baber/WOPTO huggingface dataset:
Patent KR-20040084000-A (KR)
Inventor: ROH JEONG JIN
IPC: H03F3/45
Filed: 2003-03-26
Abstract: PURPOSE: A high slew rate error amplifier circuit is provided to increase the amount of current and reduce the current consumption by adding two comparators and plural MOS transistors to a basic structure of a conventional error amplifier. CONSTITUTION: A high slew rate error amplifier circuit includes an amplifier circuit and an additional circuit. The amplifier circuit is used for obtaining an output voltage by multiplying a gain by a voltage difference between a positive input voltage and a negative input voltage. The additional circuit includes a comparator and a switch in order to control a current repeater. The comparator has an internal offset voltage. The switch is turned on/off by the comparator.
Patent KR-20040084243-A (KR)
Inventor: HAN SEUNG MOO
Filed: 2003-03-27
Abstract: PURPOSE: A virtual operation simulation system for an artificial coxa is provided to offer a virtual artificial coxa operation simulator for offering diverse forms of operations by generating the 3-D(Dimensional) medical images in order to make a surgeon and a medical student experience the virtual artificial coxa operation. CONSTITUTION: A computer system(100) performs a standardization work of the 2-D medical image such as the CT(Computerized Tomography) and the MRI(Magnetic Resonance Imaging), converts the 2-D medical image into the 3-D planar medical image, and displays it. An LSG(LCD Shutter Glasses) device(200) converts the 3-D planar medical image output from the computer system into the 3-D medical image and displays it. A data glove system(300) is connected to the computer system, outputs operation/location information simulated based on the 3-D planar medical image, and transfers a shape of a virtual figure of the 3-D planar medical image to the user.
Patent KR-20030079745-A (KR)
Title: 미세회로배선의 형성방법 및 장치
IPC: H01L21/768
Filed: 2003-04-01
Abstract: 본 발명에서는, 구리도금에 의하여 구리원자의 이동이 지연 또는 억제되어 마이그레이션이 방지되는 구리배선을 형성할 수 있는 미세회로배선을 형성하는 방법 및 장치가 제공된다. 상기 미세회로배선형성방법은 배리어층 및 선택적으로 시드층에 의하여 덮힌 미세회로패턴을 갖는 전자회로용 기판을 제공하는 단계, 구리합금도금에 의하여 상기 기판의 표면에 제1도금막을 형성하는 단계 및 구리도금에 의하여 상기 제1도금막의 표면에 제2도금막을 형성하는 단계를 포함한다.
Patent KR-20040085983-A (KR)
Inventor: KIM SIN CHEOL
IPC: H01L21/02
Filed: 2003-04-02
Abstract: PURPOSE: A mask align chamber is provided to improve the align resolution and reduce the manufacturing cost by reducing an aligning error between a substrate and a mask. CONSTITUTION: A chamber(110) includes an entrance into which a substrate(1) and a mask(2) are loaded. A base plate(120) is used for providing a reference side of the substrate. A plate support part(130) is used for isolating the base plate from the vibration of the chamber. A substrate holder(140) is used for supporting the substrate. A holder support part(150) is used for isolating the substrate holder from the vibration of the chamber. A holder transfer unit(160) moves the holder support part to a Z-axis. A mask is adhered to a mask stage(170). A stage support part(180) is used for isolating the mask stage from the vibration of the chamber. A stage transfer unit(190) rotates the stage support part and moves the stage support part to an X-axis, a Y-axis, and the Z-axis.
Patent KR-20030051456-A (KR)
Inventor: LEE BONG SOO
IPC: F24H1/00
Filed: 2003-04-04
Abstract: PURPOSE: A fuel saving hot water supply boiler of a low pressure-direct heating type is provided to reduce the manufacturing cost by simplifying the structure, to improve heat efficiency, and to save fuel. CONSTITUTION: In a fuel saving hot water supply boiler of a low pressure-direct heating type, five combustion chambers(1¯5) are installed to the lower part of the inside of an expansion tank(15). Direct heat exchange is performed by the five combustion chambers without a supplementary water pipe. A self-heat exchanger(11) for the boiler is installed to a combustion gas outlet(10) connected with the fifth combustion chamber and direct water is circulated, applying the exhaust heat exhausted to the atmosphere. Thus, warm water of average 35 degrees centigrade is made and is sent to a direct water inlet pipe of a high temperature tank. Accordingly, the time for operating the boiler is reduced and fuel consumption rate is reduced.
Patent KR-20040087347-A (KR)
Inventor: PARK JEOONG SUNG
IPC: H04B1/40
Filed: 2003-04-07
Abstract: PURPOSE: A car FM transmitter supporting a sub woofer and handsfree is provided to implement a 4.1 channel(or 5 channel) at a low cost and allow a user to enjoy music of a mobile phone through a car speaker. CONSTITUTION: The first coming stereo input signal is divided and transferred to (an external stereo input connector(1) or a handsfree connector(2)) an FM transmission IC(Integrated Circuit)(5) and a sub woofer filter(4) (or a center filter(11)). The signal coming into the FM transmission IC(5) is transferred to a car radio after being filtered and modulated. Selection of the sub woofer filter(4) or the center filter(11) is determined through switch selection. The signal transmitted to the sub woofer filter(4) is low frequency-amplified and is transferred to a driver through a speaker(8) after going through an amplifier(7). When a handsfree cable is connected to a handsfree jack(2), a voice signal outputted from a mobile phone is transferred to the driver. When the driver speaks to a microphone connected to a microphone jack, a voice signal of the driver is connected to a handsfree cable through a low frequency filter and then transferred to the other party.
Patent KR-20030082436-A (KR)
Title: 절단유리섬유 매트 및 그 제조방법
IPC: D04H1/58
Filed: 2003-04-15
Abstract: 유리섬유 매트는 유리 필라멘트의 제1층이 이동벨트상에 위치되어 제조된다.  접착성 웹 결합제는 유리 필라멘트의 제1층상에 위치되고, 유리 필라멘트의 제2층은 접착성 웹 결합제상에 위치된다.  유리 필라멘트와 접착성 웹 결합제는 제2이동벨트에 의해 개재되고 열 및 압력이 가해진다.  유리 필라멘트의 두 층은 함께 유리매트로 결합된 다음에, 이 유리매트가 냉각되고 두루마리 형태로 말린다.
Patent KR-20040094519-A (KR)
Inventor: JI JONG KUOO
IPC: A21B3/13
Filed: 2003-05-03
Abstract: PURPOSE: Provided is a silicone baking pan for baking bread or cookie which is nontoxic to the human body and is easily stored and moved. A various shape of silicone baking pans can be produced rapidly and easily. CONSTITUTION: The silicone baking pan comprises 65-70 wt% of polymethyl siloxane, 27-32 wt% of silicon dioxide and 5-7 wt% of other materials.
Patent KR-20040095506-A (KR)
Inventor: KIM MOO GON
IPC: B32B3/20
Filed: 2003-05-09
Abstract: PURPOSE: An apparatus of manufacturing constructional adiabatic boards is provided to prevent deformation of respective recesses formed at a polystyrene plate when the polystyrene plate is supplied to a cooling roller. CONSTITUTION: The manufacturing apparatus of constructional adiabatic boards comprises: a pair of lower belt rollers(27) rotatably installed to a body so as to be located immediately after a first heater plate(13); a pair of upper belt rollers(28) rotatably installed to the body to vertically face the respective lower rollers; upper and lower belts(30,29) wound on a first rotary roller(12) to surround the upper and lower belt rollers so as to provide a polystyrene plate with a feeding force so as to move away from the first rotary roller; a plurality of upper and lower press pieces(32,31) vertically and horizontally formed at outer surfaces of the upper and lower belts so as to press the polystyrene plate downward and upward in order to form upper and lower recesses(1b,1a); a motor to provide one of the upper and lower belt rollers; a driving gear rotating along with the belt roller; and a driven gear to rotate the other belt roller in a direction opposite to the belt roller.
Patent KR-20030088361-A (KR)
Title: 반도체 집적 회로의 설계 장치 및 설계 방법
IPC: G06F17/50
Filed: 2003-05-13
Abstract: 집적 회로에서의 배선 설계를 행하는 장치는, 칩 위의 논리 셀 배치 정보를 취득하는 논리 셀 배치 정보 취득 유닛과, 상기 취득한 논리 셀 배치 정보에 기초하여 논리 셀 단자 간 배선을 예상하고, 이 예상한 각 배선을 배선층 영역마다 그룹 분류하는 배선 그룹화 유닛과, 최하위 배선층 영역 이외의 배선층 영역에서 배선되는 논리 셀 단자를 배선해야 할 배선층 영역까지 풀링하기 위한 비아 배선의 설정을 행하는 비아 설정 유닛과, 상기 배선 그룹마다의 배선 정보를 추출하는 배선 정보 추출 유닛과, 추출한 정보를 바탕으로 각 배선층 영역마다 논리 셀 단자 간의 배선을 실행하는 배선 실행 유닛을 포함한다.  또한, 집적 회로에서의 배선 설계를 행하는 방법은, 칩 위의 논리 셀 배치 정보를 취득하는 단계와, 상기 취득한 논리 셀 배치 정보에 기초하여 논리 셀 단자 간 배선을 예상하고, 이 예상한 각 배선을 배선층 영역마다 그룹 분류하는 배선 그룹화 단계와, 최하위 배선층 영역 이외의 배선층 영역에서 배선되는 논리 셀 단자를 배선해야 할 배선층 영역까지 풀링하는 비아 배선을 생성하는 단계와, 상기 그룹마다 배선 정보를 추출하는 단계와, 추출한 정보를 바탕으로 각 배선층 영역마다 논리 셀 단자 간의 배선을 실행하는 단계를 포함한다.
Patent KR-20040031564-A (KR)
Inventor: SUMITA KATSUHIKO
IPC: C09J7/40
Filed: 2003-05-16
Abstract: PURPOSE: A surface protective film for protecting an adhesive silicone rubber composition layer and its preparation method are provided, to obtain a surface protective film which can be peeled off easily from an adhesive silicone rubber composition layer, and is free from a plasticizer deteriorating the adhesion of an adhesive silicone rubber composition layer to a semiconductor chip and a silicon-based adhesion promoter deteriorating the thickness uniformity or surface smoothness of an adhesive silicone rubber composition layer. CONSTITUTION: The surface protective film comprises a base film(10) whose at least one surface is coated with a cellulose-based resin layer(11) having an SP (solubility parameter) value of 21.0-29.0 (MPa)¬1/2 measured by Fedors method. Preferably the base film is a polyethylene terephthalate film and the base film and the cellulose-based resin layer are adhered together with an adhesive strength of 200 N/m or more. Preferably the cellulose-based resin layer is formed by a cellulose acetate having an acetylation degree of 47-63 and contains a residual organic solvent in an amount of 10 microgram/m2.
Patent KR-20040100420-A (KR)
Inventor: CHOO JAE IN
IPC: H04N9/29
Filed: 2003-05-23
Abstract: PURPOSE: A degaussing coil holder in a CRT(Cathode Ray Tube) is provided to be formed with a cabinet by one body to fix a degaussing coil. CONSTITUTION: A cabinet(10) is installed in the outside of a CRT, and is combined up and down or back and forth. Two supporting bars(52) are oppositely formed each other. The supporting bars are formed with the cabinet by one body. The supporting bars protruded to a rear side of the cabinet have semicircular fixed grooves(51). At least one or more supporting bars are formed at an upper side and a lower side of the cabinet.
Patent KR-20040102260-A (KR)
Inventor: LIM TAE YEONG
IPC: H01F27/32
Filed: 2003-05-27
Abstract: PURPOSE: A molded type isolating transformer and a manufacturing method thereof are provided to allow for a stable control without causing flickering of lighting device, by supplying secondary power of stable voltage. CONSTITUTION: A method for manufacturing a molded type isolating transformer comprises a step of producing a bobbin assembly by inserting a circular core between a pair of upper and lower bobbin cases(41); a step of winding a primary wire(56) and a secondary wire on the bobbin case of the bobbin assembly; a step of inserting ends(56a,56b,57a,57b) of primary and secondary wires into respective knob(54); a step of inserting bobbin inserts(60,70) into a bottom center surface of the bobbin case; a step of connecting a primary plug wire, a primary receptacle wire, and a secondary receptacle wire to the ends of the primary and secondary wires by using a sleeve; a step of depositing an adhesive to one sides of the bobbin inserts secured to the bobbin assembly; a step of fixing the bobbin inserts to a mounting rod of a lower mold; and a step of injecting resin between an upper mold and the lower mold, and hardening the resin.
Patent KR-20040004071-A (KR)
Inventor: SHIBATA SOICHI
IPC: H01M8/24
Filed: 2003-06-28
Abstract: PURPOSE: To provide a separator plate trouble-free by burrs which are brought about at the opening edge of the manifold hole of the separator plate and degrade the battery property causing interference with gas flow between the gas passage and the manifold hole. CONSTITUTION: A step part, which is same as or deeper than the gas passage, is provided at the opening edge on the gas passage side of each manifold hole in the separator plate. It is desirable that the above step part has a taper so as to become deeper on the manifold hole side.
Patent KR-20050002215-A (KR)
Inventor: CHOI JONG KWANG
IPC: A23L7/109
Filed: 2003-06-30
Abstract: PURPOSE: Makguksoo(buckwheat noodle) noodles using Acanthopanacis Cortex and a preparation method thereof are provided, thereby improving color, taste, flavor and nutrition of Makguksoo(buckwheat noodle) noodles by adding Acanthopanacis Cortex. CONSTITUTION: The method for preparing the Makguksoo(buckwheat noodle) noodles using Acanthopanacis Cortex extract comprises the steps of: mixing 14 liter of water, 2 kg of Acanthopanacis Cortex, 200g of jujube, 200g of Eucommia ulmoides OLIV., 200g of Liriope platyphylla WANG. And 20g of Glycyrrizae Radix, heating the mixture at 90 to 120 deg. C for 6 hours to prepare the Acanthopanacis Cortex extract; mixing 5kg of buckwheat powder, 500g of sweet potato starch, 250g of salt and 3 liter of the Acanthopanacis Cortex extract and kneading the mixture to prepare dough; pressurizing the dough through a noodle machine to form fresh Makguksoo noodles; and drying the fresh Makguksoo noodles.
Patent KR-20050011073-A (KR)
Inventor: KANG BYUNG OOK
IPC: H04N7/18
Filed: 2003-07-21
Abstract: PURPOSE: A photographing system capable of transmitting video signals, supplying power and controlling image pick-up devices using a single line is provided to reduce line installation cost by providing power to each image pick-up device, transmitting an image captured by each image pick-up device, and delivering a control signal of each image pick-up device using a single cable line. CONSTITUTION: A photographing system includes an image pick-up device(400), a display, and an image pick-up controller(200). The image pick-up device captures an image of an object and outputs a video signal corresponding to the captured image. The display receives the video signal and displays an image corresponding to the video signal. The image pick-up device controller transmits control signals for setting an environment and functions of the image pick-up device to the image pick-up device. The video signal and the control signals are transmitted through a single line.
Patent KR-20050010644-A (KR)
Inventor: BOK KI YONG
IPC: F04B27/12
Filed: 2003-07-22
Abstract: PURPOSE: A high pressure generating hydraulic pump is provided to obtain easily high pressure without a separate hydraulic device or enlarging the hydraulic device, to make the hydraulic device small, and to improve movability. CONSTITUTION: A high pressure generating hydraulic pump is composed of a driving shaft(10) connected with a driving source; a swash cam(20) coupled with the driving shaft; a cylinder block(100) installed with the swash cam and composed of a discharge port(120), a leaking port(130), and a plurality of suction chambers in which plural pistons are mounted; a suction pump(30) linked to the driving shaft and arranged at the suction chamber of the cylinder block; and a passage cutout unit for shutting off a passage in the cylinder block. The passage connecting the suction chambers is divided into two groups and the passage cutout unit is installed in the passage for connecting each group.
Patent KR-20050011390-A (KR)
Inventor: KIM BYEONG UK
IPC: A23L21/10
Filed: 2003-07-23
Abstract: PURPOSE: A method of making a food product by extracting a chicken leg whose skin is removed in water and extracting with herbs is provided. The product is rich in nutrients and effective in preventing aging, recovering from fatigue and improving human health. CONSTITUTION: A chicken leg whose skin is removed is washed with cold water, heated with water at 100deg.C to remove fat, soaked in distilled liquor(soju) for 2 to 5hr to remove harmful material and then extracted at 100 to 150deg.C for 24 to 72hr. The chicken leg extract is mixed with herbs containing 0.3 to 0.7% by weight of Amomi Semen, 0.3 to 0.7% by weight of Fructus Jujubae, 0.3 to 0.7% by weight of Atractylodis Rhizoma Alba, 0.3 to 0.7% by weight of Artemisia asiatica Nakai and 0.3 to 0.7% by weight of Glycyrrhizae Radix and then extract.
Patent KR-20050013836-A (KR)
Inventor: KWON BYOUNG KI
IPC: H01L27/088
Filed: 2003-07-29
Abstract: PURPOSE: A semiconductor device having a high-voltage transistor and a logic transistor is provided to compensate a break-down phenomenon of a P-well by adding an N-well including an opposite conductive type impurity between a lower part of a P-well of a logic transistor and a substrate. CONSTITUTION: A high-voltage transistor includes a first well formed by implantation of a first conductive type impurity into a first region of a semiconductor substrate(100), a first drift region(108) formed by implantation of a second conductive type impurity, a source/drain region(120) formed by implantation of the second conductive type impurity into the first drift region, and a gate electrode(112) formed by lamination of a gate insulating layer on the first well between the first drift regions. A logic transistor includes a second well formed by implantation of the second conductive type impurity into a second region of the semiconductor substrate, a third well(106) formed by implantation of the first conductive type impurity, a source/drain region(122) formed by implantation of the second conductive type impurity into the third well, and a gate electrode(116) formed by lamination of a gate insulating layer(114) into the third well between the source/drain regions.
Patent KR-20050015126-A (KR)
Inventor: CHOI CHER KYOUK
IPC: H04L29/00
Filed: 2003-08-04
Abstract: PURPOSE: A device driver of an MOST network is provided to control effectively electronic appliances by using an MOST device controller including a net service and a resource manager program to control an OS8104 chip for mutually connecting optical communication of the MOST network. CONSTITUTION: An OS8104 chip(1) is used for connecting optical communication networks of a MOST network in order to control effectively electronic appliances(100). A MOST device controller(10) is connected between the OS8104 chip and the electronic appliances and includes a DSP chip or an operating system in order to open or close the MOST network, assign and release a synchronization channel, and connect and disconnect the synchronization channel. The MOST device controller includes a resource manager program and a net service program.
Patent KR-20050022570-A (KR)
Inventor: CHO KYUNG HEE
IPC: B62D5/07
Filed: 2003-08-27
Abstract: PURPOSE: An oil-leakage prevention cap of a power steering oil reservoir is provided to regulate constantly the internal pressure of the reservoir by closing an air flow-hole of an inner cap by a bottom unit of an outer cap for a normal state and opening the air flow-hole if the pressure of the reservoir rises or drops. CONSTITUTION: An oil-leakage prevention cap(1) mounted at an oil feeding part of an oil reservoir storing power steering oil is composed of an inner cap(3) comprising a body unit(37) having at least one air flow-hole(31) and a flange unit having an air flow-groove(33) communicating with the air flow-hole and an outer cap(4) comprising a bottom unit elastically deformed and formed with an air-flow opening and a cylinder unit(47) inserted into the oil feeding part. The bottom unit is switched between a first state for closing the air flow-hole of the inner cap and a second state for opening the air flow-hole of the inner cap.
Patent KR-20050025816-A (KR)
Title: Rubber composition with silica for improved electric conductivity
Inventor: JEONG SUNG GI
IPC: C08K13/02
Filed: 2003-09-08
Abstract: Provided is a silica rubber composition improving conductivity which includes a conductive high molecular substance and a metallic powder showing excellent conductivity so that it possibly produces a tire improving conductivity. The silica rubber composition improving conductivity comprises the components of: by 100wt% of raw materials, 20-100wt% of the metallic powder; and 1-10wt% of one or more conductive high molecular substances which are possibly selected from poly-p-phenylene derivatives like poly-p-phenylene, polyphenylene oxide, poly-p-phenylene sulfide, poly-p-phenylene sulfone and poly-p-phenylene vinylene, polypyrrol and polythiophene.
Patent KR-20050031031-A (KR)
Inventor: KWON SEONG TAE
IPC: H04B1/38
Filed: 2003-09-27
Abstract: A device for retracting an earphone wire is provided to prevent a line from being entangled when retracted by forming a separation wall in a cylindrical structure in which an earphone and an ear jack are wound. An upper case(10) and a lower case(20) are disposed up and down, and the upper case(10) is fixed on a shaft(21) formed at a central portion of the lower case(20). A rotor(30) having upper and lower retracting parts(31,32) is rotatably coupled at the shaft(21) between the upper and lower cases(10,20). A mechanical spring(40) for reciprocally rotating the rotor(30) is installed in a reception part(32a) of the lower retracting part(32) of the rotor(30). An earphone wire(50), of which one end is fixed to an earphone and the other end is fixed at an ear jack, is connected to a middle portion of the rotor(30), so that an earphone retractible part(50a) and ear jack retractible part(50b) can be retracted into the upper and lower retracting parts(31,32) of the rotor(30).
Patent KR-20040029277-A (KR)
Inventor: SAITO TAKASHI
IPC: C08G77/04
Filed: 2003-09-30
Abstract: PURPOSE: Provided is a basket type silsesquioxane resin with a (meth)acryloyl, glycidyl or vinyl group, which has controlled molecular weight distribution and molecular structure. A method for preparing the basket type silsesquioxane resin at high yield is also provided. CONSTITUTION: The basket type silsesquioxane resin with a functional group comprises 50 wt% or more of the basket type silsesquioxane resin represented by the formula of £RSiO3/2|n, wherein R is an organic functional group having any one of (meth)acryloyl, glycidyl and vinyl groups, and n is 8, 10, 12 or 14. The basket type silsesquioxane resin is obtained by hydrolyzing and condensing a silicon compound represented by the formula of RSiX3 (wherein X is a hydrolyzable group) in the presence of an organic polar solvent and a basic catalyst, and then performing recondensation of the resultant hydrolysate in the presence of a non-polar solvent and a basic catalyst.
Patent KR-20050035003-A (KR)
Inventor: JUNG JONG MOON
IPC: A23L33/00
Filed: 2003-10-11
Abstract: 본 발명은 음주로 인한 숙취 및 흡연에 의한 폐해를 동시에 해소시키는 효과를 갖는 기능성 조성물에 관한 것으로, 녹차 추출물, 에피갈로카테킨갈레이트(EGCG), 솔잎 추출물, 셀레늄, 비타민 C 및 비타민 B 2 로 이루어진 군으로부터 선택된 조합을 주성분으로 하고, 아스파라거스 추출물, 콩나물 추출물, 당근 추출물 및 오이 추출물로 이루어진 군으로부터 선택된 조합을 부가성분으로 포함하는 숙취 해소 및 흡연 폐해 예방 및 개선용 기능성 조성물에 관한 것이다. 본 발명의 조성물은 동물실험 및 임상실험 결과 니코틴 유래의 발암물질인 N-니트로사민류의 생성 및 활성화를 억제하여 코티닌으로 전환되는 대사량을 증가시킴으로써 흡연에 의한 폐해예방 효능이 탁월하며, 또한 동시에 우수한 숙취해소 효능을 나타내었으므로, 본 발명의 조성물을 유효성분으로 함유하는 기능성 식품은 현대인의 음주와 흡연 후 숙취해소 및 흡연폐해 예방 및 개선을 위해 유용하고 간편하게 이용될 수 있다.
Patent KR-20050035362-A (KR)
Inventor: CHOI JOONG IL
IPC: H01L21/027
Filed: 2003-10-13
Abstract: 포토리소그라피 공정에서의 공정 마진을 평가하기 위한 방법이 개시되어 있다. 상기 방법은, 반도체 기판을 대상으로 하는 포토리소그라피 공정을 실시한 후, 상기 반도체 기판의 전영역을 실시간으로 스캔함으로서 달성된다. 그리고, 상기 스캔에 의해 상기 포토리소그라피 공정이 양호하게 실시된 영역을 결하는 것이다. 이와 같이, 기판의 전영역을 대상으로 공정 마진의 평가가 이루어지기 때문에 평가에 대한 신뢰도의 향상을 기대할 수 있다.
Patent KR-20050039029-A (KR)
Inventor: EOM YOON SEOB
IPC: F04D29/66
Filed: 2003-10-23
Abstract: 본 발명은 원심팬의 역류 차단 구조에 관한 것으로, 본 발명은 구동 모터에 결합하여 회전력을 전달하는 허브판과, 허브판의 외주연에 원주방향을 따라 돌출하도록 형성하여 공기를 축방향으로 흡입한 후 반경방향으로 토출하는 다수 개의 블레이드와, 각 블레이드의 타단을 연결하는 지지링으로 이루어진 원심팬에 있어서, 블레이드의 입구측 끝단부위에 토출공기의 역류를 차단하도록 역류차단부를 형성함으로써, 토출공기가 흡입공기와 혼합되는 것을 방지하여 공기의 풍량을 높이고 유동소음을 낮출 수 있다.
Patent KR-20050041535-A (KR)
Inventor: CHEON HYUND TAK
IPC: H01L27/115
Filed: 2003-10-31
Abstract: 본 발명의 알루미늄 산화막을 이용한 자기 랜덤 엑세스 메모리 소자는 기판, 기판의 상면에 스퍼터링에 의해 형성되는 제 1 자성박막, 제 1 자성박막의 상면에 원자층 증착법에 의해 형성되는 알루미늄 산화막, 알루미늄 산화막의 상면에 스퍼터링에 의해 형성되는 제 2 자성박막을 포함하는 것을 특징으로 한다.