baber/WOPTO huggingface dataset:
Patent KR-20040045578-A (KR)
Title: Method of forming spacer for semiconductor device
Inventor: CHO HEUNG JAE
IPC: H01L29/78
Filed: 2002-11-25
Abstract: PURPOSE: A method for forming a spacer of a semiconductor device is provided to improve the deposition speed of an Si-O/Si-N thin film and effectively prevent the resistance increase of a gate by forming a multilayer dielectric using an ALD(Atomic Layer Deposition) at a relatively low temperature. CONSTITUTION: A predetermined pattern is formed on a semiconductor substrate(10). The first and second insulation thin film are alternately deposited on the entire surface of the semiconductor substrate to a predetermined thickness by carrying out an ALD for forming a multilayer dielectric. A spacer(16A) is formed at both sidewalls of the predetermined pattern by selectively etching the multilayer dielectric. Preferably, the multilayer dielectric is formed by in-situ. Preferably, the temperature of the semiconductor substrate is in the range of 100-600 °C while carrying out the ALD.
Patent KR-20040051681-A (KR)
Title: Wastewater disposal system
Inventor: HAN JAE JUN
IPC: C02F3/00
Filed: 2002-12-11
Abstract: PURPOSE: Provided is a wastewater treatment system being capable of separating sediment and suspended solid by generating vortex without power and transferring the sediment and suspended solid to respective treatment zone, thereby rapidly treating wastewater. CONSTITUTION: The system comprises a first and a second treatment tank(10,10'), a first and a second wastewater inlet(11,11') provided to a side of the corresponding treatment tanks(10,10'), treated water outlets(12,12') provided to an upper end portion of the corresponding treatment tanks(10,10'), suspended solid transfer conveyers(13,13') with a plurality of suspended solid load panels(14,14') for transferring suspended solid passing out the respective outlets(12,12'), a final treatment zone(20) for treating the suspended solid transferred by the conveyers(13,13'), a sediment transfer unit(30) for transferring the sediment drained from a lower part of the treatment tanks(10,10;), a dehydrator(40) for dehydrating the sediment, i,e, sludge, a dryer(50) for drying the sediment, a first compulsive transfer unit(60) for compulsively transferring wastewater output from the sediment transfer unit(30) to the first treatment tank(10), a second compulsive transfer unit(60') for transferring wastewater output from the dehydrator(40) to the sediment transfer unit(30), and a washing unit(70) with a plurality of nozzles(71) for washing the sludge supplied from the second treatment tank(10').
Patent KR-20040019831-A (KR)
Title: United Microphone with Camera and Videoke system comprising the same
Inventor: YOO YEONG GI
IPC: H04N5/225
Filed: 2002-12-24
Abstract: PURPOSE: A camera built-in type microphone and a videoke system including the same are provided to mount a camera and a microphone integrally. CONSTITUTION: A camera built-in type microphone(10) includes a knob unit(the second case)(30) and a sound absorption unit(the first case)(20) mounted at one end of the knob unit. A lens unit(100) is mounted at the internal center of the first case(20). A CCD(Charge Coupled Device) camera mounted in the second case(30) is arranged at the lower portion of the lens unit(100). A microphone unit(300) is arranged in a proper portion of the second case(30). A lamp is mounted in a supporting unit which is extended from the second case(30) at the circumference of the lens unit(100). The first switch(510) which controlling a power being applied to the CCD camera, the microphone unit(300), and the lamp is mounted at one side of the second case(30). The second switch(520) which controls a connection of a video signal being outputted in the CCD camera to an exterior is mounted at one side of the second case(30).
Patent KR-20040058917-A (KR)
Title: Lithium secondary battery having a protective mean
Inventor: DO GYEONG BU
IPC: H01M10/058
Filed: 2002-12-27
Abstract: PURPOSE: A lithium secondary battery having protection means is provided, to prevent the thermal damage of a safety vent for improving the safety of a battery. CONSTITUTION: The lithium secondary battery(20) comprises a can(21) which is made of metal and comprises a positive electrode plate, a separator and a negative electrode plate in turns; a protection plate(280) which is fixed to the outer face of the can; and a protection cladding material(290) which is joined to the exterior of the protection plate, is connected electrically with the protection device by a lead, and is made of metal other than that of the protection plate. Preferably a safety vent(29) is formed in the place corresponding to the protection plate(280), the protection plate covers completely the safety vent, and the safety vent is broken primarily in case of the increase of internal pressure.
Patent KR-20040059900-A (KR)
Inventor: PARK CHEOL SU
IPC: H01L21/283
Filed: 2002-12-30
Abstract: PURPOSE: A method for forming an ultra-fine contact plug of a semiconductor device is provided to prevent short between the second conductor and a contact plug by using a hard mask spacer. CONSTITUTION: The first planarization insulating layer(10), the first conductor(20), the second planarization insulating layer(30), the second conductor(40), the third planarization insulating layer(50) and a nitride layer as a hard mask are sequentially formed on a silicon substrate. The nitride layer and the third planarization insulating layer are selectively etched to form a contact forming region by using a photoresist pattern as an etching mask. A hard mask spacer(80) for reducing the size of contact is formed at sidewalls of the contact forming region. The first conductor is partially exposed by forming a contact hole under the contact forming region using the spacer as an etching mask. A contact plug(90) is entirely filled in the contact hole and the contact forming region.
Patent KR-20020019956-A (KR)
IPC: G03F1/00
Filed: 2001-06-01
Abstract: 본 발명은 이형성을 갖는 지지체의 어느 한쪽의 표면상에, 점착성을 갖는 미경화의 사진유제면 보호층을 설치한 전사시트로서, 상기 미경화의 사진유제면 보호층이 친수성기를 갖는 단관능 (메타)아크릴레이트 및 다관능 (메타)아크릴레이트를 포함하는 전리방사선 경화형 수지 조성물을 함유하는 것을 특징으로 하는 사진유제면 보호층 전사시트의 발명이다. 상기 시트의 접착층은 내상성 뿐만 아니라 유제면과의 밀착성이 우수하고, 게다가 내용제성도 우수하므로, 특히 포토마스크의 유제면의 보호층으로 하는 것에 의해, 장기간 안정하게 사용할 수 있는 포토마스크가 얻어진다.
Patent KR-20020027556-A (KR)
Title: Silane endcapped moisture curable compositions
IPC: C09K3/10
Filed: 2000-08-15
Abstract: Moisture curable polymers having terminal or pendant silyl groups of the formula:where R1 represents an alkyl group having 1 to 10 carbon atoms, optionally interupted with one or more ether oxygen atoms, or a group of the formulaR2 represents a C1 to C6 alkoxy group or a C6-C8 aryloxy group;R3 represents an alkyl or an aryl group;T represents a branched or cyclic alkylene radical of 4 to 10 carbons, which may be optionally interrupted by one or more ether oxygen atoms;X is an alkylene group of 3-10 carbon atoms, which may be linear, branched or cyclic;and a is 0, 1 or 2, may be prepared by reacting (A) a compound having at least two isocyanate groups thereon with (B) a silane of formula (3):Moisture cured sealant formulations formulated with the polymers exhibit improved thermal stability, elongation, and tear resistance.
Patent KR-20020030122-A (KR)
Title: Flip chip package, circuit board thereof and packaging method thereof
IPC: H05K1/18
Filed: 2001-07-18
Abstract: According to the present invention, when a semiconductor element having protruding electrodes formed thereon is connected to a circuit board via conductive resin, stable connection is made even when an electrode pitch is small on the semiconductor element. On semiconductor element package regions on the circuit board, a paste electrode material containing photopolymerizable materials is printed to form a film having a prescribed thickness, and this electrode material film is baked after exposure and development thereof so as to obtain circuit electrodes having edges warped in a direction of going apart from the circuit board surface. Then, the protruding electrodes and the concave surfaces of the circuit electrodes are brought in abutment with each other and connected via the conductive resin which surrounds the abutments between the respective electrodes and is held on the concave surfaces of the circuit electrodes. With this arrangement, the concave surfaces of the circuit electrodes act as saucers and prevent the conductive resin from being squeezed out, thereby eliminating possible occurrence of short circuits.
Patent KR-20020048417-A (KR)
Title: Resin composition comprising inorganic particles and polymerizable phosphates and the products prepared therefrom
IPC: C09D11/104
Filed: 2000-09-12
Abstract: A resin composition comprising: (A) particles prepared by bonding at least one oxide of an element selected from the group consisting of silicon, aluminum, zirconium, titanium, zinc, germanium, indium, tin, antimony, and cerium, and an organic compound which includes a polymerizable unsaturated group, (B) a polymerizable acid phosphate and (C) a compound other than the compound (B) having at least two polymerizable unsaturated groups in the molecule.
Patent KR-20020059718-A (KR)
IPC: B60R21/16
Filed: 2000-11-09
Abstract: 본 발명은 충돌사고시 차량(10)내의 탑승자(14)를 완충시키기 위한 에어백 조립체에 관한 것이다. 상기 에어백 조립체는 팽창기와 사전에 정해진 차량조건들의 발생시 팽창가스를 배출할 수 있는 팽창기(40,40',140,140')와, 상기 팽창기(40,40',140,140')와 유체로 연결되어 있는 에어백쿠션(20,20',120,120')을 포함하고 있어서, 팽창기(40,40',140,140')로부터 팽창가스의 배출시 에어백쿠션(20,20',120,120')은 탑승자(14)와 마주보는 쪽에 있는 전개위치로부터 전개된 상태로 팽창된다. 하나 또는 그 이상의 형상억제 속박요소들(30,30',130,130')은 상기 형상억제 속박요소(30,30',130,130')의 작동길이를 줄이기위해 에어백 쿠션이 있는 위치들로부터 앵커구조물(48,48',148,148')까지 뻗어있다. 탑승자조건들을 측정하는 센서(22,24,26,27)로부터의 신호에 응답하여 작동가능한 작동장치(36,36',136)는 상기 속박요소(30,30',130,130')를 상기 앵커구조물(48,48',148,148')로부터 풀어내는데 사용되어 사전에 결정된 탑승자 조건들의 발생시, 상기 에어백쿠션(20,20';120,120')의 작동형상을 연장시킨다.
Patent KR-20020049052-A (KR)
IPC: G06Q30/06
Filed: 2000-11-15
Abstract: 본 발명은 운송 및 이동 상태가 규제된 품목의 양도를 촉진하는 서비스를 제공한다.  이 서비스는 소유자, 고객 및 규제된 품목의 전송 및 운송이 허가된 소매상 및 도매상과 같은 중간상 사이의 전자 통신을 촉진한다.  이러한 규제된 품목을 판매하고자 하는 소유자는 그들의 규제된 품목을 광고 사이트, 경매 사이트 또는 범용 리스팅 사이트 상에서 판촉할 수 있다.  또한, 소유자는 서비스 제공자를 통하여 개인 거래를 행할 수 있다.  소유자와 고객 사이에서 규제된 품목에 대한 판매의 협상시, 서비스 제공자는 소매상 및 도매상과 전자식으로 통신하여 소유자로부터 요금 지불의 댓가로 고객에게 규제된 품목의 물리적인 양도 수속을 행할 수 있다.
Patent KR-20020064924-A (KR)
IPC: G06Q10/00
Filed: 2001-09-26
Abstract: 전자 캘린더 시스템내의 메시지 및 데드라인 정보는 각각의 입력된 메시지에 대해, 데드라인을 향한 시간의 진행과 함께 조정되는, 나머지 시간 정보를 얻도록 기입사항의 시간과 데드라인사이의 시간 차이의 계산에 의해 조직된다. 나머지 시간에 의존하여 우선순위가 디스플레이된 메시지들 및/또는 데드라인들에 주어지는, 조직된 디스플레이 제시 스케줄을 제공하도록, 나머지 시간 정보는 나머지 시간의 조정에 의존하여 메시지 및/또는 데드라인 정보의 적어도 하나의 디스플레이 포맷 속성을 변경함으로써 가시화된다.
Patent KR-20020067565-A (KR)
Title: New modulators of dopamine neurotransmission
IPC: A61P25/18
Filed: 2000-12-22
Abstract: New substituted 4-(phenyl-N-alkyl)-piperidine compounds of Formula 1: <CHEM> wherein X is CH; R1 is CF3, OSO2CF3, OSO2CH3, SOR7, SO2R7, COR7, CN, OR3, NO2, CONHR3, 3-thiophene, 2-thiophene, 3-furane, 2-furane, F, Cl, Br, or I; R2 is F, Cl, Br, I, CN, CF3, CH3, OCH3, OH, and NH2; R3 and R4 are H; R5 is a C1-C4 alkyl, an allyl, CH2SCH3, CH2CH2OCH3, CH2CH2CH2F, CH2CF3, 3,3,3-trifluoropropyl, 4,4,4-trifluorobutyl, or -(CH2)-R6; R6 is a C3-C6 cycloalkyl, 2-tetrahydrofurane, or 3-tetrahydrofurane; R7 is a C1-C3 alkyl, CF3, or N(R4)2, and pharmaceutically acceptable salts thereof are disclosed. <??>Also pharmaceutical compositions comprising the above compounds and methods wherein the above compounds are used for treatment of disorders in the central nervous system are disclosed.
Patent KR-20020081415-A (KR)
Title: 흰개미 박멸방법
IPC: A01N63/12
Filed: 2001-03-08
Abstract: 본 발명의 흰개미 박멸방법은 곤충성장 조절제 또는 슬로액팅 살충제와 함께 곤충발병 선충을 사용하는 것을 포함하며, 단독으로 곤충발병 선충 및 곤충성장 조절제 또는 슬로액팅 살충제 각각을 사용하는 경우에 비해 살충효과가 강화되고,  곤충성장 조절제 또는 슬로액팅 살충제와 함께 곤충발병 선충을 함유하는 유인 스테이션을 포함하며,  본 발명에 의하면 환경에 해로운 화학제의 방출을 억제할 수 있고, 본 발명은 인간 및 가축에 독성이 없으며, 실내 또는 실외에서의 흰개미 박멸에 유용하다.
Patent KR-20020086725-A (KR)
IPC: D01D4/02
Filed: 2001-03-27
Abstract: Polyethylene solutions are extruded through a multi-orifice spinneret into a cross-flow gas stream to form a fluid product. The fluid product is stretched at a temperature at which a gel will form at a stretch ratio of at least 5:1 over a length of less than about 25 mm with the cross-flow gas stream velocity at less than about 3m/min. The fluid product is quenched in a quench bath consisting of an immiscible liquid to form a gel. The gel is stretched. The solvent is removed from the gel to form a xerogel and the xerogel product is stretched in at least two stages to produce a polyethylene yarn characterised by a tenacity of at least 35 g/d, a modulus of at least 1600 g/d and a work to break of at least 65 J/g. The yarn is further characterised by having greater than about 60% of a high strain orthorhombic crystalline component and, optionally, a monoclinic crystalline component greater than about 2% of the crystalline content. Composite panels made with these yarns exhibit excellent ballistic resistance, eg. SEAC of 300J-m 2 /Kg or higher against .38 caliber bullets using test procedure NILECJ-STD-0101.01. A ballistic resistant composite panel is provided comprising a polyethylene multi-filament yarn having a tenacity of at least about 35 g/d, a modulus of at least 1600 g/d, a work-to-break of at least about 65 J/g wherein the yarn has greater than about 60% of a high strain orthorhombic crystalline component and the yarn has a monoclinic crystalline component greater than about 2% of the crystalline content.
Patent KR-20020091183-A (KR)
Title: 무선통신 중계기 내장형 차량용 미러장치
IPC: H04L12/56
Filed: 2001-12-27
Abstract: 본 발명에서는 예컨대 도 1에 나타내는 바와 같이 차밖 또는 차안에서 발신된 특정한 전파신호를 수신하는 수신부(12), 이 수신부(12)에서 수신된 신호를 증폭하는 증폭부(13) 및 이 증폭부(13)에서 증폭된 신호를 차밖 또는 차안으로 발신하기 위한 발신부(14)로 이루어진 무선통신 중계기(10)를, 차량에 설치되는 미러장치 내부에 장착하고, 이 무선통신 중계기(10)를 차안의 전자기기를 연결한 네트워크의 일부로 하였다.     그럼으로써, 자동차 안팎에서의 각종 정보통신을 원활하게 행할 수 있고, 또 미약한 전파여도 상호 통신을 가능하게 할 수 있다.
Patent KR-20040029943-A (KR)
Title: Tunable Devices Incorporating BiCu3Ti3FeO12
IPC: H01B1/00
Filed: 2001-05-03
Abstract: This invention provides the novel dielectric BiCu<SUB>3</SUB>Ti<SUB>3</SUB>FeO<SUB>12</SUB>. BiCu<SUB>3</SUB>Ti<SUB>3</SUB>FeO<SUB>12 </SUB>provides good dielectric tunability and low loss over a frequency range of from 10 kHz to 10 MHz and is especially useful in tunable devices such as phase shifters, matching networks, oscillators, filters, resonators, and antennas comprising interdigital and trilayer capacitors, coplanar waveguides and microstrips.
Patent KR-20030001473-A (KR)
Title: Bmf face oil remover film
IPC: A47K7/00
Filed: 2001-04-13
Abstract: There is provided a dispensable package of oil absorbing wipes in the form of a plurality of discrete sheets comprising a consolidated melt-blown web of thermoplastic fibers. The web has an opacity value of about 65 or less when oil free, and changes transparency by at least 30 when loaded with about 6 grams or less of oil per square centimeter. The wipes are contained in a package having at least one access opening allowing a user to grasp a single discrete sheet of wipe material.
Patent KR-20020097275-A (KR)
Title: 탄성 장력 및(또는) 연신의 통합 대역을 갖는 흡수 용품
IPC: A61F13/15
Filed: 2001-05-15
Abstract: 일회용 가먼트는 착용자 상에서 다리, 팔 또는 허리 등을 위한 하나 이상의 개구부들 주위의 가스켓 (gasket)을 포함한다.  가먼트의 적어도 일부는 재료의 형성 동안 통합된, 동일한 재료 내에 고 및 저 탄성 장력 및(또는) 고 및 저 연신의 대역들을 포함하는 표적화 탄성 재료를 포함한다.  표적화 탄성 재료는 적어도 하나의 고 장력 및(또는) 저 연신 대역이 적어도 하나의 가먼트 개구부와 일렬이고, 적어도 하나의 저 장력 및(또는) 고 연신 대역이 고 장력 및(또는) 저 연신 대역의 안쪽으로 일렬이어서, 개별적으로 제조되어 부착된 탄성 밴드를 필요로하지 않으면서 가스켓으로서 기능할 수 있도록 배치된다.
Patent KR-20030007756-A (KR)
IPC: G09F9/30
Filed: 2002-04-02
Abstract: A matrix array device, for example, an active matrix display device, image sensor, or the like, comprises a matrix circuit ( 12, 14, 16, 18 ) carried on a flexible substrate ( 20 ) which circuit includes an array of semiconductor devices ( 12 ), such as TFTs, occupying discrete areas. Selected regions of the substrate ( 20 ) away from the semiconductor devices ( 12 ) are formed as areas of weakness to encourage flexing of the substrate to occur preferentially at those regions upon bending of the device and so reduce the risk of damage to the semiconductor devices. The regions, for example, may comprise lines of weakness ( 50, 52 ) extending between the semiconductor devices and may be formed by localized thinning of the substrate or by treating the substrate material to modify its stiffness at predetermined areas.
Patent KR-20030024695-A (KR)
IPC: B41J2/17
Filed: 2000-06-30
Abstract: 프린트엔진(500)용 방출기구(576)는, 유체를 각각의 유체원(source)으로부터 프린트엔진(500)의 프린트헤드(516)로 공급하기 위한 복수의 유체도관들(514)을 지지하는 지지부재(510)로서, 상기 유체도관들 중 하나는 공기를 프린트헤드(516)에 공급하기 위한 공기공급도관인 지지부재(510)를 포함한다.  씰(544)은, 제1 위치에 있을 때 상기 유체도관(514)의 유입 개구를 씰링하기 위해, 상기 지지부재(510)에 대하여 상대변위가 가능하게 배치된다.  상기 씰(544)은, 제2 위치로의 변위가 가능하여 유체도관(514)의 개구가 노출됨으로써, 각각의 유체원과 유체 소통되도록 유체도관(514)을 위치시킨다.  상기 씰을 그 제1 위치로 강제하기 위해, 코일스프링(588)이 상기 씰에 작용한다.
Patent KR-20040062735-A (KR)
Inventor: CHO TAE HUI
IPC: G06F15/00
Filed: 2003-01-03
Abstract: PURPOSE: A method for diagnosing an information system is provided to produce a general improvement plan for guaranteeing the efficiency and the security of the information system by diagnosing a general status of the information system systematically analyzing the components forming the information system. CONSTITUTION: The status data for each component of the information system is collected. A security state of the information system is judged for each component based on the collected status data(S1). A vulnerable point of each component is analyzed(S3). A risk factor of the information system is analyzed based on the status data and the vulnerability of the information system(S5). A protection plan to reduce a risk level for the risk factor corresponding to each recognized component of the information system is worked out(S6).
Patent KR-20040064423-A (KR)
Inventor: KIM BYEONG GIL
IPC: B09B3/00
Filed: 2003-01-13
Abstract: PURPOSE: A waste disposal equipment is provided which improves productivity and manufactures moldings as more excellent solid fuel by constructing the whole process from injection of collected waste to manufacturing of final moldings as one line, thereby enabling continuous treatment of waste. CONSTITUTION: In a waste disposal equipment comprising an injection part(100) for injecting waste, a metal separator(200) for separating metallic materials contained in waste from waste, crushers(300a,300b) for crushing the waste, a dryer(400) for drying the crushed waste, a wind sorter(500) for separating combustible and incombustible and a molding machine(600) for extrusion molding the waste so that solid fuel is molded from the waste, the waste disposal equipment comprises a bypass pipeline(450) for transferring waste to the wind power sorter without passing through the dryer according to moisture content of waste crushed by the crushers; and the molding machine for discharging the cut moldings by cutting moldings lengthened to a certain length after extrusion molding the waste passing through the whole treatment processes using a plurality of extrusion ports formed on the outer surface of a circular ring shaped extrusion die.
Patent KR-20030011129-A (KR)
Inventor: LEE KYUNG HEE
IPC: A01D43/00
Filed: 2003-01-13
Abstract: PURPOSE: An apparatus for reaping and threshing leguminous plants is provided to continuously proceed every procedures ranging from the reaping of bean stems to the transportation and threshing. CONSTITUTION: A reaping section(10) is provided at the front end of the apparatus and harvests bean stems. A transportation section(20) has a communicated structure for guiding and transporting the bean stems harvested by the reaping section(10) to the rear end side through an inlet. A threshing section(30) performs a threshing work for separating and sorting chaffs and beans from the bean stems transported by the transporting section(20).
Patent KR-20040067042-A (KR)
Inventor: CHO WAN GU
IPC: A61Q17/00
Filed: 2003-01-21
Abstract: PURPOSE: An anti-inflammatory cosmetic composition containing herb medicines is provided, which composition inhibits cyclooxygenase and inflammation, and does not result in side-effects such as cell toxicity, allergy, skin stimulation and human body stimulation. CONSTITUTION: The anti-inflammatory cosmetic composition contains 0.1 to 30.0 wt.% of extracts of herb medicines including Polygonatum stenophyllum MAX., Acanthopanax sessiliflorus SEEM., Asparagus cochinchinensis MERR. and Polygonum multiflorum Thunberg, wherein the extracts of herb medicines are prepared by using solvent such as butylene glycol and water; and the anti-inflammatory cosmetic composition has a formulation selected from cosmetic water, essence, lotion, cream, gel or ointment.
Patent KR-20040067073-A (KR)
Inventor: SIM JAE GWAN
IPC: E05B83/40
Filed: 2003-01-21
Abstract: PURPOSE: A sliding door handle of a vehicle is provided to operate a sliding door and a handle to the same direction by installing a dual shaft at a housing. CONSTITUTION: A sliding door handle of a vehicle includes a housing and a handle. The housing(10) is installed on an external panel of a door. The handle(20) is coupled to the housing by using a hinge. A plurality of combination holes(21) are formed at both sides of the handle. A plurality of sliding members(30) are formed under both sides of the handle. A plurality of hinge shafts(41) are installed at both sides of the housing. A dual shaft member(40) is installed at a lower side of the handle. The dual shaft member includes a support bar(42).
Patent KR-20040068683-A (KR)
Inventor: KIM HYEONG JUN
IPC: B21K1/02
Filed: 2003-01-27
Abstract: PURPOSE: A corrugating roll for forming corrugated cardboard is provided in which depth of hardening layer is uniformly formed from the surface to obtain high hardness and high toughness and suppress abrasion phenomena of the corrugating roll at the same time, and a method for manufacturing the same is provided. CONSTITUTION: The corrugating roll(100) comprises a welding overlayer(120) having a certain thickness formed by welding a certain welding material onto the surface of forged roll(110); and a thermal spray coating layer(130) formed on the valley(120a) and mountain(120b) after forming valley and mountain on the welding overlayer, wherein the welding overlayer is constructed in a two layer structure comprising a build-up layer(121) having thickness of 2 to 3 mm formed on the surface of the roll by laying up first welding material and a hardening layer(122) having thickness of 3 to 10 mm formed on the build-up layer by laying up any one welding material selected from second welding material and third welding material on the build-up layer, wherein the first welding material comprises 0.1 to 0.2 wt.% of C, 0.1 wt.% or less of Si, 1.7 to 2.2 wt.% of Mn, 0.03 wt.% or less of P, 0.03 wt.% or less of S, 0.35 wt.% or less of Cu and a balance of other materials, wherein the second welding material comprises 0.3 to 0.4 wt.% of C, 0.5 to 0.7 wt.% of Si, 2.1 to 2.4 wt.% of Mn, 8.0 to 8.5 wt.% of Cr, 4.4 to 4.8 wt.% of Mo, 1.4 to 1.8 wt.% of W, 0.3 to 0.6 wt.% of V and a balance of other materials, wherein the third welding material comprises 0.3 to 0.4 wt.% of C, 0.35 to 0.6 wt.% of Si, 1.2 to 1.4 wt.% of Mn, 5.9 to 6.2 wt.% of Cr, 3.7 to 4.0 wt.% of Mo, 0.03 wt.% or less of P, 0.3 wt.% or less of S and a balance of other materials, wherein the welding materials are mixed with a certain flux so that the mixture is welded onto the surface of the roll during welding.