baber/WOPTO huggingface dataset:
Patent KR-20010058794-A (KR)
Title: Cmos differential logic circuit
Inventor: KONG BAE SEON
IPC: H03K19/0948
Filed: 1999-12-30
Abstract: PURPOSE: A CMOS differential logic circuit is provided to reduce a delay by a massive load of an electric capacity using a unitary boot strap capacitor, thereby maintaining a high operation speed. CONSTITUTION: In a CMOS differential logic circuit, a PMOS transistor(MP3) is provided, wherein the gate thereof is connected to a node(NC), the drain is connected to a node(NG), and the source is connected to a supply voltage(VCC). An NMOS transistor(MN3) is provided, wherein the gate thereof is connected to a node(NC), the drain is connected to a node(NG) and a connection point of a substrate and a source is connected to a node(NE). A PMOS transistor(MP1) is provided, wherein the gate thereof is connected to a node(NG), the drain is connected to a node(NI) and the source is connected to a supply voltage(VCC). An NMOS transistor(MN1) is provided, wherein the gate thereof is connected to a node(NB), the drain is connected to a node(NI) and the source is connected to a ground.
Patent KR-20010059601-A (KR)
Inventor: CHO YONG GYUN
IPC: C25D3/00
Filed: 1999-12-30
Abstract: PURPOSE: A method for uniformly electroplating a plating layer of an edge part is provided to prevent growth of dendrite of the edge part of a steel sheet and uniformly plating the edge part and the center part thereof by modifying an existing edge mask used in a horizontal electroplating facility into a new form. CONSTITUTION: In a method for electroplating a steel sheet in which a steel sheet is plated using a plating solution spray nozzle at an edge mask between insoluble anodes, the method for uniformly electroplating a plating layer of an edge part is characterized in that an electrically conductive material is used as the edge mask, paint is covered or a plastic non-conductive material is inserted between the anode and the opposite surface so that conduction between the anode and the edge mask is prevented, and inclination is provided to the opposite edge mask to the steel sheet so that a distance between the steel sheet and the edge mask become closer as it goes to the edge area of steel sheet.
Patent KR-20000029451-A (KR)
Title: Fastening means for an absorbent garment
Inventor: THUREN SVANTE
IPC: A61F5/44
Filed: 1997-10-24
Abstract: PURPOSE: Disposable absorbent garments of the type which are fastened around the user's waist are provided. CONSTITUTION: Absorbent garment (1) comprises first and second waist portions (5, 6),wherein the waist portions are joined by an intermediate region including an absorbent body (4). First attachment means is provided on the first waist portion, and second attachment means is provided on the second waist portion, these attachment means cooperating with each other for releasable attachment. The first attachment means comprises at least two elongate attachment strip elements (11; 12; 13) extending between the side edges of the first waist portion (5) and the second attachment means comprises an attachment strip element (14-17) at either side edge of the second waist portion(6) extending generally transverse to the first attachment means. By arranging the first attachment strip elements to be separated by a distance (x1, x2) which is at least as large as a major proportion of the width (w) of any one of the first attachment strip elements and by giving each of the second attachment strips a length (y1, y2) greater than that distance, the waistband region of the garment is given good stability whilst still maintaining the advantages of adjustable reclosure.
Patent KR-20000029521-A (KR)
Title: Endoprosthesis
Inventor: KELLER ARNOLD
IPC: A61F2/30
Filed: 1997-05-07
Abstract: PURPOSE: Endoprosthesis is provided which enables easy removal of a grub screw in case of a reoperation. CONSTITUTION: Endoprosthesis comprises a connecting pin (3) and a connecting hole (4) to receive the latter, for connecting two or more of its components (1, 2). To secure their mutual position, a locking grub screw (6) is provided in a grub screw hole (5) in one of the two components (3), and a recess (7) to receive part of the length of the locking grub screw (6) on the other component (2). In order to make it easier to release the grub screw in case of a reoperation, the strength of the grub screw is arranged to be such that its securing effect can be overcome by a load of a size not to be expected during normal use of the prosthesis. This is preferably done by having the grub screw be brittle, and/or possess a rated breaking point (11).
Patent KR-20000068731-A (KR)
Title: 세그먼트 시간을 구하는 방법
IPC: F02D45/00
Filed: 1998-07-16
Abstract: 본 발명은, 단지 조악한 캠 축의 각도 정보만 있을 때, 예컨대 크랭크 축 증분 센서에 결함이 있을 때 또한 결정 가능한 세그먼트 시간이 내연기관을 신뢰성 있게 조절하기에는 너무 부정확할 때에 내연기관에 이용될 수 있는 세그먼트 시간을 구하는 방법에 관한 것이다. 점화를 통해  기동될 수 있는 가속도가 그 다음에 결정된다. 이들 가속도는 가속도 계수로 환산되고 세그먼트 시간을 교정하는데 사용된다.
Patent KR-20000052837-A (KR)
Inventor: KOPPELMAN EDWARD
IPC: C10L5/00
Filed: 1997-10-28
Abstract: PURPOSE: Provided is a process for treating carbonaceous material wherein the resulting product is resistant to undesired combustion. CONSTITUTION: A process for producing upgraded carbonaceous materials wherein the resulting product is resistant to undesired combustion, comprises the steps of: (a) providing a heat exchanger including an outer casing and an inner chamber, an inlet for introducing carbonaceous material into either the outer casing or the inner chamber, an outlet for removing the carbonaceous material from the outer casing or the inner chamber and at least one inlet for introducing a gaseous mixture comprising a major amount of inert gas and a minor amount of oxygen into the outer casing or inner chamber containing the carbonaceous material; (b) circulating a heat exchange medium having a temperature of at least 250 °F through either of the outer casing or inner chamber not containing the carbonaceous material to effectuate an increase in the temperature of the carbonaceous material; (c) introducing the gaseous mixture into the heat exchanger portion including the carbonaceous material; and (d) recovering the carbonaceous material through the outlet.
Patent KR-20000069257-A (KR)
Title: 통화 셋업 프로세스
IPC: H04W88/16
Filed: 1997-11-27
Abstract: 사용자가 현재 연결되어 있는 네트워크(12,13,14)가 서비스를 지원할 수 있는지 여부와 관계없이, 이동전화(11)의 사용자가 그 홈 네트워크에 고유한 IN 서비스를 이용하도록 허용하고, 사용자가 나가는 통화 시도를 하는 경우(단계 1), 관련된 시그낼링은 시그낼링 채널상에서 전송되며, MSC(13)는 (통화 셋업 신호에서 전자적으로 엔코드된) 고객 아이덴티티를 인식하고, 레지스터(14)에 저장되는 사용자와 관련된 데이터를 액세스하며, 사용자(11)와 관련된 레지스터(14)내 데이터는 사용자를 IN 서브 고객으로서 식별하는 표시를 포함하여 MSC(13)가 통화 프로세스를 중단하도록 하고, 사용자의 홈 네트워크내에서 서비스 제어 포인트(SCP)(15)로 신호(2), 프로토콜을 전송하며, SCP(15)는 사용자의 서비스 프로파일을 활성화시키고, 상기 프로파일의 일부로서 예를 들어 PIN 또는 일부 다른 정보와 같은 추가 정보를 사용자(11)로부터 검색할 필요성을 인식하며, 필요로하는 정보를 식별하면, SCP는 예를 들어 권한부여 코드를 요청하는 이동국으로 메시지(3)를 초기화하고, 상기 권한부여 코드는 시그낼링 프로토콜을 이용하여 스위칭 센터(MSC)(13) 및 기지국(BSS)(12)를 경유해 MS(11)로 전달되고, 메시지(3)를 수신한 사용자는 이동국(11)이 호스트 네트워크를 경유해 제 2 신호(4)를 SCP(15)로 재전송하며, SCP(15)는 수신된 메시지상에 작용하고 MSC(13)로 응답(5)을 반환하며, 그것에 의해 MSC(13)는 만일 요구된다면(6) 전체 음성 채널을 포함하는, 예를 들어 통화를 셋업하기 위해 상기 정보상에 작용할 것이고, 상기 시스템은 데이터가 SCP(15)와 사용자(11) 사이에 직접적으로 전송되도록 허용하며, 호스트 네트워크는 초기 및 마지막 스테이지(1,5)를 제외하고는 시그낼링 프로토콜과 호환가능하도록 요구하지 않고, 또한, 시그낼링 채널이 사용되기 때문에, 더 큰 대역폭을 갖는 트래픽(음성) 채널은 통화 셋업 프로세스가 완료되지 않는다면, 그리고 완료될 때까지 사용되지 않는 것을 특징으로 한다.
Patent KR-20000069715-A (KR)
Title: 개선된 자연 냉매순환식 원자로
IPC: G21C1/00
Filed: 1997-12-23
Abstract: 가압수, 액체금속 혹은 용융금속염 등의 냉매(3)가 자연순환되고, 또한 코어(8)를 수용하는 베셀(2), 적어도 1개의 열교환기(30), 또한 코어(8)와 열교환기(30)를 유압식연결하는 수단을 구비한 원자로(1)에 관계한다.  냉매(3)의 순환속도는 보조-순환수단에 의해 증가하며 이에따라 베셀(2) 상부에서 기체층(5)으로부터 나온 기체흐름은 기체층(5) 아래에서 끝나고 코어위에 위치한 관(11)속으로 적어도 1개의 블로어(20, 21)와 각 분배시스템(24, 25, 28)에 의해 분사공급된다.  관(11)은 예컨대, 코어(8)의 컨테이너(9) 연장부를 형성하는 원통관이며 또한 또다른 내부 원통요소(13)에 의해 내부형성되고 또한 이 요소의 하단은 코어(8)로부터 예정거리만큼 떨어진 곳에 위치하여 냉매(3)를 순환시키는 한편, 상단은 냉매의 자유면(4) 아래로 연장되어 관(11)내의 하향재순환을 방지한다.
Patent KR-20000075665-A (KR)
IPC: H02G3/04
Filed: 1998-12-24
Abstract: 본 발명은 복수의 배선·배관재를 손상시키는 일 없이 순차적으로 원활하고도 용이하게 수납구에 부설, 수용하는 것을 목적으로 하여 이루어진 것이다. 
     이를 위하여, 배선·배관재 W를 수납구 1의 인입로 4에 인입시킨 후, 상기 인입로 4에 인입된 상기 배선·배관재 W를 수용로 5로 이동시켜 수용하고 부설하는 것으로 한다.
Patent KR-20010006551-A (KR)
IPC: H01L33/00
Filed: 1998-04-07
Abstract: A method is disclosed for recovering surface-ready silicon carbide substrates from heteroepitaxial structures of Group III nitrides on silicon carbide substrates. The method comprises subjecting a Group III nitride epitaxial layer on a silicon carbide substrate to a stress that sufficiently increases the number of dislocations in the epitaxial layer to make the epitaxial layer subject to attack and dissolution in a mineral acid, but that otherwise does not affect the silicon carbide substrate, and thereafter contacting the epitaxial layer with a mineral acid to remove the Group III nitride while leaving the silicon carbide substrate unaffected.
Patent KR-20010012157-A (KR)
Inventor: KAGAN MICHAEL Z
IPC: A61P15/18
Filed: 1998-04-28
Abstract: This invention provides a method of providing progestational therapy to a mammal in need thereof which comprises administering a progestationally effective amount of a pharmaceutically acceptable salt of 5alpha-pregnan-3beta-ol-20-one 3-sulfate ester to said mammal.
Patent KR-20010012819-A (KR)
Title: 고온에서 치수 안정성이 있고 용접선 강도가 높은 난연성폴리카르보네이트 성형 조성물
IPC: C08K5/523
Filed: 1998-05-11
Abstract: 본 발명은 A) 70 내지 98 중량부의 방향족 폴리카르보네이트, B) 0.5 내지 20 중량부의 그라프트 중합체, C) C.1) C를 기준으로 하여 10 내지 90 중량%의 화학식 I의 모노인 함유 화합물 및 C.2) C를 기준으로 하여 90 내지 10 중량%의 화학식 II의 인 화합물의 혼합물 0.5 내지 5 중량부, 및 D) 평균 입경 0.05 내지 1000 ㎛, 밀도 1.2 내지 2.3 g/cm 3 및 65 내지 76 중량%의 불소 함량을 갖는 플루오르화 폴리올레핀 0.05 내지 5 중량부를 함유하는 난연성 열가소성 성형 조성물에 관한 것이다. 
     ＜화학식 I＞ 
     
       
     
     ＜화학식 II＞
Patent KR-20010013506-A (KR)
IPC: G03H1/18
Filed: 1998-06-04
Abstract: According to the invention, a surface pattern (1) has N visually recognisable patterns consisting of diffractionally effective, microscopically fine relief structures or flat reflective surfaces, or comprising absorbent or dispersive structures. The N patterns together contain at least one common independent surface element (11). Said surface element (11) is divided into surface parts, said surface parts being arranged in a predetermined structure which is independent of the N patterns. Said arrangement of the surface parts is not visible to the naked eye. Each surface part is covered with an individual, microscopically fine diffraction structure or alternatively, a structure which has an absorbent or dispersive property or which is a flat reflective surface. The relief structures, diffraction structures and other structures are embedded in a plastic laminate (20) and the optical effect of said structures can be increased with a reflective layer (21). The surface pattern (1) is applied to a document (2) as a security element and enables said document to be recognised by machine in a reading device.
Patent KR-20010069067-A (KR)
Title: Method of Supplying Information using Internet
Inventor: LEE SANG HOON
IPC: G06F17/00
Filed: 2000-01-12
Abstract: PURPOSE: A method for providing information using the Internet is provided to link and connect to the corresponding web site in accordance with an information requesting condition when a user searches information using a computer being installed in a public place by storing a simple web browser and user's information in a card-typed CD. CONSTITUTION: If a user installs a card-typed CD in a CD drive, a CPU reads user's information and enables a data transmitting/receiving unit(ST100, ST110). The read information is stored in a memory and provided to the data transmitting/receiving unit, thus the information is transmitted to a member information managing company through an Internet broadcasting(ST120, ST130). The data transmitting/receiving unit receives an approval number from the Internet and provides the number to a CPU, and the CPU re-drives the CD drive by the number and reads a simple web browser(ST140, ST150). Web site information is displayed through a monitor and a speaker(ST160, ST170). If the user applies a completing command through a key input unit for terminating a web site search, the CPU disables the data transmitting/receiving unit and deletes all contents as web browser contents and user's information being stored in the memory(ST180, ST190).
Patent KR-20010080801-A (KR)
Title: Apparatus For Locking Windows
Inventor: LEE GANG GYU
IPC: E05C17/60
Filed: 2000-01-17
Abstract: PURPOSE: A locking device for a window is provided to instantly and automatically lock the window when the window is partially opened or completely closed. CONSTITUTION: A window locking device comprises a lock housing(40) locking a window(11) by inserting a lock pin(43) into the hole of a lock rail installed in an upper and a lower window frames(21,22); a lever housing(60) controlling the lock pin through a cable connected to the lock pin, in the center of a side channel(11A) of the window; an auxiliary lock housing(70) locking a second window(12) by inserting an auxiliary lock pin(72) into the hole of the lock rail installed in the lower window frame, in a side channel(12A) of the second window. The lock housing is combined with a body by a socket and a screw(B), and a spring settlement device is concluded with one end of the socket to guide the lock pin and a spring. At the same time, a lock pin fixer is combined with the end of the lock pin and a finishing cap is combined with the other end of the socket. The lever housing contains a body and a handle. A lever connected to the cable of the lock housing, is rotatively combined in the body by a hinge. The end of the lever is protruded outside the body. The auxiliary lock housing contains an auxiliary spring settlement device in a body to guide the auxiliary lock pin and a spring. An auxiliary lock pin fixer is combined to the end of the auxiliary lock pin with an auxiliary lever moved along a guiding hole on the circumference of the body.
Patent KR-20000024064-A (KR)
Inventor: HWANG SUN OG
IPC: G01B3/10
Filed: 2000-01-18
Abstract: PURPOSE: A tape measure is provided to form a stable measuring result by displaying a real measured on a display window as a measuring result value and recognizing the measuring result value in a case. CONSTITUTION: A handle(202) is installed in the center of a case(200) for rewinding a tape measure which is led after measuring a distance. A tape measure(100) is led to an outside of the case(200) and simultaneously a real measure value is displayed on a display window(302) located in the surface of the case(200) as a digital figure when a measuring terminal of a tape measure is attached to a distance to be measured and the case(200) is moved to a measured last position. A sensor(301) installed in a port senses a conductive body(104) exposed in the surface of the tape measure(100) when An on/off switch(303) of a digital display unit(300) is inputted as an on-state and a measuring terminal portion(101) of the tape measure(100) is located in a measuring start point, and then the case(200) is moved to the measuring last position. Information to an arrangement state of the conductive body(104) is provided to an operation unit of the digital display unit(300). The display window(302) displays the operation result as a digitalized figure.
Patent KR-20010075855-A (KR)
Title: Realtime Goods Information System
Inventor: KIM HO WOOK
IPC: G06F17/00
Filed: 2000-01-20
Abstract: PURPOSE: An Internet real-time goods guidance system is provided to directly offer desired goods information in real time so that users can enjoy on-line home shopping more rapidly and conveniently. CONSTITUTION: An Internet real-time goods guidance system provides a program to users so that they can receive goods information in real time. The program, connected directly with a goods database, selectively transmits desired goods information to users every time goods are updated. If a user installs the program and registers desired goods and a desired price, the Internet real-time goods guidance system constructs a database for them so that desired goods information can be transmitted every time the goods are registered. Whenever goods information is transmitted to the user, the Internet real-time goods guidance system informs the user of it with a message and a voice. The user, receiving the message, accesses an on-line shopping homepage and confirms and purchases the desired goods.
Patent KR-20010077121-A (KR)
Title: method and apparatus for protecting of power circuit
Inventor: JUN BYEONG JUN
IPC: H02M3/335
Filed: 2000-01-31
Abstract: PURPOSE: The protecting device and method of power source circuit is provided to protect the power source circuit by alarm or break of power source when reverse phase signal is detected from 3-phase power source to be input through transformer. CONSTITUTION: The protecting device comprises a transformer(301) to supply power source signal, a rectifier part(302) to rectify the power source signal, a comparator part(303) to compare the rectified input signal, and a microprocessor(304) to judge whether reverse phase or not. A voltage input part(301) is connected with the bridge rectifier circuit(302) with diodes and the output of the rectifier circuit(302) is connected with analog/digital input part of the microprocessor(304) passing through many resistors(R1-R6). The pulse signal as much as the compared value to compare R-phase with S-phase to be rectified at the comparator part(303) is output from the input of the comparator part(303). The pulse signal and rectified signals are connected with the input port of the microprocessor(304). The microprocessor(304) judges the signals and generates an equipment operating control signal to protect the power source circuit when it is judged that input signal is reverse phase signal.
Patent KR-20010077219-A (KR)
Title: Fungicides containing Glutarimide Antibiotics, Streptimidone
Inventor: HWANG BYEONG GUK
IPC: A01N33/00
Filed: 2000-02-01
Abstract: PURPOSE: Provided is a sterilizer for preventing botanical diseases which includes streptimidone of glutarimide class antibiotic as effective component so that it shows prevention effect against botanical diseases as actinomicetes-led natural materials. CONSTITUTION: The sterilizer for preventing botanical diseases by streptimidone shown in a formula(1) as glutarimide class antibiotic shows prevention effect against the botanical diseases such as Botrytis cinerea, Cladosporium cucumerinum, Didymella bryoniae, Magnaporthe grisea and Phytophthora capsici. The streptimidone of glutarimide class antibiotic is prepared from Micromonospora coerulea Ao58 strain.
Patent KR-20010081249-A (KR)
Title: Liquid crystal display and method for fabricating the same
Inventor: JUNG YU HO
IPC: G02F1/136
Filed: 2000-02-11
Abstract: PURPOSE: A method for manufacturing an LCD and an LCD thereof are provided to prevent the reduction of productivity due to mis-alignment by performing only the first to the fourth mask process. CONSTITUTION: A passivation layer(112) is formed on an upper portion of a data line(104). The passivation layer(112) has a curved shape to prevent short-circuit between a pure semiconductor layer and a pixel electrode formed under the data line in an existing LCD. An etching gas is whirled in the curved portion of the passivation layer(112). Accordingly, the shirt-circuit is not generated since a pure amorphous silicon(152) formed under the passivation layer(112) is over-etched toward the inside of the pure amorphous silicon(152). Namely, an edge portion of the passivation layer(112) is formed as an under-cut shape since the pure amorphous silicon(152) is over-etched toward the inside of the pure amorphous silicon(152).
Patent KR-20010084599-A (KR)
Title: Method for the Preparation of Monolithic Kitchensinktop Using the Continuously Molding Apparatus and the Apparatus thereof
Inventor: KIM GWANG SEOK
IPC: B29C41/24
Filed: 2000-02-28
Abstract: PURPOSE: A device and a method for continuously manufacturing kitchen sink tops is provided to integrally form a kitchen sink top without an additional process by using a continuous forming mold consisting of an upper mold and a lower mold. CONSTITUTION: For continuously manufacturing integrated kitchen sink tops(a,b,c,d,e,f), a liquid resin mixture prepared by mixing such a thermosetting resin as unsaturated ester resin, acrylate resin or methacryl resin, such a filling agent as aluminum hydroxide, calcium carbonate, silicate or magnesium oxide, such a hardening agent as a peroxide or perester compound, and such a cross-linking agent as an acrylate compound is injected into a mold of a continuous forming die(10) consisting of an upper die(11) whereon an upper heat supply unit(15) is attached and a lower die(12) whereon a left and right heat supply unit(16) and a lower heat supply unit(17) are attached. Then, the liquid resin mixture is hardened. The hardened material is cut by a round saw blade. Therefore, integrated kitchen sink tops including a top, a back splash and an apron or a top, a back splash, an apron and a water sill are manufactured continuously. Without bonding portions, durability is improved. Moreover, working hours and processes are reduced.
Patent KR-20010091807-A (KR)
Title: High pressure jet type combustion equipment of vaporized mixture of oil and water
Inventor: EUN HUI UK
IPC: F23D11/16
Filed: 2000-03-18
Abstract: PURPOSE: A high pressure injecting typed flowing water mixer/combustor is provided to reduce the discharge of contaminated gas and to maximize efficiency of a fuel. CONSTITUTION: A flowing water mixer/combustor comprises pumps(1,2,3) supplying fuel oil and water; a water supplying valve(4) controlling the water; a fuel oil supplying valve(5) controlling the fuel oil; a lower pressure spray nozzle(6) injecting the fuel oil through the electronic pump; an ignition bar(16) igniting the fuel oil by receiving high voltage from a high pressure transformer(11); a blower(12) and a spinner(13) supplying air to combust the fuel oil in a combustion pipe(15); a coil shape vaporizing pipe(10) generating steam by heating the water with flame of the lower pressure spray nozzle; a mixer nozzle(9) mixing and discharging the fuel oil in the fuel oil pump; a combustion sensing sensor(14) checking combustion of the combustion pipe; a control unit controlling the ignition time of the ignition bar and water supply amount; and a manipulate unit combusting the water and the fuel oil through operating the control unit.
Patent KR-20010093879-A (KR)
Title: Manufacture mold of shoes midsole type
Inventor: KO SANG SU
IPC: B29D35/00
Filed: 2000-04-01
Abstract: PURPOSE: A mold for manufacturing a mid-sole of shoes is provided to reduce the time of manufacturing via an assembly type mold, and to save the waste of energy via the rapid cooling of the mold. CONSTITUTION: The mold for manufacturing a mid-sole of shoes comprises a thin upper mold(1) and a thin lower mold(2), on which a recess(3) is formed on the whole, a compression mold(4) detachable to the upper and the lower molds, and a middle mold(5) capable of dividing into a left foot piece(8) and a right foot piece(9). The left foot piece and the right foot piece are separated from the heel to toes. A vertical penetrating hole(6) is drilled through the upper mold, the middle mole, and the lower mold. Also, a mold fixing device is provided out of the molds.
Patent KR-20000077027-A (KR)
Title: 음극 재료 및 이를 혼입한 비수성 전해질 전지
IPC: H01M4/36
Filed: 2000-04-14
Abstract: 본 발명은 리튬이 도핑/탈도핑될 때 일어나는 활성 물질의 체적 변화를 방지하여 사이클 작동에 대한 저항을 향상시킬 수 있는 음극 재료에 관한 것이다.  음극 재료는 비-탄소 재료의 평균 입도가 R M 이고 탄소 재료의 평균 입도가 R C 이라고 할 때 R M /R C 비가 1 이하이고, 비-탄소 재료의 중량이 W M 이고 탄소 재료의 중량이 W C 이라고 할 때 W M /W C 비가 1 이하인 비-탄소 재료 및 탄소 재료의 혼합물, 또는 규소 화합물의 평균 입도가 R Si 이고 탄소 재료의 평균 입도가 R C 이라고 할 때 R Si /R C 비가 1 이하인 규소 화합물 및 탄소 재료의 혼합물을 포함한다.