baber/WOPTO huggingface dataset:
Patent KR-20040043335-A (KR)
Title: Auto-tensioner in timing chain
Inventor: PARK CHI HUN
IPC: F16H7/08
Filed: 2002-11-18
Abstract: PURPOSE: An automatic tension regulator of a timing chain is provided to supply constant tensile force to the timing chain without an automatic tensioner and a tensioner fixing structure by automatically regulating the tension to the change of the tensile force of the timing chain. CONSTITUTION: An automatic tension regulator of a timing chain(T) is composed of a bracket(50) fixed and combined to an engine cylinder block by a bolt; a chain guide(30) rotatively combined to the side of the bracket by a pivot pin(54) to elastically support a portion of the timing chain; a leaf spring(35) installed in the chain guide to supply elastic force to the chain guide to the tension states of the timing belt; and a guide inducing plate(55) surface-contacted to the chain guide to guide the rotation of the chain guide in rotating the chain guide. The leaf springs are plurally layered.
Patent KR-20030085461-A (KR)
Title: Optical pickup and wedge type beam splitter
Inventor: CHO YONG JUN
IPC: G11B7/1395
Filed: 2002-11-21
Abstract: PURPOSE: An optical pickup and a wedge-shaped beam splitter are provided to receive beams without interference of the beams due to inner reflection in a plate type beam splitter at an effective light receiving area of a front photo detector. CONSTITUTION: At least one or more light sources emit beams(21a,31a). An objective lens(29) focuses the incident beams to be formed as optical spot on a recording medium(10). A plate type beam splitter(25) transmits and reflects the incident beams at a predetermined ratio. At least one or more main photo detectors receive the reflected beams for detecting an information signal and/or error signal. A front photo detector(26) is arranged on one side of the plate type beam splitter for receiving the transmitted or reflected beam to generating an automatic power control signal for controlling optical output of the light sources. At least one or more collimating lenses(24,34) are arranged between the light sources and the plate type beam splitter.
Patent KR-20040045247-A (KR)
Title: Bangyeol Ondol System
Inventor: PARK BANG YEOL
IPC: E04F15/20
Filed: 2002-11-25
Abstract: PURPOSE: A hot-water hypocaust construction method with an excellent reduction effect for a floor impact sound is provided to provide pleasant residential sound environment by reducing an impact sound on a floor. CONSTITUTION: The hot-water hypocaust construction method with an excellent reduction effect for a floor impact sound is completed by placing a shock-absorbing device(10), an adiabatic layer(30), a hot-water pipeline member(40) and a finishing member(60) in order on the upper part of a slab to reduce a floor impact sound.
Patent KR-20040048024-A (KR)
Title: Assembly of a cup holder in vehicles
Inventor: LEE YEONG BEOM
IPC: B60N3/10
Filed: 2002-12-02
Abstract: PURPOSE: A cup holder structure is provided to be installed in a narrow space inside a vehicle. CONSTITUTION: A housing(100) has a frame. A lid(110) opens and closes the housing. A storing portion(120) has a shape to insert a cup. A link(140) is combined with the housing and the storing portion to be foldable. A guide hole(170) is formed in the housing to guide the movement of the storing portion. The storing portion is arranged to store the cup by folding the link. The lid supports the cup.
Patent KR-20040048174-A (KR)
Title: System for Payment Group Buying and Method for Servicing by Using Credit Card with Group Buying Code
Inventor: HONG JONG CHEOL
Filed: 2002-12-02
Abstract: PURPOSE: A system for the group buying payment using a credit card linked with a group buying managing server storing a group buying code and a service method thereof are provided to buy goods at a discounted group buying price on the offline when the user pays the goods with the credit card storing the information for the group buying promoted on the wire/wireless Internet by linking with the credit card information. CONSTITUTION: A group buying web server(100) performs the group buying on the wire/wireless Internet and generates the group buying information. A client applies for the group buying on the web server. A group buying code providing server(105) generates the group buying code by receiving the group buying information generated from the web server. A group buying managing server(125) receives/stores the group buying code from the group buying code providing server. A credit card settlement terminal(140) extracts the credit card information from the credit card(100). A certification server(135) extracts the group buying code linked with the credit card through the group buying managing server by receiving the credit card information from the credit card settlement terminal.
Patent KR-20030045622-A (KR)
Title: Manifold for Solenoid-operated Valve
Inventor: FUKANO YOSHIHIRO
IPC: F16K27/00
Filed: 2002-12-02
Abstract: PURPOSE: To miniaturize a manifold for a solenoid valve which easily mounts and demounts the manifold for the solenoid valve, and the solenoid valve. CONSTITUTION: This manifold comprises an approximately rectangular body 14, a connecting part 26 where a fluid passage for intake/exhaust of the pressure fluid of the solenoid valve 12, an engagement groove 22 formed on an upper face of the body 14, a mounting hole 40 formed inside of the body 14, a stopper member 16 inserted into the mounting hole 40 in a state of being locked inside at its one end part, a spring part 50 expandably and contractibly formed on the stopper member 16, and an engagement hole 56 formed on one face of the stopper member 16 and engaged with the connecting part 26 under the displacement action of the stopper member 16.
Patent KR-20040049641-A (KR)
Title: Intake system mounter for an engine
Inventor: LEE SEUNG SEOK
IPC: F16F15/08
Filed: 2002-12-06
Abstract: PURPOSE: An engine intake mounter is provided to reduce the vibration of a rubber hose to be transferred to a stub manifold and the vibration of an intake manifold to be transferred through an intake manifold stay. CONSTITUTION: A first installing portion(9) is formed in a stub manifold(3) including a rubber hose(1) toward a cylinder head. The first installing portion comprises a fixing boss(15) and a fixing screw(17). The fixing boss is formed in the stub manifold toward an intake manifold(5) and has a screw therein and a fixing screw(17) to fix the one side of a bracket(13) by screwing with the fixing boss. A second installing portion(11) is formed in the intake manifold toward a cylinder block. The second installing portion comprises a fixing boss(19), a fixing screw(21) and an isolator(23). The fixing boss is formed in the intake manifold toward the same direction as the stub manifold and has a screw therein. The fixing screw fixes the other side of the bracket by screwing with the fixing boss. The isolator reduces the vibration by including between the fixing screw and the bracket. The bracket connects the first installing portion with the second installing portion. Thereby, the vibration not only of the stub manifold but also of the intake manifold is reduced.
Patent KR-20030053446-A (KR)
Title: Connecting structure of branch connector in fuel pressure accumulating container
Inventor: USUI MASAYOSHI
IPC: F16L41/08
Filed: 2002-12-20
Abstract: PURPOSE: A connection structure of a branched connector in a fuel pressure accumulator is provided to improve internal pressure fatigue strength by reducing the maximum stress value generated at the internal peripheral edge at the lower end of the branch connector as a branch pipe and a joint-fixing tool. CONSTITUTION: In a connection structure of a branched connector in a fuel pressure accumulator with inserting and joining the branch connector to a through-hole(1-2) formed on an internal peripheral wall(1-1a) of a fuel pressure accumulating container(1), the branched connector is deeply inserted into the through hole until the end of the branch connector is projected from the inner peripheral wall surface of the pressure accumulating container into the inside of the container. In addition, the branched connector includes a branch pipe(2) or a branch joint-fixing tool joining to the through-hole with being inserted into the through-hole.
Patent KR-20040056019-A (KR)
Inventor: AHN IN HO
IPC: G02F1/13357
Filed: 2002-12-23
Abstract: PURPOSE: A back light unit of an LCD device is provided to apply an embossing process to a semi-light receiving portion of a sub light guide plate, and to condense light to minimize light loss while reflecting the light, thereby improving brightness. CONSTITUTION: A main light guide plate(71) is configured on a rear side of an LCD panel. A sub light guide plate(72) configures a semi-light receiving portion in embossing type on an incident surface of the main light guide plate(71). A light source portion(73) is formed on one side of the sub light guide plate(72), first-dimensionally arrays RGB LEDs, and emits light. A housing(74) fixes the light source portion(73), and condenses the light emitted from the light source portion(73) in one direction. The first and second reflecting plates(75,76) are configured in a lower section of the main light guide plate(71), and reflect light leaking from an opposite side to an LCD panel.
Patent KR-20040056578-A (KR)
Title: High wear resistant and high conductive copper alloys and the manufacturing method
Inventor: PARK U JIN
IPC: B22F3/115
Filed: 2002-12-24
Abstract: PURPOSE: A high conductive copper alloy having superior wear resistance is provided in which Si particles having superior wear resistance are dispersed to prevent deterioration of conductivity and heat transfer property of matrix, and a manufacturing method of the high conductive copper alloy is provided. CONSTITUTION: The high conductive copper alloy having superior wear resistance is characterized in that it is formed in a bulk phase green compact in which 10 to 50 wt.% of Si particles having a particle size of 15 μm or less as additive are dispersed into matrix structure of a balance of Cu. The method comprises the process of obtaining a bulk phase green compact by spraying the melted material in the liquid state at a high pressure after melting 10 to 50 wt.% of Si particles as additive and a balance of Cu as matrix, wherein the Si particles having a particle size of 15 μm or less are dispersed into structure of the matrix, and wherein the bulk phase green compact is formed by laying up droplet sprayed by high pressure spraying on a substrate that is being rotated.
Patent KR-20040056787-A (KR)
Title: Column predecoder controlling circuit available for controlling out signal pulse
Inventor: KANG BYEONG JU
IPC: G11C11/40
Filed: 2002-12-24
Abstract: PURPOSE: A column predecoder control circuit capable of controlling an output pulse is provided to control a pulse width of a column predecoder control signal easily, by comprising a transfer part controlled by a specific signal received from the external. CONSTITUTION: The first predecoder control signal output part(20) outputs the first predecoder control signal. The first pulse control part(21) controls a pulse width of the first predecoder control signal by receiving a plurality of specific signals from the external. The second predecoder control signal output part(22) outputs the second predecoder control signal. And the second pulse control part(23) controls a pulse width of the second predecoder control signal by receiving the plurality of specific signals.
Patent KR-20040057348-A (KR)
Title: Method for fabrication of semiconductor device
Inventor: HWANG CHANG YEON
IPC: H01L21/283
Filed: 2002-12-26
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of preventing electrical short between a storage node contact and a bit line contact. CONSTITUTION: The first insulating layer(45) is formed on a semiconductor substrate(40). A plurality of plugs(46) are formed through the first insulating layer. The second insulating layer(47) is formed on the resultant structure. A bit line contact plug(48) is formed to contact the plug through the second insulating layer. A bit line including a conductive layer(49) and an insulating hard mask(50) is formed on the bit line contact plug. A recess region(51) is formed by partially etching a portion of the bit line contact plug.
Patent KR-20040057836-A (KR)
Title: 2 bits flash cell by employing 0.35 ㎛ standard process and method for manufacturing the same
Inventor: LEE SANG YONG
IPC: H01L21/336
Filed: 2002-12-26
Abstract: PURPOSE: A 2-bit flash memory cell using 0.35 micro meter standard processing and a method for manufacturing the same are provided to simplify process and to reduce cost by using a single gate oxidation. CONSTITUTION: A source(230) and a drain(232) are formed in a silicon substrate(200). A gate oxide layer(202) is formed on the silicon substrate. The first and second gates(210,212) are formed on the gate oxide layer. An ONO(SiO2/Si3N4/SiO2) structure is then formed by sequentially forming a lower oxide layer(222), a nitride layer(224) and an upper oxide layer(226) on the first and second gate. The ONO structure is connected with the first and second gate to control the coupling ratio, and the ONO structure is covered on the entire surface of the first and second gate to improve the retention characteristics of a flash cell.
Patent KR-20040059782-A (KR)
Title: Method of forming isolating layer for semiconductor device
Inventor: LEE SEONG EUN
IPC: H01L21/76
Filed: 2002-12-30
Abstract: PURPOSE: A method for forming an isolation layer of a semiconductor device is provided to prevent malfunction and a defect of a device and improve reliability of the device by using an oxide layer in a trench formation region and by easily forming a deep trench having a uniform depth in the entire wafer. CONSTITUTION: A pad oxide layer(11) and a pad nitride layer(12) are sequentially formed on a semiconductor substrate(10). A photoresist pattern is formed on the pad nitride layer. The pad nitride layer and the pad oxide layer are etched to expose a part of the substrate by using the photoresist pattern as an etch mask so as to form an insulation layer pattern(100). Oxygen ions are implanted into the exposed substrate by using the photoresist pattern and the insulation layer pattern as an ion implantation mask so as to form an oxygen ion implantation layer inside the substrate. The photoresist pattern is eliminated. A heat treatment is performed on the substrate to transform the oxygen ion implantation layer into an oxide layer(14A). The substrate is etched to expose the oxide layer by using the insulation layer pattern as an etch mask so as to form a trench(15).
Patent KR-20040061732-A (KR)
Title: Extracts from Orira, Gboigboi, Osusu and these partitions
Inventor: AHN DEOK GYUN
IPC: A61P9/08
Filed: 2002-12-31
Abstract: PURPOSE: Provided are extracts of Anogeissus leiocarpus, Cnestis sp. and Drypetes molunduana and fractions thereof which are used as raw materials of blood circulating agents and blood vessel relaxants. CONSTITUTION: Blood circulating agents and blood vessel relaxants are characterized by containing at least one kind of extracts of Anogeissus leiocarpus, Cnestis sp. and Drypetes molunduana and fractions thereof. The extracts are obtained by using methanol as an extraction solvent, filtering the extracts, concentrating the filtrates and drying them. A pharmaceutical composition contains at least one kind of the extracts of Anogeissus leiocarpus, Cnestis sp. and Drypetes molunduana.
Patent KR-20020056900-A (KR)
IPC: H04N21/45
Filed: 2000-10-06
Abstract: 각 시청자에게 적합한 광고방송을 선명한 화상에 의해 제공한다. 
     텔레비전 프로그램(프로그램 R, 프로그램 S)을 미리 하드 디스크 메모리(11)에 축적하여 둔다.  또한, 각 기업으로부터 송신되는 복수 종류의 텔레비전 광고방송 중에서 시청자에게 적합한 텔레비전 광고방송(광고방송 a, 광고방송 b, …)을 각 시청자가 미리 등록한 시청자에 관한 정보에 따라 선택하여 하드 디스크 메모리(11)에 축적한다.  텔레비전 프로그램 사이에 방송하는 텔레비전 광고방송으로서 축적한 텔레비전 광고방송을 끼워 넣어 하나의 텔레비전 프로그램(20)을 제작한다.  시청자는 리모트 콘트롤러(13) 등의 조작에 의해 원하는 텔레비전 프로그램을 선택함으로써, 텔레비전 프로그램과 함께 자신에게 적합한 텔레비전 광고방송을 볼 수 있다.
Patent KR-20020059746-A (KR)
Title: 불휘발성 반도체 기억 장치 및 그 제조 방법
IPC: H01L21/28
Filed: 2001-09-28
Abstract: 본 발명의 목적은 메모리셀 마다의 전기적 특성의 불균일이 생기기 어려운 불휘발성 반도체 기억 장치를 제공하는 것이다.  기판상에 설치되는 부유 게이트 전극을 캐리어 포획 효율이 다른 2종류 이상의 재료로 구성하고, 상기 부유 게이트 전극에 캐리어를 축적시켜 데이터를 기억시킴으로써, 임계치 전압이 별로 변화하지 않는 영역을 생기게 하여, 그 변화가 작은 부분을 회로 동작의 마진으로서, 셀마다의 불균일이나 고속동작을 실현한다.
Patent KR-20020073166-A (KR)
IPC: C07C269/00
Filed: 2001-01-11
Abstract: 본 발명은 대규모로 사용될 수 있는 화학식 I의 화합물의 제조방법에 관한 것이다. 
     화학식 I 
     
       
     
     위의 화학식 I에서, 
     라디칼 R 1 과 R 2 는 명세서와 청구의 범위에서 정의된 바와 같다.
Patent KR-20020074208-A (KR)
IPC: G01J3/10
Filed: 2000-10-10
Abstract: 광보안특성을 가지는 대상을 인증하기 위한 자동화된 인증장치는 고아시스템, 전송단계장치 및 해석장치를 포함한다. 광시스템은 협대역 또는 광대역 광빔을 발생할 수 있는 하나 또는 그 이상의 광원을 포함한다. 
     전송단계장치는 상기 광원과 협동하고 하나 또는 그 이상의 광빔이 보안특성이 위치되는 대상의 부분을 비추도록 대상을 위치시켜 배치된다. 해석장치는 대상으로부터 반사되거나 전송되는 광빔을 수용하고 대상을 인증하기 위해 변화하는 각도 또는 파장에서 광비의 광특성을 해석하기 위해 채용된다.
Patent KR-20020080386-A (KR)
Title: 수직방향의 흡수전도능력 및 리웨트능력이 개선된흡수제제품
IPC: A41B9/12
Filed: 2001-01-30
Abstract: 본 발명은 흡수제재용 흡수제코어 및 흡수제코어 및 흡수제재를 만드는 방법에 관한 것이다. 흡수제코어는 유칼립투스나 화학처리된 섬유와 같은 압축성 섬유로 만들어진 별개의 흡수전도층을 갖는다. 흡수제코어 및 그것으로 만들어진 흡수제재는 수직방향의 흡수전도능력 및 우수한 리웨트 특성을 향상시켰다.
Patent KR-20030066316-A (KR)
IPC: A61K31/14
Filed: 2001-01-26
Abstract: 본 발명은 농도가 약 10중량% 이상인 QAC 및 하나 이상의 용해도 증진제를 포함하는 4급 암모늄 화합물(QAC) 농축 용액에 관한 것이다.  본 QAC 희석 용액을 광범위한 식품 매개성 미생물 감염으로부터 식품에서의 미생물 번식을 예방하기 위해 식품과 접촉시키는데 사용한다.  본 발명에 의해 식품을 희석된 QAC와 0.1초 이상의 적용시간 동안 접촉시키는 방법이 제공된다.  본 방법에 의해 처리할 수 있는 식품은 고기류 및 고기류 제품, 해산물, 야채, 과일, 유가공 제품, 애완동물 사료 및 스낵, 및 처리할 수 있고, 여전히 그의 외견 또는 조직을 유지할 수 있는 임의의 기타 식품이다.  광범위한 식품 매개성 세균 감염을 예방하기 위한 처리 방법중 하나는 QAC 용액을 식품에 0.01초 이상의 적용 시간 동안 분무 및 분사하는 것이다.
Patent KR-20020073207-A (KR)
Title: Method of Making 3,5-Difluoroaniline from 1,3,5-Trichlorobenzene
IPC: C07C211/53
Filed: 2001-02-01
Abstract: A method for manufacturing 3,5-difluoroaniline by fluorinating 1,3,5-trichlorobenzene and then aminating the intermediate fluorinated benzene with aqueous or anhydrous ammonia to achieve the product in yields of greater than 80%.
Patent KR-20020097231-A (KR)
Title: 굽은 열가소성 튜브의 제조방법
Filed: 2000-04-26
Abstract: 성형가능한 관형 프리폼(22)을 제공하고; 프리폼상에 인장을 제공할 수 있는 커플링 부재(24,26)에 프리폼의 단부를 고정하고; 프리폼을 지지하기에 충분한 압력을 가지는 고온 유체를 프리폼의 공동 내부에 충전하고; 프리폼이 미리 결정된 구불구불한 입체 형상이 되도록 유체를 포함하는 프리폼의 외부면에 기계적 압력(46)을 적용하고; 프리폼의 형상이 세트되도록 프리폼안에 고온 유체를 저온 유체로 대체하고; 프리폼에서 저온 유체를 제거하는 것에 의해 굽은 관형 물품(10)을 제조하는 방법.
Patent KR-20020093972-A (KR)
Title: 멀티미디어 콘텐트에 대한 주관적인 정보를 콘텐트와링크하기 위한 주관적인 정보 기록
IPC: G06F12/00
Filed: 2002-01-25
Abstract: 멀티미디어 콘텐트에 대한 주관 정보가 잘 정의된 신택스와 세맨틱들로 표현되도록 하게 하는 데이터를 입력하기 위한 주관 정보 기록에 관한 것이다. 이 기록은 멀티미디어 콘텐트와 멀티미디어 콘텐트의 위치를 식별하는 데이터를 입력하기 위한 필드와, 멀티미디어 콘텐트에 대한 주관적인 정보의 나머지를 식별하는 데이터를 입력하기 위한 필드와, 주관 정보의 언어에 대한 필드와, 콘텐트에 대한 주관 정보에 대한 필드를 포함한다.
Patent KR-20030024705-A (KR)
IPC: B41J2/175
Filed: 2000-06-30
Abstract: 본 발명은, 프린트엔진의 프린트헤드용 잉크공급장치에 관한 것이다. 상기 프린트헤드는, 웨이퍼의 한 면 상에 장착되는 일련의 마이크로-일렉트로메카니컬 시스템(MEMS) 잉크배출장치와, 웨이퍼의 반대측 면으로부터 각 잉크배출장치로 상기 웨이퍼를 관통하여 연장되는 잉크공급통로를 포함한다. 상기 잉크배출장치는 그룹을 지어 배열된다. 따라서, 상기 잉크공급장치는, 웨이퍼의 반대측 면에 장착될 수 있는 블럭부재를 포함한다. 상기 블럭은, 웨이퍼의 반대측 면과 인접한 블럭의 첫 번째 면 내로 뚫려 형성된 다수의 채널을 구비한다. 잉크공급 유입개구는, 각 채널과 연결된다. 이러한 유입개구는, 블럭의 두 번째 면으로 뚫려 있다.
Patent KR-20030011102-A (KR)
IPC: G11B27/32
Filed: 2002-04-18
Abstract: 통상 멀티 세션 레코딩이라고 불리는 기록매체 상에 다중 정보 볼륨을 레코딩하는 방법 및 장치가 개시되어 있다. 이 장치는, 상기 볼륨의 시작 구역의 시작에 있는 제 1 버퍼 구역과, 상기 버퍼 구역 뒤의 상기 시작구역의 나머지 블랭크 영역에 있는 세션 제어블록(SDCB)을 포함하는 인트로 데이터를 레코딩하여 세션을 개방시키는 매핑부(31)를 갖는다. 세션 제어블록은, 상기 세션의 상태와 콘텐츠를 나타낸 볼륨 데이터를 포함한다. 그 세션은, 나머지 블랭크 영역에서 정보 볼륨이 폐쇄되어 있는 것을 나타내는 세션 제어 데이터와, 상기 볼륨의 종료 구역을 구성하는 데이터 구역에 레코딩된 최종 정보 뒤의 클로저 데이터를 레코딩하여 폐쇄된다. 또한, 본 장치는, 상기 시작 구역으로부터 세션 제어블록을 검색하는 검출부(32)를 갖는다.
Patent KR-20040063181-A (KR)
Inventor: HA YEON TAE
IPC: H04W88/04
Filed: 2003-01-06
Abstract: PURPOSE: An unmanned payment method and system using a wired/wireless communication network are provided to reduce congestion of a place for payment. CONSTITUTION: An RF(Radio Frequency) chip(100) provides information on a kind of goods to a mobile terminal(105) of a user. The mobile terminal(105) receives the RF signal provided from goods that the user wants to buy. A wired/wireless integrated relay unit(110) receives the RF signal or goods information corresponding to the RF signal and information on payment means of the user, and transmits them to a settlement server(115). The settlement server(115) processes settlement of purchased goods of the user on the basis of the goods information and the information on the payment means. A sensing gate(120) determines whether the payment on goods has been completed.
Patent KR-20040063434-A (KR)
Inventor: HAN KYUNG JA
IPC: B01L3/14
Filed: 2003-01-07
Abstract: PURPOSE: A tube used for a specimen bank is provided to safely keep a specimen for a long period of time by storing the specimen in a synthetic hose tube with a cold state such that a predetermined amount of the specimen is used for a test. CONSTITUTION: A tube used for a specimen bank includes a specimen storage tube(10) having a protrusion unit(19) formed at an upper portion of the specimen storage tube(10) and a suction needle(13) formed at a lower portion of the specimen storage tube(10). A heating press unit(15) is formed and sealed in such a manner that a body(11) of the specimen storage tube(10) is divided into a plurality of small tubes(14). A perforating line(16) is formed in the heating press unit(15) in order to separate the small tubes(14) from the heating press unit(15).
Patent KR-20040064009-A (KR)
Inventor: PARK KEUN BAE
IPC: C01G49/02
Filed: 2003-01-09
Abstract: PURPOSE: A method for preparing iron oxide or iron hydroxide from an iron sulfate aqueous solution by ozone direct oxidation is provided, to obtain iron oxide having different crystal structure and particle characteristic according to the condition with inhibiting the generation of by-product and the production of bubbles inside iron oxide. CONSTITUTION: The method comprises the steps of preparing an iron sulfate aqueous solution from iron sulfate generated in the picking line of steel making process or the titanium dioxide making process; and injecting ozone directly into the aqueous solution to oxidize the iron sulfate to prepare iron oxide or iron hydroxide. Preferably the reaction temperature is 15-30 deg.C, and the concentration of the iron sulfate aqueous solution is 0.3-0.7 M.
Patent KR-20030025944-A (KR)
Inventor: LEE MYUNG GON
IPC: C09D127/12
Filed: 2003-01-17
Abstract: PURPOSE: A coating agent composition for cooking utensils and a coating method using the composition are provided, to obtain the cooking utensils irradiating the far infrared ray and anions. CONSTITUTION: The coating agent composition comprises 80-90 wt% of a Teflon (polytetrafluoroethylene) resin; and 10-20 wt% of tourmaline powder. The coating method comprises the steps of stirring the composition; spraying the stirred composition to the surface of cooking utensils to coat the surface by a thickness of 10-50 micrometers firstly; drying the coated cooking utensils at a temperature of 200-250 deg.C for 10-20 min; spraying an auxiliary coating agent comprising a Teflon resin to the coated surface; and drying the coated cooking utensils at a temperature of 350-390 deg.C for 15-30 min.
Patent KR-20040069484-A (KR)
Inventor: CHO JI HYEON
Filed: 2003-01-29
Abstract: PURPOSE: A method for managing stock is provided to efficiently operate the stock by deciding an optimal stock level considering an imaginary demand fluctuation factor for a product or material having a demand pattern not following a normalized distribution. CONSTITUTION: An imaginary demand of a time point for the product is estimated(S110). A total expense is drawn out through a stock holding expense for the stock and a sales opportunity loss expense for stock shortage in the time point that the imaginary demand is generated(S120). The optimal stock level for making the total expense minimal is decided(S130). The stock is managed by the decided optimal stock level(S140).