baber/WOPTO huggingface dataset:
Patent KR-20000010486-A (KR)
Title: Connecting pipe protective cover for outdoor air conditioner
Inventor: KIM YU IN
IPC: F16L57/00
Filed: 1998-10-27
Abstract: PURPOSE: A connecting pipe line protecting cover for an outdoor unit is provided to prevent a pipe line connected to the outdoor unit from being exposed and prevent damage on the insulation cover. CONSTITUTION: The protecting cover comprises; a front panel(110), rear panel(160) and side panels(112) to embrace the radiating device composed of a compressor and a condenser; a discharge pipe(126) and an intake pipe(136) connecting to the 1st and 2nd connector(120,130) and an insulation cover(142) to cover them; the insulation cover(142) has the 1st and 2nd insulator(146,146a) and a tape(144) to cover them; the 1st and 2nd connector(120,130) has the 1st and 2nd service valve(122,132) respectively.
Patent KR-20000027298-A (KR)
Title: Circuit and method for sector protection in flash memory cell
Inventor: KIM UI SEOK
IPC: G11C29/00
Filed: 1998-10-27
Abstract: PURPOSE: A circuit and method for sector protection in a flash memory cell is provided to prevent a device fail because a sector protection is not performed. CONSTITUTION: A decoder circuit(1) receives first and second addresses inputted from the outside and outputs the first to the fourth sector addresses. First to forth sector circuits(2,..,5) receives first to fourth sector addresses outputted from the decoder circuit(1) and outputs first to fourth sector protection recovery signals. A detecting unit(6) receives first to fourth sector protection recovery signals outputted from first to forth sector circuits(2,..,5) and identifies whether a sector protection recovery is performed. First to forth sector circuits(2,..,5) perform an operation of the sector protection repair when occurring a fail of the sector protection.
Patent KR-20000027784-A (KR)
Title: Method for forming isolation layer of semiconductor devices
Inventor: LEE WON CHANG
IPC: H01L21/76
Filed: 1998-10-29
Abstract: PURPOSE: A formation method of an isolation layer having BC-SOI(body contacted silicon-on-insulator) structure is provided to reduce a well resistance and achieve stable isolation property by differently forming a buried oxide according to spaced distance of the isolation layer. CONSTITUTION: A photoresist pattern(23) for exposing wide spaced isolation region is formed on a silicon substrate(21), and then oxygen ions are implanted into the silicon substrate(21) using the photoresist pattern(23) as a mask. By performing ion-activation process, buried oxide layers(25) are differently formed in the silicon substrate(21) in accordance with an isolation spaced distance. The depth(ta) of the buried oxide layer(25a) formed in widely spaced isolation region is deeper than that(tb) of buried oxide layer(25b) formed in narrowly spaced isolation region. Using an oxidation protection pattern(29) as a mask, isolation layers(31) having differently spaced distance are formed.
Patent KR-19990062545-A (KR)
Title: 전원 회로
IPC: H02M3/00
Filed: 1998-10-30
Abstract: 본 발명은 제1부하 및 제2부하에 전원을 공급하는 전원 회로에 관한 것으로, 이러한 본 발명은, 배터리 전압을 발생시키는 충전용 배터리와, 상기 발생되는 배터리 전압을 전원공급 전압으로 변환하는 배터리와 연결되고, 동작 모드에서 상기 전원공급 전압을 상기 제1부하에 제공하는 제1변환기와, 상기 배터리와 연결되며, 배터리 전압을 전원공급 전압으로 변환하여 동작 모드동안 변환된 전원공급 전압을 상기 제2부하 제공하고 외부 전압을 충전 전압으로 변환하여 충전 모드동안 상기 변환된 충전전압을 상기 충전 배터리로 제공하는 제2변환기를 구비하고 있음을 특징으로 한다.
Patent KR-20000032215-A (KR)
Title: Apparatus for automatically sensing thermal distribution
Inventor: BAEK HYUK JAE
IPC: G01V8/00
Filed: 1998-11-13
Abstract: PURPOSE: An apparatus for sensing automatically thermal distribution is provided to trace locations of marine living things by using a thermal distribution detected from living thing when collecting marine living things. CONSTITUTION: An apparatus for sensing automatically thermal distribution comprises infrared sensors(A1-An), a comparison portion, and a display portion(20). The infrared sensors senses the temperature of living things located at the different directions. The comparison portion compares levels of sense signals detected from the infrared sensors. The display portion displays a location for detecting the maximum sense signal from the comparison portion.
Patent KR-19990045471-A (KR)
Title: 반도체장치 및 그 제조방법
IPC: H01L21/60
Filed: 1998-11-20
Abstract: 필름상 기판과 이 필름상 기판의 상면에 적층상으로 접합된 반도체칩을 포함하는 반도체장치이다. 
     상기한 반도체칩은 복수의 단자패드가 형성된 주면을 갖고 있고, 상기한 필름상 기판은 그 하면에 매트릭스상으로 배치된 복수의 외부접속용단자부를 가짐과 동시에 그 상면에 상기한 각 외부접속용단자부와 도통하는 복수의 배선패턴이 형성되어 있으며, 또한 상기한 필름상 기판의 상면의 각 배선패턴은 상기한 반도체칩의 주면에 형성된 단자패드와 각각 전기적으로 도통되어 있다.
Patent KR-20000040288-A (KR)
Title: Structure for installing temperature sensor of kimchi storage box
Inventor: SON BU YEON
IPC: F25D11/00
Filed: 1998-12-17
Abstract: PURPOSE: An installation structure of a temperature sensor of a Kimchi storage box is provided to control temperature accurately to a desired temperature by turning on/off a cooling and warming system. CONSTITUTION: A temperature of a Kimchi storage box(36) containing food such as Kimchi is sensed directly by forming a sensor installation groove(32a) on one side wall of an inner case(36). A sensor is installed therein. A thermal infrared sensor(56) as a piece for sensing the temperature in the inner case is installed. The thermal infrared sensor is arranged horizontally to face a metal plate(40) inserted to the Kimchi storage box. The temperature transmitted via the metal plate in the Kimchi storage box is transmitted to a control part via a wire(54).
Patent KR-19990037598-A (KR)
Title: 열교환기용 부품 세척 치구
IPC: F28G11/00
Filed: 1998-12-21
Abstract: 열교환기용 부품 세척 치구가 개시된다. 개시된 발명은 소정 형상의 프레임으로 되어 세척 대상물을 삽입하는 공간이 형성된 케이지와; 상기 케이지의 양측에 설치되는 것으로 평판으로 되어 다수의 관통공이 형성된 지지플레이트와; 상기 지지플레이트에 설치되는 복동이동수단과; 상기 복동이동수단에 나사결합되어 상기 지지플레이트 간 폭의 조정이 가능하도록 설치되는 가이드플레이트; 및 상기 각 가이드플레이트에 설치되는 것으로, 양측 방향에서 상기 세척 대상물을 내측으로 탄성바이어스 시키는 복수개의 탄성수단;을 구비하는 것을 특징으로 하며 자동화에 대응이 가능한 이점이 있다.
Patent KR-20000043960-A (KR)
Title: Method for controlling power of outer loop when applying soft hand-off
Inventor: HAN JONG SEON
IPC: H04B7/005
Filed: 1998-12-29
Abstract: PURPOSE: A method for controlling a power of an outer loop when applying a soft hand-off is provided to variably control up step/down step size rates for a power control threshold value of a reverse link when applying the soft hand-off, according to base station numbers in a soft hand-off active set. CONSTITUTION: A method for controlling a power of an outer loop when applying a soft hand-off comprise the steps of: checking each of frame errors received to base stations themselves by base stations in the soft hand-off active set, according to the soft hand-off for an optional mobile station; deciding frame error rates targeting in each station of the active set, according to the frame error checking results, previously checked frame error results and base station numbers in the active set; and deciding an up step/down step size rates(B) for the power control threshold value of the base stations, according to the decided target frame error rates(B) of each base station.
Patent KR-20000044191-A (KR)
Title: Manufacturing method of thin-film type optical path adjustor enable to prevent point defect of pixel
Inventor: KIM JUN MO
IPC: H04N5/66
Filed: 1998-12-30
Abstract: PURPOSE: A manufacturing method of thin-film type optical path adjustor is provided to prevent the point defect of pixel generated due to sticking phenomenon of an actuator. CONSTITUTION: A manufacturing method of thin-film type optical path adjustor enable to prevent point defect of pixel comprises steps of: providing an active matrix containing a metal layer having a drain pad extended from a drain of a MOS transistor; stacking a sacrifice layer on the active matrix, deeply etching the sacrifice layer on the drain pad and both adjacent portions of the drain pad, and angularly etching the sacrifice such that portions extended between the deep etched portions along direction crossed with the deep etched portions can become gradually narrower; stacking a first layer on the sacrifice layer; forming a bottom electrode layer, a second layer and a top electrode layer on the first layer and then sequentially patterning them to form an actuator containing first, second top electrodes, first, second deformation layers and bottom electrode; patterning the first layer to form a supporter; and forming a mirror on the actuator.
Patent KR-20000044527-A (KR)
Title: Device for user interface of wireless subscriber connection equipment
Inventor: LEE SANG SEOL
IPC: H04B7/00
Filed: 1998-12-30
Abstract: PURPOSE: A device for a user interface of a wireless subscriber connection equipment, is provided to transmit data without an error as a telephone set and a facsimile are operated by being interfaced respectively separately. CONSTITUTION: A device for a user interface of a wireless subscriber connection equipment, comprises an interface device of a telephone set(210), an interface device of a facsimile(220) and a central processing unit(CPU,240). The interface device of a telephone set(210) senses current variation according to hook-off of the telephone set, and outputs by converting the sensed current variation into digital sense data. The interface device of a facsimile(220) senses current variation according to hook-off of the facsimile, and outputs by converting the sensed current variation into digital sense data. And the CPU(240) controls a call connection operation by dividing into a telephone set mode and a facsimile mode, according to an input of sense data outputted from the interface devices of the telephone set and the facsimile. The CPU further performs an operation controlling a formation of a speech line through a coder-decoder(CODEC,230), when a call is formed according to an operation of a standard telephone set mode. The CPU further performs an operation controlling a formation of a speech line through a facsimile modem(250), when a call is formed according to an operation of a facsimile mode.
Patent KR-20000045323-A (KR)
Title: Scanner equipped with focusing and leveling system
Inventor: IM DONG GYU
IPC: G06K7/10
Filed: 1998-12-30
Abstract: PURPOSE: A scanner is provided to increase the efficiency and productivity by equipping a focusing and leveling system so that wrong information does not be fed back automatically when focusing and leveling. CONSTITUTION: A scanner makes planned light irradiated on the face of a wafer through a fringe to detect the surface of the wafer placed on the scanner. And by using the equipped detector to sense the light reflected from the surface of the wafer, when the device detects the information of the wafer, the device makes the difference, which is made in an irregular topology or the edge of the wafer, distorted. And the difference is fed back to the focusing/leveling detector sensor. So such data does not be fed back to the focusing/leveling results.
Patent KR-20000046150-A (KR)
Title: Format conversion device
Inventor: PARK TAE JOON
IPC: H04N5/445
Filed: 1998-12-31
Abstract: PURPOSE: A format conversion device is provided to convert the data format in order to enable data exchange between IEEE 1394 serial bus and VSB-R(Vestigial Side Band Remodulator). CONSTITUTION: A format conversion device includes a first selector(702), a second selector(703), an OSD information detector(705), a format converter(603) and a multiplexing/data rate controller(707). The first selector(702) selects m(1 or bigger) channels out of M isochronous channels. The second selector(703) selects n(1 or bigger) channels out of N asynchronous channels. The OSD information detector(705) analyzes the control commands in the output of the second selector and detects the information related to OSD. The format converter(603) converts the OSD related information and packetizes into transport packet structure. The multiplexing/data rate controller(707) multiplexes the output of the first selector and outputs the multiplexed data rate according to the band of the second format.
Patent KR-20010016643-A (KR)
Title: Organic polymer for preventing diffused reflection and process for producing the same
Inventor: BAEK GI HO
IPC: G03F7/023
Filed: 1998-12-31
Abstract: PURPOSE: Provided is an organic polymer for preventing diffused reflection, which can be used as an antireflection film in a hyperfine pattern forming process using 193 nm ArF and 248 nm KrF light in a semiconductor process. CONSTITUTION: The organic polymer for preventing diffused reflection is represented by the formula 1, the formula 2, and the formula 3. The polymer of the formula 1 is produced by polymerizing a polystyrene resin and diazonaphthoquinon halide. The polymer of the formula 2 is produced by polymerizing a poly(styrene-acrylate) resin and the diazonaphthoquinon halide. The polymer of the formula 3 is produced by polymerizing a novolak resin and the diazonaphthoquinon halide. In the formula, R is hydrogen, C1-C6 alkyl, hydroxy, or hydroxymethyl, m:n represents a molar ratio of 0.1-0.9:0.1-0.9, X is an integer of 1-5, m:n:o:p represents a molar ratio of 0.1-0.9:0.1-0.9:0.1-0.9:0.1-0.9, R1 is hydrogen, methyl, or hydroxy, and n is an average degree of polymerization.
Patent KR-19990036190-A (KR)
Title: 미끄럼 조정식 자동차 브레이크 장치용 유압식 연결기계 및 그 제조방법
IPC: B60T8/36
Filed: 1996-07-25
Abstract: 본 발명은 유압블록(12)이 끼워진 수납보링(14)을 구비한 자석밸브(16)를 포함하고 있는 유압식 연결기계(10)에 관한 것이다. 움직이지 않도록 고정할 시에 상기 자석밸브(16)는 소정압력에 의해 상기 수납보링(14)의 외주지점에 닿아 상기 자석밸브(16)를 교호운동시킬때에 동작하면서 유압블록(12)의 물질을 밀어내게 된다. 이것을 방지하기 위해 본 발명은 수납보링(14)내에 끼워진 고정링(36)이 달린 고정장치를 제공한다. 상기 고정링의 칼라(40)는 축상운동이 끝나는 상태가 되면 상기 자석밸브(16)의 순환 그루브(42)안으로 들어가 변형되도록 구성되어 있다.
Patent KR-19990044256-A (KR)
Title: 에멀젼 연료 및 가스 터빈에 사용하는 그의 용도
IPC: C10L1/32
Filed: 1996-08-30
Abstract: 탄화수소 수중유 에멀젼, 특히 나트륨 이온을 1 ppm 이하로 함유한 에멀젼은 가스 터빈에 사용하기 위한 신규 연료를 제공한다.  저비용과 함께 비교적 높은 효율은 가스 터빈 연료로서 이러한 에멀젼을 사용할 때 중요한 이점을 나타낸다.
Patent KR-20000064261-A (KR)
Title: 연료 필터
IPC: F02M37/50
Filed: 1997-07-22
Abstract: 연료 필터(10)의 필터 케이스(11)의 상면에는 압력 조절기로부터 배출되는 리턴 연료가 공급되는 리턴 통로(25)가 설치되어 있다.  리턴 통로(25)는 하부가 폐쇄되어 있음과 동시에, 분기 통로(25)가 연이어 설치되어 있다.  리턴 통로(25)에 공급된 리턴 연료는 분기 통로(26)로부터 필터 케이스(11)의 측면을 따라 연료액내로 흘러 내린다.  리턴 연료가 필터 케이스(11)의 측면을 따라 흘러 내릴 때 필터 케이스(11) 표면의 전하가 감소한다.  또한, 리턴 통로(25)에서의 에너지 흡수 작용, 분기 통로(26)에서의 에너지 분산 작용, 필터 케이스(11)의 측면을 따라 흘러 내릴 때의 에너지 흡수 작용에 의해 리턴 연료의 운동 에너지가 감소하고, 리턴 연료가 연료액내로 낙하할 때의 리턴 소음도 감소한다.
Patent KR-19990087351-A (KR)
Title: 광 네트워크 및 그 운영 방법
IPC: H04L7/00
Filed: 1997-02-25
Abstract: 본 발명은 광 네트워크 및 그 운영 방법에 관한 것으로, 광 네트워크는 광섬유 버스와 같은 광전송매체와 연결된 다수의 노드를 포함하고, 노드 각각은 다크 펄스 생성기를 포함하며, 여러 노드들은 여러 타임슬롯내 다크 펄스를 전송매체상으로 출력하여, 다크 펄스 OTDM 신호를 형성하고, 네트워크는 리엔트런트 버스 토폴로지를 가질 수 있는 것을 특징으로 한다.
Patent KR-19990087737-A (KR)
Title: 열처리방법 및 복사 가열장치
IPC: G01J5/02
Filed: 1997-03-10
Abstract: 본 발명은 온도검출기로서 방사온도계를 이용한 복사 가열장치에 의해 피처리체를 열처리시 하는 경우에 있어서 도펀트농도 또는 피처리체의 저항율에 관계없이, 열처리체의 온도를 실제 원하는 온도로 열처리 될 수 있는 열처리방법 및 복사가열장치가 제공된다. 이 방법에서 도펀트 농도 또는 저항율에 따라 피처리체의 온도보정을 행함으로써, 피처리체의 온도를 원하는 온도로 하여 열처리 한다. 
     또한, 그 장치에 있어서, 온도제어기에 미리 피처리체의 도펀트 농도 또는 저항율을 입력하고 그 피처리체의 도펀트 농도 또는 저항율에 따라 상기 방사 온도계에 의해 검출된 온도를 수정연산하여 실제의 피처리체온도를 산출하고, 그 산출값을 기초로 피처리체의 온도제어를 할 수 있게 한다.
Patent KR-20000005190-A (KR)
Title: New elastomer composition, manufacturing method and device thereof
Inventor: CHUNG BEAN
IPC: C08C1/14
Filed: 1997-03-25
Abstract: PURPOSE: An elastomer composition is provided to achieve the equality of products of high level by performing in the normal state or the associate normal state and to improve the pliability of selecting the maximum processing capacity and material of the system. CONSTITUTION: The manufacturing method of the elastomer complex is formed by the steps of: feeding the first fluid of successive flow including the elastomer latex on the mixing zone of a solidification reacting tub which restricts the solidification zone lengthily spread by extending to the discharge end from the mixing zone; forming the mixture with the elastomer latex by feeding the second fluid of successive flow including the corpuscular filler to the mixing zone of the solidification reacting tub under pressurizing; and discharging the elastomer complex of practically successive flow from the discharge end of the solidification reacting tub.
Patent KR-20000010967-A (KR)
Title: Pre-post distortion amplifier
Inventor: BASKIN BRIAN L
IPC: H03F1/32
Filed: 1997-05-15
Abstract: PURPOSE: A method is provided for linearization of a cascade of non-linear RF amplifiers by matching the distortion characteristics of each pair of amplifiers, and by taking into account the variation of the distortion characteristics of each amplifier over frequency, over temperature, and over other sources of non-linearity. CONSTITUTION: A device comprises the four-cascade amplifier comprising two driver amplifiers and two power amplifiers. The pre-post distortion amplifier allows one to amplify at least two RF signals with almost full compensation of the distortion signal introduced by the propagation of input signals within the pre-post distortion amplifier. Each pair of driver-power amplifiers is scaled down in power output to achieve the optimum result.
Patent KR-20000016553-A (KR)
Title: Gamma correction circuit
Inventor: VAN ENDERT TONY PETRUS
IPC: G09G5/10
Filed: 1998-03-05
Abstract: PURPOSE: A gamma correction circuit and a display apparatus, comprising such a gamma correction circuit are disclosed. CONSTITUTION: A gamma correction circuit comprises an amplifier (A) coupled to receive an input signal (Vi), and a non-linear impedance (Rg) coupled to the amplifier for determining a gain of the gamma correction circuit in such a manner that the gain increases when the input signal increases. The input signal is applied to a non-inverting input of an amplifier. The amplifier is fed back by a resistor between the output and the inverting input of the amplifier. The transfer of the impedance is such that a small gain is obtained for small input signals, while a high gain is obtained for large input signals.
Patent KR-20000050570-A (KR)
Inventor: CHOI IL HEUNG
IPC: H01L21/66
Filed: 1999-01-12
Abstract: PURPOSE: A carrier package temporarily used for testing a chip is provided to use existing facilities for testing a conventional package, by performing a burn-in test regarding the chip, and by detaching the tested chip from the carrier package, so that the carrier package can be reusable. CONSTITUTION: A carrier package temporarily used for testing a chip(108) comprises: a base cavity(130); a cap block for wiring(150); and an interface block(140). The base cavity has a chip resting element(102) mounted in the center of a main body composed of insulating material, and has an external lead(106) outside the main body. The cap block for wiring coupled to the base cavity covers a chip mounted in the chip resting element and has a connecting element for connecting a bond pad(110) of the chip with the external lead inside while the connecting element is reusable. The element connected to the bond pad is multi-fixed so that the connecting element may not fluctuate horizontally. The interface block mounted at an end of the base cavity is fixed to the external lead, and is composed of a socket detachable by a socket inserting pin which is a fixing element for fixing the external lead of the cap block for wiring.
Patent KR-20000050925-A (KR)
Inventor: OH JAE HONG
IPC: B62D3/00
Filed: 1999-01-15
Abstract: PURPOSE: A steering device for a vehicle is provided to enlarge handling space, to simplify a structure of steering device, and to adjust a steering wheel to fit to a body type of a driver. CONSTITUTION: A steering device for a vehicle comprises: a sensing device to be connected with a rotating shaft of a steering wheel (50) and to detect the angular speed and the rotation direction of the steering wheel; an ECU to receive signals of the angular speed and the rotation direction; a steering cylinder (3) to be connected with a rod (2) to rotate a pitman arm (53); an operating device to supply the steering cylinder with air pressure from an air tank (4) according to signals from the ECU or to block, and to convert the operating direction of the steering cylinder.
Patent KR-20000050987-A (KR)
Inventor: JIN KI HWAN
IPC: A62D7/00
Filed: 1999-01-16
Abstract: PURPOSE: An air supply apparatus having an air pump for divers is provided to supply air for a time long enough for the troubled diver to come up to the water surface, even when the air pump malfunctions. CONSTITUTION: A air supply apparatus of a float chamber having a float tank(2) of a ring shape and connecting through an air hose(30) with a mouthpiece or an air mask(40) has a frame(4) of a structure to mount peripheral units for tightly covering with a cover(C). A battery operating pump(50) for filling air into the float tank(2) and a cooling device against the friction heat of the pump operation are housed in the framed chamber(4).
Patent KR-19990068237-A (KR)
Title: 컬러음극선관
IPC: C23C10/06
Filed: 1999-01-30
Abstract: 본 발명은, 간단한 구성수단에 의해, 페이스플레이트(1A)의 주변부에서의 휘도를 중앙부분에서의 휘도에 필적시키는 것을 가능하게 하고, 또한 편향각이 큰 경우에 있어서도, 편향요크에 공급하는 편향전압을 저감시켜, 편향요크로부터의 누설자계를 감소시키는 일이 가능한 음극선관을 제공하는 것을 목적으로 한 것이며, 그 해결수단으로서, 페이스플레이트(1A)의 내면에 형광면을 형성한 패널부를 가진 음극선관에 있어서, 페이스플레이트(1A)는, 그 내면(1A(1))의 곡률반경 Ri가 그 외면(1A(2))의 곡률반경 Ro와 거의 동등하거나 그것보다 크게 하여, BM홀 투과율을 소정의 값으로 규정하는 것을 특징으로 한 것이다.
Patent KR-19990072574-A (KR)
Title: 디지털ｍｐｘ신호복조기용반송파발생장치
IPC: H03L7/10
Filed: 1999-02-11
Abstract: 디지털 MPX 신호(mpx1)와 함께 임의 클록 신호(t1)에 로크되는 대응 지표 신호(pilot signal)(p1)를 전환시킬 수 있는 전환 가능한 디지털 복조기(D)용 반송파 발생 장치이다.  지표 신호 PLL(10)은 제1 값 분배기(15) 및 제2 값 분배기(20)에 의해 각각 제1 반송파 신호(x1.1, x2.1) 및 제2 반송파 신호(x1.2)를 발생한다.  복조되는 MPX 신호(mpx1)에 따라서, 제어 장치(60)는 초기값(i0) 및 적어도 하나의 위상 정정값(k1, k2)을 전달한다. 초기값(i0)은 각각의 표준에 따라서 지표 신호(p1)에 대한 지표 신호 PLL(10)의 포획 범위(capture range)를 설정한다.  제1 정정 장치(16) 및/또는 제2 정정 장치(23)에 있어서, 위상 정정값(k1, k2)은 제1 반송파 신호(x1.1, x2.1) 및/또는 제2 반송파 신호(x1.2)의 시스템 고유의 위상 편차를 정정한다.
Patent KR-19990077549-A (KR)
Title: 자기정보기록매체용글라스세라믹기판
IPC: G11B5/66
Filed: 1999-03-03
Abstract: 본 발명은 주결정상으로서, β-석영(β-SiO 2 ), β-석영고용체(β-SiO 2 고용체), β-스포듀멘(β-Li 2 O·Al 2 O 3 ·SiO 2 ), β-스포듀멘고용체(β-Li 2 O·Al 2 O 3 ·SiO 2 고용체), β-유크립타이트(β-Li 2 O·Al 2 O 3 ·2SiO 2 , 단, Li 2 O의 일부는 MgO 및/또는 ZnO로 치환가능), β-유크립타이트고용체(β-Li 2 O·Al 2 O 3 ·2SiO 2 고용체, 단, Li 2 O의 일부는 MgO 및/또는 ZnO로 치환가능) 중에서 선택되는 1종 또는 2종 이상의 결정상을 함유하는 자기 정보기록매체용 글라스세라믹 기판을 제공한다.  대안으로서 글라스세라믹은, 주결정상으로, 가나이트(ZnAl 2 O 3 ) 및/또는 가나이트고용체(ZnAl 2 O 3 고용체)를 함유한다.  본 발명의 글라스세라믹기판은 높은 내열특성 및 수직 자기기록에 따른 높은 기록밀도가 가능한 초평활표면을 가진다.
Patent KR-19990077572-A (KR)
IPC: F16L11/04
Filed: 1999-03-04
Abstract: 본 발명은 기체상태 유체 전송용 음향 감쇠 액밀 파이프에 관한 것으로, 기체상태 유체 침입가능한 다공성 재료의 제 1 층(1)과, 상기 제 1 층에 고착되지 않게 제공되며 기계적 및 가역적으로 변형가능한 가요성있는 액밀성 재료의 박막으로 이루어진 제 2 층(4)을 포함하며, 상기 제 2 층의 재료는 점탄성형인 것을 특징으로 하여 구성된다.
Patent KR-20000060605-A (KR)
Inventor: SONG JONG IN
IPC: H01L21/285
Filed: 1999-03-17
Abstract: PURPOSE: An epitaxial structure for forming a low ohmic contact resistance of a P-type GaN semiconductor is provided to improve capacity of an optical device and an electronic device using the GaN semiconductor, by lowering a potential barrier generated in the P-type GaN to greatly reduce an ohmic resistance. CONSTITUTION: In an epitaxial structure for forming a low ohmic contact resistance of a P-type GaN(1) semiconductor, GaAs highly doped with a P-type impurity is grown between an ohmic metal(2) and the P-type GaN to lower a potential barrier generated in the P-type GaN when an ohmic contact is formed on the P-type GaN.