baber/WOPTO huggingface dataset:
Patent KR-20030054946-A (KR)
Title: A method for manufacturing the dual phase carbon steel wire by using controlled rolling and rapid cooling
Inventor: CHO HUI JEONG
IPC: C21D8/06
Filed: 2001-12-26
Abstract: PURPOSE: A method for manufacturing dual phase carbon steel wire suitable for use as automobile bolts by using controlled rolling and rapid cooling is provided. CONSTITUTION: The method includes the steps of reheating a steel billet comprising C 0.06 to 0.15 wt.%, Si 0.7 to 1.2 wt.%, Mn 1.5 to 1.6 wt.%, a balance of Fe and incidental impurities at 1000 to 1100°C, followed by rough rolling and process rolling; cooling the rolled steel wire to 750 to 850°C; finish hot rolling the steel wire over metastable austenite temperature range, followed by coiling; cooling the steel wire on cooling conveyer for 1 to 30 sec in order to microstructure of the steel wire from austenite to ferrite by 70 to 95%; and rapid cooling the steel wire in order to transform 5 to 30 % of retained austenite to martensite.
Patent KR-20030056955-A (KR)
Title: Device for locking door hinge for microwave oven
Inventor: YEO TAE HONG
IPC: F24C15/02
Filed: 2001-12-28
Abstract: PURPOSE: A door hinge mounting device is provided to allow for ease of assembly by forming an insert member integrally with the choke cover, while allowing hinges to be firmly coupled. CONSTITUTION: A choke cover(40) is coupled to the surface of a door frame(50), and the choke cover has a mounting space(41) formed at the upper and lower corners of the choke cover so as to allow a hinge plate(32) of a main body(30) to be accommodated in the mounting space. A box type insert member(42) to be inserted beneath the hinge plate in the mounting space is formed integrally with the choke cover. The insert member has a bottom surface where a coupling hole(46) to be coupled with a coupling protrusion(52) of a door frame(50) is formed. A wing(44) having an outer surface contacting the inner surface of the door frame is formed integrally with the outer surface of the insert member.
Patent KR-20030057867-A (KR)
Title: Automotive Rear Bumper with Reinforced Upper Portion
Inventor: JANG HUN
IPC: B60R19/04
Filed: 2001-12-29
Abstract: PURPOSE: A rear bumper for reinforcing the upper part in a vehicle is provided to support the load applied from a passenger or articles in loading or unloading articles or getting on and off by reinforcing the upper part of the rear bumper with installing the reinforcing member in the upper part of the bumper face. CONSTITUTION: A rear bumper is composed of a bumper face(112) having an upper part extended horizontally from the upper part of a rear end panel(102) to the rear part of a rear frame(104) and a rear part extended from the rear end of the upper part to the lower part of the rear frame, and a reinforcing member(114) extended from the upper part of the bumper face to the upper part of the rear frame along the inside of the bumper face and fixed to the rear end panel. The lower part of the rear part is bent for the front of the rear frame to surround the rear frame, and the reinforcing member is installed in the upper part of the bumper face and manufactured by injection-molding polypropylene resin.
Patent KR-20010072493-A (KR)
Title: 전자기기, 데이터통신방법 및 전자기기의 데이터처리방법
IPC: H04L12/40
Filed: 2000-06-12
Abstract: 전원투입시 등에, IEEE1394규격에 따라서 버스리셋의 인터럽트가 발생하면, 루프접속이 되어 있는지 아닌지가 판정된다.    루프접속이 되어 있다고 판정되는 경우에는, 루프접속이 되어 있는 것을 나타내는 경고표시인 「i. LINK NG」, 또는 「i. LINK LOOP」가 표시된다.    이와 같은 표시가 이루어짐으로써, 루프접속이 행해지고 있는 것을 사용자 등이 인식할 수 있고, 루프접속을 해소하기 위한 처치를 행 할 수 있다.     루프접속이 되어 있지 않다고 판정되는 경우에는, 이와 같은 경고표시는 행해지지 않고, IEEE1394규격에 따른 통상의 동작으로 이행한다.
Patent KR-20010075070-A (KR)
IPC: C08K5/01
Filed: 1999-09-09
Abstract: An air shutoff agent for an aqueous reagent or an aqueous specimen (hereinafter referred to as "aqueous reagent or the like") which comprises as an effective component a mixture of a chain hydrocarbon (linear or branched) and a silicone oil which is immiscible with the aqueous reagent or the like and has a specific gravity lower than that of the aqueous reagent or the like; and a method for storing the aqueous reagent or the like with stability which comprises placing the mixture over the surface of the aqueous reagent or the like. The placement of the air shutoff agent for an aqueous reagent or the like over an aqueous reagent or an aqueous specimen results in the stable storage of an effective component in an aqueous analytical reagent and a component to be determined in an aqueous specimen, and the air shutoff agent has an advantageous characteristic that when the agent flows into a reaction vessel of an autoanalyzer it does not soil the reaction vessel.
Patent KR-20010090604-A (KR)
IPC: E02D25/00
Filed: 1999-09-30
Abstract: 파도, 지진 및 빙괴 하중에 저항하며, 환경 상태의 변화에 따라 신속하게 설치 및 폐기될 수 있는 해양 구조물이 개시된다.  상기 구조물은 구조적 다이어프램(24)에 의해 분리되는 상부 섹션(22)과 하부 기반 섹션(20)을 갖는 케이슨을 포함한다.  설치시에, 하부 기반 섹션은 구조물 상의 측방향 및 수직 하중을 견디는데 충분한 측방향 및 수직 토양 저항을 제공하도록 해저면(18)으로부터 소정의 거리 만큼 하향으로 연장된다.  상부 섹션은 갑판 구조물(45)을 지지하도록 적용된다.  구조적 다이어프램은 해양 구조물이 완전히 설치될 때 해양 구조물의 측방향 및 수직 하중 지탱 능력을 보강하기 위해 해저면 상에 위치되도록 적용된다.  설치 중에, 구조적 다이어프램과 펌프가 하부 기반 섹션에 흡인력을 형성하여 하부 기반 섹션의 해저면 내로의 삽입을 보강하도록 사용된다.
Patent KR-20010093096-A (KR)
IPC: B29C49/04
Filed: 2000-09-13
Abstract: 본 발명은, 중공성형품의 성형방법에 관한 것으로, 특히 결정성 열가소성 수지로 이루어진 중공성형품의 표면광택, 엠보싱 면 등의 금형 전사성 뿐만 아니라, 함몰, 휨 등이 없이 외관이 우수한 중공성형품을, 생산성 좋게 제조할 수 있는 성형방법에 관한 것이다.  결정성 열가소성 수지의 (결정화 온도-10℃) 내지 약 융점 범위의 금형 온도에서 기체를 불어넣어 형상을 만들고, 이어서 (결정화 온도 - 15℃) 내지 (결정화 온도 - 45℃)의 온도에서 30 내지 300초 유지한 후, 통상적인 방법에 의해 냉각시키는 중공성형품의 성형방법에 관한 것이다.
Patent KR-20010089744-A (KR)
Title: 제올라이트 막 및 이의 제조공정
IPC: B01J20/28
Filed: 1999-12-29
Abstract: 본 발명은 다공성 세라믹 물질의 적어도 하나의 표면 및 회합 세공을 덮으면서 균일하게 얇고, 필수적으로 연속적인 제올라이트 결정층이 코팅된 실질적으로 소결된 모놀리식 다공성 세라믹 기판을 포함하는 지지된 제올라이트 구조에 관한 것이다. 상기 제올라이트 결정층은 단일층 또는 제올라이트 결정을 포함하며, 어떤 성장성 향상층, 선택성 향상층 또는 배상층도 없으며, 상기 결정이 실질적으로 원주상 단면을 나타내는 배향구조를 나타낸다. 바람직하게, 상기 다공성 세라믹 기판 지지체는 분석 산화물에 기초하여 10-90중량%의 알루미나를 포함하며, 코디어라이트, 뮬라이트, 알루미나, 및/또는 이들의 혼합물로 이루어진 군으로부터 선택된 결정 상(phase) 어셈블리지를 나타낸다. 본 발명은 또한 제올라이트 막의 형성 방법에 관한 것이다. 상기 방법은 일반적으로 다공성 세라믹 기판을 제공하는 단계, 상기 기판을 산화 나트륨 또는 수산화 나트륨을 포함하고 0.01% 미만의 알루미나 농도를 갖는 수용액으로 수열 처리하는 단계를 포함한다. 상기 용액의 pH와 처리시간 및 온도는 이러한 반응조건이 상기 기판의 알루미나에서 부분적인 용해가 일어나고, 필수적으로 상기 용액내에서 어떠한 핵생성도 일어나지 않도록 조절되므로써 상기 다공성 지지체에 걸쳐 필수적으로 연속적인 제올라이트의 성장이 이루어지도록 한다.
Patent KR-20010112286-A (KR)
Title: 노광방법 및 장치
IPC: G03F7/20
Filed: 2000-03-14
Abstract: 복수장의 패턴을 2 차원적으로 화면을 연결하면서 전사하는 경우, 4 장의 패턴이 인접하는 부분에서의 적산노광량을 다른 부분에서의 적산노광량과 거의 동일하게 할 수 있는 노광방법이다.     웨이퍼상에 레티클 패턴의 투영이미지 (30A ∼ 30D) 를 X 방향, Y 방향으로 일부의 영역이 겹치도록 연결시켜 노광한다.     4 개의 투영이미지 (30A ∼ 30D) 가 인접하는 영역 (연결부 (31)) 에서는 각 투영이미지 (30A ∼ 30D) 의 직사각형 모서리부의 노광량 분포를, 각각 X 방향으로 점차 감소시키는 제 1 특성과 Y 방향으로 점차 감소시키는 제 2 특성을 조합한 특성에 기초하여 설정한다.
Patent KR-20010113862-A (KR)
Title: 다중 광 가이드 커넥터용 광섬유 조명기 어댑터 조립체
IPC: G02B6/42
Filed: 2000-03-23
Abstract: 다양한 형상의 광 가이드 커넥터(70)를 집속된 광원을 하우징하는 구조체에 커플링시키는 어댑터 조립체(10)는 내부 광학 가이드 엘리먼트(12), 커플링 구조체(20), 하우징(40), 및 커넥터 잠금 메카니즘을 갖는 내부 어댑터를 포함한다. 커플링 구조체(20)는 집속된 광을 하우징하는 구조체내에 삽입 및 해제 가능하게 고정될 수 있다. 광 가이드 커넥터(70)는 하우징 안에 형성된 광 가이드 수용 채널에 삽입되며 커넥터 잠김 메카니즘에 의해 내부에 해제 가능하게 고정된다. 내부 광학 가이드 엘리먼트(12)는 커플링 구조체(20)를 통하여 연장되며 집속된 광을 집속된 광원에서 커넥터-수용 채널 내에 삽입된 광 가이드 커넥터에 전송한다.
Patent KR-20010109341-A (KR)
IPC: C08G18/48
Filed: 2000-03-17
Abstract: Composite elements have the following layer structure:(i) from 2 to 20 mm of metal,(ii) from 10 to 300 mm of polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) compounds which are reactive toward isocyanates in the presence of from 1 to 50% by volume, based on the volume of the polyisocyanate polyaddition products, of at least one gas (c) and also, if desired, (d) catalysts and/or (f) auxiliaries and/or additives,(iii) from 2 to 20 mm of metal.
Patent KR-20020060614-A (KR)
Title: Nonreducing dielectric ceramic and ceramic electronic component using same
Inventor: NAITO MASAHIRO
IPC: C04B35/46
Filed: 2002-01-10
Abstract: PURPOSE: To provide a nonreducing dielectric ceramic which is capable of being simultaneously sintered together with a conductive body containing copper or a copper alloy and has a small rate of temperature change of the capacitance being within ±60 ppm/°C, and whose insulating resistance and dielectric loss are kept without decrease even when it is sintered under a neutral or a reducing atmosphere. CONSTITUTION: The nonreducing dielectric ceramic contains a tungsten bronze- type crystalline phase composed of constitutive elements of at least Ba, RE (RE is at least one of rare earth elements) and Ti and a pyrochlore-type crystalline phase composed of constitutive elements of at least RE and Ti, and satisfies following relation: 0.1<=b/(a+b)<=0.90, wherein a is the maximum peak intensity of the tungsten bronze-type crystalline phase, and b is the maximum peak intensity of the pyrochlore-type crystalline phase, in X-ray diffraction.
Patent KR-20030060636-A (KR)
Title: Biodisintergrable resin composition and method for preparing thereof
Inventor: CHAE HUN
IPC: C08L33/04
Filed: 2002-01-10
Abstract: PURPOSE: Provided are a biodegradable resin composition comprising a high density polyethylene resin which shows excellent physical property and moldability, and a method for producing the same. CONSTITUTION: The composition comprises (a) 30-70 parts by weight of high density polyethylene, (b) 1-50 parts by weight of biodegradable aliphatic polyester resin, (c) 1-40 parts by weight of starch, (d) 0.0001-5 parts by weight of diisocyanate-based binder, (e) 0.0001-5 parts by weight of vinyl silane-based binder; and (f) 0.00001-0.01 parts by weight of radical initiator. The high density polyethylene has a low molecule(Mw<10,000) of 20 wt%, a molecular weight distribution(PDI) of 35 or more, a density of 0.945-0.950 cm3, and a melt flow index of 0.20(error limit = ±0.05).
Patent KR-20030062025-A (KR)
Title: Divergence device for ceiling wiring
Inventor: KIM SEONG CHAN
IPC: H02G3/00
Filed: 2002-01-15
Abstract: PURPOSE: A ceiling wiring divergence apparatus is provided to be capable of designing wiring of multiple directions more simply. CONSTITUTION: A plurality of electric wires are embedded in a flexible tube(300). Male join members(230) are connected to front and rear parts of the flexible tube(300), and a plug(200) is configured to be inserted in the members. A receptacle(100) includes upper and lower bodies(110,120) and a female join member(130). The female join member(130) is connected to the plug(200) at opening parts of the upper and lower bodies(110,120). The receptacle(100) is configured such that the upper and lower bodies(110,120) are opposite to each other.
Patent KR-20030063778-A (KR)
Title: Method for control cool and cooling passage device using to atmospheric pressure sensor
Inventor: KIM DONG HYEON
IPC: G03B21/16
Filed: 2002-01-24
Abstract: PURPOSE: A cooling path device and a cooling control method for display devices are provided to cool the display devices by detecting air-pressure introduced into or discharged through an air sucking section or an air discharging section. CONSTITUTION: A cooling path device(1) includes an air sucking section(2) for sucking a predetermined amount of air by using a sucking fan(5). Air sucked by the air sucking section(2) flows through a cooling path(3) so as to cool components of a display device. An exhaust section(4) is provided to exhaust air to an exterior by using an exhaust fan(6). Sucking/exhausting air temperature sensors(7,8) are attached to the air sucking/exhausting sections(2,4). Sucking/exhausting atmospheric pressure sensors(9,10) are provided to cool an internal part and main components of the display device by increasing rotational speeds of each fan.
Patent KR-20020062858-A (KR)
Inventor: YOKOMORI SEIBUN
IPC: E04F11/022
Filed: 2002-01-25
Abstract: PURPOSE: A mounting fixture for a steel staircase is provided to correctly and easily construct the steel staircase, eliminate a landing from the steel staircase, and contribute to construction of the landing with cast-in-place concrete. CONSTITUTION: A steel staircase(20) extending downward is fixed to the mounting fixture(5) of a floor(23) of an existing standard story(F0). A floor form or the like on the next story(F1) is constructed, and a lower end of the steel staircase(20A) extending upward is fixed to the mounting fixture(5), followed by connecting the intermediate landing(21) and the steel staircase(20B) to the steel staircase(20A). Further, another mounting fixture(5) fixed to an upper end of the steel staircase(20B) is fixed to the form on the story(F1). Then, concrete is placed, and the next story(F1) is constructed by leveling an upper surface of the concrete, based on an upper edge of the mounting fixture(5) as a ruler. After development of hardening of the concrete, the forms, etc., which are unnecessary are removed, and therefore construction of a skeleton inclusive of the concrete floor(23) on the next story(F1) is completed, and the steel staircases(20A, 20B) are also constructed.
Patent KR-20030064915-A (KR)
Title: An insulation structure for refrigerator
Inventor: CHO SEONG HO
IPC: F25D23/08
Filed: 2002-01-29
Abstract: PURPOSE: A heat insulating structure for a refrigerator is provided to improve adiabatic performance by a double heat insulating structure and to reduce producing cost by using a simple air layer. CONSTITUTION: A heat insulating structure for a refrigerator comprises a main body(10) and an internal insulating wall(30). The main body comprises an outer shelf(22), an insulating foam(23) and an inner shelf(21). The internal insulating wall comprises a support frame(32) of an inner wall(31) supporting the inner shelf of the main body and the inner wall installed by the support frame. Therein, the inner wall and the inner shelf are installed to be separated in a specific distance by the support frame. A space between the inner wall and the inner shelf is filled with air. Therein, insulating efficiency is improved by an air layer and producing cost is reduced by using the simple air layer.
Patent KR-20030065768-A (KR)
Title: The discharging equipment of air and deposited water for fermentation tank with the stirrer
Inventor: YANG SA HEON
IPC: C05F17/02
Filed: 2002-01-31
Abstract: PURPOSE: An air supply and leachate discharge system of agitator type fermenting tank for composting food waste is provided, which prevents inverse flow and blocking of conduit line, supplies air homogeneously, and removes bad smell. CONSTITUTION: The air supply and leachate discharge system is characterized by comprising the parts of: a ventilator(21) for supplying compressed air; an inverse-flow preventer(22) connected to the ventilator; an air supply and discharge tube(23) set on the bottom of the fermenter; several air supply and water discharge tubes(24) made of synthetic resin, inserted into the upper part of the air supply and discharge tube(23); a valve(25) on the end of the air supply and discharge tube(23); a discharge tube(26) for discharging leachate and bad smell; a storing tank for keeping leachate and bad smell.
Patent KR-20020064220-A (KR)
Inventor: BOTTOU LEON
IPC: H04N7/26
Filed: 2002-02-01
Abstract: PURPOSE: A method and a system for classifying imaging devices are provided to improve compression efficiency and the video quality by sorting imaging devices from structured page information efficiently. CONSTITUTION: A method for classifying imaging devices includes assigning the imaging device based on the ratio between a perimeter of the imaging device and an occluded perimeter of the Image element, and coding the imaging device according to a coding scheme associated with the category to which the imaging device is classified(150). Exemplary applications include image compression, where categories include image foreground and background layers.
Patent KR-20030065959-A (KR)
Inventor: HWANG IN O
IPC: G11B7/254
Filed: 2002-02-02
Abstract: PURPOSE: A high density optical disk is provided to satisfy optical characteristic standards requested according to high density of recording capacity, thereby obtaining excellent signal characteristics in regenerating data after recording the data. CONSTITUTION: A high density optical disk is made up of a multi-layer film having at least one recording layer and an optical transmitting layer(6) accumulated in order on a substrate(1). The multi-layer film is formed by sequentially accumulating a reflective layer(2), a lower dielectric layer(3), a recording layer(4), and an upper dielectric layer(5). Grooves(8) and lands(9) are formed on the substrate. The recording layer is in thickness of 10-20nm.
Patent KR-20030031394-A (KR)
Title: Cushion system providing enhanced cushioning function and aeration
Inventor: RYU HAE GU
IPC: A47C27/00
Filed: 2002-02-06
Abstract: PURPOSE: Provided is a cushion system which combines an X-axis cross and a Y-axis cross desirably to provide effective cushion function and form space for ventilation inside for releasing users' temperature outside through fresh air so that it help users to feel freshness. CONSTITUTION: The cushion system comprises the parts of: the X-axis cross(100) which is formed in one direction of an elastic unit, in which an X-axis upper sheet and an X-axis lower sheet are placed in parallel with forming a hole at the center respectively, an X-axis upper groove part is connected to both sides of the X-axis upper sheet to keep convex downwardly and an X-axis lower groove part is connected to both sides of the X-axis lower sheet to keep convex upwardly; the Y-axis cross(200) which is formed in one direction of an elastic unit, in which a Y-axis upper sheet and a Y-axis lower sheet are placed in parallel with forming a hole at the center respectively, a Y-axis upper groove part is connected to both sides of the Y-axis upper sheet to keep convex downwardly, a Y-axis lower groove part is connected to both sides of the Y-axis lower sheet to keep convex upwardly, a circular ring is placed between the Y-axis upper groove part and the Y-axis lower groove part and a disk is placed in parallel with the Y-axis upper sheet and the Y-axis lower sheet with forming projections; and an upper and a lower cover(300,350) which are placed at the upper and the lower part of a complex body combining the X-axis cross and the Y-axis cross to fix the X-axis cross and the Y-axis cross.
Patent KR-20030068793-A (KR)
Title: Power Factor Correction circuit
Inventor: CHA YEONG GIL
IPC: H02M3/155
Filed: 2002-02-18
Abstract: PURPOSE: A power factor correcting circuit is provided to be capable of improving an efficiency and reducing a material cost by removing a bride diode used as a rectification circuit. CONSTITUTION: An inductor(L) is connected to a power source, and a diode(D1) is connected between the inductor(L) and one end of a capacitor(C). A switch(Q1) is connected between an anode of the diode(D1) and the other end of the capacitor(C). A diode(D3) is connected in parallel with the switch(Q). A diode(D2) and a switch(Q2) are connected in series between both ends of the capacitor(C). A diode(D4) is connected in parallel with the switch(Q2).
Patent KR-20020031116-A (KR)
Inventor: BAEK HEUNG GI
IPC: C02F1/00
Filed: 2002-02-20
Abstract: PURPOSE: Apparatus for screening algae is provided, which is characterized in that the apparatus is installed at the weir of settling pond to remove scum and algae in overflowed water. Therefore clogging of filter is prevented. CONSTITUTION: The apparatus is installed at the weir of the upper part of the settling pond. The apparatus is declined at 25-35 degrees from the weir. Mesh of the apparatus is 100-200. Optionally brush or water spray is installed at the apparatus to remove adhered floc.
Patent KR-20020026502-A (KR)
Inventor: KOO NAM SEO
IPC: A61M3/02
Filed: 2002-02-20
Abstract: PURPOSE: An appliance for washing the urethral canal of a man is provided to clearly and completely wash and sterilize the urethral canal of the man, thus preventing various diseases related with the urethral canal. CONSTITUTION: The appliance for washing and sterilizing the urethral canal of a man consists of an injector outer cylinder member(1) for receiving antibiotic solution to be used to wash and sterilize the urethral canal, an inner piston member(2) for pumping the antibiotic solution deeply into the urethral canal of the man, a nozzle rod(4) designed to be inserted into the urethral canal, and an atoxic synthetic resin made hose(6) to be inserted into the deep portion of the urethral canal.
Patent KR-20030069659-A (KR)
Title: Preparation of Body Nutritional Cream Prepared by Natural Herb and Seaweeds
Inventor: PARK YOUNG HO
IPC: A61Q19/08
Filed: 2002-02-22
Abstract: PURPOSE: Provided is a preparation of body nutritional cream using natural herbs including Morus bombycis, Lingusticum chuangxiong Hort, Rheum undulatum and the like and seaweeds including sea tangle, brown seaweed, starfish and the like. CONSTITUTION: A preparation of body nutritional cream using natural herbs and seaweeds comprises the steps of: treating natural herbs including Morus bombycis, Lingusticum chuangxiong Hort, Rheum undulatum and the like and seaweeds including sea tangle, brown seaweed, starfish and the like with ultrasonic wave; concentrating the obtained extract by ultrafiltration; and concentrating the concentrate again by nano-filtration.
Patent KR-20020069501-A (KR)
Inventor: KOMA TOSHIKI
IPC: A61H23/02
Filed: 2002-02-26
Abstract: PURPOSE: To provide a chair type massager which is capable of massaging an extensive area covering the bottom of the foot, heel, Achilles' tendon, calf of the leg as well as the back side of the knee in a bent condition. CONSTITUTION: The foot rest 4 is axially retained on the forefront of the seat portion 2 in a freely rotatable fashion. This footrest 4 is composed of a seat side frame 24 axially retained on the seat portion and a massage unit 25 whose basic portion is axially retained on a free end of the seat side frame in a freely rotatable fashion, where the forefront of the massage unit is provided with the therapeutic bodies, 41, 42 whose triple sides, namely, the surface of the front, reverse as well as the forefront portion, are equally applied for massage. Massage embodiments to meet a variety of desires of a user who performs massage with the outer or reverse or forefront surface are available when the rotational position of the seat side frame 24 for the seat portion 2 is combined with the rotational position of the massage unit 25 for the seat side frame 24.
Patent KR-20030072732-A (KR)
Title: mask for cathode ray tube with plane surface
Inventor: SONG JEONG MOK
IPC: H01J29/07
Filed: 2002-03-06
Abstract: PURPOSE: A mask for a flat cathode ray tube is provided to achieve improved weldability of mask and allow the non-effective surface of mask to be easily cut. CONSTITUTION: A mask(50) comprises an effective surface portion(51) having a plurality of slits for discriminating colors of electron beams; a non-effective surface portion(52) to be welded to a rail joined to a panel; a pattern portion(53) formed in the non-effective surface portion spaced apart from the edge of the effective surface portion; and an etching portion(54) etched into a predetermined depth in the space between the edge of the effective surface portion and the pattern portion in such a manner that the etching portion is approximately parallel to the edge of the effective surface portion.