baber/WOPTO huggingface dataset:
Patent KR-19990085622-A (KR)
Title: 반도체 장치의 제조 방법
Filed: 1998-05-20
Abstract: 본 발명은 반도체 장치의 제조 방법에 관한 것으로, 반도체 기판 상에 게이트 산화막을 사이에 두고, 게이트 패턴이 형성된다.  게이트 패턴의 양측벽에 게이트 스페이서가 형성된다.  게이트 스페이서 양측의 반도체 기판 상에 소오스/드레인 불순물 이온이 주입된다.  게이트 스페이서의 일부가 식각 되어 게이트 스페이서의 폭이 감소된다.  이와 같은 반도체 장치의 제조 방법에 의해서, 소오스/드레인 불순물 이온주입 공정 후, 추가로 게이트 스페이서를 더 식각 함으로써, 소오스와 드레인간의 길이 마진을 확보할 수 있고, 동시에 후속 절연층 형성시 좁은 게이트 스페이서 사이의 영역에서 발생되는 보이드를 방지할 수 있으며, 인접한 게이트 스페이서 사이의 간격의 증가로 콘택 크기 마진을 확보할 수 있다.
Patent KR-19990085629-A (KR)
Title: 냉장고 제빙용기의 급수장치 및 방법
Filed: 1998-05-20
Abstract: 본 발명은 냉장고 제빙용기의 급수장치 및 방법에 관한 것으로, 종래 장치는 수압이 낮을 경우 제빙용기에 공급되는 물의 양이 적어 얼음의 형상이 작고 수압이 높을 경우는 물이 제빙용기를 넘쳐 고내의 다른용기에 쏟아질 수 있는 문제점이 있었다. 따라서, 본 발명은 냉동실과 냉장실을 구비하고 제품내의 일측 구간에 제빙기어셈을 구비하여 배관을 통해 급수되는 물을 제빙하는 냉장고에 있어서, 상기 배관내에 운동체를 두고 그 운동체의 위치를 감지하는 센서를 포함하여 구성함으로써 운동체의 위치에 따라 수압을 결정함으로써 일정한 유량을 항시 제빙용기에 공급할 수 있는 효과가 있다.
Patent KR-19990086194-A (KR)
Title: 이차원 영상의 검사방법
IPC: H04N17/00
Filed: 1998-05-26
Abstract: 본 발명에 따른 이차원 영상의 검사 방법은, 표준 물체로부터 제1 영상 데이터를 구하는 단계를 포함한다.  구해진 제1 영상 데이터 중에서 물체 영역의 영상 데이터는 축소되어, 축소된 영상 데이터에 해당되는 영역이 관심 영역으로 설정된다.  또한, 제1 영상 데이터 중에서 물체 영역의 영상 데이터는 확대되어, 확대된 영상 데이터에 해당되는 영역에서 관심 영역이 제외된 영역이 허용 영역으로 설정된다.  그리고, 전체 화면에서 관심 영역과 허용 영역이 제외된 나머지 영역이 배경 영역으로 설정된다.  다음에, 검사될 물체는 촬상되어 제2 영상 데이터가 구해진다.  제1 및 제2 영상 데이터 중에서, 관심 영역에 상응하는 데이터가 서로 비교되어, 제1 편차량이 구해진다.  또한, 제1 및 제2 영상 데이터 중에서, 배경 영역에 상응하는 데이터가 서로 비교되어, 제2 편차량이 구해진다.  그리고, 제1 및 제2 편차량이 설정된 한계 편차량과 비교되어, 검사될 물체의 합격 여부가 판단된다.
Patent KR-20000000567-A (KR)
Title: Synchronous semiconductor memory device using variable external power voltage
Inventor: LEE DONG SOO
IPC: H01L27/11
Filed: 1998-06-01
Abstract: PURPOSE: An SDRAM is provided to improve tSAC(required time from an activity of clock signals to an output of effective data) by using variable internal power voltage. CONSTITUTION: The SDRAM comprises a data output control circuit(15) applied a first internal power voltage(IVC1) through a first internal voltage generating circuit(11); and a peripheral circuit(17) applied a second internal power voltage(IVC2) through a second internal voltage generating circuit(13), wherein the voltage levels of the first internal power voltage(IVC1) and the second internal power voltage(IVC2) are different from each other. The data output control circuit(15) includes an output buffer(19) for receiving a data of data output lines and outputting a data to a output pad(23) and an output control clock signal generating part(21) for receiving an external clock signal and generating an output control clock signal.
Patent KR-20000001296-A (KR)
Title: Lock-release device for car audio using identification code and method thereof
Inventor: JANG YONG SUK
IPC: G11B20/10
Filed: 1998-06-10
Abstract: PURPOSE: A device and a method are provided to release a lock device of an audio not by re-input a secret number into the audio by a communication with a connecting device and a microcomputer though re-installing after removing. CONSTITUTION: The lock-release device of the car audio comprises: a connecting device(10) to communicate with a micom through a bus line; an interface IC(20) to feed a signal fed from the micom(30) to the connecting device; the micom to control various parts according to the signal inputted from a function button unit; the function button unit(40) to select a function for using various functions; a driver(50) to transmit a control signal fed from the micom to a display unit; the display unit(60).
Patent KR-20000001432-A (KR)
Title: Assembly type manhole box structure
Inventor: KIM JI SANG
IPC: E02D29/12
Filed: 1998-06-11
Abstract: PURPOSE: An assembling type manhole box is provided to be assembled by forming the structure of the manhole box by an assembling type structure divided into three or four parts crosswise. CONSTITUTION: The structure is installed by; a base plate(10) installed on the ground of underground and having a combining bolt(11) installed on each upper part of corners of a rectangular to be protruded; many middle blocks(20) having combining holes(21, 32) on each corner corresponding to the protruded combining bolt(11); a combining piece(24) inserted into the combining holes to combine the accumulated middle block(20) to the base plate installed under it or another middle block(20) and to be combined to the combining bolt; and an upper block(30) having combining holes(31) on each corner and installed on the middle block placed on the utmost upper part.
Patent KR-20000001795-A (KR)
Title: Power control device and method for mobile communication system
Inventor: PARK JIN SU
IPC: H04B7/005
Filed: 1998-06-13
Abstract: PURPOSE: A power control device for a mobile communication system is provided to control power while a traffic channel is off. CONSTITUTION: A power control device for a mobile communication system includes a base station and a mobile station. The base station has a transmission diversity function, generates a specific common channel signal for transmitting a traffic channel signal through a traffic-on antenna, and transmitting a reference value about a transmission power through a traffic-off antenna. The mobile station has a plurality of receivers according to transmission diversity. After the receivers store traffic power in case of a traffic-off, the mobile station detects a power variation of a common channel, calculates a virtual traffic power, generates virtual power control information according to the virtual traffic power, and transmits the virtual power control information to the base station through a backward link.
Patent KR-20000002113-A (KR)
Title: Tray for package
Inventor: PARK YONG GI
IPC: H01L23/02
Filed: 1998-06-17
Abstract: PURPOSE: A tray for a package is provided to improve the productivity by producing a constitution material using an engineering plastic class. CONSTITUTION: The tray for the package comprises: arranged plural pockets in the upper part of a body; formed the body by mixing a base resin of an engineering plastic party and an electric conductive addition in a certain rate.
Patent KR-20000002681-A (KR)
Title: Leg sliding equipment of bult-in tableware washing machine
Inventor: CHO YOUNG MAN
IPC: A47L15/00
Filed: 1998-06-22
Abstract: PURPOSE: Subject of disclosure apply lag sliding equipment to the prevent of a separation, a shake of leg shoe and loss leg shoe when a moving of tableware washing machine. CONSTITUTION: Disclosed connects main body which push into like the lower space of sink and the numerous lag the edge of the lower main body and the leg get into leg shoe for the prevent of the bottom damage and easy to slip when tableware washing machine slip and A hang projection at the leg is project out and inside of the leg shoe construct fixing hook for a hang projection will be hanging. It make easy to connect main body with sink for the prevent separation, vibration of a leg shoe and loss leg shoe when a moving.
Patent KR-20000003161-A (KR)
Title: Ill-intentioned call intercepting method using intelligent network
Inventor: RYU KWAN HONG
IPC: H04Q3/00
Filed: 1998-06-26
Abstract: PURPOSE: An ill-intentioned call intercepting method using an intelligent network is provided to selectively reject the receiving about violence call or joke call, to check and chase the dialed number. CONSTITUTION: An ill-intentioned sending intercepting method using an intelligent network comprises the steps of: if the sender dials the service member subscribed the intelligent network, an intelligent network exchanger transmits the signal to the applicable service control system; the service control system inputted the signal processes the sent signal according to the process of each state by judging the telephone setting state of the service member that the sender wants to call.
Patent KR-20000008032-A (KR)
Title: Indoor device of separation-type air conditioner
Inventor: GIL YONG HYUN
IPC: F24F1/00
Filed: 1998-07-09
Abstract: PURPOSE: An indoor device of a separation-typed air conditioner is provided to reduce the bending event able to be generated while manufacturing or using a product and to easily intrude itself. CONSTITUTION: An indoor device of a separation-typed air conditioner installs:a body having a base member(3) attached on a wall face and a front frame fixed on the front face of the base member and having an acceptance space of a heat exchanger(33) and a horizontal flow fan(35) between itself and the base member; an upper plate combined on the upper area of the body; a lower plate combined on the lower area of the body; a left and a right cover combined on both sides of the body; and plural front suction grill members(29) combined on the front face of the body between the left and the right cover.
Patent KR-20000008819-A (KR)
Title: Power delivering instrument of metal belt
Inventor: LEE JONG WAN
IPC: F16G5/00
Filed: 1998-07-16
Abstract: PURPOSE: A power delivering instrument of a metal belt is provided to prevent the sliding event of a pulley and a metal belt, to minimize the power loss or abrasion and to successively perform the interlocking of a pulley with a metal belt. CONSTITUTION: The power delivering instrument of a metal belt is composed of:a driving pulley(14) fed power from a driving shaft(10), able to control the distance of an inner facing surface(12) through the forward/backward movement, and forming a belt guiding unit on the facing surface(12); a slave pulley(16) placed on a side of the driving pulley(14) separated with a certain interval, having the facing surface(12) corresponding to the facing surface(12) of the driving pulley(14), and able to control the distance of the facing surface(12) through the forward/backward movement; and at least more than two metal belts(18) installed on the belt guiding unit of the driving pulley(14) and the slave pulley(16) and connecting the driving pulley(14) with the slave pulley(16) to deliver the power.
Patent KR-19990023726-A (KR)
Title: 계조 공유 데이터 생성장치, 계조 공유 데이터 복원장치, 계조데이터 처리장치, 계조 공유 데이터 생성방법, 계조 공유 데이터 복원방법, 계조 데이터 처리방법및 컴퓨터 판독 가능한 기록매체
IPC: G06T3/40
Filed: 1998-08-20
Abstract: 본 계조 공유 데이터 생성장치는 문자 또는 도형을 포함하는 기호의 윤곽을 나타내는 윤곽정보로부터, 계조를 나타내는 화소의 소정 개수에 대응하여 기호를 나타내기 위한 계조 데이터를 복수종류 공유하며, 계조 공유 데이터를 생성하는 계조 공유 데이터 생성장치이며, 윤곽정보로부터 계조수 2의 계조 데이터 및 계조수 3의 계조 데이터를 생성하는 윤곽정보 확대축소부(102), 기본 계조값 산출부(103)와, 생성된 계조수 2의 계조 데이터 및 계조수 3의 계조 데이터로부터 계조수 4의 계조 공유 데이터를 생성하는 계조 공유 데이터 생성부(105)를 갖고 있다. 
     또한 본 계조 공유 데이터 복원장치는 상기 계조 공유 데이터로부터 계조 데이터를 복원하는 계조 공유 데이터 복원장치이며, 계조수 2 또는 계조수 3을 선택하는 계조수 선택부(108)와, 계조 공유 데이터로부터 선택에 따라 계조수 2의 계조 데이터를 복원하는 제 1 계조 데이터 복원부(109), 계조수 3의 계조 데이터를 복원하는 제 2 계조 데이터 복원부(110)를 갖고 있다.
Patent KR-19990023930-A (KR)
Title: 내연 기관용 제어 장치 및 제어 방법
IPC: F02D41/14
Filed: 1998-08-27
Abstract: 차량 내연 기관용 제어 장치 및 제어 방법에 있어서, 운전자에 의해 조작되는 가속 페달의 조작량을 검출하는 가속 페달 조작량 검출기가 제공되고, 엔진의 회전 속도를 검출하는 회전 속도 검출기가 제공되며, 검출된 가속 페달 조작량 및 검출된 회전 속도를 기초로 하여 차량 운전자에 의해 요구되는 엔진 토크를 운전자 요구 토크로서 연산하는 운전자 요구 토크 연산기가 제공되고, 외부로부터 엔진에 요구되는 엔진 토크를 위한 보정량을 외부 요구 토크로서 연산하는 외부 요구 토크 연산기가 제공되며, 운전자 요구 토크 및 외부 요구 토크 중 적어도 하나를 기초로 하여 저응답 요구 토크를 연산하는 저응답 요구 토크 연산기가 제공되고, 운전자의 요구 토크 및 외부 요구 토크 중 적어도 하나를 기초로 하여 고응답 요구 토크를 연산하는 고응답 요구 토크 연산기가 제공되며, 연산된 저응답 요구 토크를 실현하도록 적어도 하나의 제어 대상을 저응답 방식으로 조작하는 제1 토크 조작기가 제공되고, 연산된 고응답 요구 토크를 실현하도록 적어도 하나의 제어 대상을 고응답 방식으로 조작하는 제2 토크 조작기가 제공된다.
Patent KR-20000021922-A (KR)
Title: Rod for fixing clamp ring of ion implanter
Inventor: KIM KWANG BIN
IPC: H01L21/265
Filed: 1998-09-30
Abstract: PURPOSE: A rod for fixing clamp ring of an ion implanter is provided to prevent a part fail and shorten a back-up time by using improved couple structure between a rod and a base plate. CONSTITUTION: In a rod clamp ring fixed between a base plate(3) and a clamp ring(1) usinga rod(2), an extension rod(4) is elongated from the lower part of the rod(2) and having a screw hole. The base plate(3) further includes a hole. The rod(2) and the base plate(3) are coupled each other by using a bolt(5) fixed to the screw hole of the extension rod(4) via the hole of the base plate(3).
Patent KR-20000021972-A (KR)
Title: Method of controlling low temperature of refrigerator
Inventor: PARK HYEONG NAM
IPC: F25D29/00
Filed: 1998-09-30
Abstract: PURPOSE: A low temperature controlling method is provided to prevent weak freezing of a freezing chamber by controlling the driving of a fan. CONSTITUTION: A low temperature controlling method of a refrigerator composed of a first temperature detection part(10), a second temperature detection part(20), a microcomputer(30), a fan driving part(40), a fan(50), a compressor driving part(60) and a compressor(70) is operated by the steps of: detecting indoor temperature of the refrigerator and feeding the temperature to an A/D port of the microcomputer in the first temperature detection part; detecting outdoor temperature of the refrigerator and feeding to the A/D port of the microcomputer in the second temperature detection part; and controlling the driving on/off of the fan and the compressor by repeatedly setting up the driving off point of the fan and the compressor and the chopping time to the difference value according to the outdoor temperature is under 20°C in the microcomputer.
Patent KR-20000024985-A (KR)
Title: Apparatus for detecting call connection according to transmission call in communication terminal and method
Inventor: JEONG IN OH
IPC: H04B1/38
Filed: 1998-10-07
Abstract: PURPOSE: An apparatus for detecting a call connection according to a transmission call in a communication terminal and method are provided to inform a call line connection by a call transmission to user and inform a busy signal by a call transmission to user. CONSTITUTION: An apparatus for detecting a call connection includes a first band pass filter(161), a second band pass filter(163), a third filter, and a control part. The first band pass filter is to pass 440Hz band of a voice signal being inputted to a speaker. The second band pass filter is to pass 660Hz band. The third filter is to cut a frequency more than 440Hz. The control part is to judge a connection state of a call path by whether a signal being offered an output from the first band pass filter, the second band pass filter, and the third filter is or not.
Patent KR-20000026952-A (KR)
Title: Control unit for automatic starting of vehicle
Inventor: LEE SUK GYU
IPC: F02N11/08
Filed: 1998-10-24
Abstract: PURPOSE: A control unit for the automatic starting is provided to prevent the unnecessary idle rotation at the maximum and to solve the inconvenience of a driver by automatically starting or stopping a vehicle according to the neutral state of a gear or a hand brake. CONSTITUTION: A control unit is operated by: acting a hand brake when an engine is driven; and stopping the engine if there is no problem during a specific time after working a timer if an oil pressure switch is not worked; that is, automatically stopping the engine after a certain time as a driver leaves the driver's seat to load freight or to do other things; therefore, the control unit is able to prevent the unnecessary idle rotation and to prevent the air pollution. Also, the engine is automatically started if the hand brake or the parking brake is released and the oil pressure switch is being worked in the neutral state of the gear.
Patent KR-20000027089-A (KR)
Title: Apparatus for preventing twist of telephone line, electric line, general line and cable
Inventor: KIM JAE DONG
IPC: H04M1/15
Filed: 1998-10-27
Abstract: PURPOSE: An apparatus for preventing a twist of a telephone line, an electric line, a general line and a cable is provided to remove an economic loss and an inconvenience in appearance in use. CONSTITUTION: An apparatus for preventing a twist of a using line comprising a telephone line adheres a Rotary Connector for preventing a twist of a using line connected between a main body of a telephone line(11, 12) including an electric line, a generally using line, and a cable and a handset, to prevent a twist of a using line.
Patent KR-20000027769-A (KR)
Title: Lcd with high aperture rate and high transmissitive
Inventor: CHOI WOO HO
IPC: G02F1/136
Filed: 1998-10-29
Abstract: PURPOSE: An LCD with high aperture rate and high transmissitive is provided to obtain a uniform transmission rate by coinciding an end of a pixel electrode strip and an end of a counter electrode strip. CONSTITUTION: A counter electrode(22) is formed as a comb type on a lower substrate(20). Strips(22a,22b,22c) have a uniform width(W1), and are separated and arranged at an equal spacing. A gate insulating film(24) is formed on a upper portion of the lower substrate(20). A pixel electrode(26) is formed on the gate insulating film(24). Strip portions(26a,26b) of the pixel electrode(26) are arranged at a space between strip portions(22a,22b,22c) of the counter electrode(22). Both sides of strip portions(26a,26b) of the pixel electrode(26) are overlapped with strip portions(22a,22b,22c) of the counter electrode(22). The overlapped width(OL) of both sides of strip portions(26a,26b) is equal each other. A miss-align maximum value of the overlapped width(OL) is indicated as an adding value of a CD(critical dimension) bias width of the counter electrode(22), a CD bias width of the pixel electrode(26), and an overlay value of the pixel electrode(26).
Patent KR-20000027935-A (KR)
Title: Method for forming interlayer dielectric of semiconductor devices
Inventor: KIM SEON WOO
IPC: H01L21/3205
Filed: 1998-10-29
Abstract: PURPOSE: An interlayer dielectric formation method is provided to easily achieve the interlayer dielectric having void-free and good gap-filling capability by using BPSG as the interlayer dielectric and using HDP(high density plasma) CVD. CONSTITUTION: A conductive pattern(22) is formed on a semiconductor substrate(21). A barrier insulator(23) is formed on the resultant structure having the conductive pattern(22). Then, a BPSG(boron phosphorus silica glass) is deposited on the barrier insulator(23) using HDP-CVD method, and flattening process is performed. Thereby, HDP-CVD BPSG layer(24) used as an interlayer dielectric is formed. The HDP-CVD BPSG layer(24) is deposited at low temperature of 500-700°C.
Patent KR-19990044999-A (KR)
Title: 개구 형성 방법
IPC: H01L29/78
Filed: 1998-11-04
Abstract: 본 발명은 반도체 유전체층에 개구를 형성하는 방법을 제공한다.   바람직한 일실시예에서, 본 발명의 방법은 유전체층상에 이 유전체층의 에칭 속도보다 느린 에칭 속도를 갖는 하드마스크층(hardmask layer)을 형성하는 단계와, 하드마스크층을 통해 안내 개구(guide opening)를 형성하는 단계와, 안내 개구내에 안내 개구의 직경을 감소시키는 스페이서(spacer)를 형성하는 단계와, 안내 개구를 통해 유전체층에 개구를 형성하는 단계를 포함한다.   본 발명의 방법은 개구 및 안내 개구의 내부와, 안내 개구를 지나 확장하는 하드마스크층의 적어도 일부상에 전도성 재료(conductive material)를 증착하는 단계와, 안내 개구를 지나 확장하는 하드마스크층 및 전도성 재료층을 제거하는 단계를 더 포함할 수 있다.   소정의 실시예에서는 0.25μm 이하의 폭을 갖는 콘택트 개구(contact opening)를 형성할 수 있다.
Patent KR-20000034266-A (KR)
Title: Single-scanning deflection circuit
Inventor: JO MIN SU
IPC: G09G5/00
Filed: 1998-11-28
Abstract: PURPOSE: A single-scanning deflection circuit is provided to control the deflection for maintaining a single-format resolution regardless of the inputted signal format. CONSTITUTION: A single-scanning deflection circuit controls a the deflection corresponding to a display format of inputted R,G,B signals. A phase locked loop (200) provides A/D converting clock and D/A converting clock by horizontal and vertical synchronous signals of the R,G,B signals. A controller (202) provides information according to the pre-settled sinnal display format by distinguishing the display format mode from the horizontal and vertical synchronous signals of the R,G,B signals and a controlling signal by a user's key operation. And the single-scanning deflection circuit comprises an A/D converting part (204), an inputted signal format converting part (206), a D/A converting part (208), an R,G,B signal processing part (210), a free amp (212), CRT (214), a deflection controlling part 9216), a vertical deflection oscillator (218), a horizontal deflection oscillator (220) and a deflection york (222).
Patent KR-19990062717-A (KR)
IPC: C07D215/48
Filed: 1998-12-02
Abstract: The present invention relates to a simple method for preparing a quinolinone derivative, which is effective as a medicine, e.g., as an agent for treating allergic diseases and the like; novel amide derivatives effective as an intermediate in the method; novel quinolinone derivatives obtained according to the method; and an anti-allergic agent contaiirng a quinolinone derivative and/or physiological salt of the same as the active ingredients. The quinolinone derivative is expressed by the following general formula (II); and the method is characterized in that an amide derivative, expressed by the following general formula (I), is reacted with a basic agent, followed by intramolecular ring formation:     General Formula (I) <CHEM> Äwherein, R1 represents a hydrogen atom, an alkyl group, an alkyl group containing a hydroxyl group, an alkenyl group, or an aryl group; R2 represents an alkyl group, an alkenyl group, an aryl group, or an aralkyl group; R3 represents a reactive carboxyl group; and R4 to R7 represent, respectively and independently, a hydrogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkenyl group, an alkenyloxy group, an aryl group, an aryloxy group, an aralkyloxy group, a R8R9N group (wherein, R8 and R9 represent, respectively and independently, a hydrogen atom, an alkyl group, an aikenyl group, an aralkyl group, or an acyl group), a nitro group, or a R10OOC group (wherein, R10 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group)Ü.     General Formula (II) <CHEM> Äwherein, R1, R2 and R4 to R7 represent, respectively, the same constituents as described in general formula (I)Ü.
Patent KR-19990062876-A (KR)
Title: 셋 톱 박스 집적 회로 및 집적 방법
IPC: H04N5/44
Filed: 1998-12-08
Abstract: 디지털 셋 톱 박스(digital set top box)에서 사용할 집적 회로는 최소한 한 개의 제어 유닛, 다수의 데이터 처리 유닛, 상기 처리 유닛들중의 최소한 두 개의 유닛을 공통의 외부 메모리에 접속하는 공통의 데이터 버스를 포함하며, 여기서, 두 개 이상의 공통의 데이터 버스들은 다수의 데이터 처리 유닛에 제공되며, 다수의 제어 유닛이 있는 경우에, 별도의 제어 버스가 제어 유닛들을 접속하기 위해 제공될 수도 있다.
Patent KR-20000039946-A (KR)
Title: Data configuration management apparatus using layered expression method by telephone number and method thereof
Inventor: BYUN SEONG WON
IPC: H04M3/22
Filed: 1998-12-16
Abstract: PURPOSE: A data configuration management apparatus using the layered expression method by a telephone number and the method thereof are provided to set up the database expressing a layered structure from original data comprising department names and telephone numbers and to maintain consistently the order and the layered structure when a change is generated to the configured database. CONSTITUTION: A configuration device (202) sets up a layered department database (203), after receiving the input for original data comprising department names and telephone numbers from an original data file (201) using the layered expression method by a telephone number. A management device (204) receives the input for a transaction from a transaction file (205) and incorporates change details in the department database (203). Accordingly, insertion, deletion and renewal works are carried out with the layer structure of the department database (203) maintained.
Patent KR-20000040920-A (KR)
Title: Less-melted type of precipitating nozzle
Inventor: BAEK CHAN JUN
IPC: B22D41/50
Filed: 1998-12-21
Abstract: PURPOSE: A less-melted type of a precipitating nozzle is provided which can reduce melting in making a steel having much oxygen by making the stuff having low content of C and SiO2. CONSTITUTION: A less-melted type of a precipitating nozzle is characterized as follows: a stuff of a melting point is comprised of 75-85wt.% of Al2O3, 10-16wt.% of SiO2 and lower than 3wt.% of C; and the same stuff composition is applied to the 20-50% of the thickness from the contacting surface of the steel.