baber/WOPTO huggingface dataset:
Patent KR-20030056017-A (KR)
Title: Method for fabricating of Phase Shift Mask
Inventor: CHOI SEONG JIN
IPC: H01L21/027
Filed: 2001-12-27
Abstract: PURPOSE: A method for manufacturing a phase shifting mask is provided to be capable of improving the accuracy of etching profile by exactly measuring the etched extent of the quartz used as a shift layer at the phase shifting mask. CONSTITUTION: After forming a chrome layer and the first resist pattern on a quartz substrate(11a), the chrome pattern(12a) is formed by selectively etching the chrome layer by using the first resist pattern as an etching mask. A phase shifting region is defined by using second resist layer formed on the resultant structure. At this time, the quartz substrate is partially exposed. A mask substrate is then completed by etching the exposed portion of the quartz substrate for a predetermined time. At this time, the etching time of the exposed quartz substrate is reset by comparing 0 degree portion with 180 degree portion of the mask substrate by using the density graph of an aerial image system.
Patent KR-20030056906-A (KR)
Title: Method for manufacturing a semiconductor device
Inventor: JUNG JONG YEOL
IPC: H01L21/3105
Filed: 2001-12-28
Abstract: PURPOSE: A planarization method of a semiconductor device is provided to be capable of preventing processing failure due to the thickness difference of an interlayer dielectric. CONSTITUTION: Insulating particles(23) are deposited on a semiconductor substrate(21) having metal patterns(22) by using sol-gel technique. The metal patterns(22) and the insulating particles(23) are planarized. The insulating particles(23) are sintered. Then, an insulating layer(24) is formed on the entire surface of the resultant structure. At this time, PETEOS(Plasma Enhanced Tetra Ethyl Ortho Silicate) is used as the insulating layer(24).
Patent KR-20010085346-A (KR)
Title: Method and device for mechanically machining work pieces and for assembling/disassembling modules
IPC: B23Q1/38
Filed: 1999-07-24
Abstract: A method and an apparatus for performing mechanical operations on a workpiece secured on a first member for movement relative to a second member in at least one of three orthogonal directions at a precision in the mum range. Selectively energizable magnets are provided between the first and second members cause the first member to assume a floating state relative to the second member and to provide such movement. The second member is provided with a chamber for receiving the first member and is with openings for the controlled flow of pressurized fluid to augment the action of the magnets.
Patent KR-20010106474-A (KR)
IPC: H01R13/24
Filed: 1999-11-17
Abstract: 하우징(31)과 이면 덮개(32)의 대향된 관통 구멍(33,34)에 프로브 핀(35)이 수용 유지되어 이루어진 IC 소켓이다. 프로브 핀은 외주면에 스토퍼(38a)가 형성된 튜브(38) 일단에 고정 플런저(39)가 끼워져서 이루어진 튜브 구조체(36), 튜브 타단에 배열 설치되어 피측정 디바이스의 단자와 압접되는 가동 플런저(37), 및 가동 플런저를 가압하는 코일스프링(41)에 의해 구성되고, 튜브 구조체 양단부가 관통 구멍에 수용 위치결정되고, 하우징 내면과 스토퍼 사이에 개재된 제 2 코일 스프링(42)에 의해 스토퍼가 가압되어 이면 덮개 내면에 부딪히고, 이 상태로 고정 플런저 선단이 이면 덮개 외면에서 돌출하는 구조로 된다. 피측정 디바이스의 착탈에 의해 가동 플런저는 상하로 움직이고 슬라이딩을 반복하나 슬라이딩성은 악화되지 않고 우수한 접촉 안정성이 얻어진다.
Patent KR-20010089874-A (KR)
IPC: A61K47/32
Filed: 1999-09-09
Abstract: 본 발명의 서방형 라놀라진 제형은 라놀라진과 부분적으로 중화된 pH 의존성 결합의 친밀 혼합된 혼합물을 함유하여, pH 4.5 미만의 수성 매질에서는 거의 불용성이고, pH 4.5 초과의 수성 매질에서는 가용성인 막을 형성한다.  본 발명의 제형은 라놀라진의 일일 2회 투여에 적합하고, 라놀라진의 분해 속도를 조절하는데 유용하며, 사람 혈장 라놀라진 수준을 550 내지 75000ng 염기/ml에서 유지시킨다.
Patent KR-20020073245-A (KR)
Title: 직선운동 구동장치
IPC: H02K7/06
Filed: 2000-12-28
Abstract: 직선운동 구동장치는 원통체(4)내에 샤프트(6)를 동축심상태로 끼워 넣고, 원통체와 샤프트 사이에 복수의 원통코일롤러(3a)를 축방향에 대하여 소정의 경사각을 가지고 전동 가능하게 밀어 넣어 샤프트의 바깥 둘레면과 원통체의 안 둘레면사이에 그들 원통코일롤러(3a)를 압접력을 가지고 접촉시켜 원통체 또는 샤프트을 회전시켜 샤프트 또는 원통체를 축방향으로 직선운동시키는 직선운동 구동장치이다.  원통체(4)와 샤프트에 대한 원통코일롤러(3a)의 내외 양면의 압접력을 원통체(4)의 끝부 근방에서 그 중간부보다 높게 하고, 또는 끝부 근방에서 그 중간부보다 낮게 한다.  이에 의하여 원통코일롤러(3a)가 그 양쪽 끝에 가까이 갈 수록 그 압접력이 증대 또는 감소하여 그 슬립의 누적이 방지된다.  즉 원통코일롤러 (3a)의 정지위치가 한쪽의 끝부측으로 지나치게 치우친 경우, 역방향으로 슬립하기 때문에 원통코일롤러(3a)의 축방향의 정지위치가 허용범위내에 유지된다.
Patent KR-20010108325-A (KR)
Filed: 1999-03-09
Abstract: 본 발명은 트립티센 단위체를 함유하는 공액 중합체에 관한 것이다.  본 발명에 따른 중합체는 트립티세닐 라디칼을 함유하는 반복 단위체를 포함하는 단독중합체 및, 트립티세닐렌 라디칼 또는 아릴렌, 헤테로아릴렌, 비닐렌 및 에티닐렌 라디칼을 함유할 수 있는 두 개 이상의 상이한 반복 단위체를 포함하는 공중합체이다.  본 발명에 따른 중합체는 전계발광 물질로서 사용된다.
Patent KR-20020001809-A (KR)
Title: 발광 사이리스터 매트릭스 어레이
IPC: H01L27/15
Filed: 2001-01-30
Abstract: 본 발명은 기판을 공통의 음극으로 하는 3단자 발광 사이리스터의 어레이를 n개(n은 2 이상의 정수)의 발광 사이리스터마다 블록화하고, 각 블록 내의 n개의 발광 사이리스터의 게이트를 각각 독립인 n개의 게이트 선택선과 접속하며, 또한 각 블록 내의 n개의 발광 사이리스터의 양극을 공통의 전극에 접속하고 있는 발광 사이리스터 매트릭스 어레이에 있어서, 전기적으로 접속되지 않고서 배선을 교차시키는 구조를 제공한다.
Patent KR-20010113871-A (KR)
IPC: B22D11/04
Filed: 2001-01-24
Abstract: 주입된 생사 주형을 붕괴시킴으로써 서로 분리되게 용융 금속에 의해 열적으로 영향을 받지 않는 주형 생사와 주조 재료에 부착된 용융 금속에 의해 열적으로 영향을 받는 주형 생사를 수집할 수 있는 주입된 생사 주형으로부터 샌드를 분리하는 방법 및 장치가 제공되며, 상기 방법 및 장치에서 수송될 주조된 생사 주형은 붕괴된 위치에서 기밀식으로 둘러싸이며, 상기 둘러싸인 생사 주형은 열적으로 영향을 받지 않는 주형 생사로부터 주조 재료에 부착된 열적으로 영향을 받는 주형 생사를 갖는 주형 재료를 분리시키기 위해 분해되고 붕괴되며 그리고 상기 주조 재료는 주조 재료로부터 열적으로 영향을 받은 주형 생사를 분리시키기 위해 붕괴된 위치와 상이한 위치에서 진동되며, 이에 의해 열적으로 영향을 받은 주형 생사와 열적으로 영향을 받지 않은 주형 생사가 서로 분리되게 수집될 수 있다.
Patent KR-20010103052-A (KR)
IPC: H05K1/03
Filed: 2000-02-04
Abstract: 본 발명은 경사와 위사로 구성되는 유리 클로스에 있어서, 
     (1) 경사와 위사 중 어느 한쪽이 실질적으로 극간이 없이 배열되고, 이 실질적으로 극간이 없이 배열된 실에 있어서, 수학식 1-a 를 만족하는 것을 특징으로 하는 유리 클로스, 및 
     [수학식 1-a] 
     C ×A / (25 ×L ×N) ≥1.0 …(1-a) 
     (2) 경사와 위사로 구성되는 유리 클로스에 있어서, 경사와 위사의 양쪽이 실질적으로 극간이 없이 배열되고, 또한, 경사 및 위사에 있어서, 수학식 1-b 를 만족하는 것을 특징으로 하는 유리 클로스. 
     [수학식 1-b] 
     C ×A / (25 ×L ×N) ≥0.75 …(1-b) 
     여기서, A 는 실의 사속단면적 (㎛), L 은 실의 단일섬유의 직경 (㎛), N 은 실을 구성하는 단일섬유의 개수 (개), C 는 실의 직물밀도 (개/25 ㎜) 이다. 
     본 발명의 유리 클로스는 프린트 배선판의 기재로서 유용하며, 본 발명의 유리 클로스를 기재로서 사용한 프린트 배선판은 레이저광 가공에 의한 소경 구멍가공을 양호하게 수행할 수 있다.
Patent KR-20010104387-A (KR)
IPC: A61F13/34
Filed: 2000-03-27
Abstract: This invention relates to absorbent tampons. More particularly, the invention relates to an improved absorbent tampon having improved leakage performance. Tampons, having a primary absorbent member which is constructed from an absorbent material compressed to a self-sustaining form and a mass of secondary absorbent material are disclosed. The mass of secondary absorbent material is preferably located generally proximate the withdrawal end of the primary absorbent member, and is preferably substantially non- compress, and preferably of a smaller diameter than the primary absorbent member. The mass of secondary absorbent material may be multiple pieces or one piece. The secondary absorbent material may be attached to the primary absorbent member, the withdrawal cord, or both, or may be integral with one or both of these members. The withdrawal cord of the tampon may have absorbent and non-absorbent zones, especially when the mass of secondary absorbent material is attached to the withdrawal cord. The mass of secondary absorbent material preferably has a lower total absorbency than the primary absorbent member. Preferably, the mass of secondary absorbent material is provided with a driving force to direct fluid toward the primary absorbent member. A preferred method of making a tampon of the present invention is also disclosed.
Patent KR-20010113812-A (KR)
IPC: B65H55/00
Filed: 2000-04-06
Abstract: 본 발명은 섬도가 160 dtex 이상, 특히 160 dtex 내지 1400 dtex인 엘라스탄 실의 릴(reel)을 포함하며 패키지 중량이 1.5 kg 이상인 엘라스탄 패키지에 관한 것이다.  엘라스탄 실은 작은 밴드 형상의 단면을 가지며, 엘라스탄의 폭 대 이 실의 단면 두께의 비가 3:1 이상이다.  엘라스탄 패키지는 평평한 텍스타일 구조물 및 일회용 위생용품을 제조하는데 사용된다.
Patent KR-20020005767-A (KR)
Title: 항균 화합물
IPC: A61K31/465
Filed: 2000-06-01
Abstract: Fab I 억제제이고, 세균 감염의 치료에 유용한 하기 화학식 I의 화합물 또는 그의 제약상 허용되는 염을 개시한다. 
     <화학식 I> 
     
       
     
     상기 식에서, 
     R 1 은 Ar 또는 Het이고, 
     R 2 는 H, C 1-6 알킬 또는 Ar-C 0-6 알킬이고, 
     X는 H, C 1-4 알킬, OR', SR', C 1-4 알킬술포닐, C 1-4 알킬술폭실, CN, N(R') 2 , CH 2 N(R') 2 , NO 2 , CF 3 , CO 2 R', CON(R') 2 , COR', NR'C(O)R', F, Cl, Br, I 또는 CF 3 S(O) r- 이고, 여기서 R'는 H, C 1-6 알킬 또는 Ar-C 0-6 알킬이고, r은 0, 1 또는 2이다.
Patent KR-20030059634-A (KR)
Inventor: MUN JUN TAE
IPC: H01L21/68
Filed: 2002-01-03
Abstract: PURPOSE: A blade of a wafer transfer robot is provided to be capable of preventing the generation of a damaged wafer due to the malfunction of the wafer transfer robot when loading and unloading a wafer by forming a downward slope at the front end portion of the blade. CONSTITUTION: A blade of a wafer transfer robot is provided with a positioning shoe(11) for loading a wafer and a clamp(12) connected with the positioning shoe(11) for clamping the positioning shoe. Preferably, the positioning shoe includes a downward slop(13) at the front end portion for preventing the wafer from being broken due to the collision between the wafer and the blade. Preferably, the positioning shoe further includes a plurality of wafer fixedly loaded part(11a,11b) for stably loading and supporting the wafer.
Patent KR-20030059938-A (KR)
Inventor: KIM DONG IL
IPC: C05D9/00
Filed: 2002-01-03
Abstract: PURPOSE: Provided is a liquid fertilizer containing K and Si for golf course lawn grass which prevents the damage by blight and harmful insects, promotes lawn grass, and improves flatness, density and elasticity of grass. CONSTITUTION: The liquid fertilizer is prepared by the following steps of: mixing water, siliceous fertilizer(soluble silicic acid(H4SiO4) content:12.5%) and silica; adding HF to dissolve siliceous fertilizer and silica, wherein the weight ratio of siliceous fertilizer, SiO2 and HF is 15-25 : 1.5-4 : 22-28; adding HNO3, H2SO4, and K2CO3 until the pH of a mixture get to pH9-10, wherein the weight ratio of HNO3, H2SO4, and K2CO3 is 3-7 : 1.5-4 : 42-48; adding mineral water and amino acid, and then diluting with a large quantity of water for spreading. The reaction temperature in adding HF, HNO3 and H2SO4 is 10-45deg.C.
Patent KR-20020086214-A (KR)
Inventor: HARAGUCHI YOSHIYUKI
IPC: G06F9/38
Filed: 2002-01-15
Abstract: PURPOSE: To provide a microprocessor capable of reducing re-fetch at branching in simple constitution and accelerating a processing speed. CONSTITUTION: By adding a new branching instruction (BJMP) and processing instructions to the one before a branching destination specified by the branching instruction (BJMP) as the operand of the branching instruction (BJMP), the number of the instructions to be processed is varied. The instruction word length of the branching instruction including the instruction processed as the operand is outputted to a program counter 8, the address of the program counter 8 is updated and a queue buffer 2 is not flashed at the branching instruction (BJMP).
Patent KR-20030070300-A (KR)
Title: Home Appliance Network System Including Bridge device and Its Operating Method
Inventor: HAN GYEONG HAE
IPC: G06F15/16
Filed: 2002-02-23
Abstract: PURPOSE: A home appliance network system having a bridge tool and an operation method thereof are provided to enable a user to conveniently control the home appliance and to effectively link the home appliance using a different communication standard by enabling the home appliance of the first communication standard to control the home appliance of the second communication standard. CONSTITUTION: A control instruction input part(31) receives a control instruction from a PC(10) of the first communication standard in order to relay the communication between the PC(10) connecting to the home appliance network system and the home appliance(20) of the second communication standard. A control instruction format converter(32) converts the control instruction inputted from the PC(10) into an instruction format fit to the home appliance(20). A control part(33) controls the home appliance(20) by inputting the converted control instruction to the home appliance(20). A web server(34) provides a response from the control instruction of the user by transmitting an XML(eXtensible Markup Language) document to the PC(10) in order to inform the PC(10) of an operation result of the home appliance(20).
Patent KR-20030072164-A (KR)
Title: Photo Resist Supply System
Inventor: KANG BONG JO
IPC: H01L21/027
Filed: 2002-03-02
Abstract: PURPOSE: An apparatus for supplying photoresist is provided to reduce the fatigue of a bellows and lengthen a lifetime by controlling correctly the amount of the photoresist and maintaining constantly the internal pressure of the housing. CONSTITUTION: An apparatus for supplying photoresist includes a storage tank(15) for photoresist, a transfer line for the photoresist, a check valve(3) for preventing the counter current, the first pulley(9) connected to a belt(8), a motor(1) for generating the power, the second pulley(7) connected to the belt(8), a bearing block(13) for supporting the second pulley(7), a screw(12) for converting the rotary motion to the straight line motion, a support(13) for supporting the screw(12), a guide(2) for correcting the linearity of the screw(12), a housing(11) for storing the supplied photoresist, and a cover plate(10) including the check valve(3) and a body. The housing(11) is formed with a region for transferring the photoresist and a region for receiving the photoresist.
Patent KR-20030073838-A (KR)
Title: Method for coupling an NRD waveguide with a rectangular waveguide directly and NRD waveguide thereof
Inventor: YOO YEONG GEUN
IPC: H01P5/02
Filed: 2002-03-13
Abstract: PURPOSE: A direct connection method and an NRD waveguide for the same are provided to reduce manufacturing costs and achieve improved productivity by eliminating the necessity of using a shift unit. CONSTITUTION: A non-radiative dielectric(NRD) waveguide(100) embedded with a dielectric line(130) is connected to a spherical waveguide in an internal space(102) defined by two conductor plates and a sidewall(112) arranged along the edges of the conductor plates. The side wall has an aperture(114), and the dielectric line is exposed outward through the aperture. The spherical waveguide is directly coupled to the side wall, surrounding the aperture of the NRD waveguide. The aperture has a width same as the vertical or horizontal length of the diameter of the spherical waveguide. The wall of the aperture has a thickness providing optimum characteristics in a predetermined error range, based on the size of 1/4 of the wavelength(λg) defined by the formula λg=C/f x ¡îεr, wherein c is the velocity of light, f is the center frequency, and εr is the dielectric constant of the dielectric line.
Patent KR-20030035761-A (KR)
Title: Electronic device and method of manufacturing the same
Inventor: MARUYAMA KENJI
IPC: H01L21/316
Filed: 2002-03-15
Abstract: PURPOSE: To provide an electronic device capable of obtaining a ferroelectric layer having a large polarization amount, and to provide a method for manufacturing the same. CONSTITUTION: The method for manufacturing the electronic device comprises (a) a step of preparing an ReO3 layer having an orientation (001), and (b) a step of forming an oxide ferroelectric layer of a perovskite structure having the orientation (001) on the ReO3 layer. The step (a) preferably includes (a-1) a step of preparing an MgO having the orientation (001), and (a-2) a step of forming the ReO3 layer having the orientation (001) on the MgO layer.
Patent KR-20030077126-A (KR)
Title: System for removing of optical reflection in iris recognition of pc and the method
Inventor: YANG AE GYEONG
IPC: G06K9/00
Filed: 2002-03-25
Abstract: PURPOSE: A device and method for dealing with a glasses reflection of an iris recognition system for a PC is provided to enable a user to recognize and register an iris by enabling the user to escape a reflection through glasses in the case that the user wears glasses in an iris recognition system for a PC using a single illumination. CONSTITUTION: If an illumination is turned on, a camera extracts an image(301). An image processing unit(303) analyzes a reflection degree in the image extracted in the camera and detects a reflection position. A direction display luminescence unit(305) displays a direction capable of escaping a reflection position detected in the image processing unit(303). An illumination control unit(304) turns on the direction display luminescence unit(305) by the reflection position detected in the image processing unit(303). The direction display luminescence unit(305) is provided at the upper/lower directions or the left/right directions according to positions of illuminations.
Patent KR-20030078535-A (KR)
Title: Air Cleaning System for removing dust on the surface of Liquid Crystal Display
Inventor: HWANG KYUNG SHIN
IPC: G02F1/13
Filed: 2002-03-30
Abstract: PURPOSE: An air cleaning system for removing alien substances of a surface of a liquid crystal display is provided to easily remove alien substances by automatically spraying compressed air and prevent indoor air pollution. CONSTITUTION: A cleaning case(10) has circumferential surfaces formed of transparent members(11) and a space part(12) inside. An air injector(20) is combined with an end of a pipe(30) where compressed air flows, so that one end of the air injector passes through the top side of the cleaning case and then is inserted into the space part. An air filter(40) filters alien substances of the compressed air supplied by the air injector. An air control valve(50) has an adjusting screw(51) for controlling flux of the compressed air to form an appropriate speed of a current. A solenoid valve(60) opens and shuts one side of the pipe for controlling supply of the compressed air. A sensor(70) senses a predetermined liquid crystal display work for applying an electric signal to the solenoid valve.
Patent KR-20020077824-A (KR)
Inventor: KOMAI HIROKAZU
IPC: G11B23/20
Filed: 2002-04-02
Abstract: PURPOSE: A magnetic tape-cutting apparatus is provided to reduce the cost and to facilitate handling of the magnetic tape-cutting apparatus. CONSTITUTION: A magnetic tape-cutting apparatus(10) includes a storing unit for storing a position of a defect portion of an original roll of a magnetic tape, a winding apparatus(14) for reeling off the magnetic tape from the original roll and winding the magnetic tape as a product and a discharging unit(17) for removing the product including the defect portion based on information of a position of a defect of the storing member. The cost is reduced by the simplified structure of the magnetic tape-cutting apparatus.
Patent KR-20020035060-A (KR)
Inventor: BAE SEONG JIN
IPC: G01B15/00
Filed: 2002-04-08
Abstract: PURPOSE: A radiographic non-destructive test capable of measuring depth of flaw is provided to measure depth of the flaw almost without error. CONSTITUTION: A variable K is fixed to compensate distance(K) between a lower end surface of an object. A film(7) is exposed twice as a radiation source(9,10) moves at fixed interval. The depth of a flaw is measured from an image(5) of the flaw on a penetration photograph by an equation H=(B*T)/(A+B)-K where H is the depth of the flaw, A is moving distance of the radiation source, B is moving distance of the flaw, T is distance between the radiation source and the film. A second exposure time is to be twice as longer as a first exposure time to make a moving image of the flaw clear.
Patent KR-20030080793-A (KR)
Title: Union of O-Ring home
Inventor: PARK JONG SUNG
IPC: B23P17/00
Filed: 2002-04-10
Abstract: PURPOSE: An O-ring insertion groove of a union is provided to prevent a rubber ring from being offset from an original position due to the whirlpool in the pipe. CONSTITUTION: A union used for connecting pipes for a water duct is composed of an adapter(1), a nut(2), a pipe(3), and an O-ring(4). An insertion is formed on the end of the adapter. Fitting the O-ring on the insertion prevent the O-ring from being offset from the original position.
Patent KR-20020081669-A (KR)
Inventor: BHANDARKAR SUHAS
IPC: C03B37/016
Filed: 2002-04-18
Abstract: PURPOSE: A method for preparing silica glass body using sol-gel method, a method preparing an optical fiber preform by using the silica glass body prepared by the method and a method for preparing an optical fiber by using the optical fiber preform prepared by the method are provided, to improve the gel strength and the silica loading and to allow the impurities particles to be removed more easily. CONSTITUTION: The silica glass body is prepared by mixing 65 wt% or more of the silica particles having a specific surface area of 5-25 m2/g and containing 85 % or more of spherical particles with water to prepare sol; adding a water-soluble base to the sol to adjust pH of sol to be 10-13; adding a gelling agent to the sol; casting the sol into a mold; gelling the sol to form the gelled body; removing the gelled body from the mold; and firing the gelled body to sinter the gelled body into the silica glass body. Preferably the water-soluble base is tetramethylammonium hydroxide or tetraethylammonium hydroxide.
Patent KR-20030084034-A (KR)
Title: Gap adjustment apparatus for wafer and method of the same
Inventor: LEE GEUN TAEK
IPC: H01L21/30
Filed: 2002-04-24
Abstract: PURPOSE: An apparatus for controlling an interval between wafers in semiconductor fabricating equipment and controlling method therefor are provided to simplify the structure of the wafer interval control apparatus and reduce the wafer interval control apparatus in size by using two photodiodes and one light emitting diode. CONSTITUTION: A transfer unit(102) can move up and down to the wafer(110) to perform a fabricating process. A signal generating unit(104) generates an optical signal between the transfer unit and the wafer. When an interval between the transfer unit and the wafer is generated, a light receiving unit(106) receives the optical signal through a gap between the wafer and the transfer unit, converts the optical signal into an electrical signal, and outputs the electrical signal. A signal processing unit(108) receives the electrical signal from the light receiving unit and mechanically controls the transfer unit to move up and down so that the interval between the wafer and the transfer unit is controlled according to the characteristic of the wafer or the fabricating process.
Patent KR-20020084816-A (KR)
Inventor: HIGUCHI YASUSHI
IPC: C07C209/20
Filed: 2002-05-01
Abstract: PURPOSE: A method for preparing a quaternary ammonium inorganic acid salt and a method for preparing a quaternary ammonium inorganic acid salt mixture are provided, to prepare a quaternary ammonium hydroxycarboxylate of a high purity by industrially useful method. CONSTITUTION: The quaternary ammonium hydroxycarboxylate represented by the formula 3 is prepared by reacting a tertiary amine represented by the formula 2 and a hydroxycarboxylate represented by the formula 1, wherein R4, R5 and R6 are the same or different each another and are an alkyl or alkenyl group capable of having a substituent, any two of the three groups can combine to form an aliphatic or aromatic ring together with nitrogen atom, and any one of the three groups can combines with the other two groups to form bicyclic structure together with nitrogen atom; R1 is an alkyl group, an alkenyl group, an aralkyl group or an aryl group; and R2 and R3 are the same or different each other and are H, an alkyl group, an alkenyl group, an aralkyl group or an aryl group.
Patent KR-20020086243-A (KR)
Inventor: HUBER LOTHAR
IPC: H01L21/304
Filed: 2002-05-07
Abstract: PURPOSE: A method for cutting slices from a workpiece is provided to sufficiently control variation of the temperature of the workpiece by measuring the temperature of the workpiece in a cutting process and by transmitting the measured value to a control apparatus for generating a control signal used in a temperature control of the workpiece. CONSTITUTION: A workpiece(1) of a rod or block form is cut by using a saw. The temperature of the workpiece is measured during the cutting, and the measurement signal is transmitted to a control unit, which generates a control signal that is used to control the temperature of the workpiece, or wherein the temperature of the workpiece is controlled during the cutting by a control signal based on a predetermined control curve.