baber/WOPTO huggingface dataset:
Patent KR-20040059048-A (KR)
Title: Fill tube of ice maker for refrigerator
Inventor: JUNG WON CHEOL
IPC: F25C1/22
Filed: 2002-12-27
Abstract: PURPOSE: A water supply tube of an ice-making machine of a refrigerator is provided to prevent an inner part of the water supply tube from being frozen by actively conducting heat by winding an aluminum tape around the left side of the water supply tube. CONSTITUTION: A water supply tube(39) inserted and installed to the side of a refrigerator to guide water to be supplied to an ice groove(34') of an ice-making machine(30) is composed of a heat conduction reinforcing unit formed at one outer peripheral surface of the water supply tube and wound around with a material with a high heat-conductive coefficient and a slot unit(55) formed at the other side of the tube and opened at the predetermined length. The heat conduction reinforcing unit is formed by winding the outer peripheral surface of the water supply tube with an aluminum tape(53).
Patent KR-20040061656-A (KR)
Title: Thin film transistor with protective cap over flexible substrate and electronic device using the same and manufacturing method thereof
Inventor: CHAE SU DU
IPC: H01L27/32
Filed: 2002-12-31
Abstract: PURPOSE: A method for fabricating an electronic device is provided to improve tolerance with respect to the stress occurring in bending a flexible substrate by forming a protection cap for capping a thin film semiconductor device installed in the flexible substrate. CONSTITUTION: A thin film semiconductor chip is fabricated on the flexible substrate(51). The protection cap(63) is formed to cover a semiconductor chip. An insulation layer is stacked on the substrate to cover the protection cap. A contact hole is formed from the insulation layer and the protection cap to the upper surface of the semiconductor chip. An electrode electrically contacts the semiconductor chip through the contact hole. A driven unit driven by the semiconductor chip is formed on the electrode.
Patent KR-20020060171-A (KR)
IPC: A61P17/12
Filed: 2000-09-06
Abstract: 다음 성분(A) 및 성분(B)을 함유하는 케미칼필링제. 
     (A)일반식 
     
       
     
     〔식 중, B는 알코올 잔기(殘基), AO는 탄소수 3∼18의 산화알킬렌, a는 1이상, m은 4이상, n은 0이상으로, 산화에틸렌의 부가몰양 m은 산화에틸렌사슬 부분이 전체 분자량의 40%이상을 나타낸다〕, 예: 폴리에틸렌글리콜 
     (B) 페놀화합물, 예: 살리실산, 페놀, 레조르신
Patent KR-20020042714-A (KR)
IPC: C08L83/04
Filed: 2000-10-11
Abstract: 본 발명은 바람직한 생리학적 성능을 갖는 피복된 콘택트 렌즈의 제조방법에 관한 것이다.  바람직하게는, 당해 렌즈는 친수성 피복 재료로 피복된 소수성 콘택트 렌즈 기재로부터 제조된다.  당해 소수성 렌즈 기재는 팽창 지수가 1보다 큰 친수성 재료로 피복된다.  피복된 렌즈는 물리적 결함 프로필 및 표면 조도 프로필이 작다.
Patent KR-20020047298-A (KR)
Title: 경피 약품 전달 장치
IPC: A61K31/407
Filed: 2000-10-27
Abstract: 화합물 (R)-(Z)-1-아자비시클로[2.2.1]헵탄-3-온,O-[3(3-메톡시페닐)-2-프로피닐]옥심의 경피 전달을 위한 시스템 및 장치가 개시된다.  이들 장치는 접착제 중의 약품 저장기 층 및 피부 접촉 접착제 층을 포함하는데, 피부 접촉 접착제 층이 속도 조절 막으로서 작용한다.  이들 장치는 또한 접착제 중의 약품 저장기 층과 피부 접촉 접착제를 포함하며, 상기 두개 접착제 층 사이에 막이 존재하는 장치를 포함한다.  화합물은 알츠하이머병을 포함하는 다양한 인식 질병의 치료에 유용한 무스카린 작동근이다.
Patent KR-20020081248-A (KR)
Title: 클럭신호선을 통해 데이터신호를 송수신하기 위한 시스템및 방법
IPC: H04L7/04
Filed: 2001-10-30
Abstract: 본 발명의 시스템은 클럭 및 데이터신호들을 동일한 전송선을 통해 전송하는 고유한 전송장치를 포함한다. 수신장치는 상기의 동일한 전송선을 이용하여 데이터신호를 전송장치로 되돌려 보낸다. 전송장치는 클럭 생성장치와 디코더 및 라인 인터페이스를 포함한다. 클럭 생성장치는 가변위치의 하강엣지를 포함하는 클럭신호를 생성한다. 상기 하강엣지의 위치는 수신장치에 의해 디코딩되어 상기 클럭신호에서 데이터를 추출한다. 상기 수신장치는 클럭 재생성장치와 데이터 디코더 및 복귀 채널 인코더를 포함한다. 클럭 재생성장치는 전송선을 감시하고, 신호들을 수신하여 필터링하며, 상기 전송선상의 신호로부터 수신장치의 클럭신호를 생성한다. 복귀 채널 인코더는 신호들을 생성하여 전송선에 싣는다. 신호는 전송장치에 의해 제공되는 클럭 및 데이터신호상에 실리거나 겹쳐진다.
Patent KR-20020092945-A (KR)
Title: 금속 파우더 또는 금속 스폰지 입자의 박층으로 제조된고전력 커패시터
IPC: H01L27/08
Filed: 2001-02-02
Abstract: 커패시터의 애노드(14,208,410) 및/또는 캐소드(12,212,420)은 넓은 표면적을 갖는다. 애노드의 높은 표면적은 도전성 금속 스폰지(416) 또는 금속 입자(18)로부터 형성된 얇은 도전층(16)으로부터 애노드를 형성함으로써 제공된다. 이러한 물질은 높은 접근도의 넓은 표면적을 제공한다. 입자는 티타늄과 같은 금속의 방향성 또는 비방향성 스폰지 입자이다. 도전층은 입자 표면을 애노드화함으로써 형성된, 그 표면상에 유전체막(36,236,414)를 갖는다. 유전체막은 높은 유전 상수 및 높은 유전강도의 조합을 갖는다. 커패시터의 캐소드(12,212,420)는 고체 물질이거나 더 바람직하게는 애노드와 유사한 입자 또는 스폰지로부터 표면을 형성함으로서 제공된 큰 표면을 갖는다. 커패시터로부터 취득가능한 높은 유전강도는 극히 최대화될 수 있고, 집적 회로 애플리케이션에 대해 특히 적합한 커패시터를 만들게 된다.
Patent KR-20020091214-A (KR)
IPC: C21B11/02
Filed: 2001-04-11
Abstract: A molten-bath based direct smelting process and apparatus for producing metals from a ferrous material is disclosed. The process includes injecting feed materials being solid material and carrier gas into a molten bath at a velocity of at least 40 m/s through at least one downwardly extending solids injection lance having a delivery tube of internal diameter of 40-200 mm that is located so that a central axis of an outlet end of the lance is at an angle of 20 to 90 degrees to a horizontal axis. The feed materials injection generates a superficial gas flow of at least 0.04 Nm<SUP>3</SUP>/s/m<SUP>2 </SUP>within the molten bath at least in part by reactions of injected material in the bath. The gas now causes molten material to be projected upwardly as splashes, droplets and streams and form an expanded molten bath zone, with the gas flow and the upwardly projected molten material causing substantial movement of material within the molten bath and strong mixing of the molten bath. The feed materials are selected so that, in an overall sense, the reactions of the feed materials in the molten bath are endothermic. The process also includes injecting an oxygen-containing gas into an upper region of the vessel via at least one oxygen gas injection lance and post-combusting combustible gases released from the molten bath.
Patent KR-20020089513-A (KR)
Title: 전력 반도체 디바이스
Filed: 2002-02-15
Abstract: 전력 MOSFET(1)는 개별적 소스 전극(s1,s2)을 갖는, 주 전류 운반 섹션(MCT) 및 감지 전류 운반 섹션(SCT)을 갖는다.   주 섹션(MCT)의 소스 전극(s1)은 디바이스 소스 단자(S1,S2)에 접속된다.   감지 섹션(SCT)의 소스 전극(s2)은 전류 감지 저항(R1)을 통해 동일한 단자(S1,S2)에 접속된다.   두 섹션(MCT,SCT)은 개별적 게이트 전극(g1,g2)을 갖는다.   기준 전압(Vr)을 감지 저항(R1) 양단의 감지 전압(Vs)과 비교함으로써, 제 1 제어 신호(CS1)가 감지 섹션(SCT)의 게이트 전극(g2)에 제공된다.   다른 제어 수단(RG,MDD)은 제 1 제어 신호(CS1) 및 감지 전압(Vs)에 접속된 조절 회로(RG)을 포함하며 제 2 제어 신호(CS2)을 주 섹션(MCT)의 게이트 전극(g1)에 제공한다.   이 제 2 제어 신호(CS2)는 감지 섹션(SCT)의 게이트 소스 전압과 동일한 주 섹션(MCT)의 게이트 소스 전압을 유지한다.   이는 감지 저항(R1)으로 인한 감지 섹션(SCT)으로의 구동 전압 감소를 위해, 주 섹션(MCT)의 게이트 전극(g1)으로의 구동을 보정한다.
Patent KR-20030018016-A (KR)
Title: Shock-absorbing intervertebral implant
IPC: A61L27/00
Filed: 2001-07-12
Abstract: The invention relates to an intervertebral implant comprising a spacer designed to be applied between two spinous processes of two vertebrae. The spacer comprises: two elements (10, 12) made of a first material, and each presenting a first end (10a, 12a) and a second end (10b, 12b), said first end (10a, 12a) being securable to a spinous process; and a connection piece (14) made of a second material of greater elastic deformability than said first material, said connection piece interconnecting said second ends (10b, 12b) of said two elements (10, 12) so that the stresses that are exerted on said two elements (10, 12) are damped, and said connection piece enabling said intervertebral implant to limit and brake the relative movements of said vertebrae.
Patent KR-20030014414-A (KR)
IPC: C07D405/04
Filed: 2001-06-28
Abstract: 본 발명은 4-퀴나졸린아민의 디토실레이트 염 및 이를 사용하여 이상 erbB 계 PTK 활성에 의해 특성결정화된 질환을 치료하는 방법에 관한 것이다.
Patent KR-20030063158-A (KR)
Title: 데이터 인터페이스 회로와 데이터 전송 방법
IPC: G06F3/00
Filed: 2003-01-16
Abstract: 단일 신호로부터 각각 생성되는 양의 위상 신호 및 그 반대 위상 신호를 포함하는 전압 신호가 입력되는 경우에 p-채널 MOS 트랜지스터(1A, 1B)는 교대로 온(on) 상태가 된다. 또한, 단일 신호로부터 각각 생성되는 양의 위상 신호 및 그 반대 위상 신호를 포함하는 전압 신호가 입력되는 경우에 n-채널 MOS 트랜지스터(4A, 4B)는 교대로 온(on) 상태가 된다. p-채널 MOS 트랜지스터(1A, 1B)가 온 상태가 되면 전송 라인(3A, 3B)으로 각각 전류를 공급한다. n-채널 MOS 트랜지스터(4A, 4B)가 온 상태가 되면 n-채널 MOS 트랜지스터(4A, 4B)는 전송 라인(3A, 3B)으로부터 공급된 전류를 접지부로 방전한다. 전류/전압 변환 회로(2)는 전송 라인(3A, 3B)을 통해 흐르는 전류를 전압 신호로 변환한다. 다른 전류/전압 변환 회로(5)는 다른 전송 라인(3A, 3B)으로 흐르는 전류를 전압 신호로 변환한다.
Patent KR-20040066543-A (KR)
Inventor: KIM GI CHEOL
IPC: H01L27/115
Filed: 2003-01-20
Abstract: PURPOSE: An NVM(non-volatile memory) device is provided to form a uniform notch in a control gate by making a part of the sidewall of the control gate surrounded by the wall of a dielectric and by using the wall of the dielectric as a mask. CONSTITUTION: Ions are implanted into both sides of the surface of a substrate(10) to form N+ regions for forming a source region and a drain region. A gate oxide layer(20) is formed on the substrate. The first conductor(30) is deposited on the gate oxide layer between both N+ regions. The second conductor(40) of a predetermined thickness is deposited on the side surface of the first conductor. The lower part of the second conductor is separated from the gate oxide layer by a predetermined height. A spacer(50) of a predetermined thickness is deposited on the side surface of the second conductor. The lower part of the spacer has the same height as the second conductor to form a notch between the gate oxide layer and the first conductor. An insulation oxide layer(60) of a predetermined thickness is formed on each main surface of the notch among the gate oxide layer, the second conductor and the spacer in the lower part of both sides of the first conductor. The third conductor(70) is deposited on the inner part of the insulation oxide layer.
Patent KR-20040068417-A (KR)
Inventor: KIM DAE HYEON
IPC: G09G3/296
Filed: 2003-01-25
Abstract: PURPOSE: A method for driving a plasma display panel is provided to remove false-contour noise by arranging consecutive frames having opposite brightness weights. CONSTITUTION: A first frame having a first brightness weight is provided. A second frame having a brightness weight opposite to the first brightness weight is provided. A third frame having a second brightness weight is provided. A fourth frame having a brightness weight opposite to the second brightness weight is provided. The first frame is provided when an n-th vertical synchronizing signal is inputted. The second frame is provided when an (n+1)-th vertical synchronizing signal is inputted. The third frame is provided when an (n+2)-th vertical synchronizing signal is inputted. The fourth frame is provided when an (n+3)-th vertical synchronizing signal is inputted.
Patent KR-20040069084-A (KR)
Inventor: JUNG DAE YEON
IPC: A62B23/02
Filed: 2003-01-28
Abstract: PURPOSE: A portable air respirator is provided to prevent a respiratory disease caused by a pollutant in air; to prevent an old people's or hypertensive's heart blood related disease caused by a cold air, by enabling a user to breath in the state of raising a temperature of the air from outside to a predetermined temperature and filtering the pollutant and water contained in the air. CONSTITUTION: The portable air respirator comprises a case(111) in which a number of guiding plates are arranged to alternate with one another to raise an air flowed from outside into an inside space at a predetermined temperature; an air filtering member(110) having a plurality of filters(112) for filtering the flowing air; and a respiratory member(130) being connected with an outlet of the case by an air sucking line and having a pair of a breathing hole(132) to be inserted into the nostrils.
Patent KR-20040069475-A (KR)
Inventor: JUN CHAN HO
IPC: F25D17/06
Filed: 2003-01-29
Abstract: PURPOSE: A direct cooling-type refrigerator is provided to uniformly maintain a temperature difference between the upper side and the lower side of the inside of a storage chamber and a temperature difference between the middle side and the edge side. CONSTITUTION: A direct cooling-type refrigerator comprises a body(1), a door(20), and a blowing unit. In the body, a thermal insulation material(8) is arranged between an inner casing(6) to which a storage chamber(4) is formed and an outer casing(2). The top of the storage chamber is open. Evaporation pipes(10), through which a refrigerant flows, are formed to the outside of the inner casing. The door opens and shuts the top of the body. The blowing unit is mounted on the body or the door. The blowing unit circulates the chill of the storage chamber to make the chill of the middle side of the storage chamber ascend and to make the chill of the edge side of the storage chamber descend.
Patent KR-20040070682-A (KR)
Inventor: PARK JONG GEUN
IPC: F01N3/035
Filed: 2003-02-04
Abstract: PURPOSE: An exhaust gas purifying system for a vehicle is provided to maintain the system conveniently, and to purify exhaust gas efficiently by connecting a catalytic unit for purifying exhaust gas to an end muffler and by detachably assembling a cartridge type filter unit with the catalytic unit. CONSTITUTION: An exhaust gas purifying system(30) is composed of a filter unit(31) purifying smoke discharged from an engine, and a catalytic unit(32) formed in the rear part of the filter unit to purify exhaust gas. A filter body(35) having an inlet(33) and an outlet(34) and a catalytic body(36) are formed in the filter unit and the catalytic unit to connect the filter unit and the catalytic unit and to detachably mount the exhaust pipe. Plural filter cartridges(40) are detachably mounted in the filter body, and composed of a filter containing groove(38) storing the filter purifying smoke and a cover(39) closing the filter. A catalyst(50) is embedded in the catalytic body to purify exhaust gas.
Patent KR-20040072253-A (KR)
Inventor: CHOI SEONG CHEOL
IPC: H04W24/00
Filed: 2003-02-10
Abstract: PURPOSE: An IUB interface device between a base station controller and a base station, and a method thereof are provided to maximize the efficiency of E1 link resources on an IUB(Interface between an RNC and a node B). CONSTITUTION: A cell multiplexer and demultiplexer(311) converts inputted interprocessor communication traffic into ATM(Asynchronous Transfer Mode) cells, and outputs the converted ATM cells to a specific master port of an IMA(Inverse Multiplexing on ATM)(400). The IMA(400) has a plurality of ports connected with E1 framers(321-336), and groups the plurality of ports into a plurality of groups. Any one port of each group is designated as a master port and the ATM cells inputted through master ports of the specific first group are divided by the number of the ports of the first group. The IMA(400) outputs the divided ATM cells to the ports of the first group respectively.
Patent KR-20040074480-A (KR)
Inventor: JUNG SU BOK
IPC: A23L11/00
Filed: 2003-02-19
Abstract: PURPOSE: A method of producing red bean jam for walnut cake capable of reducing the number and time of agitation for reducing astringency and/or removing tannic acid is provided. It enables effective reduction of astringency from red bean jam without loss of nutrients. CONSTITUTION: A red bean, green bean or cowpea(Vigna sinensis) is immersed in water for a predetermined time to remove tannic acid. Thereafter, it is steamed, ground and added with water to separate red bean mixture from skin. The red bean mixture is repeatedly agitated in a vessel containing water to remove tannic acid and then compressed to remove water. Then, the dried red bean mixture is heated with sugar water while agitation to give red bean jam. In the first process for removal of tannic acid, 5% by weight of alcohol can be added to water.
Patent KR-20040076332-A (KR)
Inventor: JUNG UI JIN
IPC: G02F1/1368
Filed: 2003-02-25
Abstract: PURPOSE: A silicon crystallization system and a method for crystallizing silicon are provided to form various shapes of laser beams by using a plurality of optic systems. CONSTITUTION: A laser generator(10) is used for generating laser beams. An optic system(20) is used for controlling the laser beams of the laser generator. An insulating substrate is loaded on a stage(30). An amorphous silicon layer is formed on the insulating substrate. The amorphous silicon layer of the insulating substrate is crystallized as a polycrystalline silicon layer by the laser beams. The optic system includes the first optic system(21) for forming the horizontally short and vertically long shape of the laser beam and the second optic system(22) for forming the horizontally long and vertically short shape of the laser beam.
Patent KR-20040076775-A (KR)
Inventor: JANG GI WAN
IPC: C23C16/04
Filed: 2003-02-26
Abstract: PURPOSE: A method for producing optical fiber preforms by modified chemical vapor deposition(MCVD) including a preheating process for increasing the dehydration efficiency for removal of hydroxyl ions. CONSTITUTION: The preheating process of MCVD is characterized by heating dehydration gas supplied into a silica-deposited tube(24) to 600-1200deg.C with a preheater in advance to keep the temperature inside the tube over 500deg.C, wherein the position for heating dehydration gas is the front end part of the tube. The preheating equipment comprises the parts of: a hollow cylindrical tube(24) capable of rotating, between a main block(22) and a terminal block(23); a torch(26), positioned under the tube, moving along a torch carrier line(28) paralleled to the tube and the heat of the torch is controlled; a gas inflow line(30) into which reaction gases(Si, Ge) and dehydration gases(He, Cl2, O2, etc.) flow; a gas discharge line(32); a preheater(40) set on the front part of the tube to which the gas flows, wherein the preheater heats the dehydration gas passing through the front part of the tube so that the temperature inside the tube generally rises and the dehydration reaction is homogeneously processed over the tube; a heatproof plate(42) between preheater and main block for protecting the main block.
Patent KR-20040078947-A (KR)
Inventor: LEE IN HO
IPC: H04N7/01
Filed: 2003-03-05
Abstract: PURPOSE: A memory access method for image pivot is provided to carry out an image pivot function without affecting a display system through efficient memory access. CONSTITUTION: A data rearrangement process of reading data corresponding to one row of a macro-block from a memory to a FIFO(First Input First Output) and then writing data of the FIFO in the memory word by word while skipping data corresponding to a memory skip value is repeated for every row of the macro-block. The data stored in the memory, which corresponds to the memory skip value, is sequentially read to the FIFO. Only pixels having the same bit field are selected from the data in the FIFO and stored in the memory in a raster manner using a line selection signal. When data with respect to one macro-block is finally stored in the memory. The data stored in the memory is read in the raster manner and displayed.
Patent KR-20040081290-A (KR)
Inventor: KIM KI JOO
IPC: F24F6/00
Filed: 2003-03-14
Abstract: PURPOSE: A liquid storage tank is provided to fill liquid in the storage tank inserted to a body without separating, inserting, and turning the storage tank for the body and to quickly open or close the storage tank by rotating an opening and closing cap at the constant angle. CONSTITUTION: Inlet and outlet ports(202,204) face each other on the upside and lower side of a liquid storage tank(200) and the inlet port is opened or closed to the rotational direction of an opening and closing cap fixed with an upper closing member. A push rod(250) vertically lifted up and down and elastically supported upward while external force is not applied is installed in the center of the inlet and outlet ports and a lower closing member is fixed to the lower end of the push rod. The outlet port is contacted to the lower closing member and closed with airtightness while the external force is not applied to the push rod. The upper end of the push rod is compressed by the cap in closing the inlet port and the outlet port is opened as the lower closing member lifts down.
Patent KR-20040081663-A (KR)
Inventor: JANG DAE JONG
IPC: G11B7/22
Filed: 2003-03-15
Abstract: PURPOSE: An optical pickup actuator is provided to dispose at least one pair of focus coils, to selectively perform a driving process in a focus direction and a tilt direction, and to easily carry out a tilt control as well as focusing/tracking controls, thereby improving control precision. CONSTITUTION: A holder(30) is disposed on a base(40). A blade(20) mounted with an objective lens(10) is movably supported on the holder(30) by plural wires(70). An electronic driving unit drives the blade(20) in a focusing direction and a tracking direction, and controls the position of the objective lens(10). The electronic driving unit consists of one pair of magnets(50) installed on the base(40) so as to be faced together, and a pattern coil(60) installed on the blade(20) so as to be located between the one pair of the magnets(50).
Patent KR-20040082465-A (KR)
Inventor: LEE SEOK BU
IPC: B21D53/88
Filed: 2003-03-19
Abstract: PURPOSE: A manufacturing method of housing for car air conditioner compressors is provided which is capable of substantially improving production cost and productivity of the housing for compressors by forming a steel sheet, thereby producing the housing for compressors. CONSTITUTION: The method comprises a steel sheet cutting step; a rolling step of forming the steel sheet cut through the steel sheet cutting step in a cylindrical shape; a joint part bonding step of bonding a joint part of the steel sheet formed in a cylindrical shape by the rolling step; a forming step of forming the joint part bonded to cylindrical steel sheet in a housing shape; and an inner diameter precision processing step of finally processing inner diameter of the housing(200) formed by the forming step, wherein the forming step comprises a bulging process of forming an expansion part(120) on the housing, and wherein the forming step comprises a necking process of forming a contraction part(130) on the housing.
Patent KR-20040074207-A (KR)
Inventor: WOO JUNG TAEK
IPC: B60N3/10
Filed: 2003-03-27
Abstract: PURPOSE: A cup holder for a vehicle is provided to stably keep cups in the cup holder regardless of stopping or traveling states of the vehicle by horizontally holding the cups all the time with movements of frames free from shock transmitted by external movements of the vehicle body. CONSTITUTION: A cup holder(A) for a vehicle is composed of a body(10) including a combining unit(11) formed at the front upper part to have an opened upside, a sill unit at the lower side, and combining holes(12) at both sides just above the sill unit; a connecting unit(20) comprising a connecting bar(21) having hinge pins(21a) formed at rear both sides and movably joined with the combining hole and a support bar(22) extended to front both sides and formed with a fitting hole(22a) at the front end; an outer frame(30) having shaft projections(32) formed at left and right outsides and combined with the fitting hole of the support bar to move back and forth and a support piece(31) having combining holes(31a) crossing the shaft projections at the lower front and rear sides; and an inner frame(40) having shaft projections(42) formed in the front and rear sides and joined with the combining holes and moving left and right.
Patent KR-20040086933-A (KR)
Inventor: SEO BO YEONG
IPC: G11C16/10
Filed: 2003-04-03
Abstract: PURPOSE: A non-volatile semiconductor memory device for reducing the size of a memory cell by improving the program operation method is provided to reduce the channel length by reducing the voltage of bitline with maintaining the voltage between the sense line and the bitline constant. CONSTITUTION: A non-volatile semiconductor memory device for reducing the size of a memory cell by improving the program operation method includes at least one memory cell(100), a first bias circuit(200) and a second bias circuit(300). The memory cell(100) is provided with a storage transistor(110) and a selection transistor(120). The control gate of the storage transistor(110) is connected to the sense line(S/L) and the gate of the selection transistor(120) is connected to the word line(W/L). The first bias circuit(200) supplies a negative high voltage and a first positive high voltage to the sense line(S/L) and the word line(W/L), respectively, during the program operation. And, the second bias circuit(300) supplies a second positive high voltage to the bitline of the selection transistor(120) during the program operation.