baber/WOPTO huggingface dataset:
Patent KR-19990062812-A (KR)
Title: 무한궤도용 플랜지부착링크와 그 제조방법
IPC: B62D55/32
Filed: 1998-12-04
Abstract: 링크와 이판의 체결강도의 향상을 도모한다. 
     링크(11)와 일체인 플랜지(12)를 형성하고, 이 플랜지(12)에 이판(40)의 체결용의 볼트가 삽입되는 볼트구멍(21)을 설치한 무한궤도용 플랜지부착링크(10). 링크(11)의 소재를 산 모양의 강제(10A), 굽힘부재(10E), 또는 용접부재(10F)로 한다. 상기 무한궤도용 플랜지부착링크(10)를 장착한 무한궤도(30). 산 모양의 강제를 소재(10A)로서, 프레스가공에 의해 무한궤도용 플랜지부착링크(10)를 제조하는 무한궤도용 플랜지부착링크(10)의 제조방법
Patent KR-20000038975-A (KR)
Title: Biodegradable polyester composition
Inventor: KIM BONG SEOP
IPC: C08L67/00
Filed: 1998-12-10
Abstract: PURPOSE: Provided is a biodegradable polyester composition prepared by dispersing polyhydroxylate in an aliphatic polyester resin at random, which is excellent in mechanical properties. CONSTITUTION: A biodegradable polyester composition comprises 20-40 wt% of a polyhydroxylic acid single fiber such as polyglycolic acid, polylactic acid and 60-80 wt% of an aliphatic polyester resin such as polyethylene succinate, polypropylene succinate and polybutylene succinate. The length/thickness ratio of the polyhydroxylate ranges 5/1-100/1.
Patent KR-19990063013-A (KR)
Title: 홀더 및 그 제조방법
IPC: H01R13/24
Filed: 1998-12-11
Abstract: 소형 마이크로폰 혹은 스피커 등의 부착용 전자부품의 전극과 기판의 전극의 접속을 도전성의 탄성커넥터부를 사용하여 실시하고, 그리고, 부착용 전자부품의 지지를 실시하는 지지부와 탄성커넥터를 일체 형성하는 것에 의해, 리드선 등을 납땜에 의해 접속하는 공정이 없고, 더욱이 부품개수, 조립부착공수를 삭감할 수 있고, 제조비용의 절감을 도모할 수 있고, 또한, 복잡한 형상의 지지부와 탄성커넥터부를 일체화할 수 있는 홀더 및 그 제조방법.
Patent KR-20000039532-A (KR)
Title: Open type internet connection device using telephone connection modem and method for the same
Inventor: RYU WON
IPC: H04L29/06
Filed: 1998-12-14
Abstract: PURPOSE: An open type internet connection device using a telephone connection modem and a method for the same are provided to connect easily a telephone network subscriber using a telephone connection modem with internet. CONSTITUTION: An open type internet connection device using a telephone connection modem and a method for the same comprise an HSNA(High Speed switching Network Adapter board assembly) driving portion, a link layer driving portion, a link control protocol management portion, an internet protocol control protocol management portion, an internet protocol address management portion, an internet protocol management portion, and an interface portion.
Patent KR-20000039886-A (KR)
Title: Apparatus for processing d channel data in switching system
Inventor: KIM YOUNG MIN
IPC: H04L12/50
Filed: 1998-12-16
Abstract: PURPOSE: An apparatus for processing D channel data in a switching system is provided to divide transmitted message frames into D channel packet data and D channel signal data within a signal board. CONSTITUTION: An apparatus for processing D channel data in a switching system comprises an interface board(210) and a control board. The interface board divides an E1 frame applied from other station to a B/D channel, multiplexes a corresponding B/D channel. In addition, the interface board transmits the multiplexed corresponding B/D channel as a serial type through a data bus, and divides the B/D channel by demultiplexing transmitted data of the serial type. The control board controls the divided B/D channel data transmitted from the interface board.
Patent KR-20000044899-A (KR)
Title: Method for preventing blowing-up phenomenon of tungsten silicide
Inventor: KIM TAE GYU
IPC: H01L21/336
Filed: 1998-12-30
Abstract: PURPOSE: A method is provided to suppress a blowing-up phenomenon generated at a tungsten silicide when performing an annealing. CONSTITUTION: In a method for preventing a blowing-up phenomenon of a tungsten silicide generated at annealing the tungsten silicide film damaged at an etching process, the damaged tungsten silicide film is loaded in a reaction furnace in which an oxygen gas is not flown in. A temperature of the reaction furnace is increased up to an oxidation temperature in the state that an oxygen gas does not exist. A dry oxidation process and an annealing process are performed by injecting the oxygen gas in the furnace.
Patent KR-20000044957-A (KR)
Title: Method for manufacturing discharge storage electrode of semiconductor device
Inventor: LIM GYU NAM
IPC: H01L27/108
Filed: 1998-12-30
Abstract: PURPOSE: A method for fabricating a discharge storage electrode of a semiconductor device is provided to prevent the malfunction of the semiconductor device and to improve the reliance of the semiconductor device by preventing the letter key pattern from lifting CONSTITUTION: A semiconductor substrate(11) is formed with a bit line contact plug and a capacitor contact plug(13). A bit line(14) is formed on an insulation film(12) formed on the semiconductor substrate(13). A barrier nitride film(15) and a cap oxide layer(16) are formed on the insulation film(12) which is disposed in a cell area(A) and a letter key pattern area(B). By sequentially etching the cap oxide layer(16) and the barrier nitride film(15), a capacitor contact hole(18) is formed in the cell area(A) and a letter key pattern(390) is formed in the letter key pattern area(B). Then, a polysilicon layer is formed at a side wall of the capacitor contact hole(18). A discharge storage electrode(200) and a negative letter key pattern(190) are formed by removing the cap oxide layer(16) in the cell area(A) and the letter key pattern area(B).
Patent KR-20000045167-A (KR)
Title: Electrical washing machine using an electrolysis device and a neutralization device
Inventor: KIM SEUNG SEOK
IPC: D06F35/00
Filed: 1998-12-30
Abstract: PURPOSE: An electrical washing machine using an electrolysis device and a neutralization device is provided to improve the washing effect by using electrolysis water and reduce the environmental contamination by using a device for neutralizing the washing water. CONSTITUTION: An electrical washing machine comprises a water level regulating valve(303), an electrolysis device(305), a container(315) for storing the acid electrolysis water, a tub, a neutralization device(319), an acid electrolysis water passage regulating valve(317), a level detecting section(321), and a controlling section(323). The neutralization device(319) neutralize the washing water.
Patent KR-20000045275-A (KR)
Title: Method for forming spacer oxide layer of semiconductor device
Inventor: LEE GI YEOB
IPC: H01L21/31
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming a spacer oxide layer of a semiconductor device is provided to prevent a hot carrier phenomena by implanting nitrogen ions into an oxide layer. CONSTITUTION: A method for forming a spacer oxide layer of a semiconductor device comprises the following steps. A gate electrode(2) is formed on a silicon substrate(1). An oxide layer is deposited on an upper portion of the whole structure. Nitrogen ions are implanted into the oxide layer. The oxide layer is etched to form a spacer oxide layer(4) at both side walls of the gate electrode by using an isotropic etch method. Nitrogen atoms are extracted from the spacer oxide layer by annealing the resulted material.
Patent KR-20000046418-A (KR)
Title: Manufacturing method of brake disc
Inventor: PARK SANG HYO
IPC: F16D69/00
Filed: 1998-12-31
Abstract: PURPOSE: A manufacturing method of a brake disc is provided to improve a friction coefficient, a heat conductivity and a braking stability. CONSTITUTION: A manufacturing method of a brake disc contains the following steps; a step to manufacture a preform by mixing and stacking up a carbon fiber, a carbon prepreg and a pitch; a step to manufacture a low-density carbon compounds by heating the preform; a step to form a heat-gradient of a carbon compounds through a heat line set in the compounds, and to make a density from the inner of compounds to the outer of compounds by a pyrolysis reaction of HC(HydroCarbon).
Patent KR-20000046569-A (KR)
Title: Method for testing communication status between processors
Inventor: PARK CHOON SOO
IPC: H04M3/26
Filed: 1998-12-31
Abstract: PURPOSE: A method for testing communication status between processors is provided to print the signal communicated between processors and loss of data, and measure the communication efficiency between processors, if required. CONSTITUTION: A test request message for testing communication status between a first processor and a second processor by using an operator terminal, is transmitted to the first processor through a central control processor(200). The first processor analyzes the test request message, estimates time gap when transmitting, and transmits the estimated time gap to the second processor(202). The second processor returns the transmitted test signal to the first processor without changing(204). The first processor receiving the returned test signal, monitors whether the test signal received according to time gap, and analyzes the loss of test signal by comparing the number of test signal stored during the transmission with the number of test signal received from the second processor(205). After confirming delayed receipt of test signal by analyzing the order and transmission time of the test signal received from the second processor, the test result message is output to the operator terminal through the central control processor(206,207).
Patent KR-20000046622-A (KR)
Title: Air leveling system of air suspension for vehicle
Inventor: HAN JAE DEOK
IPC: B60G17/00
Filed: 1998-12-31
Abstract: PURPOSE: An air leveling system for a vehicle is provided to inform a driver of misoperation or damage of a solenoid valve via an alarm lamp or a buzzer. CONSTITUTION: A vehicle speed sensor(10) of an air leveling system detects stoppage state of a vehicle. Respective vehicle height sensor(12,14) measures the height of a vehicle body and transmits a corresponding signal to an electronic control unit(4). The electronic control unit opens first, second and third solenoid valves(26,28,30) if a vehicle is stopped and the height of a vehicle is less than a certain value and transmits compressed air in a reservoir tank(42) to selected respective air spring(18,20) to maintain level of a vehicle. If the solenoid valve are damaged or misoperated, the electronic control unit operates an alarm lamp(36) to make a driver confirm the state with naked eyes and operates a buzzer(38) to make a driver confirm the state by sound.
Patent KR-20000046894-A (KR)
Title: Axial supporting structure of pump
Inventor: JUNG YONG GYU
IPC: F04C2/00
Filed: 1998-12-31
Abstract: PURPOSE: An axial supporting structure of a pump is provided to minimize a frictional loss of a contact surface between a guiding plate of an inlet part and a rotor and abrasion of the contact surface of the guiding plate, thereby improving motor efficiency. CONSTITUTION: In an axial supporting structure of a pump for inhaling and discharging fluid in a direction perpendicular to a rotation direction of a rotor(20) according to a difference of pressures between a suction part and a discharge part due to a volume change caused by the rotation of the rotor mounted in a casing formed with suction and discharge holes, a thrust bearing(200) is mounted between the rotor and a guiding element(100) of the inlet part for preventing frictional loss between the guiding plates and the rotor, the guiding elements guiding fluid passing through the suction hole of the casing toward the rotor for supporting the rotor when the rotor is pushed toward the inlet part due to the pressure difference between the inlet and outlet parts during a high speed rotation.
Patent KR-19990035946-A (KR)
Title: 연마 및 전도성 액체용 정전 노즐
IPC: B05B5/16
Filed: 1996-07-25
Abstract: 공기 분무 유도 하전식 스프레이 노즐은 전도성 액체, 용액, 현탁액 또는 에멀션을 구비하는 사용에 적합하다.  상기 시스템은 저유도 전극 전압 및 전류로 높은 정도의 스프레이 하전을 특징으로 한다.  주요 잇점은 연속성, 특히 비교적 고농도의 연마 및 전도성재를 구비하며 광범위한 스프레이 형성으로 엄격한 농업 및 공업 환경에서의 안전한 작업을 포함한다.  노즐 본체부(1)의 외부 표면은 접지 스프레이어 부분 근처에 연결되고, 부유성 또는 근처 접지 전압으로 유지된다.  유도 전극(18)에 인접한 커버부(2) 표면은 전극(18) 전압 근처에서 유지된다.  노즐의 고전압 및 저전압부 사이의 고저항 경로는 유지되고, 전극 전압 또는 스프레이 전하 정도는 노즐 표면이 스프레이에 의해 코팅되거나 또는 분무 환경에 존재하는 전도성 재료에 의해 오염될 때 상당히 감소하지 않는다.
Patent KR-19990036352-A (KR)
Title: 관성 진동 트랜스듀서
IPC: H04R1/00
Filed: 1996-09-02
Abstract: 판형 피에조-전기 벤더 (27) 와, 진동하는 부재 (2) 상에 상기 벤더를 탑재하기에 적합한 수단 (20, 93) 을 갖춘 관성 진동 트랜스듀서 (9) 로서, 상기 벤더의 상당 부분은 상기 부재로부터 떨어져서 상기 부재에 연관되어 움직인다.
Patent KR-19990087142-A (KR)
Title: 반도체 소자
IPC: H01L29/423
Filed: 1997-09-26
Abstract: 약 도핑된 드레인 연장부와 전형적인 깍지끼움 형태의(interdigitated) 소스/드레인 구성을 갖는 고전압 MOS 트랜지스터에서 전류 값이 높을 때 항복 전압이 감소됨으로써, SOAR(안정 동작 영역)이 줄어든다. 본 발명은 전류의 집중과 그에 수반되는 키르크 효과(Kirk effect)에 기인하여 전류 값이 높을 때 항복 전압이 드레인 핑거의 단부면에서 발생한다는 사실에 기초한다. 트랜지스터의 SOAR을 증대시키기 위하여, 소스 핑거(6)를 국부적으로 중단시켜서 드레인 핑거들(5, 6)의 팁(8)이 동작하지 못하게 한다. 본 발명의 바람직한 실시예에서, 소스 핑거(4)는 드레인 핑거들(5, 6) 보다 짧게 구성된다.
Patent KR-19990087691-A (KR)
Title: 비스페놀a에폭시수지를사용한유리장식방법및관련조성물및물건
IPC: B41M1/34
Filed: 1997-03-05
Abstract: 복사에 의해 경화가능한 잉크 조성물은 총 조성물 중량에 대해서 화학식 1 의 비스페놀 A 에폭시 수지 30-95%(n은 0-20);  화학식 2 의 유기작용기 실란 0.1-25%(n은 0-3, a는 0-2, Y는 NH 2 , CH 2 =CH, CH 2 =C(CH 3 )-COO-, CH 3 -NH-, NH 2 -CO-NH-, HS, Cl, NH 2 (CH 2 ) 2 NH-, 
     
       
     
     X는 CH 3 , Cl, OCOCH 3 , OC 2 H 4 OCH 3 , (OC 2 H 4 ) 2 OCH 3 또는 -OR 이고 R은 C 1-20 직쇄 또는 직쇄형 알킬, 특히 OCH 3 또는 OCH 2 CH 3 이고);  양이온 광개시제 0.1-25%;  및 불화 계면활성제 0.05-20%를 포함하고, 본 발명은 상기 조성물 제조방법 및 장식된 최종 제품에도 관계한다.
Patent KR-20000005276-A (KR)
Title: Bookmarking television program and channel selections
Inventor: BEDARD KAREN
IPC: H04N21/431
Filed: 1997-03-31
Abstract: PURPOSE: A method and apparatus are to enable a viewer to select broadcast signals conveniently by displaying broadcast signals, such as programs and channels, on a screen of a television set. CONSTITUTION: An apparatus displays broadcast programs on selected channels to a viewer, marks at least one program in response to a first signal from the viewer, marks one or more of the channels in response to a second signal from the viewer, stores signals corresponding to the marked programs and channels; and sequentially displays the marked programs and channels in response to a third signal from the viewer. To aid the viewer, a method and apparatus for displaying broadcast information, such as television signals, on a television are provided. The apparatus displays a plurality of icons on the screen, sequentially moves an icon cursor from one icon to another icon in response to a first signal from a television viewer to point to one icon at a time, and displays text associated with the pointed icon only.
Patent KR-20000010980-A (KR)
Title: Gray primer optimizing method in laminated coating
Inventor: RODRIGESS ALLEN BLASE GEORGP
IPC: B05D5/06
Filed: 1997-05-13
Abstract: PURPOSE: A gray primer optimizing method is provided to repaint or refinish a vehicle and a truck by selecting a special primer paint composition applied before a top coat paint composition. CONSTITUTION: A gray primer optimizing method has the steps of: applying the coating layer of a primer composition; applying a top coating on a primer coating not to completely cover up the color of painted base material; applying laminated coating composition on the painted base material by performing color mixture of the top coating and already painted base material; the primer composition is each different a group of gray or white primer composition of 5¯ 20 numbers, is selected among groups mixed to be approached to the reflexibility of the top coat measured in minimum absorptive wave of the top coating.
Patent KR-20000015874-A (KR)
Title: Modular block retaining wall construction
Inventor: DOBIE MICHAEL JOHN DAVID
IPC: E02D29/02
Filed: 1997-05-12
Abstract: PURPOSE: A retaining wall is provided to be composed of a wall being erected by staggered superimposed courses of crossed modular blocks being fixed to a proper reinforcement by a geogrid. CONSTITUTION: A retaining wall for reinforced infill material is constructed from modular blocks (1). Versatility and stability in building vertical or sloping, straight or curved walls is achieved whilst maintaining secure attachment of the blocks to a geogrid or like reinforcement material (16), by providing the blocks with means for pivotal articulation at quarter-joints along their width, such as bores (10) and pivot pins (11), in combination with wedge-shaped anchor elements (13) which are retained in cavities (12) in the blocks and which have projections (15) engaging through apertures in the geogrid.
Patent KR-19990082697-A (KR)
Title: 선형모터및선형압축기
IPC: H02K33/16
Filed: 1999-02-04
Abstract: 선형모터는, 직사각형의 형상을 가지고 또한 높은 투자율을 각각 가지는 다수의 박판들이 서로간에 적층되도록 구성된 각주형의 내부요크와 직사각형의 형상을 가지고 또한 높은 투자율 각각 가지는 다수의 박판들이 서로간에 적층되도록 구성된 외부요크를 구비한다. 선형모터의 축방향을 따라 상이한 자극들을 교대로 만들기 위해 외부요크의 세 자극부중 중앙부 둘레에 코일들이 감긴다. 자극부를 가지는 외부요크의 표면은 내부요크와 사이에 규정된 갭을 만들도록 내부요크에 대향관계로 배설되어, 내부요크와 외부요크는 각각 다수의 요크블록들을 형성한다. 요크블록들은 박판 적층방향이 샤프트의 직경방향에 대해 수직이 되도록 축주위에 위치된다. 이외에도, 자화방향이 서로간에 반대가 되도록 반경방향으로 자화된 한 쌍의 영구자석을 가지는 가동요소가 축을 따라 규정된 간격으로 내부요크와 외부요크 사이에 가동되게 위치된다. 이 구성은 모터효율성을 개선하고 또한모터의 제조를 용이하게 한다.
Patent KR-19990077496-A (KR)
Title: 전자파발생복합체
IPC: C02F1/30
Filed: 1999-02-26
Abstract: 간단, 단순, 염가에 제작할 수 있는 복합체이고, 물의 성질  개선이나, 생명체의 활성화를 도울 수 있고, 의료업무, 농업생산등의 이용분야가 넓은 전자파 발생 복합체를 제공한다. 
     전자파 발생 복합체는 반도체와 자석으로 이루어진다.
Patent KR-20000060003-A (KR)
Inventor: LEE SANG YOUL
IPC: F28F1/16
Filed: 1999-03-10
Abstract: PURPOSE: A tube for a radiator and a method for manufacturing the same are provided to easily manufacture the tube at low cost, thereby promptly and efficiently radiating heat. CONSTITUTION: A method for manufacturing a tube for a radiator includes the steps of manufacturing a first mold(P') by forming a cylindrical tube by using upper and lower part molding rollers(12,14) having a hexagonal section and driven up and down, and fixing rollers(16) installed at both sides of the first mold(S10); manufacturing a second mold(P'') by rotating the first mold at an angle of 90 degrees and then driving the upper and the lower part molding rollers(S20); and completing the second mold as a tube(20) by using upper and lower part metal molds(22,24) and right and left metal molds(26,28) having a section of one side end opposite to a fixing rod(18) wherein the second mold to be inserted, wherein the section draws an arc corresponding to the range of a regular angle.
Patent KR-20000060099-A (KR)
Title: Outlet base of liquid filled container having air discharge structure
Inventor: LEE HYUN YOUNG
IPC: B65D8/02
Filed: 1999-03-11
Abstract: PURPOSE: An outlet base is provided to achieve a consumer convenience and reduce cost while allowing the liquid container to be filled with contents at a high speed. CONSTITUTION: An outlet base comprises an adhesion pipe portion(1), an outlet pipe portion(2), and a cap(3). The adhesion pipe portion has at an entrance thereof a plurality of screw threads and at an inner side thereof a protrusion(14) and sealing portions(15,17). The outlet base has an adhesion portion(7) for an attachment to the main body of the container. The outlet pipe portion has at an outlet opening a protrusion sealing portion, at a side surface thereof a protrusion(13), closing/opening protrusions(4,5) and a hole(6). When the outlet pipe portion is press-inserted into the adhesion pipe portion, an air within the container escapes upon filling the container with contents.
Patent KR-19990088113-A (KR)
Title: 푸마질롤유도체및그제조방법
IPC: A61P35/00
Filed: 1999-05-07
Abstract: 본 발명은 하기 화학식 1의 푸마질롤 유도체, 약제학적으로 허용 가능한 그의 염 및 그 제조방법에 관한 것이다. 
     
       
     
     상기 화학식 1의 화합물은 혈관신생저해제로서 사용될 수 있다.
Patent KR-19990088187-A (KR)
Title: 폴리옥시메틸렌수지조성물
IPC: C08L59/02
Filed: 1999-05-11
Abstract: 본 발명은, 하기를 함유하는 폴리옥시메틸렌 수지 조성물에 관한 것이다 : 
     (A) 폴리옥시메틸렌 공중합체 100 중량부; 
     (B) 아민 치환 트리아진 화합물 0.01 내지 7 중량부; 및 
     (C) 평균 분자량 10,000 이상의 폴리에틸렌 글리콜 (C-1) 및/또는 산가(acid value) 0.5 내지 60 mg-KOH/g의 산성기를 갖는 변성 폴리올레핀 왁스 (C-2) 0.01 내지 5 중량부. 
     본 발명에 따르면, 낮은 수축 이방성(shrink anisotropy), 탁월한 열안정성 및 치수 안정성을 갖는 폴리옥시메틸렌 수지 성형품을 제공할 수 있다.
Patent KR-20000074698-A (KR)
Inventor: HUH GYEONG UK
IPC: F25D23/00
Filed: 1999-05-25
Abstract: PURPOSE: A deodorizing system is provided to achieve semi-permanent deodorant and improve performance of refrigerator. CONSTITUTION: A refrigerator has an inner wall which forms a freezing compartment(A) and a refrigerating compartment(B), and which is made of synthetic plastic material. Titanium oxide(TiO2) photocatalyst for oxidizing carbon(C) component and hydrogen(H) component is coated at an outer surface of an inner wall(3) of the refrigerator. Preferably, the synthetic plastic material constituting the inner wall of the refrigerator includes silica(SiO2) or inorganic ceramic. Thus, malodorous substance is continuously adsorbed and completely removed by oxidizing disintegration, to thereby eliminate the necessity of changing an additional deodorant.
Patent KR-20010002542-A (KR)
Inventor: LEE CHUN GEUN
IPC: F16D23/00
Filed: 1999-06-15
Abstract: PURPOSE: An improved device of a starting for a constant-mesh type transmission is provided to well mesh a main shaft with 1 gear and R gear of a counter shaft and to remove the noise due to the gear-mesh. CONSTITUTION: An improved device of a starting for a constant-mesh type transmission comprises: a release fork(51) to be worked by a clutch pedal; a brake pad(53) to be equipped on the tip of the release fork; a brake drum(57) to be equipped on a clutch shaft(55) in order to be contacted with the brake pad and to catch a clutch shaft(55) when the release fork is worked by the clutch pedal over a full stroke.
Patent KR-20000006382-A (KR)
Inventor: WINGSAUSHI
IPC: G11C16/10
Filed: 1999-06-23
Abstract: PURPOSE: A nonvolatile flash memory device is provided to reduce current consumption, voltage fluctuation, and noise in programming. CONSTITUTION: A nonvolatile flash memory device comprises a plurality of pipe lines including memory array, a timing circuit starting programming operation successively in the pipeline, and a combined charge pump and voltage adjusting circuit driving current through a memory to be programmed. The nonvolatile flash memory device reduce a current requirement of the charge pump. Since the current required from the charge pump is constant, the noise reducing accuracy of writing operation is decreased.
Patent KR-20010008570-A (KR)
Inventor: CHO JANG YEON
IPC: H01L33/06
Filed: 1999-07-02
Abstract: PURPOSE: A nitride semiconductor device of a quantum well structure is provided to prevent the degradation of luminescent efficiency by minimizing crystal dislocation in a crystal growth layer and to reduce the driving voltage of a light emitting device by improving the doping concentration of a p-type layer. CONSTITUTION: A nitride semiconductor device includes the first buffer layer(210) and an n-type contact layer(220) formed on a substrate(200) in sequence. The device further includes an n-type clad layer(230) and a thin active layer(240) of a quantum well structure formed on a portion of the n-type contact layer(220) in sequence. In addition, a low temperature crystal growth layer(243), the second buffer layer(247), a p-type clad layer(250) and a p-type contact layer(260) are formed on the active layer(240) in sequence. Moreover, an n-type electrode(270) is formed on the other portion of the n-type contact layer(220), and a p-type electrode(280) is formed on the p-type contact layer(260).
Patent KR-20010010528-A (KR)
Inventor: SEO YUN DEUK
IPC: G11B20/10
Filed: 1999-07-21
Abstract: PURPOSE: A method for designating a file name of digital audio data is provided to easily sort/process digital audio data files and not to separately update a database by recognizing a field of recorded information in the file name. CONSTITUTION: Relative information of digital audio data is recorded in a file name. Each recorded field in the file name is sorted by sorting symbols. The sorting symbols are '£|', '/', '', ','. '{}' or '<>'. To perform a process about a playback method by a user's request, information of each field is sorted by recognizing through the sorting symbol in a playback system. Thereby, the user samples and plays back songs of a wanted field quickly.