baber/WOPTO huggingface dataset:
Patent KR-20040090674-A (KR)
Inventor: PARK JU CHEON
IPC: C11D3/43
Filed: 2003-04-18
Abstract: PURPOSE: A glass cleaning solution composition for vehicle is provided, to improve cleaning power, antifreezing property and environmental friendliness by adding a specific alcohol, a moisturizer, a corrosion inhibitor and a pH controller. CONSTITUTION: The glass cleaning solution composition comprises a solvent comprising 30-35 wt% of ethanol and 5.0-8.0 wt% of isopropyl alcohol; a surfactant; an additive comprising 1-6 wt% of a moisturizer, 0.05-0.15 a corrosion inhibitor and 0.05-0.15 wt% of a pH controller; and the balance of water and ion exchange water. Preferably the moisturizer is at least one selected from the group consisting of glycerin, ethylene glycol and propylene glycol; the corrosion inhibitor is at least one selected from the group consisting of benzotriazole and tolyltriazole; and the pH controller is sodium nitrite.
Patent KR-20040092863-A (KR)
Inventor: MIZUTA TAKAHISA
IPC: G09G3/288
Filed: 2003-04-29
Abstract: PURPOSE: A plasma display panel and a method for driving the same are provided to perform the addressing to the high resolution screen by increasing the address period with applying the time corresponding to the omitted reset period to the address period. CONSTITUTION: A method for driving a plasma display panel includes the steps of: applying the first pulse to the second electrode maintaining the first electrode with the first voltage; and alternatively applying the sustain pulse(54,55) to the first and the second electrodes as the voltage difference between the first electrode and the second electrode regards as the second voltage. After the sustain period, the address period of the next sub-field follows. In the method, the sub-field is provided with an address period to form wall charge on the discharge cell to be selected among the plurality of discharge cells and the sustain period to discharge the selected discharge cell.
Patent KR-20040095082-A (KR)
Inventor: YOO JAE MYEONG
IPC: H02J7/00
Filed: 2003-05-06
Abstract: PURPOSE: A display apparatus and a portable device charging method are provided to charge portable devices by using the power of the display device in cases where a charging adaptor is lost. CONSTITUTION: A display apparatus(100) comprises a power circuit unit(102) for converting an AC voltage into a DC voltage; a power converting unit(104) for converting an AC voltage into a DC voltage in accordance with the alternating operation of the primary and secondary sides of a transformer; and a connection terminal unit(106) for connecting the charging connector of a portable device(10) to the predetermined portion of the display apparatus which is interlocked with the power converting unit in such a manner that the DC power output from the power converting unit is used as a charging power of the portable device.
Patent KR-20040098219-A (KR)
Title: Apparatus for matching impedance
Inventor: KANG NAM SEOK
IPC: H03H7/38
Filed: 2003-05-14
Abstract: PURPOSE: An impedance matching unit having a driving shaft surrounded with a ground member is provided to prevent damage of an RF generator and a process chamber and enhance the process efficiency by matching correctly the impedance of the RF generator and the process chamber. CONSTITUTION: An impedance matching unit is comprised of a housing, a fixed condenser member, a rotating condenser member, a driving shaft, and a ground member. The fixed condenser member is installed in the inside of the housing. Both ends of the fixed condenser member are connected to an RF generator and a predetermined load, respectively. The rotating condenser member is installed at a predetermined position corresponding to the fixed condenser member in order to control the impedance of the RF generator and the predetermined load. The driving shaft(133) is connected to the rotating condenser member in order to provide the rotary power for rotating the rotating condenser member. One side of the driving shaft is inserted into one end of the ground member(140). The other end of ground member is connected to a phase detection member.
Patent KR-20040103058-A (KR)
Inventor: LEE JONG HUEN
IPC: E04F15/18
Filed: 2003-05-30
Abstract: PURPOSE: An interlayer structure for a multi-layer building is provided to insulate heat and noise by using a mesh panel in a thermal insulating layer, and to reduce the construction period and the weight of the building by removing the light aerated concrete layer. CONSTITUTION: Floors of a multi-layer building are divided by an interlayer structure, and a thermal and sound insulating layer(28) is arranged between a basic bottom layer(24) in the lower part and a finishing concrete layer(26) in the upper part. The thermal and sound insulating layer is composed of a mesh panel(30) formed by crossing plural rods, and a thermal insulating material layer(32) arranged in the lower part of the mesh panel. Heat is insulated, and noise is prevented efficiently by using the mesh panel to the thermal and sound insulating layer.
Patent KR-20040104069-A (KR)
Inventor: KIM JONG YEOL
IPC: G06F17/00
Filed: 2003-06-03
Abstract: PURPOSE: A method and a system for a Karaoke service using a moving image screen through the Internet are provided to offer the Karaoke service, enable a user to exchange text, chatting, and moving image information with the remote users through wired/wireless data communication, and enable the user to edit/make a personal bell sound of a mobile phone. CONSTITUTION: Karaoke devices(O) input/output various information to enable the user to sing a song by seeing lyrics displayed on the moving image screen. A set-top box(SB) manages various information needed for the Karaoke and value-added services by connecting to the Karaoke devices. A local server(LB) transceives various information with the Karaoke in a remote place by connecting to the set-top box. A database(DB) stores the songs and background images. A web server(WS) is connected to the local server, and provides the user with the value-added services such as the Karaoke service, a text message, a photo, a moving image, and the bell sound by comparing/analyzing the information stored in the database. The mobile phone(MP) wirelessly transceives the information with the web server.
Patent KR-20040104135-A (KR)
Inventor: JUNG I SIK
IPC: H02B13/075
Filed: 2003-06-03
Abstract: PURPOSE: An interlock device is provided to allow for ease of installation and management by simplifying the configuration of the device. CONSTITUTION: An interlock device comprises a disconnector lever(3), a link(4), a ground switch lever(7), and a cylinder(8). The disconnector lever is mounted on a disconnector driving shaft(2). The link has an end hinge-coupled to an end of the disconnector lever, and the other end where an elongated hole(4') is formed. The ground switch lever has a center integrally connected to a ground switch driving shaft(6), and an end arranged to slide in the elongated hole of the link. The cylinder has an end fixed at a ground switch driving device(5), and the other end hinge-coupled to the end of the ground switch lever.
Patent KR-20050001513-A (KR)
Inventor: YOU JAE SUNG
IPC: H01L29/786
Filed: 2003-06-25
Abstract: PURPOSE: A method of manufacturing a bottom gate type polysilicon TFT(Thin Film Transistor) device is provided to form a semiconductor layer made of a polysilicon layer without an additional photolithographic process by using the difference of etching rate between a crystallized silicon portion and an amorphous silicon portion. CONSTITUTION: A gate electrode(112), a gate insulating layer and an amorphous silicon layer(116) are sequentially formed on a substrate(110). A first region is defined in the amorphous silicon layer and a polysilicon layer(118) is formed within the first region by crystallizing selectively the amorphous silicon layer of the first region. A semiconductor layer made of the polysilicon layer is formed within the first region by etching the resultant structure using the difference of etching rate between the polysilicon layer and the amorphous silicon layer.
Patent KR-20050011022-A (KR)
Inventor: KIM SEON HO
IPC: G06Q99/00
Filed: 2003-07-21
Abstract: PURPOSE: A method and a system for selling a program of a user count style using a user count system and a seller code are provided to enable a program maker to receive a maximum sales effect at a small expense by removing worry that users illegally duplicate the program and increasing a more profit probability through promotion for making the program containing the seller code duplicated/used. CONSTITUTION: The user count system(200) allows the user to use a minimum function or a strategically limited function without user count even if the program is distributed with no charge. A counter operating homepage(212) enables the user to download/charge the user count to the program through the Internet(104). An offline charging method enables the user to charge the user count to the system not connected to the Internet by using a recording medium. A sales settlement system recognizes/records the seller code providing the program when the user buys the user count to a database, and pays the price corresponding to the sold user count to the seller.
Patent KR-20050012986-A (KR)
Title: Underwater air supply apparatus for minimizing noise by installing pumping part and underwater pumping part in water and improving air supply efficiency by ejector applied first and second air suction parts
Inventor: JI HYO KEUN
IPC: C02F3/16
Filed: 2003-07-25
Abstract: PURPOSE: To provide an underwater air supply apparatus which minimizes noise during operation and is used safely at the same time, and an underwater air supply apparatus capable of supplying air deep into the water and supplying a large amount of oxygen into the water to improve an air supply efficiency. CONSTITUTION: The apparatus(1) for supplying air into the water by vacuum self-priming pump comprises a pumping part(2) comprising a pump(21) for pumping water of a water tank; a first air suction part(3) comprising an ejector(31) to which a discharge pipe of the pump is connected, and an air inlet connected to the ejector to flow in an external air; an underwater pumping part(4) comprising a vacuum suction pump(41) to which the first air suction part is connected by a pipe, wherein the underwater pumping part is installed in the water tank; and a second air suction part(5) comprising an ejector(51) connected to the vacuum suction pump by a pipe, and an air inlet(52) connected to the ejector to flow in an external air, wherein the apparatus further comprises a fixing unit(6) for installing the pumping part, the first and second air suction parts and the underwater pumping part inside the water tank, wherein the fixing unit comprises a supporting plate(61), a buoy(62), a connection member(63) and a fixing rod(64), wherein a suction pipe with an air inflow pipe is connected to the vacuum suction pump of the underwater pumping part to directly suck in water of the water tank and the external air through the suction pipe in the state that construction of the pumping part and the first air suction part is excluded, and wherein blower units(7) for forcibly blowing air are connected to the air inlets of the first and second air suction parts.
Patent KR-20050012097-A (KR)
Title: Method for forming soho sales organization and performing sales for selling sales promotion stuffs through internet
Inventor: JEONG JEA CHEON
IPC: G06Q30/06
Filed: 2003-07-24
Abstract: PURPOSE: A method for forming a SOHO(Small Office Home Office) sales organization and performing sales for selling sales promotion stuffs through the Internet is provided to satisfy needs for specialized sales promotion stuff information and the discriminative sales promotion stuffs by offering diverse product information and products of diverse prices to customers through a database. CONSTITUTION: A sales promotion stuff SOHO is franchised on the on/offline. A sales promotion stuff maker registers the products on the Internet. A sales promotion stuff distributor is formed through cooperation/contract with a sales promotion stuff company. A sales promotion stuff ordering company is searched on the Internet by providing the product information. The SOHO inputs order information. The inputted order information is classified into each product/price/class through an operation system of an input controller. The processed information is formed to a region database, a class database, a price database, a calculation database, and an order database. The customer searches the database on the Internet.
Patent KR-20050015758-A (KR)
Inventor: KIM HYUN SOOK
IPC: D06F39/08
Filed: 2003-08-07
Abstract: PURPOSE: A drum-type washing machine and a control method thereof are provided to shorten the total washing time by supplying the small quantity of water into a rotary drum and melting detergent inserted into a water tub together with the water at the same time and to execute smoothly a washing course by wetting the dried laundry in an initial stage. CONSTITUTION: A drum-type washing machine is composed of a water tub(11) for storing the water; a rotary drum(20) installed in the water tub to receive the water; a first water supply unit for feeding the water into the water tub; a second water supply unit for feeding the water into the rotary drum; and a controller for controlling the first and second water supply units to supply independently the water into the water tub and the rotary drum in washing the laundry inserted in the rotary drum.
Patent KR-20050020280-A (KR)
Inventor: KANG KI TAE
IPC: A47J43/04
Filed: 2003-08-21
Abstract: PURPOSE: A cutting and crushing device of garlic is provided to cut down the manufacturing cost by directly turning the cutting and crushing device with a hand of a user without a motor, and to cut the garlic accurately by inclining the curved surface of the garlic transfer blade. CONSTITUTION: A garlic cutting and crushing device is composed of a body(1) having a garlic storage part(11) in the upper part and a space part opened in the front and the rear part and communicated with the garlic storage part, a garlic transfer blade(2) vertically installed in the center of the garlic storage part of the body and combined with a rotating shaft(21) rotated by external force, and a garlic cutting plate(3) horizontally formed in the lower part of the garlic transfer blade and composed of an upper cutting blade(33) stepped in the plane and a lower transfer surface(34) and a discharge port(35) between the upper cutting blade and the lower transfer surface. A rotating handle(22) is connected to the rotating shaft, and a curved surface of the garlic transfer blade is inclined downward.
Patent KR-20050021079-A (KR)
Inventor: KIM HONG YEOL
IPC: B29C49/06
Filed: 2003-08-26
Abstract: PURPOSE: A PET(Polyethylene Terephthalate) bottle integrally formed with a handle and a manufacturing method thereof are provided to improve the supporting force and the grip force of the handle by integrally injection-molding the handle in the body of the PET bottle with drawing and blowing, and to increase the stability by enhancing the durability of the PET bottle. CONSTITUTION: A preform of a PET bottle with a neck, a handle and a body is formed by injecting resin into a first mold with an injection molding machine(S10), and the injection-molded product is heated by using a heater(S20). The heated product is placed in a second mold, and the body is injection-molded in the second mold by drawing the body with an extension rod and blowing air(S30). The PET bottle is injection-molded by drawing and blowing air, and the body surrounding the end of the handle is integrally formed with the handle(S30'). The finished product is separated by opening the second mold(S40).
Patent KR-20040022192-A (KR)
Inventor: PAYS KARL
IPC: A61K8/39
Filed: 2003-09-05
Abstract: PURPOSE: A keratin fiber make-up composition containing at least one nonionic surfactant and anionic surfactant and a gelling polymer is provided. The utilization of the composition can provide make-up results for charging of keratin fibers, in particular eyelashes and eyebrows, or the separation thereof, depending upon the need. CONSTITUTION: The make-up composition for keratin fiber comprises: 0.01 to 30% by weight of at least one ionic surfactant, 0.01 to 40% by weight of at least one nonionic surfactant having a hydrophilic-lipophilic balance of at least 8 at 25 deg.C; and 0.1 to 60% by weight of a gelling polymer and has a solids content of at least 45.5% by weight and a plateau modulus of rigidity Gp of 5500 to 60,000 Pa. The ionic surfactant contains at least triethanolamine stearate. The nonionic surfactant is selected from oxyethylenated and/or oxypropylenated fatty acid alcohol, fatty acid ether of polyethylene glycol, oxyethylenated and/or oxypropylenated glycerol ether, oxyethylenated and/or oxypropylenated sorbitol ether, a copolymer of propylene oxide and ethylene oxide and a mixture thereof.
Patent KR-20050028115-A (KR)
Title: Method for standardizing reception sensitivity in dmb receiver and thereof apparatus
Inventor: SHIN PIL SUP
IPC: H04N7/00
Filed: 2003-09-17
Abstract: A method and an apparatus for quantifying reception sensibility in a DMB(Digital Multimedia Broadcasting) receiver are provided to quantify the reception sensibility by automatically performing the rising/falling of an antenna according to the reception sensibility. A tuner(130) tunes a broadcasting signal. A baseband unit(140) converts the broadcasting signal transmitted from the tuner into a digital signal, demodulates the digital signal, checks the reception sensibility of the demodulated signal, and generates an antenna driving control signal. An antenna driving signal output unit(120) performs the rising/falling of an antenna in response to the antenna driving control signal. A decoder(150) decodes multimedia data transmitted from the baseband unit. A graphic processing unit(160) outputs the multimedia data transmitted from the decoder to a display unit(170).
Patent KR-20050029399-A (KR)
Title: Discharge valve support apparatus for reciprocating compressor
Inventor: JUNG WON HYUN
IPC: F04B39/10
Filed: 2003-09-22
Abstract: A discharge valve support apparatus for a reciprocating compressor is provided to prevent an abnormal noise by stabilizing opening and shutting operation of a discharge valve and to improve the efficiency of a compressor by stabilizing suction and discharge of refrigerant gas. A reciprocating motor is fixedly installed at a frame, having a mover reciprocating in a straight line. A piston is combined with the mover of the reciprocating motor and is elastically supported by resonance springs so that the piston reciprocates in a straight line inside a cylinder(41). A suction valve is installed at a front end surface of the piston for opening and shutting a suction passage of the piston to limit suction of refrigerant gas. A discharge valve(44B) is arranged at a front end surface of the cylinder to limit discharge of refrigerant gas. A discharge cover(44A) contains the discharge valve for covering a discharge side of the cylinder. A valve spring(44C) is installed between the discharge valve and the discharge cover for elastically supporting the discharge valve. The valve spring is formed of a compressed coil spring wound at predetermined pitch gaps, having at least one or more inflection points between both ends of the valve spring.
Patent KR-20040086115-A (KR)
Inventor: HANAI ISAO
IPC: E01F15/04
Filed: 2003-10-11
Abstract: PURPOSE: A shock absorbing apparatus of a guardrail is provided to prevent traffic accidents by installing simply with simple structure without digging the foundation again, and by absorbing and buffering impact with deformation of the energy absorbing pipe or collapse of the support at a collision. CONSTITUTION: Plural supports(12) are arranged in the ground, and a guard fence(14) is mounted longitudinally between the supports. An ohm-shaped middle spacer or an opened pipe spacer is arranged between the guard fences, and locking units(17,18) are attached to the support and the guard fence. Impact energy is absorbed and distributed at a collision by irreversible deformation of the middle spacer. The shock absorbing apparatus is mounted to the support, the pole, the interchange, the tollgate and the partition of the parking lot to cover the surface of the equipment.
Patent KR-20050038523-A (KR)
Inventor: KIM CHEOL HAN
IPC: B60R1/00
Filed: 2003-10-22
Abstract: 본 발명은 카메라를 이용한 차간 거리 측정장치 및 방법에 관한 것으로서, 일차량에 근접된 차량의 번호판 부분을 촬영 가능하도록 장착되는 카메라와, 카메라로 촬영된 근접 차량 번호판의 촬영된 크기를 통하여 일 차량과 근접 차량간의 차간거리를 추출하는 제어부를 구비한다.
Patent KR-20040038783-A (KR)
Inventor: YAZAWA TAKAYUKI
IPC: B25J11/00
Filed: 2003-10-29
Abstract: PURPOSE: An industrial robot is provided to accurately and quickly measure an amount of particles nearby a semiconductor wafer or a liquid panel fixed on a hand part of the robot within a clean space by arranging a particle counter on the hand part of the robot. CONSTITUTION: An industrial robot(1) performing works such as assembling, machining, and carrying includes a hand part(10) having a particle counter in a clean space(11). The particle counter measures cleanness of the clean space(11). An intake hole is positioned at a front end part of the particle counter. The particle counter counts particles based on the scattered light generating the particles in a measurement area projected by a laser beam.
Patent KR-20050041263-A (KR)
Inventor: LEE MIN SUK
IPC: H01L21/28
Filed: 2003-10-30
Abstract: 본 발명은, 100nm 이하의 최소 선폭을 갖는 반도체 장치의 콘택홀 형성 공정시 캡핑층으로 인한 콘택 낫 오픈 현상을 방지할 수 있는 반도체 장치 제조 방법을 제공하기 위한 것으로, 이를 위해 본 발명은, 기판 상에 이웃하는 복수의 도전패턴을 형성하는 단계; 상기 도전패턴이 형성된 프로파일을 따라 식각정지막을 형성하는 단계; 상기 식각정지막이 형성된 기판 전면에 층간절연막을 형성하는 단계; 상기 층간절연막 상에 포토레지스트 패턴을 형성하는 단계; 상기 포토레지스트 패턴을 식각마스크로 상기 층간절연막을 식각하여 상기 이웃하는 도전패턴 사이의 식각정지막을 노출시키는 콘택홀을 형성하는 단계; 상기 포토레지스트 패턴을 제거하는 단계; 상기 콘택홀 저면의 면적 확보를 위해 1차 세정하는 단계; 1차 세정이 완료된 상기 결과물 상에 단차피복성이 열악한 증착 조건으로 절연성 캡핑층을 형성하는 단계; 후속 2차 세정시 제거가 용이하도록 상기 캡핑층의 일부를 플라즈마 처리하는 단계; 상기 콘택홀 저면의 면적 확보를 위해 2차 세정하는 단계-이 때, 열화된 상기 캡핑층의 일부가 제거됨; 및 상기 콘택홀 저면에서의 상기 식각정지막을 제거하여 상기 기판을 노출시키는 단계를 포함하는 반도체 장치 제조 방법을 제공한다.
Patent KR-20050045352-A (KR)
Inventor: LEE DONG JAE
IPC: E02F9/20
Filed: 2003-11-11
Abstract: 본 발명은 굴삭기의 엔진제어장치에 관한 것으로, 특히 복수개의 가변용량형 메인유압펌프(P1,P2)와 파이롯유압펌프(P3)가 1개의 엔진(E)에 연결되어 구동되고, 엔진(E)은 스로틀 컨트롤러(12)가 엔진회전수 설정수단(11)에서 입력되는 엔진의 목표회전수와 작업레버(20)에 구비된 엔진회전수 가속제어수단(21)에서 입력되는 엔진회전수 증감량을 더한 최종 엔진회전수 제어신호를 스로틀레버 제어모터(14)에 입력하고, 스로틀레버 제어모터(14)는 그 엔진회전수 제어신호에 따라 스로틀레버(13)의 각도를 조절함으로써 엔진의 회전수를 제어한다.  
     이러한 본발명은 작업레버(20)에 설치된 엔진회전수 가속제어수단를 조작하는 간단한 동작만으로 엔진의 회전수를 간편하게 제어하여 작업성을 향상시키는 동시에 조작이 편리한 장점을 제공하는 것이다.
Patent KR-20050051501-A (KR)
Inventor: KIM TAE SOO
IPC: H05B44/00
Filed: 2003-11-27
Abstract: 본 발명은 제품별로 구동전류의 산포가 큰 발광다이오드의 구동조건을 설정하여 백라이트를 구동시켜 줌으로써 원하는 색도 및 휘도를 얻을 수 있는 필드순차 구동방식의 액정표시장치를 개시한다. 
     본 발명의 액정표시장치는 액정구동조건 및 발광다이오드별 구동 조건을 미리 저장하고, 액정표시장치의 동작시 외부로부터 제공되는 제어신호에 따라 저장된 액정구동조건 및 발광다이오드 구동조건중 해당하는 액정구동조건과 발광다이오드 구동조건을 출력하는 LCD 콘트롤러와; 상기 LCD 콘트롤러로부터 제공되는 액정구동조건에 의해 구동되는 액정 패널과; 상기 LCD 콘트롤러로부터 발생된 발광다이오드 구동조건에 상응하여 백라이트를 구동하기 위한 백라이트 구동회로와; 백라이트 구동회로로부터 발생되는 신호에 따라 순차 구동되는, 적어도 2개이상의 발광다이오드를 구비하는 백라이트를 포함하며, 상기 LCD 구동회로는 미리 저장된 발광다이오드별 구동조건중 상기 적어도 2개이상의 발광다이오드에 적합한 구동조건을 백라이트로 제공하여, 상기 적어도 2개이상의 발광다이오드를 순차 구동한다.
Patent KR-20050052235-A (KR)
Inventor: HWANG EUI JEONG
IPC: G09G3/296
Filed: 2003-11-29
Abstract: 본 발명은 플라즈마 디스플레이 패널의 에이징 방법 및 장치에 관한 것이다. 
     플라즈마 디스플레이 패널의 에이징 방법에서 제2 전극을 기준 전압으로 유지하고 상기 제1 전극에 상기 기준 전압보다 높은 양의 전압 파형을 인가한다. 그리고 양의 전압 파형을 인가한 이 후, 제1 전극에 기준 전압을 인가한다. 그리고  제1 전극에 상기 기준 전압보다 낮은 음의 전압 파형을 인가한다. 
     이와 같이 하면, 에이징 전압이 낮아져 패널의 안정성을 향상시킬 수 있고 에이징 효율이 증가되어 에이징 시간을 단축시킬 수 있다.
Patent KR-20050054155-A (KR)
Inventor: SONG KEUN CHUL
IPC: D01H13/04
Filed: 2003-12-04
Abstract: 본 발명은 섬유기계용 스핀들 및 그 제조방법을 제공한다. 본 발명은 섬유를 가이드하는 섬유기계용 스핀들에 있어서, 섬유를 수용할 수 있는 가이드 홈을 갖추고 있으며, 가이드 홈에는 다이아몬드상 카본박막이 소정의 두께로 코팅되는 것을 특징으로 한다. 또한, 스핀들 제조방법은 알루미늄 또는 산화알루미늄 또는 질화규소 또는 아크릴로 가이드 홈을 갖는 스핀들을 제조하는 단계와; 제조된 상기 스핀들의 표면을 세정하는 단계와; 세정된 상기 스핀들의 가이드 홈에 다이아몬드상 카본박막을 코팅하는 단계를 포함한다. 이러한 본 발명에 의하면, 스핀들의 표면에 다이아몬드상 카본박막을 코팅처리함으로써 섬유를 손상시키지 않고도 가이드 할 수 있고, 특히 가이드 홈의 내마모성이 향상되어 수명이 연장되는 장점을 갖는다.