baber/WOPTO huggingface dataset:
Patent KR-20000032537-A (KR)
Title: Apparatus for activating fluid fuel
Inventor: NOH SUNG HWAN
IPC: F02M27/00
Filed: 1998-11-16
Abstract: PURPOSE: An apparatus for activating fluid fuel is provided to ignite fluid fuel almost completely by radiating far-infrared rays to the fluid fuel. CONSTITUTION: A radiating unit(20) of far-infrared rays is installed along the outer circumference of an air suction hole or a fuel injection hole(10). Far-infrared rays from the radiating unit activate air and fuel passing the air suction hole and the fuel injection hole respectively. That is, the air and fuel supplied to a burner is activated to improve combustion efficiency. Also, the air suction hole or the fuel injection hole is simply mounted without cutting or damaging a fuel feed pipe in other ways.
Patent KR-20000040399-A (KR)
Title: Plating method of electrode for generating highly efficient tooth chloric acid sodium
Inventor: KIM HUENG LAK
IPC: C25D3/50
Filed: 1998-12-18
Abstract: PURPOSE: A coating method of electrode for generating highly efficient sodium hypochlorite is provided to save a producing cost, to easily control thickness and to improve the generation of sodium hypochlorite by using a brushing method capable of obtaining a coat thin film having the improved uniform degree. CONSTITUTION: A coating thickness is regularized on the Ti surface as a basic material with a brushing method. The productivity efficiency of sodium hypochlorite and the coating adhesiveness are measured and analyzed by differentiating a composition ratio of Pt, Ru and Ir, and the composition ratio of Pt, Ru and Ir is decided. The coating thickness is decided by measuring and analyzing the productivity efficiency of sodium hypochlorite and the coating adhesiveness while changing the plating thickness of electrode under the decided composition ratio. Accordingly, the plating thickness is regulated with a brushing method to be coated into the decided coating thickness and is heat-processed at 400 to 600°C for one hour.
Patent KR-20000040751-A (KR)
Title: Treating method using separating membrane
Inventor: NO SU HONG
IPC: C02F1/44
Filed: 1998-12-19
Abstract: PURPOSE: A treating method using separating membrane is provided, which is characterized in that stockbreeding wastewater is settled and filtered so that the outcome can be reused as compost. CONSTITUTION: In the first concentration progress, NF(Nanofiltration) membrane like RDM(Rotary Disk Membrane Module) is used, and in the second concentration progress, RO(Reverse Osmosis) membrane like SWM(Spiral Wound Module) is used for concentrating. Urine in the storage tank is composed of excrement of small particles and livestock feed. Excrement and urine are separated, then, excrement is used for compost by controlling water content. Sawdust or rice hulls are used for controlling water content. NF membrane is used to overcome high osmotic pressure, and RO membrane guarantees stable water quality.
Patent KR-20000040772-A (KR)
Title: Process for preparing magnesia using naoh and ca(oh)2
Inventor: JEON UNG
IPC: C01F5/02
Filed: 1998-12-19
Abstract: PURPOSE: A process for preparing magnesia using caustic NaOHs and (Ca(OH)2) Slurry is provided to give high purified MgOs in degree of 99% or more of their purity, by only more simplified procedure. Thereby, some major impurities such as CaO, SiO2, Fe2O3, Al2O3 and the like in Mg(OH)2 are removed therefrom by the specific use of NaOH. CONSTITUTION: A process is to be obtained with MgO by using sea water. First, the precipitation is formed by mixing 0.21 to 0.43 wt% of NaOH and 0.083 wt% or less of (Ca(OH)2) and then immerging it into sea water. The thus-obtained precipitant is heat-treated to give the desired MgO. Also, the reaction is comprised of reacting, filtering, drying and sintering steps. The (Ca(OH)2) Slurry and NaOH are put into sea water to precipitate it from magnesium ion to give Mg(OH)2. The concentrated Mg(OH)2 slurry is dehydrated and converted to Mg(OH)2 cake. The cake is dried to give the Mg(OH)2 power. The resulting powder is heated to remove water therefrom and convert it into the desired MgO.
Patent KR-20000041264-A (KR)
Title: Method and device for reducing dust exhaust in production process of sintering ore
Inventor: YU DAE YEON
IPC: B01D53/74
Filed: 1998-12-22
Abstract: PURPOSE: A device for reducing dust exhaust is provided which quickly lowers the temperature of sintering exhaust gas and sends it to an electrostatic precipitator so that it maximizes a dust collection efficiency. CONSTITUTION: A device for reducing dust exhaust comprises: a coolant spray part(10) to supply a coolant for a sintering ore wherein a coolant header is placed in the upper part of a roll combinator(112) in a sintering machine(100), multiple coolant spray nozzles are placed in the coolant header toward the lower part, an automatic solenoid valve(30) is placed to control the flow of a coolant and a coolant pump is placed; a temperature detection sensor(60) which detects temperature of an exhaust gas to send an electric signal; and a controller(70) which opens the solenoid valve if the detected exhaust gas temperature exceeds the set figures to supply a coolant for the upper part of the sintering ore.
Patent KR-20000042147-A (KR)
Title: Method for producing super-light valve tappet of excellent abrasion resistance
Inventor: KIM MUN CHEOL
IPC: C23C4/12
Filed: 1998-12-24
Abstract: PURPOSE: A method is provided to produce a super-light tappet having excellent abrasion resistance economically by simple processes. CONSTITUTION: A super-light tappet(3) having excellent abrasion resistance is produced by using steel and super-light alloy powder such as mixed alloy of WC alloy having 40-60 micrometer of particle size, WC-12%Co alloy and amorphous iron alloy as powder for spraying at a speed over 800m/sec. Super-light coating of excellent abrasion resistance is formed on a forcible valve tappet by an explosive oxy-fuel coating and by employing an explosive oxy-fuel coating. Thereby, a super-light valve tappet of excellent mechanical characteristic is produced economically.
Patent KR-20000042353-A (KR)
Title: Structure for supporting horizontal blade of air conditioner
Inventor: SIM JEONG GAB
IPC: F24F13/00
Filed: 1998-12-24
Abstract: PURPOSE: A structure for supporting a horizontal blade of an air conditioner is provided to stably support a horizontal blade. CONSTITUTION: A pin(314) of a bracket(317) supplied to an upper face of a horizontal blade(230) is elastically inserted in a circular combination unit(316) of a supporting member(330). A stopper ring(318) is installed around the pin so that the pin(314) is stably fixed. Then the pin is prevented from flowing right and left, and the durability of a product is improved. Accordingly, the fixing structure of the horizontal blade prevents the displacement of horizontal blade. Further, the displacement of the horizontal blade is prevented by reducing the right and left flowing width of the horizontal blade.
Patent KR-19990064353-A (KR)
Title: 불순물 용기를 구비한 연료필터
IPC: B01D29/07
Filed: 1996-10-11
Abstract: 본 발명은 연료배출구(16)와 연료 주입구를 구비하는 몸체(12)와 개방구가 있는 하부를 구비하고 상기 몸체(12)와 하우징의 상부단부가 접속되는 하우징(22)을 사용하여 불순물용기(66)로 향상된 전달을 제공하는 연료필터에 관한 것이다.  필터요소(36)는 하우징안에서 유지되고, 필터요소(36)는 하단부(44)를 구비한다.  내부통로는 몸체 연료배출구(16)와 전달하여 필터요소(36)에 제공되어지고, 필터요소(36)의 외부는 몸체연료주입구(14)와 전달되어진다.  지지판(54)은 필터 하단부(44)가 존재하는 하우징의 하부단부 부분안에서 위치되어진다.  불순물용기(66)는 하우징 하부에서 지지되어진다.  지지판(54)은 하우징(22)의 내부와 불순물용기사이에서 전달을 제공하는 스파이럴 유체 통로(82)를 구비하고, 통로(82)는 불순물용기(66)안에서 하우징(22)의 내부로부터 유동하기 위해서, 물과 같은, 액체 불순물을 허용한다.  스파이럴 유체통로(82)는 하우징(22)안에서 유체 난류로부터 불순물용기(66)의 내부(76)에서 실질적으로 격리시키는 작용을 한다.
Patent KR-19990071475-A (KR)
Title: 제어기 하드웨어 부 구성요소 식별자를 이용한 적응 장치 드라이버
IPC: G06F13/10
Filed: 1996-11-21
Abstract: 다수의 기능 부 구성요소를 포함하는 제어기 장치의 컴퓨터 인터페이스에 운영 체계(54)를 결합하는 장치 드라이버(50) 구조가 제공된다. 장치 드라이버는 운영 체계 인터페이스(OSI)를 운영 체계에 제공하는 각각의 다수의 운영 체계 인터페이스 객체를 포함한다. 장치 드라이버 라이브러리는 컴퓨터 인터페이스에 대한 프로그래밍 값의 생성 및 응용을 정의하도록 실행 문맥을 선택한다. 하드웨어 인터페이스의 상태는 가상화되어, 이산 문맥에 유지되고, 선택된 운영 체계 이벤트에 응답하여 장치 드라이버에 전용 문맥 스위칭을 통해 하드웨어 인터페이스의 상태의 응용 특성 동적 변경을 허용한다.
Patent KR-19990071793-A (KR)
IPC: C25D21/00
Filed: 1996-09-27
Abstract: PCT No. PCT/EP96/04232 Sec. 371 Date Jun. 4, 1998 Sec. 102(e) Date Jun. 4, 1998 PCT Filed Sep. 27, 1996 PCT Pub. No. WO97/23665 PCT Pub. Date Jul. 3, 1997The invention relates to a method of generating short, cyclically repeating, unipolar or bipolar pulse currents IG, IE for electroplating, and to a circuit arrangement for electroplating with which pulse currents IG, IE can be generated. Electroplating methods of this type are referred to as pulse-plating methods. According to the invention, the secondary winding 6 of a current transformer 1 is connected in series into the electroplating direct current circuit 5, consisting of a bath direct current source 2 and a bath which is contained in an electroplating cell and which is represented by resistor RB. The primary winding 7 of the transformer has a larger number of turns than the secondary winding. The primary winding is controlled with pulses of high voltage and with relatively low current. The high pulse current on the secondary side temporarily compensates in pulses the electroplating direct current. This compensation can be a multiple of the electroplating current, such that deplating pulses with high amplitude are produced. The capacitor 10 guides the compensating current through charging and discharging. Through the invention, the necessity of using in pulse-plating the known electronic high current switches, which work uneconomically because of the great current conduction losses, is avoided.
Patent KR-20000034789-A (KR)
Title: Plastic recycling process and process for producing plastic materials
Inventor: SCHALLENBERG GUENTER
IPC: C08L101/00
Filed: 1997-06-10
Abstract: PURPOSE: A process for recycling and producing plastics is provided, which plastics are plastics mixtures or from sorted and unsorted plastic waste. CONSTITUTION: The process of the invention includes: a) a substrate material A, which comprises a newly produced plastic material or plastic waste material comprising a uniform single type of plastic or various plastics, a material of any or unknown composition X and an additive Z selected from among fatty acids, fatty acid-containing mixtures of natural or synthetic origin, fatty acid derivatives and fatty alcohols releasing fatty acids in the process conditions are mixed together; b) the mixture is transported by a conveyor and subjected along the conveyor path to a multi-step heat treatment in sections while continuing to be subjected to mechanical mixing, kneading or pressing, where the temperatures in the various steps lie mutually independently in a range from 60 to 400°C; and c) the heat-treated mixture is ejected through a nozzle for further treatment or shaping.
Patent KR-20000016714-A (KR)
Title: Vegetable extract, method for preparation thereof and its applications in human and veterinary medicine
Inventor: GILLESSEN HUBERT JEAN MARIE
IPC: C12N5/071
Filed: 1998-04-16
Abstract: PURPOSE: Disclosed are a biologically active plant extract to be obtained by means of a method for preparation and veterinary medicine. CONSTITUTION: The method comprises the following steps of: a) pressing a vegetable material to pulp; b) subjecting the obtained pulp to a cold or hot treatment with an aqueous or organic solvent; c) removing the solvent until a determined degree of concentration is obtained; and d) optional further purifying of the thus obtained extract by one or more of the following methods; thermo coagulation, purification with ammonium sulphate, precipitation, chromatography on gel or ion-exchange resin.
Patent KR-20000022334-A (KR)
Title: Lectin compositions and uses thereof
Inventor: FISH NEIL WILLIAM
IPC: A61K31/337
Filed: 1997-06-20
Abstract: PURPOSE: Provided is a method for using a metabolism effect and tissue protection faculty of lactin to protect or recover damaged biological substances by chemical or radical treatment. CONSTITUTION: Provided is use of lactins in the manufacture of medicaments for the control of mucosal cell proliferation, for the reduction and/or treatment of damage caused by a cell-damaging agent and for the reduction and/or treatment of metabolic disorders, as well as compositions and diets comprising lectins, their use in medical and non-medical fields and the use of soya waste products, in particular the soya whey fraction, in the manufacture of the above medicaments and compositions.
Patent KR-19990068035-A (KR)
Title: 선내 빌지수 처리장치
IPC: B63J4/00
Filed: 1999-01-21
Abstract: 본 발명은, 단일 탱크에 빌지수 농축부와 농축 빌지수 저류부를 설치하여 장치의 소형화를 도모하면서, 빌지수의 농축을 능률적으로 잘 행할 수 있도록 함과 동시에, 빌지수로부터 증발된 수증기의 배출을 탱크 최상부의 배출부로부터 능률적으로 행할 수 있도록 한 선내 빌지수 처리장치를 제공한다. 
     탱크 (T) 의 상반부 및 하반부에 각각 빌지수 농축부 (A), 농축 빌지수 저류부 (B) 를 구비하고, 펌프 (23) 및 배관 (6) 을 통하여 순환하는 빌지수가, 빌지수 농축부 (A) 에서는 살포관 (7) 에서 탱크내로 살포되고, 열교환기 (8) 에 의해 가열되어 수분증발이 행해진다.     농축된 빌지수는 그 저류부 (B) 에 저류된다.     증발된 수분은 다이어프램 댐퍼 (25) 가 부착된 통풍관 (26) 으로부터의 통풍에 의해 탱크내에서 밀어올려져, 데미스터 (14) 를 통하여 탱크 최상부로 유도되어, 유인통풍기 (27) 로 배출된다.
Patent KR-20000060385-A (KR)
Inventor: CHO HAN SUNG
IPC: B60G23/00
Filed: 1999-03-15
Abstract: PURPOSE: A level control device of a vehicle is provided to always maintain horizontality when a vehicle is driving. CONSTITUTION: A level control device of a vehicle comprises: a level sensing device(10) to be fixed in a body and to detect horizontally the degree and direction for gradient of a vehicle; a control device to calculate and output values for lifting and lowering a body of an inclined side according to detected values of the level sensing device; adjustment devices(31-34) to lift and lower the body of the inclined side.
Patent KR-19990077958-A (KR)
Title: 바닥광택제조성물의외관개선방법
IPC: C09G1/16
Filed: 1999-03-17
Abstract: 바닥 광택제 조성물의 외관을 2가 구리 이온 교차결합제를 조성물내의 중합체 고형분을 기준으로 50 ~ 5000ppm의 양으로 사용함으로써 개선될 수 있다.
Patent KR-20000065272-A (KR)
Inventor: YEO GWON GU
IPC: F01N3/28
Filed: 1999-04-01
Abstract: PURPOSE: A system is provided to effectively reduce NOx by arranging an electrically heated catalyst, NOx occlusion catalyst and a ternary catalyst. CONSTITUTION: A system comprises a close coupled catalyst consisting of an electrically heated catalyst(30) having a temperature sensor(70) so as to be allowed to operate when air-fuel ratio of an engine(40) is high, and an NOx occlusion catalyst(10) using an existing or a thin wall carrier; and an underflow catalyst consisting of a ternary catalyst(20) where a rhodium is high-loaded. Thus, effective regeneration of catalyst and elimination of NOx is obtained.
Patent KR-20000062067-A (KR)
Inventor: LEE CHANG JIN
IPC: B43M99/00
Filed: 1999-03-30
Abstract: PURPOSE: Stationery containing yellow soil that can alleviate toxicity is provided. The yellow soil is abundant in a variety of minerals, and applied to stationery in the form of fine powder. CONSTITUTION: To achieve the beforementioned purpose, firstly a predetermined amount of yellow soil is collected, screened, and disinfected to remove harmful factors. And then, the processed yellow soil is put in a container which is full of water. As time goes by, the mixture consisted of water and yellow soil is separated into two layers, i.e sediments precipitates at the bottom part and yellow soil solution is located in the upper part. The yellow soil solution/power is added in the manufacturing process of sorts of stationery.
Patent KR-19990046659-A (KR)
Title: 버섯의접종방법
IPC: A01G1/04
Filed: 1999-04-12
Abstract: 종균의 접종에서 식균까지의 기간을 단축하고 접종된 종균을 다시 분쇄하지 않고 식균하므로 생육이 충실하고 품질이 우수한 버섯을 재배할 수 있도록, 톱밥과 물을 혼합하여 종균배지를 만드는 배지공정과, 배지공정에서 만든 종균배지를 다수의 종균홈이 형성된 성형판에 담는 성형공정과, 종균배지가 담긴 성형판을 살균하는 살균공정과, 무균실에서 성형판에 담긴 종균배지에 종균(균사)을 접종하는 배지접종공정과, 접종된 균사를 숙성시키는 숙성공정과, 원목에 성형판에 형성된 종균홈의 크기에 대응하는 크기로 다수의 구멍을 가공하고 각 구멍에 성형판에서 숙성되어 종균홈으로부터 배출된 종균을 식균하는 원목접종공정으로 이루어지는 버섯의 접종방법을 제공한다.
Patent KR-20000067693-A (KR)
Inventor: PARK IL HYUNG
IPC: A61F5/04
Filed: 1999-04-30
Abstract: PURPOSE: A coil type fixing screw for curing a bone fracture is provided to efficiently maintain the bone fracture or the bone fracture part. CONSTITUTION: A coil type fixing screw for curing a bone fracture includes a head part(110); and a body part(120) including a supporting part(121) changeable in length according to the characteristic of the bone fracture and a purpose of a metallic screw, and a coil type fixing part(122) formed as a coil shape having a hollow center and the thickness, the diameter, the lead, and the pitch of the coil are capable of being controlled according to the part to be used.
Patent KR-20000073017-A (KR)
Inventor: JANG SE WON
IPC: E04H4/04
Filed: 1999-05-04
Abstract: PURPOSE: A fabricated swimming pool is provided to be conveniently assembled and installed. CONSTITUTION: In case of an installation of a fabricated swimming pool, a lateral supporting pipe(140) is inserted into an inserting hole and both ends of the lateral supporting pipe is sequentially fitted with a right and left combining bar if an upper connecting hole(130). After the combination with the pipe and the bar, the upper end of a vertical supporting pipe(150) is fitted with a combining bar branching from the upper connecting hole. The lower end of the vertical supporting pipe is fitted with a combining bar branching from a lower connecting hole(120). In this state, a water supplier fills the swimming pool with water.
Patent KR-19990064769-A (KR)
Title: 휴대용 자동경보기
Filed: 1999-05-08
Abstract: 본 발명은 긴급상황시 사용자의 위치를 자동으로 전송할 수 있도록 된 새로운 개념의 휴대용 자동경보기에 관한 것이다. 
     본 발명에 따르면, 밴드(12) 또는 걸이줄(14) 등을 이용하여 신체에 착용할 수 있도록 된 본체(2)와, 맥박이나 혈압 또는 체온과 같은 사용자의 상태를 감지하는 인체상태감지장치(4) 또는 상기 밴드(12)나 걸이줄(14) 또는 본체(2)의 파손 등과 같은 이상유무를 감지하는 파손감지장치(18)와. 사용자의 위치를 확인하여 위치신호를 출력하는 위치확인장치(6)와, 상기 본체(2)에 내장되며 상기 감지장치와 위치확인장치(6)에 연결되어 감지장치의 신호에 따라 제어신호를 출력하는 제어기(8)와, 이 제어기에 연결되어 제어기(8)의 제어신호에 따라 위치신호를 송신하는 송신기(10)를 포함하여 구성되는 것을 특징으로 하는 휴대용 자동경보기가 제공된다.
Patent KR-20000074755-A (KR)
Inventor: KIM MYEONG SEOK
IPC: C10L1/223
Filed: 1999-05-25
Abstract: PURPOSE: A hydro poly oxyalkylene oxyalkyl amine compound excellent in cleaning effects on inlet valves and capable of inhibiting and preventing octane number requirement increase in a carburetor is provided which efficiently constricts precipitate and sludge formation in an inlet valve in a combustion chamber of automobiles when added to gasoline. CONSTITUTION: The hydro poly oxyalkylene oxyalkyl amine compound of formula 1 is prepared by reaction of hydroxyalkyl amine of formula 3 and alkylene oxide containing 2 to 10 carbons, preferably alkylene oxide containing 2 to 5 carbons. The hydro poly oxyalkylene oxyalkyl amine compound is dissolved in an inactive organic solvent as an aliphatic or aromatic organic solvent having a boiling point of 65 to 205°C in an amount of 10 to 80% by weight.
Patent KR-19990064945-A (KR)
Title: 착탈겸용 송수화기를 구비한 전화
Filed: 1999-05-25
Abstract: 개시된 내용은  전화의 유무선 송수화기를 접개식으로 특수하게 제작하여, 평상시에는 손으로 쥔 상태로 통화를 하고 특별히 손을 사용해야 하는 상황에서는 얼굴에 착용하여 통화를 할 수 있는 착탈겸용 송수화기를 구비한 전화에 관한 것이다.  본 발명의 장치는,  입력된 다수의 기능 및 통화자와 상대방간의 통화내용에 대한 송수신이 가능하도록 처리하는 신호처리부,  다수의 번호 및 기능을 입력하는 입력조종부  및,  접개식으로 제작되어 특정한 형태로 변형시켜 얼굴에 착용할 수도 있는 송수화부가 부착된 접개식송수화기를 구비하고 있다.  따라서, 본 발명은 일반적인 송수화기를 접개식으로 조립·제작하여 손으로 쥔 상태에서 통화하는 것뿐만 아니라, 전체형태를 변형하여 얼굴에 착용한 상태에서도 통화할 수 있는 효과를 제공한다.
Patent KR-19990088580-A (KR)
IPC: H01L21/8242
Filed: 1999-05-27
Abstract: 본 발명은 긴 채널 길이를 갖는 수직 전달 소자(vertical transfer device)를 구비하는 5 평방(square) 동적 랜덤 액세스 메모리(dynamic random access memory: DRAM) 셀에 관한 것이다.  본 발명의 구조에서는, 채널 길이가 셀 크기 스케일링 요건(scaling requirements)의 영향을 받지 않는다.
Patent KR-20000074978-A (KR)
Inventor: LEE DONG YEOP
IPC: H01L21/027
Filed: 1999-05-27
Abstract: PURPOSE: A method for variably controlling disposition intervals of slit sensors is provided to precisely perform a focusing and a labeling regarding an exposure region of a wafer, by using five slit sensors in extracting labeling data. CONSTITUTION: Light generated at a light source(100) is changed to a focused light beam. The focused light beam passes through a slit array(120) wherein a plurality of slits are formed as a matrix format, the slits being penetrated by light, and is irradiated to a wafer substrate. The light beam reflected on the wafer substrate is detected to focus the wafer substrate and perform a labeling. The light beam passing through the slit array and reflected on the wafer substrate is zooming-controlled to vary disposition intervals of the slits.
Patent KR-20000074994-A (KR)
Inventor: LEE CHANG U
IPC: E03B11/02
Filed: 1999-05-27
Abstract: PURPOSE: A finishing material for wall of water tank and a manufacturing method thereof are provided to facilitate the carrying and keeping, and improve the durability and exterior appearance. CONSTITUTION: A finishing material for wall of water tank comprise; a finishing material(100) which is formed in monolith by charging and pressing a plastic-foam insulation material(2) into the inside of fixed case(1) which is formed in vacuum; and an interior-finish panel(10) of water tank which the finishing material is installed in the outside. A manufacturing method comprises the steps of; softening a synthetic resins of ABS film by heating plate(4), and forming a fixed case with vacuum suction using a vacuum molding frame(3); injecting the liquid urethane resins(2) as insulation material into the fixed case; laying a release film on the urethane resins, and pressing the fixed case and the urethane resins by press(5), and then forming the finishing materials by uniting the fixed case with the insulation material; and hardening the finishing material which is formed as a finishing material, and then completing the end-products.
Patent KR-20010001224-A (KR)
Inventor: SEO SEONG RYEOL
IPC: G01N21/88
Filed: 1999-06-02
Abstract: PURPOSE: A method and device for inspecting error in a wafer is provided to rapidly and accurately perform a first error inspection by automating the error inspection by a surface color of the wafer. CONSTITUTION: A device for inspecting error in a wafer includes a supporter(14) for supporting a wafer(12), a light source(10) for illuminating light on a wafer surface laid on the supporter, image pick-up means(16) for collecting light reflected from the wafer surface and picking up color image of the wafer surface, an analog-digital converter(18) for receiving color image signal from the image pick-up means and converting into digital data, a data processor(20) for processing digital data to comparison data, a database(24) embodying reference data corresponding to reference color image of the wafer surface according to material and thickness of a thin film formed on the wafer, determining means(22) for comparing comparison data of the data processor and reference data embodied in the database and determining error, and a display for displaying reference data corresponding to comparison data.
Patent KR-20010004834-A (KR)
Inventor: LEE GU HYEON
IPC: C23C8/20
Filed: 1999-06-30
Abstract: PURPOSE: A method for hardening the surface of wearing resistant components by using carbides is provided, to overcome the inhibition of carburizing due to the Cr oxide formation and allow the soot to be removed easily. CONSTITUTION: The method comprises the steps of heating a carburizing furnace at 850-1050 deg.C, supplying the hydrocarbon gas such as methane, propane and butane or the mixture gas of hydrocarbon gas and carbon dioxide into the furnace and degrading the gases to forming 1.0-4.0 % carbon potential atmosphere, and carburizing alloy steel containing carbide-forming elements such as Cr or Mo to form 20-80 % carbide layer; quenching it; and tempering it. Preferably ammonia gas is supplied into the furnace in the carburizing step.