baber/WOPTO huggingface dataset:
Patent KR-20040041942-A (KR)
Title: A configuration method of frame for reverse random access in an orthogonal frequency division multiple access system
Inventor: JUNG SU JEONG
IPC: H04J11/00
Filed: 2002-11-12
Abstract: PURPOSE: A method for constructing the frame to be arbitrary connected in an inverse direction at an orthogonal frequency division multiple access(OFDMA) system is provided to overcome the problem to fix the portion of the message transmission without depending on the message transmission status due to the characteristics of OFDMA. CONSTITUTION: A method for constructing the frame to be arbitrary connected in an inverse direction at an orthogonal frequency division multiple access(OFDMA) system is characterized in the OFDMA includes an indication transmission part, wherein the indication transmission part is provided with a plurality of slots. The indication transmission part sets each of the slot periods to the same of the packet length, divides slots including an arbitrary connection message transmission time in response to the position inside of each slot period of the frame and slots including an arbitrary connection preamble transmission period and indicates the message transmission to the slots to transmit an arbitrary connection message.
Patent KR-20040042130-A (KR)
Title: Stacked Variable Inductor
Inventor: KIM CHEON SU
IPC: H01F21/12
Filed: 2002-11-13
Abstract: PURPOSE: A stack type variable inductor is provided to be capable of considerably reducing the surface area of an IC(Integrated Circuit) chip. CONSTITUTION: A stack type variable inductor is provided with the first to N-th inductor formed at stacked metal layers and connected with each other in series, the first and second port(Port1,Port2) connected with the uppermost inductor and the lowermost inductor, and at least one switching device(6). At this time, one end portion of the switching device is connected with one out of the ports and the other end portion of the switching device is connected with one out of neighboring serial connection terminals between the first to N-th inductor. Preferably, the metal layer-stacked structure is formed by using a CMOS(Complementary Metal Oxide Semiconductor) technique and an MOSFET(Metal Oxide Semiconductor Field Effect Transistor) is used as the switching device.
Patent KR-20040042362-A (KR)
Title: computer system and method for displaying video signal thereof
Inventor: CHO SEONG YUN
IPC: G06F3/14
Filed: 2002-11-14
Abstract: PURPOSE: A computer system and a video signal displaying method thereof are provided to use a display device as a mirror by displaying a video signal of a video camera to the display device with the simple button operation. CONSTITUTION: A display mode selecting button(15) selects the video signal display of the video camera(29) by installing to the display part. A controller(21) operates a video camera driver program(28) stored in a memory(27) when the video camera display is selected through the display mode selecting button. The display part includes a microcomputer(16) to transmit the selection signal of the display mode selecting button to the computer main body through a DDC(Display Data Channel) communication pin installed to a video connector(11) connecting the display part and the computer main body.
Patent KR-20040043633-A (KR)
Title: Apparatus with means for inserting automatically the check sample into welding machine clamp
Inventor: KIM HUI YEONG
IPC: G01N1/04
Filed: 2002-11-19
Abstract: PURPOSE: An apparatus for loading/unloading a sample for measuring a clamping state of a welder is provided to precisely and periodically load/unload the sample when checking deformation of a clamp. CONSTITUTION: An apparatus for loading/unloading a sample for measuring a clamping state of a welder includes a strip cutter. A rail is provided in front of the strip cutter. A rotating plate supporter(100b) for supporting a rotating plate(100a) moves along the rail. A wheel is provided at a lower portion of the rotating plate supporter(100b) such that the rotating plate supporter(100b) moves along the rail. A circular support gear(108) is fixed to an upper portion of the rotating plate supporter(100b) and a bearing(114) is accommodated in the circular support gear(108).
Patent KR-20040043858-A (KR)
Title: Electrical Rice Pot Heater
Inventor: PARK BYEONG UK
IPC: A47J27/086
Filed: 2002-11-20
Abstract: PURPOSE: An electric rice pot is provided to improve the warm keeping efficiency and to reduce the production cost by simultaneously controlling a cooking heater and a top heater and optimizing the capacities of two heaters. CONSTITUTION: A main body forms the appearance of an electric rice pot. An inner container is loaded inside the main body and contained a cooked material. A cooking heater(H1) is wound in the lower part of the inner container or the inner wall of the main body to cook or to keep warm the cooked material inside the inner container. A top heater(H2) is installed in a lid of the main body to improve the water forming event of an electric rice pot. A microcomputer(20) outputs on/off control signals of the heaters according to the advanced processes of the electric rice pot. A switching unit(30) is turned on/off according to the control signals and contained a photo triac(P30) to be connected with the heaters in a parallel. Thereby, the warm keeping efficiency is improved and the production cost is reduced.
Patent KR-20040045096-A (KR)
Title: A louver protecting structure of airconditioner
Inventor: CHO BYEONG YEOL
IPC: F24F13/08
Filed: 2002-11-22
Abstract: PURPOSE: Protecting structure of a louver for an air conditioner is provided to prevent breakage or wrong operation of the louver by reinforcing the driving shaft and the shaft hole forming part with the protecting member. CONSTITUTION: A louver protecting system of an air conditioner is composed of a louver(60) arranged in a discharge port for discharging air with turning and composed of a driving shaft including a shaft hole; a motor(70) having a rotating shaft combined with the shaft hole of the driving shaft; and a protecting member(90) mounted to the outer periphery of the driving shaft. The arrangement angle is changed with turning the louver around the driving shaft and the supporting shaft in actuating the motor. The protecting member prevents wear of the driving shaft by rotating with the driving shaft in turning the louvers, and restricts bending of the driving shaft or breakage of the shaft hole forming part by supporting the driving shaft and the shaft hole forming part in applying impact to the driving shaft.
Patent KR-20040046349-A (KR)
Title: Waterproof admixture for concrete having a corrosion inhibition function
Inventor: KIM WON HWA
IPC: C04B111/26
Filed: 2002-11-27
Abstract: PURPOSE: Rustproofing and waterproofing admixture composition used in the production of concrete is provided to inhibit corrosion of steel in reinforcement concrete, and decrease permeability and absorption by containing bipolar inorganic salt and tannin besides a conventional waterproofing composition. CONSTITUTION: The admixture composition for concrete contains a waterproofing and a rustproofing composition. The waterproofing composition is composed of 40-60wt.% of fly ash(1-150micrometer) and 6-12wt.% of fumed silica(0.1micrometer) as artificial pozzolan activators, 0.5-5wt.% of redispersible powder polymer such as vinylacetate homopolymer, 5-11wt.% of long chain fatty acid-based metal salt such as salt of stearic acid or oleic acid, and 1-6wt.% of high performance water reducing agent such as polynaphthalene sulfonate. The rustproofing composition is composed of 1-5wt.% of tannin as an antioxidant and 18-34wt.% of bipolar inorganic salt such as calcium nitrite or sodium nitrite offering nitrite ions(NO2-) which react with Fe+2 to form a stable compound, Fe2O3 forming films on the surface of corroded steel, wherein the amounts of the component are based on 100wt.% of total composition.
Patent KR-20040050406-A (KR)
Title: Semiconductor devices having capacitor dielectric and methods of fabricating the same
Inventor: LEE YUN JEONG
IPC: H01L27/108
Filed: 2002-12-10
Abstract: PURPOSE: A semiconductor device having a capacitor dielectric layer and a manufacturing method thereof are provided to prevent leakage current from flowing through grain boundaries and restrain an oxide layer from being formed on a lower electrode due to the diffusion of oxygen atoms under a post heat treatment by using a metal oxynitride layer. CONSTITUTION: A semiconductor device is provided with a semiconductor substrate(50), a transistor formed on the semiconductor substrate, and a lower electrode(56) electrically connected with a source region of the transistor. The semiconductor device further includes a capacitor dielectric layer for enclosing the lower electrode and an upper electrode formed on the capacitor dielectric layer. At this time, the capacitor dielectric layer is made of a metal nitride layer(58) and a metal oxynitride layer(60).
Patent KR-20040054132-A (KR)
Title: lighting lamp module using power source of mobile phone
Inventor: LEE BOG HYOUNG
IPC: H04M1/02
Filed: 2002-12-17
Abstract: PURPOSE: A lighting lamp module using power of a portable wireless telephone is provided to be connected with a system connector or an earphone jack of a portable wireless telephone without being applied with power, and to turn on a lighting lamp with the power, so that a user having the wireless telephone can easily light up the module. CONSTITUTION: A system connector portion(10) is connected with a system connector. A module body(20) is combined with the system connector portion(10), and couples a lighting lamp module with a body of a portable wireless telephone. At least one lighting lamps(41_1-41_n) are attached to the module body(20). A switch(21) turns on/off the light lamps(41_1-41_n). The system connector portion(10) has a positive terminal(11) and a negative terminal(12) for receiving a power supply voltage and a ground voltage from a specific pin of the system connector.
Patent KR-20030055127-A (KR)
Title: Composition for anti-hyperlipidemia
Inventor: LEE SUNG HYUNG
IPC: A61K36/605
Filed: 2002-12-23
Abstract: PURPOSE: An antihyperlipidemia composition comprising a herbal extract as a main component is provided. Therefore, the composition prevents the occurrence of antihyperlipidemia and reduces the risk of the recurrence after the treatment thereof while preventing and treating antihyperlipidemia by remarkably reducing neutral fat and cholesterol levels in blood. CONSTITUTION: A composition contains an extract of one or more plants selected from the group consisting of 10 to 24% by weight of Folium Mori, 9 to 22% by weight of Astragali Radix, 7 to 19% by weight of Crataegus pinnatifida Bunge, 4 to 11% by weight of Cassiae semen, 4 to 11% by weight of Puerariae Radix, 5 to 12% by weight of Salviae Radix, 5 to 12% by weight of Polygoni multiflori Radix, 4 to 11% by weight of Polygonati Rhizoma, 4 to 10% by weight of Nelumbo nucifera Gaertner, 4 to 8% by weight of Lycii Fructus, 1 to 4% by weight of Poria cocos, 2 to 4% by weight of Atractylodis Rhizoma Alba, 5 to 11% by weight of Coicis Semen and 3 to 8% by weight of Artemisia capillaris Thunb.
Patent KR-20040057165-A (KR)
Title: A floor structure reduced thickness with using H-steel beam and deep deck
Inventor: OH SANG HUN
IPC: E04B5/40
Filed: 2002-12-24
Abstract: PURPOSE: A floor structure with reduced thickness is provided to reduce the thickness of a floor layer by coupling a deep deck to an upper flange of an H-beam. CONSTITUTION: The floor structure with reduced thickness by coupling a deck with an upper flange of an H-beam contains H-beams(30) installed between a column and another column, a deck(31) placed on the H-beams(30) along the H-beams(30), and concrete(33) placed on the upper part of the deck(31). Connecting members(32) are adhered on both flanges of the H-beams(30) to be projected to the outside of the H-beams(30) and coupled with the deck(31).
Patent KR-20040057219-A (KR)
Title: The system and method under the computer based examination which is the adaptive system
Inventor: CHO MUN HYEON
Filed: 2002-12-26
Abstract: PURPOSE: A system and a method for a computer based certification examination by adjusting the difficulty of a problem are provided to extract/evaluate the problems fit to a capability of each examinee by differently drawing out the next problem from a database of server whether the examinee presents a wrong or a right answer. CONSTITUTION: The system collects the examinee as a member. An examination authority installing a local server constructs the information related to a customer. Online test applicants solve the problem without a download delay by receiving the next problem while the online test applicants solve the problem. The more efficient and accurate evaluation is enabled by solving only the problems adjusting the difficulty depending on the capability of the applicant.
Patent KR-20040058522-A (KR)
Title: Apparatus for processing audio signal in wireless headset
Inventor: JUNG JI UN
IPC: H04R3/00
Filed: 2002-12-27
Abstract: PURPOSE: An audio signal-processing unit of a wireless headset is provided to reduce the total size and the manufacturing cost by unifying chips for performing an audio band codec function and a stereo DAC function. CONSTITUTION: An audio signal-processing unit of a wireless headset includes an L-channel audio signal processor and an R-channel audio signal processor. The L-channel audio signal processor(100) is used for receiving a digital stereo L signal from a receiver, converting the digital stereo L signal to an analog stereo L signal, and the analog stereo L signal to a transmitter. The R-channel audio signal processor(200) is used for receiving a digital signal from the receiver, converting the digital signal to an analog signal, receiving an analog stereo R signal from an audio source, converting the analog stereo R signal to a digital stereo R signal, and outputting the digital stereo R signal to the transmitter.
Patent KR-20030057486-A (KR)
IPC: G03F7/075
Filed: 2002-12-28
Abstract: 본 발명은 산소 플라즈마 내성, 해상성, 보존 안정성 등이 우수한 포지티브형 레지스트 조성물 등을 제공하는 것을 목적으로 한다.  본 발명의 포지티브형 레지스트 조성물은 하기 화학식 1로 표시되는 알칼리 가용성 실록산 중합체와 1,2-나프토퀴논디아지드기를 갖는 감광성 화합물을 함유하고, 1 ㎛의 도포막의 i선 투과율이 5 내지 60 ％인 것을 특징으로 한다. 
     
       
         
       
     
     상기 화학식 1 중, R 1 및 R 2 는 1가 유기기를 나타내고, 서로 동일할 수도 있고 상이할 수도 있으며, A는 하기 화학식 2로 표시되는 페놀성 수산기를 갖는 기를 의미하고, a+b+c=1이다. 
     
       
         
       
     
     상기 화학식 2 중, R 3 , R 4 및 R 5 는 수소 원자 또는 1가의 유기기를 나타내고, 서로 동일할 수도 있고 상이할 수도 있으며, m은 정수를 나타내고, n은 1 내지5의 정수를 나타낸다.  0.25≤a≤0.60이고, 0≤c≤0.25인 형태, 산소 플라즈마 에칭 처리되는 레지스트막에 사용되는 형태 등이 바람직하다.
Patent KR-20040059923-A (KR)
Title: A method for the preparation of a solid titanium catalyst for olefin polymerization
Inventor: JANG HO SIK
IPC: C08F4/654
Filed: 2002-12-30
Abstract: PURPOSE: Provided is a method for preparing a solid titanium catalyst for olefin polymerization, which represents high activity and high stereo-regularity by controlling the particle size and shape of the catalyst. CONSTITUTION: The method for preparing a solid titanium catalyst for olefin polymerization comprises the steps of: (1) dissolving a magnesium halide compound in a mixed solvent containing at least one alcohol and/or oxygen-containing compound to form a magnesium compound solution; (2) reacting the magnesium compound solution with an organic acid halide compound to form a carrier; and (3) reacting the carrier with a titanium compound to form a solid titanium catalyst for olefin polymerization.
Patent KR-20040060102-A (KR)
Title: Device for reflect type display using of inorganic electro-luminescence sheet
Inventor: NAM MI SUK
IPC: G02F1/13357
Filed: 2002-12-30
Abstract: PURPOSE: A reflective display apparatus by using an inorganic electro-luminescence(EL) flat fluorescent sheet is provided to separate a light source as an outside type and use an inorganic flat fluorescent sheet as the light source, thereby capable of implementing the display of lightweight and thin type. CONSTITUTION: A cover member(302) is formed at a side of a reflective LCD(Liquid Crystal Display)(301) and covers the reflective LCD(301). An inorganic electric field flat fluorescent sheet(303) is mounted at a rear surface of the cover member(302) and supplied to the reflective LCD(301) as an outside light source. The cover member(302) is mounted at a side corner of the reflective LCD(301) and the inorganic electric field flat fluorescent sheet(303) is mounted to the surface covered on the LCD(301). The LCD(301) comprises an upper polarizing plate for converting a polarizing characteristic of incident light. An upper substrate has a color filter layer so that the polarized light has a specific wavelength among RGB. A liquid crystal layer changes a polarized direction of the light having the specific wavelength according to the applied voltage. A lower substrate has a TFT(Thin Film Transistor) controlling transmission volume of the polarized light. A lower polarizing plate polarizes the light from the lower substrate. A reflective plate reflects the light.
Patent KR-20040061647-A (KR)
Title: Extension type integration remote controller and method of operating remote controller
Inventor: HA HOE SEONG
IPC: G09G5/00
Filed: 2002-12-31
Abstract: PURPOSE: An extensible integrated remote control and a method for operating the same are provided to reduce the number of buttons of an integrated remote control by installing additional buttons used for controlling specific devices only at an additional unit detachably combined with a basic unit. CONSTITUTION: A key input unit(24) has a plurality of common input selecting buttons(14a) to be used in common to control a plurality of devices. A remote control transmitting part transmits a key code corresponding to each device generated according to the selected value of the common input selecting buttons. A basic unit(10) has an expansive connecting terminal part having data lines for receiving the corresponding key code generated according to the selected value of the specific input selecting button of an additional unit(20).
Patent KR-20020015073-A (KR)
Title: Naphthol derivatives
IPC: C07D263/52
Filed: 2001-05-15
Abstract: Novel naphthol derivatives, and various azo compounds and metal complexes prepared by using the derivatives are provided. The instant invention provides naphthol derivatives represented by general formula (1); <CHEM> wherein at least one of Y1 and Y2 is a group represented by formula (2); <CHEM> wherein X1 is -O-, -S- or -NH-; and Z is an optionally substituted aromatic group or heterocyclic group having conjugated double bonds, and salts thereof; mono-, bis-, and trisazo compounds prepared from the derivatives; and metal complexes containing the derivatives as the ligand.
Patent KR-20020038739-A (KR)
Title: 1,4-dihydropyridine-5-carboxylic acid ester derivatives and method for the preparation thereof
IPC: C07D405/12
Filed: 2000-08-23
Abstract: The present invention relates to ester derivatives of 1,4-dihydropyridine-5-carboxylic acid of formula (I) wherein R1, R2 and R3 may be a coumarin group. These compounds possess an anti-viral activity. Most of the anti-viral compounds known in the art are nucleoside-derivatives. Various viruses become resistent against these. Because the compounds according to the invention are not nucleoside-derivatives, they form a suitable alternative. The invention also relates to a method of preparing the anti-viral substances according to the invention.
Patent KR-20020026384-A (KR)
IPC: H04W36/16
Filed: 2001-07-10
Abstract: 원격 유닛(101)은 기지국(103)에 대한 제어 채널을 모니터하고, 프로브 메시지(301)를 기지국(103)에 보낸다. 기지국(103)은 로케이션 정보(305)와 함께 프로브 메시지를 제어기(115)에 포워딩한다. 제어기(115)는 원격 유닛(101)에 대한 근사 거리를 결정한다. 근사 거리에 기초하여, 제어기(115)는 적어도 하나의 부가 사이트를 결정한다. 채널 할당 메시지(309 또는 401)는 원격 유닛(101)에 포워딩되고, 그 메시지는 적어도 하나의 부가 사이트와 기지국(103)의 적어도 하나와 관련된 하나 이상의 트래픽 채널들을 포함한다.
Patent KR-20020059443-A (KR)
IPC: A61F13/49
Filed: 1999-10-01
Abstract: 피부보호 조성물에 대한 차단시이트를 갖는 흡수제품이 개시되어 있다.  상기 흡수제품은 신체면 및 가멘트면을 갖는다.  상기 흡수제품은 흡수코어를 포함한다.  상기 흡수제품의 적어도 일부에는 피부보호 조성물이 제공된다.  상기 흡수제품은 차단시이트를 갖는다.  상기 차단시이트는 피부보호 조성물이 통과하여 이동하는 것을 감소시키도록 처리된다.
Patent KR-20020054353-A (KR)
Title: Method for Producing Polyether Polyols
IPC: C08G65/26
Filed: 2000-11-09
Abstract: The invention relates to a method for producing polyether polyols with dense molar mass distribution and low viscosity by polyaddition of alkylene oxides to starter compounds having active hydrogen atoms by means of DMC catalysis. The inventive method is further characterized by a substantially reduced induction period.
Patent KR-20020067546-A (KR)
IPC: A61K31/454
Filed: 2000-12-07
Abstract: 본 발명은 하기 화학식 I의 화합물 및 그의 거울상이성질체, 부분입체이성질체 및 제약상 허용가능한 염에 관한 것이다: 
     <화학식 I> 
     
       
     
     화학식 I의 화합물들은 단백질 키나제 억제제이며, 증식성 질환, 예를 들면, 암, 염증 및 관절염의 치료에 유용하다.  또한, 이들은 알쯔하이머병, 화학요법으로 유도된 탈모증, 및 심혈관계 질환의 치료에도 유용할 수 있다.
Patent KR-20030022770-A (KR)
IPC: G01R33/09
Filed: 2000-08-17
Abstract: 자기 감지 소자는 결합 분석물내 자기 입자들의 존재를 검출한다. 자기 감지 소자는 물질이 층의 평면 내에 원형 자기 모멘트를 가지는 초기 상태를 가지는 전기 전도성 강자성 물질의 적어도 한 평면층을 가진다. 자기 감지 소자는 그것에 부착된 제1특정 결합 군의 분자들을 가진다. 장치는, 또한 자기 감지 소자가 결합 분석 과정 동안 노출되는 유체 테스트 매체를 포함하고 있다. 상기 유체 테스트 매체는 상기 테스트 매체내 분석물의 양에 관련하여 분석 동안 고정되어 지는 자화가능한 입자들을 포함한다. 자화가능한 입자 및 자기 감지 소자의 상대적인 크기 및 상기 자기 감지 소자상의 제1특정 결합 군의 분자들의 위치는, 자기 입자가 자기 감지 소자에 관하여 고정되어질 때, 자기 입자의 방사형 프린징 필드가 전기 전도성 강자성 물질의 적어도 한 층의 자기 모멘트가 원형으로부터 방사형으로 이동되게 하여, 자기 감지 소자의 전기 저항의 검출가능한 변화를 초래하도록 선택된다.
Patent KR-20020079892-A (KR)
IPC: A61K31/165
Filed: 2001-02-21
Abstract: 본 발명은 혈액 응고 단백질의 억제를 위한 신규한 화합물, 특히 화학식 I의 말론산 유도체에 관한 것이다. 
     화학식 I 
     
       
     
     위의 화학식 I에서, 
     R(1), R(2), R(3), R(4), R(5) 및 R(6)은 특허청구범위에서 정의된 의미를 갖는다. 
     화학식 I의 화합물은 혈액 응고 효소 인자 Xa의 억제제이다.  본 발명은 또한 화학식 I의 화합물을 제조하는 방법, 인자 Xa 활성을 억제하는 방법과 혈액 응고를 억제하는 방법, 인자 Xa 활성의 억제에 의해 치료되거나 예방될 수 있는 질환, 예를 들면, 혈전색전성 질환의 치료 및 예방에 있어서의 화학식 I의 화합물의 용도 및 이러한 질환에 사용되는 약제의 제조에 있어서의 화학식 I의 화합물의 용도에 관한 것이다.  본 발명은 또한 혼합물로 또는 달리 불활성 담체와 함께 화학식 I의 화합물을 함유하는 조성물, 특히 약제학적으로 허용되는 담체 물질 및 보조제 물질과 함께 화학식 I의 화합물을 함유하는 약제학적 조성물에 관한 것이다.
Patent KR-20040064775-A (KR)
Inventor: CHOI KWANG JIN
IPC: G06F17/50
Filed: 2003-01-10
Abstract: PURPOSE: An immediate-buckling model, a hysteretic model, a textile simulation model based on the same, and a computer-readable recording medium storing a program executing the same are provided to realistically simulate a wrinkling appearance and the hysteresis of the textile without using micro-meshing and a time-step by using the model not having the buckling instability. CONSTITUTION: The simulation uses the immediate-buckling model immediately occurring the buckling, not compressed, if a compressive forces is applied to both ends of a transformation unit approximating the textile. A tool for modeling a hysteretic characteristic between a curvature and the moment representing a buckling form includes the 'n' slip units(1-3) and the 'n' springs(K1-K4). The slip units form the 'n' pairs of a spring-slip unit by respectively connecting to the spring in parallel. The 'n' pairs of the spring-slip unit are connected to one spring(K0) in serial.
Patent KR-20030062262-A (KR)
Title: 적층형 압전 세라믹 소자의 제조방법
IPC: H01L41/39
Filed: 2003-01-13
Abstract: 본 발명은 높은 기계적 강도를 가지며, 또한 우수한 압전 특성 및 신뢰성을 갖는 적층형 압전 세라믹 소자의 제조방법을 제공하는 것을 목적으로 한다. 
     본 발명의 구성에 따르면, Pb원소의 화합물을 함유하고 있는 압전 세라믹 재료의 세라믹 그린시트상에, Ag를 주성분으로 하는 도체를 포함하는 도전성 페이스트를 도포하고, 상기 세라믹 그린시트를 겹쳐 쌓아서 적층체로 하는 공정과; 상기 적층체를 소성시의 승온 과정에서의 산소 농도가 90체적% 이상이고, 또한 유지 과정과 강온(降溫) 과정에서의 산소 농도가 5체적%∼15체적%가 되는 분위기 중에서 소성하는 공정;을 구비하는 것을 특징으로 한다.