, injecting chitosan thereto to contain 1-10% of the chitosan with stirring; (ii) injecting acid to the first reacting tank with stirring to dissolve the chitosan; (iii) pouring metal blocking agent in a second reacting tank and adding acid thereto with stirring to have the pH value of 6-7; and (iv) pouring the solution contained in the second reacting tank in the first reacting tank to contain 5-10% of the metal blocking agent with stirring.
Patent KR-20010083440-A (KR)
Inventor: WON IN HO
IPC: A61H23/02
Filed: 2000-02-14
Abstract: PURPOSE: Provided is a production process of a selection vibration mattress which selects a vibration part partially or entirely so that it helps to select massage function partially or entirely with cushion effect. CONSTITUTION: The production process of the selection vibration mattress is characterized by placing a vibrator(B)(B1)(B2) under the mattress(1) to adhere a rotation sinker to both sides of a motor and then setting a ringed motor support tool at both edges of the motor to fix to a motor case, connect the motor case to a stick plate and bind a vibration transfer pole to both upper edges of the stick plate for being fixed to a binding tool for the transfer pole in the upper support plate of the mattress.
Patent KR-20010083444-A (KR)
Title: A multi-functional fabric for summer uniform, and a process of preparing for the same
Inventor: KO GYEONG CHAN
IPC: D03D15/00
Filed: 2000-02-15
Abstract: PURPOSE: A process for preparing the titled fabric by using a modified cross-section yarn in the form of a four-leaf clover as warps and a yarn covered with spandex elastic yarn on the modified cross-section yarn as wefts is provided. Whereby the obtained fabric has excellent elasticity and ultraviolet rays shielding property as well as sweat absorptive quick drying property. CONSTITUTION: A modified cross-section yarn(1) in the form of a four-leaf clover as warps and a yarn covered with spandex elastic yarn(2) on the modified cross-section yarn as wefts are weaved to produce a base fabric, which is dyed and subjected to ultraviolet-rays shielding treatment to produce the titled fabric for multifunctional summer working dress.
Patent KR-20010083700-A (KR)
Title: Gun barrel wear measurement system and method thereof
Inventor: JUNG DONG YUN
IPC: G01B11/00
Filed: 2000-02-21
Abstract: PURPOSE: Measuring device and method for abrasion of a gun barrel are provided to precisely estimate life span of a gun while precisely measuring abrasion state of the gun barrel, and to estimate abrasion tendency of the gun barrel by minimum amount of shots. CONSTITUTION: An indentation photographing instrument(110) is formed by a detect unit(111) for detecting indentations(2) formed on inner surface of a gun barrel(1); a Y-axis transfer unit(112) for transferring the detect unit toward a Y-axis; a Z-axis transfer unit(113) for transferring the Y-axis transfer unit toward a Z-axis; a connect rod(114) for pushing the transfer units into the gun; front and rear handles(115,115') at front and rear ends of the connect rod; and an adjuster(116) for adjusting the transfer units. Light from a light source through an optical cable is transferred to the inner surface of the gun through a reflecting mirror and a spectroscope. Then, the light is transferred to a camera by passing through an optical lens and the spectroscope for being displayed on a monitor(120). Moreover, adjusting switches(171,172) are installed on the adjuster for rotating Y-axis and Z-axis driving motors. A video output terminal of the adjuster is connected to an input terminal of the monitor, and an output terminal of the monitor is connected to an input terminal of a printer(130).
Patent KR-20000030401-A (KR)
Inventor: KIM JI HONG
Filed: 2000-02-28
Abstract: PURPOSE: A money approving method for internet electronic commercial transaction is provided to safely perform an electronic commercial transaction by encoding data read from a card and data related to a buying and transmitting the encoded data to an information telecommunication company. CONSTITUTION: A card reading system(110) for a PC reads data stored in a card using a none-chip microprocessor, converts the read data into a character series to be recognized in a computer, and transmits the converted character series to a personal computer(100) using a communication port. The personal computer(100) is connected to an information telecommunication company(130) using a telephone line when the personal computer(100) for installing the card reading system(110) operates a credit card settling program and a card inputs the card reading system(110). Card information of a user read from the card reading system(110) and a member store data are transmitted to the information telecommunication company(130). The information telecommunication company(130) is connected to a finance settlement institute for investigating a credit to a corresponding card, and is connected to a corresponding card company for checking a card limit and an accident situation of a member to perform a money settlement.
Patent KR-20010084698-A (KR)
Title: Lid opening device of Electric induction heating type rice cooker
Inventor: JUNG HEON DEOK
IPC: A47J27/08
Filed: 2000-02-28
Abstract: PURPOSE: A device for opening a lid of an electric pressure cooker is provided to promote the productivity of an electric pressure cooker by compacting structure and improving assembling efficiency. CONSTITUTION: A lid opening device of an electric pressure cooker includes: a cylindrical recessed groove(13) integrated with a body case; a fitting ledge(131) formed in the upper portion of the recessed groove; a push pin(30) having an annular ledge(301) to be settled in the recessed groove; a compression spring(34) fitted in the push pin; and a fixing ring(38) fitted in the fitting ledge to prevent the displacement of the push pin. The lid opening device is simply assembled by inserting the push pin in the recessed groove and fitting the fixing ring in the fitting ledge. Therefore, structure is compacted and the productivity of an electric pressure cooker is promoted.
Patent KR-20010088023-A (KR)
Title: Manufacture method and spinning machine for jumbo tube
Inventor: PARK YUN SO
IPC: B21D51/00
Filed: 2000-03-10
Abstract: PURPOSE: A method and a machine for forming a large scale high pressure gas container (jumbo container) are provided to improve productivity by remarkably shortening the time compared to an existing method, reduce fuel, smoothly form a thick pipe, enable up to the outer diameter of 350 to 610 mm to be formed, and prevent cracking of the neck part of the container. CONSTITUTION: The method for forming the head part of a large scale high pressure gas container (jumbo container) comprises the steps of confirming whether the pipe is vibrated or not and the center of the pipe by closing the cover of a steady rest (8) and rotating a main axis at a low speed after mounting a raw material pipe to a chuck (14); heating the formed portion of the pipe using a pipe end heating furnace as rotating the main axis at a low speed; and forming a pipe which is already heated by reciprocation of a spinning cylinder (9) due to a hydraulic cylinder (2) and the up and down curve reciprocation of formed spins after descending a cushion cylinder for preventing vibration of the pipe.
Patent KR-20010091080-A (KR)
Title: Method of transmitting a url through communication channels and accessing internet by using the url
Inventor: KIM JIN UK
IPC: H04W4/12
Filed: 2000-03-13
Abstract: PURPOSE: A method for transmitting a URL(Universal Resource Locators) through a communication channel and an Internet connection method using the same are provided to transmit the URL using an SMS system and detect the URL from an SMS message transmitted through a mobile communication channel to be connected to the Internet using the detected URL. CONSTITUTION: In case that a URL is included in a message to be transmitted to a mobile station, a short message generating server adds an inputted URL to a URL classifier, generates a URL message including the URL and the URL classifier, and provides the generated URL message to an MC(S21,S22). The MC receives the message including the URL and the URL classifier and forms an SMS message according to a general SMS system, e.g., an IS-637(S23). In case of a CDMA mobile communication system, the BTS(Base Transceiver Subsystem) provides the SMS message to a mobile station according to an IS-95A(S24).
Patent KR-20000071512-A (KR)
Title: 잉크 롤러 조립체 및 프린트 방법
IPC: B41K1/34
Filed: 2000-03-30
Abstract: 본 발명은 모세관 형상의 잉크 계량 유닛과, 둘러싸인 다공성의 잉크 유지 슬리브를 구비하는 잉크 롤러 조립체의 다양한 실시예에 관한 것으로서, 상기 계량유닛은 서로에 대하여 연결된 한 쌍의 모세관 섹션을 포함하고, 상기 모세관 섹션은 통로에 의하여 서로 연결되는 중간의 잉크 모세관실(capillary chamber)을 가진 디스크와 중공의 축을 포함한다.  다른 실시예에서, 모세관 잉크 계량 유닛은 강성의 축에 있는 디스크를 포함하고, 모세관실을 서로 연결하는 통로가 있다.  다른 실시예에서, 분리된 섹션은 서로 다른 색깔, 점도 및/또는 형태의 잉크가 프린트 부재에 적용되도록 제공된다.  또한, 이러한 영역의 크기 작용으로서 또는 그에 따른 서로 다른 면 또는 영역을 가지는 프린트 부재에 잉크를 계량하기 위하여 제공된다.  상기 분리된 섹션을 가지는 잉크 롤러 조립체는 코딩(coding) 목적을 위하여 가시성의 잉크와 교대로 가시성인 잉크를 운반할 수 있다.
Patent KR-20000063064-A (KR)
Title: 웨트 티슈 포장체
IPC: A47K10/42
Filed: 2000-03-30
Abstract: 봉지형 포장체의 개구부로부터 웨트 티슈를 취출하면, 1장의 웨트 티슈가 구겨진 상태로 나온다.  따라서 손으로 전개하고, 또한 오물 처리를 위해서는 전개 후에 2겹으로 접을 필요가 있다. 
     본 발명의 웨트 티슈(11)는 제1 접음선(L1)에 의해 2겹으로 접혀지고, 또한 복수의 접음선에서 포개어져 있다.  그리고 상기 제1 접음선(L1)이 포장체(1)의 개구부(3)에 나타나 있다.  이 제1 접음선(L1)을 쥐고 들어 올리면, 2장으로 접혀진 상태로 취출되어 사용할 수 있다.  따라서 인출한 후에 2겹으로 접을 필요가 없고, 2장으로 포갠 상태로 오물 처리 등에 사용할 수 있다.
Patent KR-20000037019-A (KR)
Inventor: YUN JOO HYONG
Filed: 2000-04-04
Abstract: PURPOSE: A method for selling apartments and stores using internet and electronic commerce transaction system connecting the apartments and stores is provided so that in a request for purchasing a house, a user can apply easily by obtaining multimedia, three dimensional image and voice information on houses in a cyber space. CONSTITUTION: A method for selling apartments and stores using internet and electronic commerce transaction system connecting the apartments and stores includes several steps. A step is to log-in a web site providing information on landed estate including houses or stores through internet. A step is to display multimedia information including three dimensional image and voice information on houses in a cyber space according to the selection of the user. A step is to calculate total purchasing cost and to apply for purchasing of the house or store in the internet. A step is to provide a home page on the item for purchasing in response to the request of the user.
Patent KR-20010094793-A (KR)
Title: Win win site e-business model
Inventor: KIM JAE SONG
Filed: 2000-04-06
Abstract: PURPOSE: A win-win site E-business model is provided to secure many members of electronic commerce companies as a portal site, a special portal site, and E-mail company by supplying a bonus to each member through a lottery. CONSTITUTION: An environment induces users to contact to a site by supplying a predetermined bonus to each member. For example, the bonus is supplied to one hundred persons, two hundred persons, or three hundred persons. The amount of the bonus is hundreds of thousands won. The bonus is supplied per one month, every other month, or every three month.