baber/WOPTO huggingface dataset:
Patent KR-20000057780-A (KR)
Inventor: NISHIMURAHIROFUMI
IPC: F02D41/04
Filed: 2000-01-20
Abstract: PURPOSE: A control apparatus is provided to achieve an effective refresh performance for NOx catalyst while suppressing deterioration of fuel efficiency. CONSTITUTION: In an intra-cylinder injection type engine having an injector(22) for directly injecting fuel into a combustion chamber, and a lean NOx catalyst, a control apparatus comprises an air fuel ratio control unit for controlling the air fuel ratio ranging from a level higher than the stoichiometric air fuel ratio to a level lower than the stoichiometric ratio, and a control unit(72) for performing catalyst refreshment. The control unit controls the injector to perform a pre-fuel injection during an air suction stroke and a post-fuel injection during a compression stroke, when the air fuel ratio is changed from a level higher than the stoichiometric air fuel ratio to a level lower than the stoichiometric ratio.
Patent KR-20010081421-A (KR)
Title: Uv protection composition containing zno-coated tio2 composite particles
Inventor: HAM YEONG MIN
IPC: A61K8/19
Filed: 2000-02-14
Abstract: PURPOSE: An inorganic-based composition for shielding ultraviolet rays containing ZnO-coated TiO2 composite fine particles as an active shielding component is provided, which can shield ultraviolet rays A(wavelength; 320 to 400nm) and ultraviolet rays B(wavelength; 290 to 320nm) simultaneously. CONSTITUTION: The composition for shielding ultraviolet rays contains ZnO-coated TiO2 composite fine particles having a mean particle diameter of 180 to 550nm and a carrier, wherein the composite fine particles are obtained by reacting ZnO sol and TiO2 seed having a mean particle diameter of 50 to 500nm at 50 to 70deg.C for 1 to 3 hr and aging at ordinary temperature for 20 to 30 min.
Patent KR-20000076669-A (KR)
Title: 전자 거리 측정 장치 및 이를 이용한 전자 보안 시스템
IPC: G07C9/00
Filed: 2000-02-16
Abstract: 본 발명은 전자 거리 측정 장치와, 전자 거리 측정 장치를 내장한 전자 보안 시스템에 관한 것이다. 
     본 발명은 두 물체 사이의 거리를 측정하기 위한 전자 장치에 관한 것이고, 상기 전자 장치는 호출 신호 발생 및 송신용 호출 신호 발생 수단, 응답 신호 수신 수단, 그리고 평가 유닛을 한 물체에 갖추고, 호출 신호 수신 수단과 응답 신호 발생 수단을 다른 한 물체에 갖춘다. 또한 본 발명은 전자 거리 측정 장치를 내장한 전자 보안 시스템에 관한 것이고, 그 예를 들자면 무선 작동 형태의 차량 잠금 시스템이 있다. 
     발명에 따라, 호출 신호와 응답 신호 사이의 거리 표시 위상차를 측정하기 위해 평가 유닛이 설정된다. 
     본 발명은 이동 방지 장치나 전자 잠금 시스템에 대한 식별 인증 요소와 차량 사이의 거리를 측정하기 위해 차량에서 사용가능하다.
Patent KR-20010081768-A (KR)
Title: Method of operating tray of disk player
Inventor: CHO PIL JE
IPC: G11B17/03
Filed: 2000-02-18
Abstract: PURPOSE: A controlling method for a tray of a disk player is provided to prevent a disk from being abnormally mounted on the tray in inserting and withdrawing the tray. CONSTITUTION: By inputting of a tray withdrawing signal, a control unit drives a loading motor. In case of a tray reached at a tray withdrawing reference location, the loading motor is driven. Then, the tray is reached at a withdrawing completion location. In case of a high signal from a tray interference switch, the control unit decides an inlet mode for counting time. In case of the counted time reached at the established delay time, the loading motor is driven to an opposite direction from the withdrawing mode.
Patent KR-20000030436-A (KR)
Inventor: LEE KYUNG HEE
IPC: C04B7/00
Filed: 2000-02-29
Abstract: PURPOSE: Provided is a process of calcium sulfur aluminate such as expansive clinker used as a raw material of expansion agent for preventing a crack by dry-shrinkage of cement or concrete, quick setting cement, high early strength cement, and accelerating agent. CONSTITUTION: The process comprises the following steps of: mixing about 50-70 wt.% of alunite and about 30-50 wt.% of limestone, and about 1-2% of grease acid alcohol of good quality; raising the temperature at 1200°C with 5°C to the minute of speed in order to maintain calcium sulfur aluminate crystal; and sintering for about 30minutes by the oxidation and th deoxidization. The calcium sulfur aluminate is produced by using alunite and limestone, grease acid alcohol which is reduced by emission of the sulfurous acid gas to the analysis of alunite.
Patent KR-20000030518-A (KR)
Inventor: LEE BO DEUK
IPC: A23L33/00
Filed: 2000-03-04
Abstract: PURPOSE: A lifex product is provided, which enhances immune function, prevents aging with promoting secretion of hormone and strengthens ones body, eyesight and memory. CONSTITUTION: A lifex product as perfect food is made by adding 18 kinds of silk amino acids peptides including essential amino acids to 20 kinds of main stuffs enhancing immune function like colostrum milk, evergreen palm berry extract powder, wood pulp extract powder, coral calcium powder, vitamins, etc. through the following steps of inspecting raw materials, mixing the stuffs equally, forming and packaging.
Patent KR-20010087955-A (KR)
Title: Process for simultaneously preparing anhydrous aluminum chloride and iron powder
Inventor: KIM SU TAE
IPC: C01G49/02
Filed: 2000-03-09
Abstract: PURPOSE: A simultaneous manufacturing method of anhydrous aluminum chloride and iron powder is provided, which uses low temperature aluminum-zinc alloy melt solution so that the fluidity is high even at low temperature and agitation is easy. The aluminum chloride does not carry iron chloride, thereby yield iron powder and aluminum chloride in high purity. The process can treat iron chloride discharged from the existing titanium plant or electronic part plant to recover aluminum chloride and iron powder of high price. CONSTITUTION: The method is as follows: (i) react by adding iron chloride powder to alloy melt solution of aluminum-zinc at a ratio of 2:8-3:7 of aluminum-zing, the melting point of alloy being 275-300 deg.C; and (ii) collect the aluminum chloride from the gas phase of the reactor through a condenser and iron powder through a revolving screen of ferromagnetic material at the bottom of the reactor.
Patent KR-20010087862-A (KR)
Title: The functional bandage for eye strain recover and it's manufacturing process.
Inventor: BYUN DONG JU
IPC: A61F9/00
Filed: 2000-03-07
Abstract: PURPOSE: A process for preparing the titled functional eye bandage by mixing ultraviolet rays irradiating material, a herb medicine and aqueous polymer solution and coating on fabric and attaching the fabric to an aluminium thin plate is provided. Whereby, the eye bandage can relieve eye fatigue and eye strain within a short time without any adverse reaction. CONSTITUTION: A mixture of 20-40g Cassiae semen, 40-80g Panax ginseng and 20-40g Glycyrrhizae radix is concentrated, mixed with 20L binder such as aqueous urethane and 20L water, and agitated with 300-500g ultraviolet rays irradiating material such as elvan to produce a functional coating liquid(4). A coated fabric(18) is dipped in the functional coating liquid and attached to an aluminium thin plate to produce the titled functional eye bandage. The aluminium thin plate plays a role for accelerating the irradiation of ultraviolet rays by body temperature brought into contact into the eye bandage.
Patent KR-20010089100-A (KR)
Title: Manufacturing method of squid food which contains natural disposition of seavegetables
Inventor: KIM YU SEONG
IPC: A23L17/50
Filed: 2000-03-21
Abstract: PURPOSE: A method for preparing a processed squid food containing useful ingredients of seaweeds is provided to improve palatability and functionality of the processed squid food. CONSTITUTION: The method includes the following steps of: (i) seasoning cleared squid meat of which arms, intestines and the body skin are removed with sugar, salt and L-Monosodium glutamate; (ii) soaking the seasoned squid meat in a seasoning solution for about 10-12hr to be aged and destroying the aged squid dried and humidified by the meat texture by roasting the squid with electric heat of 100deg.C; (iii) expanding the surface area of the meat by pressing out and stretching the squid in the direction of the meat texture two times; (iv) aging the squid meat applied with solidifying preventive powder at 50deg.C for 3-4days and applying powdered dried seaweeds of 400mesh to the squid before aging at 50deg.C for 10hr; and then (v) dehydrating and pressurizing the resulting seasoned squid along the texture.
Patent KR-20010093399-A (KR)
Inventor: YUN YOUNG JUNG
IPC: F24F5/00
Filed: 2000-03-28
Abstract: PURPOSE: A combined air cleaner and humidity controller is provided to achieve a comfortable indoor area through indoor air pollution abatement by using interior landscape plants, while maintaining indoor humidity at an optimum state. CONSTITUTION: A combined air cleaner and humidity controller comprises a main body(1) functioning as a base; an air suction member(2) disposed onto the main body, and which sucks outdoor air; an air distribution member disposed onto the main body, and which distributes in a uniform manner the air sucked by the air suction member; a water tank installed to the air suction member, and which feeds water into the main body; a valve mounted to the water tank, and which controls water supply; a water overflow preventing barrier fixed to the main body to be adjacent to the water tank, and which controls water flow; and a carrier(13) filling the main body so as to adsorb and remove toxic substance and dust from the polluted air, and which has plants(14) planted in the carrier.
Patent KR-20010096899-A (KR)
Inventor: EUN SUNG GUEN
IPC: G02B3/14
Filed: 2000-04-18
Abstract: 본 발명은 볼록렌즈와 오목렌즈와 같은 렌즈에 관한 것으로 일반적으로 유리를 연마하거나 사출제작으로 제작되는 것으로 이와같은 방법은 한번 제작을 하면 렌즈의 형태를 변형할 수가 없으며 이로 인하여 렌즈의 초점을 변형할 수가 없었다. 
     본 발명은 렌즈의 형태를 변형하여 초점을 용이하게 조절할 수 있도록 하므로 제조원가를 줄임은 물론 제품의 작동 또한 용이하도록 제공하는데 있다. 
     이를 실현하기 위하여 본 발명은 플랙시블한 피막부을 외주면에 형성하고 내부에는 액체를 채워이루어진 것으로 액체의 유동성을 살려 렌즈가 변형되도록 한 것이다.
Patent KR-20000063181-A (KR)
Inventor: SOI JUNG WAN
IPC: G06T17/00
Filed: 2000-04-21
Abstract: PURPOSE: A method for implementing an alive 3 dimensional image is provided to offer easily 3 dimensional images over the internet, and allow an internet user to appreciate the images by using complementary color glasses. CONSTITUTION: A method for implementing an alive 3 dimensional image comprises steps of taking an image of an object by using a 2D camera or camcoder, a 3D camera or camcoder, a digital camera having fisheye lens, an analog image scanner, and image storage peripherals(100), checking if the taken image is input to a central control computer of a server(102), inputting the taken image to the central control computer after digitalizing the image via a scanner or a converter(104), driving a software having a 3 dimensional image and a virtual panorama implementation to convert the image into the alive 3 dimensional image(106), generating the alive 3 dimensional image(108), outputting the alive 3 dimensional image via a CD-ROM, a software or a sheet(110), and offering the alive 3 dimensional image over an image providing web site(112).
Patent KR-20000049766-A (KR)
Inventor: LEE SEUNG CHEOL
IPC: E02B8/02
Filed: 2000-04-28
Abstract: PURPOSE: A rake of a filth collecting device for a drainage way is provided to collect filth in a screen efficiently while rising smoothly even if the rake is deformed. CONSTITUTION: A rake body(4) is pushed to the left and the right according to the curved position of a screen rib and returned to the original position. A rake rib(5) is hung on the curved part with its slope part. The slope part is pushed rearward and returned forward repeatedly. A rake rises to the upper part of the screen and lifts the filth hung on the screen from underwater. Herein, the filth is placed on the upper part of the rake body with much water. Many drain holes(15) formed on the entire surface of the rake body minimizes flowing of the filth with the water while the water is leaked via the drain holes.
Patent KR-20010105498-A (KR)
Title: Method for nearing construction and construction system of build type breast wall
Inventor: OH JUNG YOUNG
IPC: E02D29/02
Filed: 2000-05-10
Abstract: The present invention relates to a method of enhancing deposition to benefit agent from bars, which method comprises separately preparing an adjuvant composition comprising benefit agent and deposition polymer (e.g., cationic polymer); and base bar composition comprising a surfactant system. By combining adjuvant compositions separetely from the base bar composition, it is possible to create a final bar having enhanced deposition of benefit agent without compromising processing or consumer attributes (e.g., foaming).
Patent KR-20010103998-A (KR)
Inventor: KIM YEONG ROK
IPC: B60L3/00
Filed: 2000-05-12
Abstract: 배터리 전압 충전용 도선의 단락 혹은 피복이 벗겨질 때 고장 전류 발생을 배터리 접속 단자 스위치에 전류가 전송되면 변압기에서 자동으로 과전압을 확인하고 퓨즈를 자동으로 차단시키면서 운전자 계기판에 이상 유무를 나타내는 하이브리드 전기 자동차의 누전 차단장치는 ; 
     하이브리드 전기 자동차에서 배터리 컨넥터로 직렬 연결되는 제1,2,3 배터리와, 
     상기 제1,2,3 배터리 사이에 연결되어 고장 전류를 감지하는 고장 전류 감지 단자와, 
     상기 고장 전류 감지 단자의 작동으로 동작하는 배터리 접속 단자 스위치와, 
     상기 배터리 접속 단자 스위치의 온을 감지하면서 제1,2,3배터리의 충전량을 감지하는 전자제어장치와, 
     상기 전자제어장치가 배터리 접속 단자 스위치의 온을 감지함에 따라 전기적인 신호로 작동하는 변압기 퓨즈 자동 차단장치와, 
     상기 변압기 퓨즈 자동 차단장치의 작동과 동시에 전자제어장치의 전기적인 신호로 배터리 이상 유무를 확인하게 작동하는 계기판 뷰져를 포함하여 이루어지는  하이브리드 전기 자동차의 누전 차단장치를 제공하는데 있다.
Patent KR-20010104892-A (KR)
Inventor: CHO SEUNG GUK
Filed: 2000-05-16
Abstract: 본 발명은 귀걸이에 관한 것으로서 보다 상세하게는 귀걸이를 처음 착용하기 위하여 귀에 천공을 행할 때 사용하는 귀 뚫는 귀걸이를 형상기억 합금 소재로 이루어 무독성 무자극성을 갖으며 착용시에는 견고한 체결력을 유지하며, 분리시에는 회전시켜 이탈케하여 손쉽게 탈거가 가능하도록 이루어진 형상 기억 합금을 이용한 귀 뚫는 귀걸이의 제조 방법 및 그 귀 뚫는 귀걸이에 관한 것이다. 
     본 발명은 인체에 유해성이 없는 금속재를 선정하여 무독성의 귀뚫는 귀걸이를 가능하게하며, 귀뚫는 귀걸이의 장식구 부분을 다양한 형상으로 구성할 수 있도록 분리 성형하며, 장식구 만을 분리하여 도금하므로 도금 막의 독성에 의한 부작용을 원천적으로 배제하면서도 장식적인 효과를 얻을 수 있도록 이루고, 체결구와 견고한 결합력을 유지하면서도 체결구를 빼낼 때에는 손쉽게 이탈이 가능한 구조를 부가하여 손톱이 부러지는 등의 손상을 방지 할 수 있도록된 형상 기억 합금을 이용한 귀 뚫는 귀걸이의 제조 방법 및 그 귀뚫는 귀걸이를 제공하고자 한다. 
     본 발명은 선재의 형상 기억 합금 소재에 일정 형상을 기억시키고 천공침의 선단을 뾰족하게 연마하는 단계, 체결구와 결합을 위한 체결홈을 프레스 가공하는 단계, 필요한 천공침의 길이로 절단해내는 컷팅 단계, 연마 공정으로 천공침을 분리 성형하는 것과, 
     장식구를 형성하여 천공침 결합 홈을 가공하는 단계, 연마 후 도금 막을 피착 성형하는 단계, 상기 천공침과 장식구를 강제 압입시켜 결합하여 완성된 귀뚫는귀걸이를 제조하는 것을 특징으로 한다. 
     상기 천공침에 마련되는 체결구 결합을 위한 체결홈은 단면이 원형인 침의 양단에 180도 대향되도록 체결홈을 형성하여 이루어 체결구와 이탈 시킬 때 90도 회전시키면 탄성고리가 천공침의 원주면을 타고 벌어지면서 홈에서 이탈되어 쉽게 분리할 수 있도록 이루어진다.
Patent KR-20010106592-A (KR)
Inventor: JUNG DAL HO
IPC: H02P6/10
Filed: 2000-05-22
Abstract: 본 발명은 4개 스위칭 소자를 이용한 3상 모터 제어기의 토오크 리플 저감장치 및 방법에 관한 것으로, 특히 입력되는 직류전압을 충,방전함으로써 생성되는 전압을 4개 스위칭 소자를 사용하여 3상 모터를 회전시키는 인버터로 공급하는 상,하단 직류 링크 캐패시터와, 상기 3상 모터의 임의의 한 상이 직류 링크 중성점 단자에 연결된 곳의 전류를 검출하는 전류 검출기와, 상기에서 검출한 전류를 적분하여 상기 상,하단 직류 링크 캐패시터의 전압차를 간접적으로 구하는 적분기와, 상기에서 구한 전압차, 모터의 실제속도와 지령속도간의 속도차 및 회전자 위치를 이용하여 상기 인버터의 A,B상 스위치 소자를 스위칭하기 위한 보상성분을 계산하고, 이 보상성분을 포함한 스위칭 시간을 제공하여 모터의 속도를 제어하도록 하는 전압지령 발생기를 구성하여, 상,하단 직류 링크단의 전압차를 간접적으로 검출하고, 그 검출한 전압차에 따라 스위칭 시간을 조정하여 발생 토오크의 리플을 저감시키도록 한 것이다.
Patent KR-20010029782-A (KR)
Title: writing implement and method of separating pen core holder
Inventor: IWATA MITSUHARU
IPC: B43K/
Filed: 2000-06-03
Abstract: PURPOSE: To release a pen core holder from a body and to facilitate replacing of the holder and supplementing of an ink by providing an engaging portion at the holder, providing a protrusion at a cap, engaging a protrusion with the portion, and releasing the holder from the body. CONSTITUTION: In order to supplement an ink or to replace the overall pen core holder 1, a protrusion 7 is inserted into a groove formed of an engaging portion 2 and a locking portion 3 to be engaged, and a cap 6 and a body 5 are pulled in opposite directions. As a result, since the holder 1 is released from the body 5, the ink is supplemented from an opening of the body 5. In this case, the protrusion 7 is engaged with a groove formed of the portions 2 and 3, and the engaging state is held even after the holder 1 is removed from the body 5, a placing position of the holder 1 is not troubled while supplementing the ink, and no hand is contaminated with the ink. Thereafter, when the cap 6 is held and the holder 1 is inserted into the body 5, the writing instrument again becomes writable.
Patent KR-20010109968-A (KR)
Inventor: KIM SEONG YEON
Filed: 2000-06-05
Abstract: 본 발명은 연속주조 조업시 레이들(1)에서 턴디쉬(4)로 용강을 이송하는 과정에서 레이들 콜렉터 노즐(2)과 레이들 쉬라우드 노즐(3)의 틈새로 공기가 유입되어 용강이 산화되는 것을 방지함으로써, 용강 중에 비금속 개재물이 추가적으로 생성되는 것을 억제시켜, 턴디쉬 내의 용강이 주형으로 이동하는 과정에서 용강중의 비금속 개재물에 의해 상부 노즐(6)과 침지노즐이 막히는 현상이 발생되지 않도록 레이들 콜렉터 노즐과 레이들 쉬라우드 노즐의 연결부위에 불활성가스를 공급하여 연결부위 주위를 불활성분위기로 유지하기 위한 용강산화 방지캡에 관한 것으로, 불활성가스가 소통가능하도록 레이들 쉬라우드 노즐 상단부 외측면과의 사이에 소통경로가 형성되도록 레이들 쉬라우드 노즐 상단부에 장착되는 소정형상의 장착부와, 장착부로부터 상방으로 연장하고 레이들 콜렉터 노즐의 외측면과의 사이에 불활성가스의 배출통로가 형성되는 배출부와, 장착부의 일측면에 형성되는 불활성가스의 유입부로 이루어진 것을 특징으로 한다.
Patent KR-20000058514-A (KR)
Inventor: HWANG JAE KWAN
IPC: A61K31/045
Filed: 2000-06-08
Abstract: PURPOSE: A method for inhibiting bio-synthesis of cholesterol using xanthorrhizol is provided for use in treating cardiovascular diseases such as arteriosclerosis, hear disease. CONSTITUTION: The Acyl-CoA: Cholesterol Acyltransferase(ACAT) catalyzes the esterification of cholesterol inducing arteriosclerosis, heart attack, and stroke in vivo. The xanthorrhizol to be isolated from Curcuma xanthorrhiza has the structure of formula I and inhibits the activity of Acyl-CoA: Cholesterol Acyltransferase(ACAT). The inhibition activity of ACAT is measured by inhibition percentage of xanthorrhizol or inhibition concentration(50%) IC50, that the concentration inhibits the activity of ACAT by 50% under given conditions, in the presence of 20 nM of ACAT, and is confirmed by animal test, in which after inducing high accumulation of cholesterol, xanthorrhizol is administrated.
Patent KR-20010112724-A (KR)
Title: Advertising method using a transformable download window
Inventor: KIM HO HYUN
Filed: 2000-06-12
Abstract: Multicrystalline melamine powder having the following properties : d90: 50-150 mum; d50 98.5 wt.%; melam: < 1 wt.%. Multicrystalline melamine powder obtainable via a high-pressure process in which solid melamine is obtained by the melamine melt coming from the reactor being transferred to a vessel where the melamine melt is cooled with an evaporating cooling medium, characterized in that the melamine melt which comes from the melamine reactor and has a temperature between the melting point of melamine and 450 °C is sprayed via spraying means and cooled with an evaporating cooling medium within a vessel in an ammonia environment at an ammonia pressure of 4.5-25 MPa, the melamine melt being converted into melamine powder having a temperature between 200 °C and the solidification point of melamine, the melamine powder then being cooled to a temperature below 50 °C, the powder being agitated mechanically over at least part of the cooling range and being cooled directly or indirectly, and the ammonia pressure being released at a temperature below 270 °C.
Patent KR-20010111850-A (KR)
Inventor: HWANG DEOK SU
Filed: 2000-06-13
Abstract: 본 발명은 연구용·사진예술용 등으로 사용되는 흑백필름을 국산화 하는데 목적을 두고 있으며, 지지체인 필름 또한 국내제품으로 사용하여 수입대체효과를 거둘 수 있다. 본 발명의 감광재료는 8%의 잴라틴용액에 브롬화이온 화합물과 요오드이온 화합물을 질산은 용액과 섞어 교반시킨 후, Sol의 상태를 Gel화시켜 수세후 화학숙성을 시킨다. 화학숙성을 마친 후 각종 첨가제를 넣고 교반후 필름지지체에 도포하고 건조시킨다.
Patent KR-20000058695-A (KR)
Inventor: AN JUNG O
IPC: A23L11/00
Filed: 2000-06-24
Abstract: PURPOSE: A method of making bean curd containing gold or silver is provided, which can preserve bean curd for a quite long time by preventing the bean curd from decaying, improves immunity of human body with a sterilizing function. CONSTITUTION: A gold or silver bean curd is produced by cutting beans into 2-3 pieces, soaking the beans in water with 3% of 3PPM gold solution and/or 5% of 10PPM silver solution, treating the soaked beans with heat at 98°C, and congealing in brine; or by congealing a bean solution in brine, processing natural dehydration, and soaking the congealed bean curd in the aqueous solution of gold or silver to adsorb the ingredients of gold or silver.
Patent KR-20020001368-A (KR)
Title: The apparatus for verifying position of subject
Inventor: LEE GEUN
IPC: G01S7/295
Filed: 2000-06-28
Abstract: PURPOSE: An apparatus for recognizing a location of an object is provided to detect correctly locations of various moving objects by outputting optical control signals of a time division method toward the moving objects and analyzing optical information emitted from the moving objects. CONSTITUTION: An optical control signal generation portion(10) is used for generating optical signals by using a time division method. A camera portion(20) is used for receiving light emitted from a multitude of object(object 1 to object n) and outputting video signals. An object recognition portion(30) is used for analyzing optical information outputted from the camera portion(20) and recognizing locations of the objects by using the analyzed information. An external device connection portion(40) is used for reporting the numbers and the locations of the objects to an external device.
Patent KR-20020002572-A (KR)
Title: Method for forming isolation in semiconducctor device
Inventor: JUN SEUNG JUN
IPC: H01L21/76
Filed: 2000-06-30
Abstract: PURPOSE: A method for forming an isolation layer of a semiconductor device is provided to obtain a superior profile having a gentle slope and to prevent a moat phenomenon of the isolation layer in a subsequent cleaning process, by forming pad silicon between a pad oxide layer and a pad nitride layer to fabricate a bird's beak in oxidizing the sidewall of a trench. CONSTITUTION: An isolation mask composed of the pad oxide layer, a pad silicon layer and the pad nitride layer is formed on a semiconductor substrate(21). The semiconductor substrate is selectively etched to form the trench by using the isolation mask. An oxide layer is formed on the sidewall of the trench by performing a sidewall oxide process while an oxide layer of a bird's beak type is formed in a lateral direction of the pad silicon layer. An insulation layer having an excellent gap fill characteristic is formed on the resultant structure. A chemical mechanical polishing process is performed regarding the insulation layer until the pad nitride layer is exposed so that an isolation layer(27a) filled in the trench is formed.
Patent KR-20020009123-A (KR)
Title: Extract of Areca Catechu L. controlable multi-drug resistance of cancer and process for preparation thereof
Inventor: CHO GYEONG HUI
IPC: A61P35/00
Filed: 2000-07-24
Abstract: PURPOSE: A process of preparing Areca catechu L. extracts by extracting Areca catechu L. with alcohol is provided. Whereby, the extract has an excellent effect on modulating multi-drug resistance of cancer cells, exhibiting enhanced cytotoxicity toward tumor cells and reducing an amount of administration by use with conventional anticancer agents. CONSTITUTION: An extract extracted from Areca catechu L. with 80% methanol is subjected to distillation under reduced pressure to remove methanol and then the methanol-removed water layer is subjected to silica gel column chromatography. Also Areca catechu L. is extracted with 100% ethanol, subjected to distillation under reduced pressure and then silica gel column chromatography.