baber/WOPTO huggingface dataset:
Patent KR-20000048506-A (KR)
Title: Extraction of energy from flowing fluids
Inventor: ARNOLD LEE
IPC: F03D5/00
Filed: 1997-09-19
Abstract: PURPOSE: Techniques and apparatus for using the kinetic energy of a moving fluid stream and more particularly a cascade of aero- or hydro-foils oscillating in such a stream is provided which produce useful work, e.g. generate electricity, by removing energy from the stream or produce propulsion by adding externally supplied energy to create a negative drag. CONSTITUTION: Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work is performed by using a cascade of thin aero of hydro foils (2) positioned therein. The foils is provided with at least two degrees of freedom and adjacent foils move out of phase. The foils are subjected to fluid induced oscillations known as flutter. Barriers (3, 43) is positioned downstream, above, or at the sides of the apparatus for increasing efficiency. A system of fly wheels (17, 18) to increase inertia of the foils is used with the hydrofoils. A cascade of aero of hydro foils is mechanically oscillated.
Patent KR-20000053029-A (KR)
Inventor: BOHEM YOHANES
IPC: H04S5/02
Filed: 1997-10-25
Abstract: PURPOSE: A method and device for outputting source of sound through speaker is provided to enhance the capabilities of audio signals through speakers so as to effectively reproduce sound. CONSTITUTION: A method and device for outputting source of sound through speaker includes the following components. A speaker is not formed in a certain way so as to effectively transmit sound. A source of sound(3) is translated into acoustic object through a certain speaker structure(2). A acoustic object is allocated with spacial information which informs the location of space and sound. The actual location of a speaker and spacial information of the source of sound is used to calculate the virtual distance to the listener(1). A separate process(7, 8, 9) is executed on the audio signals of each speaker on each acoustic object before reproducing the sound.
Patent KR-20000070159-A (KR)
IPC: F04D29/02
Filed: 1998-01-16
Abstract: A high-pressure fan comprising a blade wheel (3, 4), a fan housing (5, 6) surrounding the blade wheel and an electric motor (1) to operate the blade wheel. To eliminate the problems related to the mounting of the blade wheel, the blade wheel (3, 4) at least mainly consists of light carbon fiber based composite material and is directly mounted on the shaft (2) of the electric motor.
Patent KR-20010005612-A (KR)
Title: 안과용 검사 및 처치를 위한 머리 고정 장치
IPC: A61B3/00
Filed: 1998-02-09
Abstract: 본 발명은 안과용 처치 및 검사를 위한 머리의 고정 장치에 관한 것으로, 머리 고정부(41)와 턱받침(43) 그리고 눈가리개(24)로 구성되고, 눈가리개는 도구를 사용하지 아나하고서도 착탈이 자재롭게 고정장치의 기둥(50a, 50b)에 설치되고, 가림판(25)이 구비되어 있으며 이로서 검사나 처치를 하지 아니하는 눈을 가릴 수 있게 하고, 더 나아가, 의사가 엄지손가락이나 새끼손가락을 올려 놓을 수 있는 지지부를 가지는 지지구(71)를 설치하며, 지지구(71)는 이를 얼굴고정부(41)를 설치하는 고정 장치의 기둥에 설치하여 구성시킨 것이다. 이와 같은 본 발명의 머리 고정 장치로 의사는 환자의 검사와 처치를 용이하게 할 수 있다.
Patent KR-20010005778-A (KR)
Title: 디티오카보네이트함유 화합물을 포함하는 조성물
IPC: C09D11/10
Filed: 1998-04-02
Abstract: 본 발명은 일반식(Ⅰ) 
     
       
     
     (상기 식에 있어서, R¹, R² 및 R³는 동일하거나 다르며, 수소 또는 저급 알킬을 나타낸다)로 나타내어지는 5원환 디티오카보네이트기를 적어도 하나 함유하는 중합체 또는 화합물, 구핵시약 및 금속화합물을 함유하는 조성물을 제공한다.
Patent KR-20010006342-A (KR)
Title: 말단에 관능기를 가지는 폴리메타크릴계 중합체 및 그의 조성물
IPC: C08F4/08
Filed: 1998-04-08
Abstract: 중합개시제로서 알칼리금속 알코올레이트를 사용하고, 메타크릴산 에스테르의 에스테르 형성 잔기 (알코올부) 의 특정부위에 전자공여성기를 담지시킨 모노머와, 경우에 따라서 락톤 또는 락티드와의 혼합물을 중합시킨 중합체가 제공된다.     또한, 이러한 중합체의 제조 방법 및 중합체로부터의 폴리머 미셀도 제공된다.     이들 중합체는 중합개시제부의 관능기와 상기 전자공여성기 (관능기) 를 가지는 중합체를 제공할 수 있으므로 이들 관능기를 이용한 다종다양한 기능을 발휘시킬 수 있다.
Patent KR-20010014342-A (KR)
IPC: H04N21/434
Filed: 1998-06-30
Abstract: 프로그램 채널은 비디오 처리 및 저장 매체 포맷에 사용되는 패킷화된 프로그램 정보 내에 제 1 및 제 2 식별 번호가 할당된다. 패킷화된 프로그램 정보는 프로그램의 데이터 내용을 제공하기 위하여 디코드(100)된다. 패킷화된 프로그램 정보에 있는 채널 맵 정보는 식별(60,22)된다. 채널 맵은 제 1 방송 서브-채널을 식별하는데 사용하기 위해 제 1 식별 번호를 포함하고, 제 1 식별 번호는 제 1 방송 소스와 관련된다. 채널 맵은 제 1 식별 번호와 관련된 서브-채널의 그룹 중에서 제 1 방송 서브-채널을 식별하는데 사용하기 위해 제 2 식별 번호를 또한 포함한다. 식별된 번호는 제 1 및 제 2 식별 번호를 연계하여 이용해서 제 1 방송 채널 상에 전송된 프로그램을 식별하는데 사용하기 적합한 채널 맵을 형성하기 위하여 조립(60,22)된다.
Patent KR-20010068506-A (KR)
Title: Semiconductor package comprising device with double density integration circuit
Inventor: JUNG TAE GYEONG
IPC: H01L21/60
Filed: 2000-01-06
Abstract: PURPOSE: A semiconductor package with a double density integration circuit is provided to minimize a height of a package without laminating semiconductor chips. CONSTITUTION: The first connection portion(132) such as a bonding pad is formed on the first active face(130). The second connection portion(142) such as a bonding pad is formed on the second active face(140). An adhesive(170) such as a tape for LOC(Lead On Chip) is located on the first and the second active faces(130,140). Inner leads(112) are attached by the adhesive(170). The bonding pads(132,142) are connected electrically with the inner leads(112) by a bonding pad(160). A region including the bonding pads(132,142) and the inner leads(112) is molded by a molding member such as a molding resin(150).
Patent KR-20010068762-A (KR)
Title: Propelling Device for Laying Pipe under the Ground
Inventor: WEE SEONG GYEONG
IPC: E21D9/06
Filed: 2000-01-10
Abstract: PURPOSE: A propeller of an underground pipeline is provided to sufficiently expand a propelling distance of the propelling device of the conduit. CONSTITUTION: A heavy propelling device(10) contains: a base(5) faced to a repulsive wall(11); plural cylinders(17) installed on the base; a hollow intermediate member(19) operated as a piston by inserting inside the cylinder; an extending rod(21) controlled a length to be inserted into the hollow of the intermediate member by equipping with a combining member; and a propelling plate(27) to transfer propelling force of the cylinder to a propelling device(13) by connecting with the extending rod and contacting with the propelling device. More than one expansion propelling jack are connected with the propelling plate. The extending rod is installed in an actuating device inside the propelling device.
Patent KR-20000018239-A (KR)
Inventor: JUNG HYUNG SIK
IPC: A61H39/04
Filed: 2000-01-25
Abstract: PURPOSE: A device is to apply acupressure and massage to the foot sole and apply far infrared ray on the acupoints of the sole to stimulate blood circulation and metabolism. The device is also to be used as a weight scale to find obesity. The device includes a main body(10) having some grooves on the top face to receive heating lines(30); a play panel(20) having numerous point projections for acupressure and being set over the top face of the body(10) to vibrate for the action of acupressure; one or more vibrator units(40) for activating vibration of the play pane(20); one or more batteries installed on the inner side of the body(10); a power switch(70) and plug(72). CONSTITUTION: The device includes a main body(10) having some grooves on the top face to receive heating lines(30); a play panel(20) having numerous point projections for acupressure and being set over the top face of the body(10) to vibrate for the action of acupressure; one or more vibrator units(40) for activating vibration of the play pane(20); one or more batteries installed on the inner side of the body(10); a power switch(70) and plug(72).
Patent KR-20000024148-A (KR)
Inventor: KIM YOUNG HO
IPC: B60R99/00
Filed: 2000-01-25
Abstract: PURPOSE: A controller is provided to control a vehicle criminal accident and to cope with the accident by using an electric light plate installed in the vehicle and a radio communication terminal to protect a driver when a robber breaks into the vehicle. CONSTITUTION: A personal protection switch(36) is installed in a position around a driver or a proper position. If a personal protection switch installed on a drivers seat as a system to actively cope with the situation when a vehicle criminal accident is occurred, the A switch is pushed ROM processor connected with a circuit through a controller and an interface circuit indicates a character and a message of a graphic content on the electric light panel. For example, a message, "A robber breaks into a vehicle. Help me." is indicated to ask people for help.
Patent KR-20010076062-A (KR)
Title: The clean chopsticks
Inventor: HA SUNG SOO
IPC: A47G21/04
Filed: 2000-01-24
Abstract: PURPOSE: Hygienic chopsticks are provided to ensure easy usage for an unskilled user by fixing one chopstick to a circular body and rotationally installing the other chopstick to a cam shaft. CONSTITUTION: Chopsticks(5) have indentations(4) in one inner sides at the end thereof and projections(3) at the middle portions thereof. One of the chopsticks(5) is fixed to a body(1), and the other one is coupled to a rotary cam(6). A cam shaft(10) is assembled into a circular groove in the rotary cam(6). A compressive coil spring(8) is inserted at one end into a spring support(7) manufactured together with the cam shaft(10), and installed in a groove of a space(11). An assembling rod in a cover is inserted into an assembly hole(9) in the body to obtain a hygienic chopstick assembly. The other chopstick(5) attached to the rotary cam shaft(6) is rotated up to 60 degree, and returns to the original position by the compressive coil spring(8). The projections(3) keep the chopsticks(5) a constant distance from a table.
Patent KR-20010084031-A (KR)
Title: Container air bag
Inventor: KONG JONG CHAN
IPC: B65D90/00
Filed: 2000-02-23
Abstract: PURPOSE: A cargo fixing device of a container is provided to prevent breakage by restricting cargo from being moved in the container loaded in an airplane or a ship. CONSTITUTION: An air bag(111) is installed in a container(101) and a container compartment mounted in an air plane or a ship. Air is supplied from a compressor through an air supply pipe(112) by operating a button in loading cargo in the container and the container compartment. Plural air bags are connected to the air supply pipes, and expanded in supplying air to the air supply pipe. The expanded air bag by pneumatic pressure pushes the upper part and both sides of the cargo, and prevents the cargo from being moved in the container and the container compartment. The space is enlarged in the container and the container compartment according to unloading the cargo. The cargo is prevented from being moved and broken by filling the space with the expanded air bag and fixing the cargo firmly.
Patent KR-20010084461-A (KR)
Title: A system and the method of providing wallpaper
Inventor: KWON HYE JIN
IPC: G06F17/00
Filed: 2000-02-25
Abstract: PURPOSE: A system and a method for providing a wall paper are provided to enable a user to easily access to a web site using a URL in a combo box by setting up a web page into which the combo box composed of scripts is inserted. CONSTITUTION: A user information database(130) stores user information. A web server(140) includes a wall paper providing web site(140) which serves a wall paper web page set to a wall paper of a terminal(100). In case that a URL(Uniform Resource Location) of the site(140) is inputted from a web browser(105), the site(140) is transmitted to the terminal(100) and outputted through the web browser(105). A data management server(150) receives URL information selected by the Internet user from the web server(140) and inserts the information to the wall paper web page. In addition, the server(150) forms a wall paper installation file and transmits the file to the terminal(100).
Patent KR-20000076754-A (KR)
Title: 절연막의 에칭 방법 및 배선층의 형성 방법
IPC: H01L21/311
Filed: 2000-02-29
Abstract: 유기계 유전막(誘電膜)을 포함하는 절연막에 대하여 대미지(damage)층의 형성이나 스루풋(throughput)의 저하를 초래하지 않고 신속하게 에칭 가공하는 방법을 제공한다. 
     기판(10)에 폴리알릴에테르막 등의 유기계 유전막(12)과 산화 실리콘계 유전막(13)의 적층막 등, 유기계 유전막을 포함하는 절연막(14)을 형성하고, 절연막의 상층에 마스크층(R)을 패턴 형성한다. 다음에, 유기계 유전막 부분(12)을 에칭 가공할 때, 수소 가스와 질소 가스의 혼합 가스 중, 또는 암모니아 가스의 혼합 가스 중에서의 기체 방전 등에 의해 발생하는 NH기(基)를 함유하는 이온 또는 래디컬(radical)에 의해, 마스크층(R)을 에칭 마스크로서 에칭하여, CN기를 함유하는 반응 생성물 등을 생성하면서, 절연막(14(12))을 에칭하여, 개구부 등을 형성한다.
Patent KR-20000062724-A (KR)
IPC: A61K8/25
Filed: 2000-03-03
Abstract: Cosmetic compositions in the form of powders having a particulate phase and a fatty phase, the fatty phase containing at least one ester of a fatty acid or alcohol, having a carbon chain that is branched and saturated and contains 24 - 28 C atoms.  The ester preferably has at least two carbon chains as described, the ester having a total of at least 50, and preferably at least 70 C atoms. Typical of such esters are branched 24C fatty acid triglyceride esters, pentaerythritol esters, and diacid esters with branched 24C fatty alcohols. The use of glyceryl tri(decyl-2-tetradecanoate) is especially preferred. The ester generally comprises up to 30% of the weight of final composition, 2 - 20% being preferred. The fatty phase may further contain a mineral, animal, vegetable or synthetic oil or wax. The particulate phase preferably contains pigments, such as mineral pigments and nanopigments, lakes, acid dyes, coated pigments and nacreous pigments. Pigment generally comprises 2 - 20% of the composition. The particulate phase may further contain 0 - 99% , especially 0 - 40% of a filler such as talc, mica, silica, kaolin, nylon, poly- beta -alanine, polyethylene, polytetrafluoroethylene, lauroyl-lysine, starch, boron nitride, bismuth oxychloride, polymethylmethacrylate, polyurethane, polystyrene, polyester, silicone resin hollow microspheres, microsponges, or microballs, oxides of zinc, titanium, zirconium, or cerium, precipitated chalk, magnesium carbonate and hydrocarbonate, hydroxyapatite, hollow silica microspheres, glass or ceramic microcapsules, metallic soaps, and their mixtures. The compositions are formulated as loose or compacted powders.
Patent KR-20010091495-A (KR)
Title: Sound Recording Medium Recorded with Literary Work
Inventor: YOON WON HO
IPC: G11B5/74
Filed: 2000-03-16
Abstract: PURPOSE: An audio recording medium with literary work recorded therein is provided to give the moderns a chance to cultivate themselves by enabling the moderns to listen to literary works through a cassette tape recorder, a compact disc player or like devices. CONSTITUTION: Literary works are recorded in an audio recording medium, so that instead of reading literary works, a user can listen to the literary works by playing the audio recording medium through an audio player. The audio recording medium is a cassette tape. The audio recording medium may be a compact disc. The audio recording medium may be an MP3. The moderns have more chance to access the literary works. The user can listen to the literary works even when he/she is in a subway or a dark place. The user can listen to the literary works while doing other works including walking or driving. Students can easily get to access to the literary works and various classic necessary for preparation of statement. A plurality of people can listen to the literatures at once.
Patent KR-20000036502-A (KR)
Inventor: LEE MYEONG HO
IPC: F25D3/00
Filed: 2000-03-17
Abstract: PURPOSE: A cooling bottle and a cooling box by using a heat siphon are provided to achieve continuous cooling without adding new ice pieces and power supply, so that the cooling bottle and cooling box are conveniently used portably. CONSTITUTION: In a cooling bottle and a cooling box by using a heat siphon, a cycle of thermal absorption-evaporation-heat radiation-condensation is formed in a vacuum container and heat siphon having heat diode property and filled with a predetermined amount of a working solution such as ethanol or methanol is vertically installed in the container so that a condensation working solution circulates by gravity without installing any additional wick, and continuous and semi-permanent cooling is achieved.
Patent KR-20010094468-A (KR)
Title: Adjustable internet access terminal in the bench arm rest and horizontal bar of luggage rock within the subway cart/train
Inventor: KANG YOON SOO
IPC: G06F1/00
Filed: 2000-03-30
Abstract: PURPOSE: An internet terminal installed at an armrest and a upper end horizontal bar for a motor car seat in the subway capable of controlling height and angle is provided to be convenient a using of the internet terminal in a passenger coach by installing the internet terminal at an armrest and upper end horizontal bar. CONSTITUTION: A terminal(10) is installed at an armrest(50) to form a horizontal structure. Two extension arms(100a,100b) are inserted in the side portion of the terminal(10) to control a height. An opposite end of the extension arms(100a,100b) is axially connected with a vertical post(52) to control an angle by means of brackets(200a,200b). The terminal(10) is position at the breast of a user along the armrest(50) by means of the height arms(100a,100b). A one end of a fixing axle(100) is connected with the vertical post(52), and the other end of the fixing axle(100) is connected with the terminal(10). A display(300) is installed at an upper end horizontal bar(54) by using a rail and a connecting bracket. The display(300) is moved along the rail.
Patent KR-20000036997-A (KR)
Inventor: KANG DAE WOON
IPC: B29B17/00
Filed: 2000-04-04
Abstract: PURPOSE: A method for producing a panel assembly is provided to make a production simple and to massively produce the panel assembly by attaching an external panel to both sides of an inner panel made from urethane foaming resin and industrial waste, using an adhesive. CONSTITUTION: A metal mold is produced for molding the external of a panel. A urethane blower compresses and blows urethane foaming resin and a pulverizer pulverizes industrial waste. The resin and waste are mixed together in a mixer. The mixture is molded in normal temperature and cut in wanted thickness by a heat wire. The cut molded product is bonded with an external material. The industrial waste contains waste urethane foam, styrofoam, glass fiber and rock wool.
Patent KR-20010094792-A (KR)
Inventor: KIM JAE SONG
IPC: B60R16/04
Filed: 2000-04-06
Abstract: PURPOSE: A secondary battery charging method with residual electricity generated by an engine rotation of a vehicle after maximally charging a primary battery is provided to resolve the inconvenience for charging the electricity in an electric vehicle frequently by additionally mounting a secondary battery to the vehicle and recover about 90% of electricity loss. CONSTITUTION: A secondary battery charging method with residual electricity generated by an engine rotation of a vehicle after maximally charging a primary battery includes a secondary battery such as a lithium-ion battery in addition to a primary battery so that residual power after charging the primary battery fully is automatically charged to the secondary battery.
Patent KR-20010096915-A (KR)
Title: 니켈기 비정질 합금조성물
Inventor: JANG JONG SIM
IPC: C22C45/04
Filed: 2000-04-19
Abstract: 본 발명은 니켈기 비정질 합금조성물에 관한 것이다.  이들 합금의 조성은  니켈-질코늄-티타늄-실리콘 4원계 합금이며, 조성범위는 니켈 45-63 원자%, 질코늄+티타늄 32-48 원자%, 실리콘 1-11 원자% 이며 일반식  Ni a (Zr l-x Ti x ) b Si c 에 의해 나타낼 수 있으며, 또한 여기에 V, Cr, Mn, Cu, Co, W, Sn, Mo, Y, C, B, P, Al 중 적어도 한 종류의 원소(M)를 전체 조성물에 대하여 2-15 원자% 첨가한 합금조성물이 개시된다. 
     본 발명의 니켈기 벌크 비정질 합금은 우수한 비정질 형성능을 갖고 있어서 두께 1mm 혹은 그 이상의 크기로 주조법에 의하여 제조될 수 있다.  또한 50K 이상의 과냉각 액상 영역을 갖고 있어 과냉각 액상 영역의 온도에서 점성 유동을 이용한 고온 성형이 가능할 뿐 아니라 본 발명의 니켈기 벌크 비정질 합금은 높은 강도, 내마모성, 내부식성을 지니고 있기 때문에 고강도 내마모 부품, 구조용 재료, 용접 및 코팅 재료 등에 벌크 형태의 비정질 합금으로 제조되어 사용될 수 있다.
Patent KR-20000049848-A (KR)
Inventor: KIM WON HYUN
IPC: C05G3/00
Filed: 2000-05-03
Abstract: PURPOSE: A preparation method of a biocapsule containing minerals with high content trace elements and microbial preparations is provided which capsules the minerals and the microbial preparations with alginic acid simply and economically, thereby the capsule is capable of controlling the release of active components and is biodegradable. CONSTITUTION: A preparation method of a biocapsule comprises mixing a culture solution prepared from cultivation of a microorganism useful for growth and development of animals and plants with a natural mineral comprising at least one of bentonite, loess and charcoal powder; mixing the mixed solution with an aqueous alginate solution with a certain concentration; spraying the mixed solution through a nozzle to produce droplets with a certain size; reacting the each droplet with a multivalent metal cation solution to change the each droplet into solid beads by ion-exchange reaction in the solution, thereby being precipitated into the lower layer of the metal solution; and filtering, washing and air-drying the precipitated solid beads.
Patent KR-20000050112-A (KR)
Inventor: KIM SHIN DUG
IPC: G06F12/08
Filed: 2000-05-16
Abstract: PURPOSE: A method for controlling a cache system including a fully associative buffer and a direct-mapped cache is provided to update data of small unit block which accessed among data of large unit block deleted in the fully associated buffer on the direct mapped cache. The method is provided to reduce power consumption and access failure rate by increasing a temporal locality in a state maintaining a spatial cache, as data of accessed address prolongs a time existed the direct-mapped cache. CONSTITUTION: A method for controlling a cache system including a fully associative buffer and a direct-mapped cache, comprises the steps of: recognizing whether empty large unit block is existed in the fully associated buffer, if accesses to the direct-mapped cache and the fully associated buffer are failed(S1); executing S10, if the empty large unit block is existed(S2); executing S4 or the S10, if not existed spare blocks in the S1(S3); recognizing whether the data of small unit block data recorded directly on the fully associated buffer, among data of large unit block to be output by a FIFO(S4); storing corresponded data of small unit block in a main memory, if the data of small unit block is existed(S5); recognizing whether data of small unit block accessed among the data of large unit block(S6); recognizing whether the data of small unit block is recorded on the direct-mapped cache directly, if the data of small unit block accessed in the S6; storing the data of small unit block, if the data of small unit block is recorded(S8); updating the data recognized in the S6 within the direct-mapped cache(S9); and updating data of address and neighboring addresses access in the S1 in the large unit block within fully associated buffer by the FIFO(S10).
Patent KR-20010105687-A (KR)
Title: Enhancement method for incorrectly exposed image using hurter and driffield curve
Inventor: LEE SANG U
IPC: G06T5/00
Filed: 2000-05-17
Abstract: Apparatus and a method for receiving spread-spectrum signals is provided. The method includes the steps of detecting a noisy user signal from a spread-spectrum signal including at least a first user signal (including data therein) and at least one pilot signal, and removing an interference effect of the pilot signal on the first user signal from the noisy user signal thereby to create a noise reduced user signal.
Patent KR-20010108888-A (KR)
Inventor: OH SE GYUN
Filed: 2000-06-01
Abstract: 본 발명은 영상디스플레이장치에서의 수평동기회로에 관한 것으로, 더욱 상세하게는 수평부로부터 출력부로 수평동기신호를 전달하여 동기시키는 수평동기회로에 관한 것이다. 
     본 발명에 의한 수평동기회로에서는 종래의 수평동기회로에서 사용하는 동기 트랜스포머를 사용하지 않고, 커패시터로 이를 대체하여 구성된다. 즉, 본 발명에 의한 수평동기회로는 제1 커패시터와 제2 커패시터가 직렬로 접속하고, 상기 제1 커패시터의 일단은 수평동기신호단자에 접속하며, 상기 제2 커패시터의 일단은 다이오드의 애노드단자와 저항에 접속하고, 상기 저항의 다른 일단은 접지되며, 상기 다이오드의 캐소드단자는 출력부에 접속되어 구성되어지는 것을 특징으로 한다. 
     본 발명에 의한 수평동기회로를 사용하는 경우에는, 종래의 수평동기회로가 사용하던 동기트랜스포머를 사용하지 않음으로써, 공정을 간소화하고, 생산원가를 절감하는 효과를 얻을 수 있다