baber/WOPTO huggingface dataset:
Patent KR-20040056893-A (KR)
Title: Thermal Resistant Copolymer Resin and Method for Preparing the Same
Inventor: HAN JUNG JIN
IPC: C08F8/32
Filed: 2002-12-24
Abstract: PURPOSE: An imidized copolymer resin and its preparation method are provided, to improve heat resistance by suppressing the side reaction and the generation of aromatic vinyl homopolymers by using a polymerization inhibitor. CONSTITUTION: The method comprises the steps of injecting a mixture A comprising 20-60 parts by weight of an aromatic vinyl monomer and 0.01-0.1 parts by weight of an initiator and a mixture B comprising 10-30 parts by weight of an unsaturated dicarboxylic anhydride and 20-60 parts by weight of a ketone-based solvent to a reactor separately; and transferring the reaction mixture to a reactor connected continuously to the first process, and injecting a mixture C comprising 10-20 parts by weight of a primary amine-based monomer, 0.1-1.0 parts by weight of a reaction active catalyst-based initiator and 0.1-1.0 parts by weight of a polymerization inhibitor to the reactor. Preferably the reactor of the second process is CSTR, PFR or multistep reactor.
Patent KR-20040057119-A (KR)
Title: Thickness reinforcement Method for nitride membrane
Inventor: KIM IN CHEOL
IPC: H01L21/318
Filed: 2002-12-24
Abstract: PURPOSE: A method for reinforcing the thickness of a nitride thin film is provided to improve sensitivity and strength by effectively intensifying weak portion alone of the nitride thin film using the stress distribution of the nitride thin film. CONSTITUTION: A stress distribution of a nitride thin film is obtained by carrying out a structure analysis. A weak portion of the nitride thin film is checked by using the stress distribution. The thickness of the weak portion is intensified by carrying out an etching process. The entire thickness of the nitride thin film and the thickness for reinforcement are decided by reducing the thickness for the entire nitride thin film and simultaneously controlling reinforcement thickness according to stress.
Patent KR-20040058531-A (KR)
Title: Device for controlling noise for clock generator
Inventor: LEE SANG DAE
IPC: H03K3/00
Filed: 2002-12-27
Abstract: PURPOSE: An apparatus for removing noise of a clock generator is provided to generate stably a system clock by performing a noise filtering process according to a noise level of an input signal. CONSTITUTION: An apparatus for removing noise of a clock generator includes a noise level detector, a first noise filter, and a second noise filter. The noise level detector(10) is used for detecting a noise level of an input signal. The first noise filter is used for filtering different noise frequencies according to frequency components of the detected noise level. The first noise filter is formed with a low-frequency noise filter(20) and a high-frequency noise filter(30). The second noise filter(40) is used for filtering the remaining noise from an output signal of the first noise filter.
Patent KR-20040058687-A (KR)
Title: CMOS image sensor with surrounding layer of photodiode for high focusing efficiency
Inventor: LEE JU IL
IPC: H01L27/146
Filed: 2002-12-27
Abstract: PURPOSE: A CMOS(Complementary Metal Oxide Semiconductor) image sensor is provided to improve optical condensation efficiency by forming a light condensation layer around a photodiode. CONSTITUTION: An interlayer dielectric(34) is formed on a substrate(30) with a photodiode(32). A light condensation layer is formed on the interlayer dielectric around the photodiode. The light condensation layer is composed of a plurality of metal lines(35a,38a,41a) and a plurality of contact plugs(37,40). The light condensation layer is made of one selected from the group consisting of aluminium, copper, tungsten or alloy thereof.
Patent KR-20040059160-A (KR)
Inventor: CHOI BONG JUN
IPC: F25D21/08
Filed: 2002-12-28
Abstract: PURPOSE: A defrosting device of a refrigerator is provided to facilitate production and to improve the defrosting efficiency through increase of a heat transfer area. CONSTITUTION: A defrosting device of a refrigerator comprises an evaporator(5) installed to the rear of the refrigerator and heating bodies transmitting heat for defrosting to the evaporator. The heating body is a plate-type heater(60) attached to at least one side of the evaporator, to transmit heat to the evaporator. The plate-type heater comprises a thermal conductive metal plate(61) and a hot wire(62) installed in the plate.
Patent KR-20040061159-A (KR)
Title: water soluble Thermosetting polyester resin composition and method of preparing the same
Inventor: CHO HAK JE
IPC: C08K3/00
Filed: 2002-12-30
Abstract: PURPOSE: A water-soluble thermosetting polyester resin composition and its preparation method are provided to improve the processability, chemical resistance, solvent resistance, adhesion and stretching resistance of a paint for under coat. CONSTITUTION: The water-soluble thermosetting polyester resin composition comprises 100 pats by weight of a thermosetting polyester resin obtained by condensation polymerizing polyethylene terephthalate, glycol and a polyvalent acid; 5-20 parts by weight of an anhydrous polybasic acid; and an amine. Preferably the thermosetting polyester resin has an acid value of 20-30, an OH value of 50-120 and a molecular weight of 8,000-20,000. The method comprises the steps of condensation polymerizing polyethylene terephthalate, glycol and a polyvalent acid to prepare a polyester resin; adding an anhydrous polybasic acid to the obtained polyester resin to polymerize it; and adding an amine to neutralize the obtained product.
Patent KR-20020029075-A (KR)
Title: 다공성 세라믹 연마 복합체를 포함하는 금속 결합 연마제품 및 가공물을 연마하기 위한 그의 사용 방법
IPC: B24B7/24
Filed: 2000-07-06
Abstract: 제1 주 표면 및 제2 주 표면을 가진 경질 배면체; 각각이 다공성 세라믹 매트릭스 전체에 분포된 다수의 연마 입자를 포함하는 다수의 세라믹 연마 복합체; 및 세라믹 연마 복합체를 배면체의 하나 이상의 주 표면에 부착시키는 하나 이상의 금속 코팅을 포함하는 연마 제품이 제공된다.
Patent KR-20020040865-A (KR)
IPC: C07D231/12
Filed: 2000-09-27
Abstract: 본 발명은 하기 화학식 I의 화합물 및 그의 약학적으로 허용가능한 염에 관한 것이다.  화학식 I의 화합물은 세로토닌, 노르에피네프린 및 도파민의 재흡수 억제제로서 활성을 나타내며 중추신경계 및 기타 장애의 치료에 사용될 수 있다. 
     화학식 I 
     
       
     
     상기 식중, 
     A, B, R 1 내지 R 4 , X, Y, Z, n 및 m은 명세서에 정의된 바와 같다.
Patent KR-20020058009-A (KR)
Title: 제품에 대한 부가물품을 판매하는 방법 및 시스템
IPC: G06Q10/00
Filed: 2001-08-31
Abstract: 제품에 대한 부가물품을 판매하는 방법 및 시스템에 관한 것으로서, 사용자가 상기 제품을 구입했을 때 상기 사용자에 대한 식별자를 수신하고, 상기 제품에 대한 부가물품의 재고 레벨이 미리 정한 값 아래로 떨어질 때의 시점을 추정하고, 상기 추정된 시점이 이르렀을 때, 상기 식별자를 이용하여 상기 사용자의 위치를 찾고 상기 재고 레벨이 상기 미리 정한 값 아래에 있음을 상기 사용자에게 통지하며 상기 사용자가 상기 부가물품에 대한 주문 요청을 할 수 있게 한다.  따라서, 사용자에게 친숙하고 사용이 용이하면서 간편한 판매 시스템 및 방법이 제공된다.
Patent KR-20020064315-A (KR)
IPC: B32B27/18
Filed: 2001-06-26
Abstract: RFID를 포함하는 복합물이 RFID의 안테나의 디튜닝없이 금속 물체상에, 내에, 또는 부근에 장착될 수 있다. 복합물(12)은 제 1 RFID 또는 EAS 디바이스 포함 층(14), 및 제 1 층 부근에 유지된 발포성 물질층(17)을 포함한다. 발포성 물질층은 열 또는 마이크로파와 같은 외부 자극을 받을 때 크기가 팽창하고 밀도가 감소한다. 발포성 층은 팽창성 물질을 포함할 수 있고, RF 방사선 흡수 물질 충전제를 가질 수 있다. 압력 감응 접착제(19)는, 복합물이 라벨 형태일 때, 복합물의 프린트가능한 표면(12)의 프린팅후에, 금속(22) 물체에 또는 부근에 복합물을 장착시키는데 사용될 수 있고, 발포성 물질층(17)은 프린팅후 그리고 금속(22) 물체에 또는 부근에 장착하기 전 또는 후에 외부 자극을 받는다.
Patent KR-20020059749-A (KR)
IPC: A61F13/15
Filed: 2000-11-17
Abstract: 본 발명은 탄성 재료의 물 또는 수증기에 대한 노출을 조절함으로써 탄성 재료(예를 들면, 탄성 스트랜드)의 응집을 조절하는 것에 관한 것이다.  본 발명의 몇몇 형태에서, 이러한 방식의 응집 조절은 스트랜드를 원료로 사용하는 제조 기계에서의 스트래드의 절단을 감소시키거나, 최소화시키거나 또는 없앤다.  대표적인 실시태양은 탄성 재료가 실질적으로 응집되지 않은 채로 남아 있도록, 탄성 재료를 함유하는 용기 또는 탄성 재료 주위에서 온도, 습도 또는 2가지를 모두 조절함으로써 재료의 물 또는 수증기에 대한 노출을 조절하는 것을 포함한다.  다른 대표적인 실시태양은 재료가 실질적으로 응집되지 않은 채로 남아 있도록 물 또는 수증기에 대한 재료의 노출을 조절하는 방식으로 탄성 재료를 포장하는 것을 포함한다.
Patent KR-20020073134-A (KR)
IPC: G02F1/1343
Filed: 2001-09-26
Abstract: 본 발명에 따라서, 평탄화막(9)은 포토 마스크(20)를 사용하여 노출되고, 그 후에 현상되어, 평탄화막(9)에 오목부들(9b)이 제공된다. 마지막으로, 픽셀 전극들(10)은 이러한 오목부들(9b)을 포함하는 평탄화막(9) 상에 형성된다.
Patent KR-20020063596-A (KR)
IPC: B23K35/30
Filed: 2001-11-27
Abstract: 본 발명은, 반도체소자가 탑재된 베이스와 캡을 땜납을 개재하여 접합시키는 공정을 포함하는 전자부품의 기밀 실링방법에 있어서, 땜납으로서, Au 78 wt.% 이상 79.5 wt.% 미만, 잔부 Sn으로 이루어지는 땜납을 사용하여 접합하는 전자부품의 기밀 실링방법이다. 여기서, 땜납으로서 Au 78 wt.% 이상 79 wt.% 이하, 잔부 Sn으로 이루어지는 땜납을 사용하고, 더욱이 캡에 금 도금을 실시하여 접합시키는 것이 특히 바람직하다.
Patent KR-20020076311-A (KR)
Title: Inulin Products with Improved Nutritional Properties
IPC: A61P19/10
Filed: 2001-02-14
Abstract: The invention relates to novel inulin products and compositions thereof, to their manufacture and to their use for modulating the bacterial flora and the fermentation pattern of inulin in the large intestine of humans and mammals, to their use for providing improved inulin-associated nutritional effects/benefits, and to their use for the manufacture of a pharmaceutical composition for providing said effects/benefits in humans and mammals. The novel inulin products consist of a mixture of an easily fermentable inulin (EFI) component (preferably an oligofructose, an agave inulin, or a mixture thereof) and a hardly fermentable inulin (HFI) component (preferably a long-chain inulin with a (DP) ≥ 20, typically chicory inulin with a (DP) ≥ 23), in a weight ratio ranging from 10/90 to 70/30. The nutritional effects include improved mineral absorption, particularly calcium and magnesium, bone mineral density increase, reduction of bone mineral density loss, improvement of bone structure, modulation of lipid metabolism, stimulation of the immune system, and anti-cancer effects. The novel inulin products are particularly suitable for the manufacture of a composition or a medicament for preventing, for postponing and for treating osteoporosis in humans, particularly postmenopausal women.
Patent KR-20040018900-A (KR)
IPC: B01J35/02
Filed: 2002-07-18
Abstract: 가시광영역에서 높은 촉매기능을 발휘하는 본 발명의 광촉매는, 서로 광촉매특성을 가지고 또한 적어도 한쪽이 가시광역에서도 광촉매특성을 갖는 p형 산화물 반도체와 n형 산화물 반도체로 이루어지는 헤테로접합을 갖는 산화물 복합체에 의해 구성되는 것을 특징으로 한다.  가시광역에서도 광촉매특성을 갖는 상기 p형 산화물 반도체로서 Ca(Zr 0.95 Y 0.05 )O 3-δ 의 페로브스카이트형 산화물이, n형 산화물 반도체로서 아나타제형의 산화티탄이 예시된다.
Patent KR-20030014279-A (KR)
IPC: G02F1/167
Filed: 2000-12-12
Abstract: 본 발명은 i) 하나 또는 그 이상의 비-불소화된 유리-래디칼-중합성 단량체 1 내지 2 중량부, 및 ii) 유리-래디칼-중합성 기로 하나 또는 그 이상의 부위에서 종결된 하나 또는 그 이상의 고도로 불소화된 마크로머 1 내지 9 중량부의 혼합물을 함께 중합하여 시드 입자의 분산액을 형성하는 제1 단계; 및 상기 시드 입자를 시드 입자의 총 중량에 대해 하나 또는 그 이상의 비-불소화된 유리-래디칼-중합성 단량체 10 내지 1,000 중량%의 추가량과 함께 중합하는 제2 단계를 포함하는, 고도로 불소화된 액체 용매중 라텍스의 2 단계 제조 방법을 제공한다.  또한, 본 발명은 고도로 불소화된 액체 용매 및 평균 입자 크기가 250 nm 또는 그 미만, 더욱 바람직하게는 200 nm 또는 그 미만인 분산된 입자를 포함하는 미세한 라텍스를 제공한다.  본 발명의 라텍스는 전기영동 디스플레이에 유용할 수 있다.
Patent KR-20040063300-A (KR)
Inventor: KIM GYU HONG
IPC: H01L27/115
Filed: 2003-01-06
Abstract: PURPOSE: A flash memory device and a programming method thereof are provided to generate a uniform voltage drop at a source line without regard to the number of programmed memory cells. CONSTITUTION: A memory cell array comprises ni x 2 memory cells having a drain connected to each of ni bit lines and a gate connected to each of 2m word lines(WL1-WL2m) and a source connected to each of m source lines. A dummy array(30) comprises at least 2m transistors having a gate connected to each of 2m word lines and a source connected to each of m source lines and a drain connected to at least more than one dummy bit line. A current obtained by adding a bias current flowing from the source line to the bit lines and a bias current flowing from the source line to the dummy bit line in response to n input data during programming is equal to a bias current flowing from the source line to the bit lines when n memory cells of the memory cell array are programmed.
Patent KR-20030011949-A (KR)
Inventor: LEE KYU
IPC: A42B3/22
Filed: 2003-01-03
Abstract: PURPOSE: Provided is a wireless opening and shutting apparatus for a front cover in a motorcycle helmet which uses a handle or a switching tool in the helmet so that it enables to open or close the helmet in an easy way. CONSTITUTION: The wireless opening and shutting apparatus for the front cover in the motorcycle helmet comprises the parts of: the front cover(110) which is rotated on a basis of an axial point at the opening side(101) of a helmet body(100) to block external air; a rotation switch part(120) which includes a worm wheel at the axial point of the front cover and a worm gear to be contacted by the worm wheel and rotated by a driving motor; a power supply part which places a generator at the center of a rotation wing and a cover on the wall part to form an inflow passage for external air and gain power in driving; and a transmitting-receiving switch(C) which drives the rotation switch part through communication between a transmitter and a receiver.
Patent KR-20040065328-A (KR)
Inventor: SA SEUNG HUN
IPC: H01L27/146
Filed: 2003-01-13
Abstract: PURPOSE: A CMOS image sensor and a method for manufacturing the same are provided to reduce effectively defects in a trench by filling the trench with SEG(Selective Epitaxial Growth). CONSTITUTION: In a CMOS image sensor including doping regions for a photodiode and a transfer transistor, a trench is formed in a substrate(31). A silicon layer(32) is filled in the trench by SEG. The transfer transistor is formed on the substrate. The doping regions for the photodiode are formed in the substrate between the silicon layer and the transfer transistor.
Patent KR-20040077369-A (KR)
Inventor: HWANG SANG CHEOL
IPC: H04L12/28
Filed: 2003-02-28
Abstract: PURPOSE: A multiple master UTOPIA level 2 device interface logic is provided to realize logics interfaced with a multiple master UTOPIA level 2 device in a UTOPIA level2 slave mode and for interfacing slave UTOPIA level 2 devices with a inferior level in one FPGA(Field Programmable Gate Array). CONSTITUTION: A plurality of egress Rx blocks(110), that is, UTOPIA(Universal Test and Operations PHY Interface for ATM) level 2 slave interface logics receive cells from superior multiple master UTOPIA level 2 devices. An egress cell control block(120) controls cells by ports. A plurality of egress internal FIFO(First Input First Output) blocks(130) store cells by ports. An egress Tx block(140), that is, a UTOPIA level 2 master interface logic transmits data to inferior physical devices.
Patent KR-20030031031-A (KR)
Inventor: CHOI HYUN HWA
IPC: A41D19/015
Filed: 2003-02-28
Abstract: PURPOSE: Provided is a finger glove for nail art which protects the entire nail, manicure colors and manicure arts painted on a nail with absorbing sweat of a finger so that it helps to protect nail art. CONSTITUTION: The finger glove for nail art is characterized by consisting of 100% flexible spandex cotton to prevent nail manicure colors and nail manicure arts from being damaged by external touch and absorbing the sweat of the finger effectively due to the characteristics of a spandex cotton material.
Patent KR-20040079694-A (KR)
Inventor: BAEK DONG CHEOL
IPC: G06F13/00
Filed: 2003-03-10
Abstract: PURPOSE: A multi-data interface device using the USB(Universal Serial Bus) is provided to offer a USB typed external memory device equipped with a digital audio/video playback function as well as a simple external memory function. CONSTITUTION: A digital audio player(70) plays the audio information stored in the memory device as a digital audio format. A digital video player(80) plays the video information stored in the memory device as a digital video format. A detector(40) automatically selects the memory function and the digital audio/video playback function. A CPU(90) decides a control mode of a switch(20) based on the detected data and controls the memory devices(120). A key input device(130) for receiving control from a user is controlled by the CPU. A display(140) displays an operation state.
Patent KR-20040082001-A (KR)
Inventor: YOO JAE BOK
IPC: B60P7/02
Filed: 2003-03-17
Abstract: PURPOSE: A cover of a loading compartment for a vehicle is provided to protect luggage, and to load the luggage conveniently by automatically opening and closing a loading compartment of a sports utility truck such as Musso with the cover. CONSTITUTION: A cover for a loading compartment of a vehicle is composed of a frame support bar(1), stainless steel pipes(2-4), an FRP(Fiberglass Reinforced Plastic) attaching bar(5), an electric motor(6), cover cloth(7) and a rear mirror(8). The stainless steel pipes are bent and movably fixed to the frame support bar by pieces. The cover is fastened to the vehicle with the screw by spreading the cover cloth on the stainless steel pipes fixed to the frame support bar. The cover is automatically opened and closed with the electric motor by pressing a connecting switch.
Patent KR-20030079732-A (KR)
Title: 메모리 구조 및 메모리 구조의 제조 방법
IPC: H01L21/8239
Filed: 2003-04-01
Abstract: 본 발명의 메모리 구조(memory structure)는 제 1 전극(electrode) (35, 835, 135, 335, 435, 635), 제 2 전극(37, 27, 139a, 139b, 339a, 339b, 439a, 439b, 639a, 639b), 제 3 전극(33, 833, 133, 141, 333, 341, 433, 441, 633, 641), 제 1 전극과 제 2 전극의 사이에 배치된 미리 결정된 장치형(device type)의 제어 소자(control element)(25), 제 2 전극과 제 3 전극의 사이에 배치된 미리 결정된 장치형의 메모리 저장 소자(memory storage element)(23)를 포함한다.   메모리 저장 소자는 제어 소자의 단면 영역 보다 좁은 단면 영역을 갖는다.
Patent KR-20040087533-A (KR)
Inventor: KIM MYEONG GEUN
IPC: H04M3/54
Filed: 2003-04-08
Abstract: PURPOSE: A method and a system for providing an automatic local business call connection and its phone set are provided to connect a user to the closest business store of each various business line nationwide by using a one-touch button and voice recognition dial function. CONSTITUTION: A local information automatic connection system(200) recognizes a location of a caller and directly connects his/her call to the closest affiliate business store through call connection voice recognition of an intelligent network system(100). An interface unit(210) interfaces a call connection and connection information with the intelligent network system(100). An automatic announcement unit(220) receives business information to be automatically connected as desired by the caller through a call made to a representative phone number. A database unit(250) includes a phone number database of business stores which desire to provide information by areas and businesses for an automatic connection service and a database of search areas of subscriber phone numbers. A search unit(240) searches an area of a caller's phone number to search a corresponding business phone number of the pertinent area. An automatic connection controller(230) controls to automatically connect the caller to a phone number close to the position of the caller.
Patent KR-20040088694-A (KR)
Inventor: HWANG GWAN JUN
IPC: G11B33/02
Filed: 2003-04-10
Abstract: PURPOSE: A button cap structure for an audio apparatus is provided to form guide spacers along a mobile direction of button caps, and to enable the guide spacers of the adjacent button caps to guide mutual movements. CONSTITUTION: Guide spacers(33) guide operations of button cap bodies(31) while filling a gap between the adjacent button cap bodies(31) by being extended in operational direction of the button cap bodies(31) on at least one side(31s) of the button cap bodies(31). The guide spacers(33) are formed in at least pairs on one side of the button cap bodies(31). At least one guide spacer(33) is located between one pair of other guide spacers on a side corresponding to the adjacent button cap bodies(31).
Patent KR-20040088973-A (KR)
Inventor: KIM JIN CHEOL
IPC: E01D19/04
Filed: 2003-04-14
Abstract: PURPOSE: An anti-transformation device of a lead rubber bearing is provided to prevent the shear transformation by fixing a stud bolt to a temporary fixing plate. CONSTITUTION: The anti-transformation device of a lead rubber bearing comprises: temporary fixing plates(60) fixed on both sides of an upper plate(50) and a lower plate(30); motion-limiting members fixed to both inner ends of the temporary fixing plate(60) and divided into an upper plate limiting member to support the front or the rear of the upper plate(50), and a lower plate limiting member to support the front or the rear of the lower plate(30); and many linear members(70) whose both ends are connected to the temporary fixing plate(60).
Patent KR-20040091829-A (KR)
Title: Device for chemical synthesis
Inventor: JANG SEONG HUN
IPC: B01J14/00
Filed: 2003-04-22
Abstract: PURPOSE: Provided is a device for chemical synthesis which is able to automatically control injection and reaction of samples and solutions and significantly reduce reaction deviation and reaction time caused by manual work when synthesizing chemical materials requiring many reactions such as polypeptide. CONSTITUTION: The device comprises a well plate fixing part (30) fixing a well plate (31) where samples are stored, a solution supplying device (40) supplying solution required for synthesis or reaction, an reactor (60) reacting the samples with the solution, a reactor shaker (70) swinging the reactor to allow the content therein to be reacted, a dispenser (10) having a probe to collect the samples from the well plate and dispense them to the reactor or collect the solution from the solution supplying device and dispense it to the reactor, a horizontal direction moving means consisting of a first shaft member (21) and a second shaft member (22) and moving the dispenser in horizontal direction, a vertical direction moving means moving the dispenser crossing the horizontal direction moving means in horizontal direction and consisting of a third shaft member (23), an upward and downward moving means moving the dispenser crossing the vertical direction moving means upward or downward direction, a probe washer (70) washing the probe of the dispenser, a collecting and dispensing syringe pump (15) connected to the probe of the dispenser sucking in or dispensing the samples of the well plate or the solution of the solution supplying device or dispensing the washing solution with the probe washer and a control part (80) controlling the operation of the dispenser, the horizontal direction moving means, the vertical direction moving means, the upward and downward moving means, the collecting and dispensing syringe pump, the solution supplying device, the reactor shaker and the probe washer.
Patent KR-20040095886-A (KR)
Inventor: BAE CHANG MIN
IPC: H03K4/24
Filed: 2003-04-29
Abstract: PURPOSE: A bootstrap circuit is provided to prevent damage of a gate and reduce on-resistance by providing a constant supply voltage to a gate of a switching transistor. CONSTITUTION: A bootstrap unit(10) supplies a supply voltage to a switching transistor according to a clock signal and a reverse clock signal. A transfer unit(20) transfers the supply voltage from the bootstrap unit to the switching transistor. A controller(30) is used for turning on/off the transfer unit according to the clock signal. A gate grounding unit(40) grounds a gate of the switching transistor according to the clock signal. A source grounding unit(50) grounds the switching transistor.
Patent KR-20040094538-A (KR)
Inventor: SEO JUNG SE
IPC: F25D11/00
Filed: 2003-05-03
Abstract: PURPOSE: A device for maintaining low temperature of a storage unit is provided to install the device to a part corresponding to the upper surface regardless of the cover or side walls of the storage unit, to increase the refrigerating efficiency by emitting the heat of formation to the atmosphere. CONSTITUTION: A device for maintaining low temperature of a storage unit(4) comprises the storage unit and a low-temperature-maintaining module. The storage unit is formed in a predetermined size to maintain airtight storage by the opening and shutting of a cover(8) or withdrawal of a receiving unit. The storage unit has a mounting hole(12) pierced in the upper surface. The low-temperature-maintaining module is installed to the mounting hole of the storage unit to absorb the material temperature of an article stored in a storage part(16) or heat of formation through a heat absorption plate(18) and to emit the heat of formation to the atmosphere through a heat emission plate(20), to work by preset information of a control part(14).