baber/WOPTO huggingface dataset:
Patent KR-20010025479-A (KR)
Title: Advertising method by electronic mailing service
Inventor: KWON JAE SEUNG
Filed: 2000-12-29
Abstract: PURPOSE: An advertisement method is provided to insert selectively an advertisement and message into an e-mail according to an inclination of a user, and offer a corresponding point to the user if the user wishes to send a return mail. CONSTITUTION: The method comprises steps of a mail sender visiting a mail service site or executing a mail software such as Outlook Express(S2), a service site transmitting and storing the mail with an advertisement attached at a mail directory of a mail receiver in case that the mail sender selects an attachment of an advertisement(S6), the mail receiver checking the corresponding mail(S8), the service site determining if the mail receiver is a member(S10), the service site offering the corresponding point to the mail sender and the mail receiver if the mail receiver is a member(S16), and the service site storing the corresponding point at a database of a web server and a server of an advertisement owner(S14).
Patent KR-20020058932-A (KR)
Title: Method for improuing available freguencg range and gain
Inventor: YOO BYEONG HUN
IPC: H01P7/00
Filed: 2000-12-30
Abstract: PURPOSE: A method is provided to achieve an improved antenna efficiency and reduce the size of antenna by preventing unbalance between feeder lines or antenna. CONSTITUTION: A method is characterized in that a space(3) is formed between a fixing structure including a connector connected to a matching circuit, and a helical antenna(2) attached to the fixing structure. The spiral antenna is attached to the fixing structure, in such a manner that one or more contact points(4) and spaces are formed at the fixing structure. The frequency and gain changes in accordance with the width of the space formed between the fixing structure and the helical antenna.
Patent KR-20010021966-A (KR)
Title: 동시 액세스 및 리프레시 동작하는 다이내믹 랜덤 액세스메모리 시스템, 및 그 시스템을 사용하는 방법
IPC: G11C11/405
Filed: 1999-05-17
Abstract: 메모리(200)는 2-트랜지스터, 1-캐패시터 메모리 셀(301)로 이루어진 로우와 칼럼의 어레이(201)를 포함하는데, 각각의 로우 셀은 제1 및 제2 어드라인(303a와 303b)에 결합되고 각각의 칼럼 셀은 한쌍의 비트라인(302a와 302b)에 결합된다.  리프레시 회로(208)는 제1 워드라인(303a)과 선택된 로우를 활성화시키고 각각의 칼럼의 비트라인중 제1 비트라인을 통해 상기 로우의 셀(301)을 리프레시한다.  데이터 액세스 회로(202, 204)는 제2 선택된 로우의 제2 워드라인(303b)를 활성화시키고 상응하는 칼럼내의 제2 비트라인(302b)를 통해 제2 로우의 선택된 셀에 동시에 액세스한다.
Patent KR-20010030629-A (KR)
IPC: A61P43/00
Filed: 1998-09-18
Abstract: 본 발명은 하기 화학식 I의 콜레시스토키닌(CCK)의 티아졸 유도체 작용제, 이를 함유하는 약학적 조성물의 제조방법 및 약제제조를 위한 방법에 관한 것이다. 
     (화학식 I) 
     
       
     
     (상기 화학식 I에서, R 1 은 치환된 페닐기이고, R 2 는 CH 2 -R 7 , (CH 2 ) 2 -R 7 , S-CH 2 -R 7 , CH 2 -S-R 7 및 (C 5 -C 8 )알킬에서 선택된 그룹이고, R 7 은 (C 5 -C 7 ) 시클로알킬기이고, R 3 은 하기와 같고, 
     
       
     
     (여기서 R 8 은 (CH 2 ) n R 15 또는 이다) 또는 
     
       
     
     (여기서 R 15 은 COOH 또는 COO(C 1 -C 4 )알킬이다))
Patent KR-20010024363-A (KR)
IPC: F01N3/20
Filed: 1999-08-03
Abstract: 직접 분사 엔진용 촉매 라이트-오프(light-off) 장치는 배기 가스를 변환시키기 위해 촉매 컨버터(22)의 온도 상태를 판단하기 위한 온도 상태 판별기(31), 분사기(11)로부터의 연료 분사를 제어하기 위한 연료 분사 제어기(33), 및 점화 시기 제어기(35)를 포함한다.  촉매가 가열되지 않은 상태에 있을 때 그의 온도는 그의 활성 온도보다 낮으며, 국부적으로 균일하지 못한 혼합물을 생성하는 후기 분사 사이클과 균일하고 희박한 혼합물을 생성하는 조기 분사 사이클을 포함하는 흡입 행정에서 점화점까지의 주기 동안 연료 분사 제어기(33)는 분사기(11)가 분할 분사하도록 하며, 점화 시기 제어기(35)는 점화점을 지연시킨다.
Patent KR-20010024397-A (KR)
IPC: B60W10/10
Filed: 1998-10-01
Abstract: A power train control (1) for a vehicle (8) or an automotive machine with a prime mover (5) with a governor (2) and a continuously variable transmission (7) with a ratio control (3). The power train control (1) coordinates the ratio control and the governor issuing a theoretical speed n_mot_nom to the governor (2) for the prime mover (5) and a nominal transmission ratio i_nom to the ratio control (3). The power train control (1) is designed as a combination of two governors, the transmission output speed governor (9) and the governor (10) for relief of the prime mover (5). The transmission output speed governor (9) receives the transmission output speed n_out as a control variable and generates the nominal speed n_mot_nom for the prime mover (5) as a manipulated value, and the governor (10) for relief of the prime mover (5) by the speed n_mot of the prime mover (5) as a control value and a transmission ratio correction value DELTAi as a manipulated value. The nominal transmission ratio i_nom is specified by addition of this correction value DELTAi to a coarse transmission nominal ratio i_0_nom, with the latter being specified as function of the nominal speed n_mot_nom of the prime mover (5) and the nominal transmission output speed n_out_nom set by the driver (4).
Patent KR-20010032982-A (KR)
Title: 파라핀족 탄화수소의 대응 올레핀 전환용 촉매
IPC: C07C11/06
Filed: 1998-11-23
Abstract: 본 발명은 탈수반응을 통하여 파라핀족 탄화수소를 대응 올레핀으로 전환하는 하소된 촉매에 관한 것이다.  이 촉매는 산화성, 열안정성 담체로서, 이 담체 물질상에 적용되어 있는 촉매적 활성 성분을 함유하며, 하기 조성을 가진다 (전체 촉매 중량 대비 중량%) a) Pt, Ir 및 촉진제로서 작용하는, 다음 6가지 물질 군에서 선택된 원소들의 조합에서 선택된 적어도 하나의 원소 0.2 내지 2.0%: b) Ge, Sn, Pb, Ga, In, Tl 중 최소한 한 개의 원소 0.2 내지 5.0%. c) Li, Na, K, Rb, Cs, Fr 중 최소한 한 개의 원소 0.1 내지 5.0%. d) Fe, Co, Ni, Pd 중 최소한 한 개의 원소 0.2 내지 5.0%. e) P 1.0 내지 5.0%. f) Be, Mg, Ca, Sr, Ba, Ra 또는 란탄족 중 최소한 한 개의 원소 0.2 내지 5%. g) Cl 0.1 내지 2%.
Patent KR-20010024739-A (KR)
IPC: F01N3/08
Filed: 1998-12-11
Abstract: When determining the amount of a reducing agent solution to be introduced into the exhaust gas of a combustion system, in particular of a diesel engine, for catalytically reducing the nitrogen oxides by the SCR process, the concentration of the reducing agent in the reducing agent solution as well as the parameters characterizing the operating state of the combustion system, the exhaust gas and/or the catalyst are taken into consideration. As a result, the safety margin with respect to a theoretically optimum amount to be introduced that is required to avoid a leakage of reducing agent can be reduced, whereby the conversion rate of the nitrogen oxides is improved.
Patent KR-20010024765-A (KR)
IPC: C22B21/00
Filed: 1998-12-18
Abstract: A metallic coating layer is removed at least partly from scrap metal pieces having a core and the coating layer on the core. The coating layer has a lower melting temperature than the core. The scrap metal pieces are agitated in a container with abrading elements so as to cause multiple collisions, whereby the coating layer is at least partly removed. During the agitating the container temperature is a temperature T in the range Ts(coat)<T<TL(core) wherein Ts(coat) is the solidus temperature of the coating layer and TL(core) is the liquidus temperature of the core. The agitation may be by rotationally tumbling or shaking the scrap metal pieces and the abrading elements.
Patent KR-20010040421-A (KR)
Title: 싱크로 기구 장착 구동상태 전환장치
IPC: F16H61/32
Filed: 2000-02-03
Abstract: 본 발명은, 싱크로 기구를 사용하여 구동상태의 전환을 행하는 싱크로 기구 장착 구동상태 전환 장치이다. 동일 축상에 설치된 제 1 기어(32) 및 제 2 기어(33)와, 축방향으로 이동하여 제 1 기어(32)와 제 2 기어(33)를 연결 가능하게 하는 기어 연결부재(34)와, 제 1 기어(32)와 제 2 기어(33)와의 사이에 설치된 싱크로 기구(35)를 구비하며, 전동 액추에이터(50)에 의해 기어 연결부재(34)를 이동시킴에 의해, 싱크로 기구(35)에 의해 동기를 취하면서 제 1 기어(32)와 제 2 기어(33)를 연결한다. 그 때, 제어수단(100)에 의해 전동 액추에이터(50)로의 공급 전류를 제어함과 함께, 판정수단(102)에 의해 전동 액추에이터(50)로의 공급 전류치의 변화에 의거하여 싱크로 기구(35)의 동기를 판정한다. 이것에 의해, 전용의 센서나 스위치 등을 마련하는 일 없이 싱크로 기구(35)의 동기 판정을 가능하게 함과 동시에, 부재간의 슬라이드 저항의 개체차나 운전상태의 변화에 대응한 정확한 동기 판정을 가능하게 한다.
Patent KR-20010040424-A (KR)
Title: 공통 데이타교환 게이트웨이의 방법 및 장치
IPC: H04B3/54
Filed: 1999-01-21
Abstract: 하나 이상의 네트워크 프로토콜 및 제어 프로토콜 사이에 데이터를 전달하는 공통 게이트웨이(104)를 설명한다. 각종 프로토콜이 동일한 물리적 네트워크 매체(100) 혹은 개별 네트워크(100,130)에 공존할 수 있다. 게이트웨이(104)를 사용해서 엔드유저는 전통적인 비호환성 네트워크를 공통 접근 중앙접근식 "슈퍼네트워크"로 전환시킬 수 있다. 게이트웨이(104)는 중앙집중식 노드 데이터베이스를 제공하고 연속프로토콜 및 규칙엔진 대상지원 클라스 라이브러리 인터페이스를 지원한다. 중앙집중식 노드 데이터베이스에 대한 고신뢰성 접근 방식은 대기서버 노드에 의한 폴트 허용에 의해 개선된다. 또한 게이트웨이(104)는 전선을 통한 다양한 데이터흐름을 분배시키는 능력도 갖는다. 라우팅 처리기는 TCP/IP 같은 연속데이타 네트워크 서비스를 가상허용한다.
Patent KR-20010042664-A (KR)
Title: 유기 염소 화합물의 분해 처리 방법
IPC: A62D3/37
Filed: 2000-02-14
Abstract: 본 발명은 다이옥신 등의 유기 염소 화합물을 환원적 또는 접촉적으로 분해 처리하는 방법에 관한 것이다.  다이옥신, o-클로로아니솔 등의 유기 염소 화합물을 알칼리 수용액 중에서 환원제 또는 촉매의 존재 하에 분해시킨다.  사용할 수 있는 알칼리는 수산화나트륨, 수산화칼륨, 탄산나트륨, 탄산칼륨 또는 암모니아수이다.  사용할 수 있는 환원제는 히드로설파이트나트륨, 아스코르빈산, 히라진, 히드라진 수화물, 중성 황산히드라진, 탄산히드라진, 티오황산나트륨, 아황산나트륨, 아황산칼륨, 히드로퀴논, 4-메틸아미노페놀황산염 또는 론갈리트이다.  사용할 수 있는 촉매는 활성탄 또는 산화티탄이다.
Patent KR-20020059960-A (KR)
Title: Precasted Concrete using a Fiber Reinforced Concrete and method for construction
Inventor: LEE SEOK TAE
IPC: E01D19/06
Filed: 2001-01-09
Abstract: PURPOSE: A precast floor panel is provided to enhance tensile strength of the floor panel and creep dry-shrinkage property and after completing a structure, to improve management and repairing thereof by applying fiber reinforced concrete. CONSTITUTION: The floor panel comprises floor panels(30,40) having annular parts(43) of backing reinforced bars; and fiber reinforced concrete inside the panels(30,40). The panels(30,40) have multiple rectangular grooves(34) containing bolt groove at lateral side and stud(36) to be coupled to a girder(32) for supporting the panels(30,40) at lower portion. The bolt groove is provided with a leveling bolt to control horizontal error at connection of the floor panels along length of the bridge. The rectangular groove(34) is introduced by mortar(38) after coupling to the stud(36) to be used as the panels(30,40).
Patent KR-20020060017-A (KR)
Title: Anticancer soy sediment (soybean paste) laws govering manufacture.
Inventor: RYU SIN HYUN
IPC: A23L11/20
Filed: 2001-01-09
Abstract: PURPOSE: A process of preparing fermented soybeans(Chungkukjang) by adding a suitable amount of isoflavones to maximize an anticancer effect during the production thereof is provided. Whereby, the product can be effectively used as anticancer food or cancer preventive food. CONSTITUTION: Washed soybean is steamed in an earthenware steamer and the swollen soybean is added with concentrated isoflavones or a soybean embryo, aged at 40 to 45deg.C for 3 to 4 days. Thereafter, the fermented soybean is mixed with a suitable amount of salt, together with garlic, ginger and red pepper paste.
Patent KR-20020063766-A (KR)
Title: Automatic total train control system and method
Inventor: KIM BONG TAEK
IPC: B61L23/14
Filed: 2001-01-30
Abstract: PURPOSE: An automatic total train control apparatus and method is provided to operate train without adding other equipment even in the railway line where radio communication system of communication based train control(CBTC) system is installed. CONSTITUTION: An automatic total train control apparatus comprises a train speed detector; a display/alarm unit for displaying train operation state; an operating/braking unit for operating or braking train; a control unit including a door control circuit and a driver interface; a train operation control card unit including an automatic train stopper card, an automatic train control card, and an automatic train operating card; a total train operation control unit connected to the control unit, display/alarm unit, operating/braking unit and the train speed detector, and which receives information on the actual train speed and target train speed and information on the operation of train, and controls train speed through the operating/braking unit, displays train operation state through the display/alarm unit, and controls other units through the control unit; and an interface unit(56) constituted by a plurality of input/output channels and interposed between the train operation control card unit and the total train operation control unit, wherein the interface unit transmits the information on the train operation received at the train operation control card unit, to the total train operation control unit. The train operation control card unit includes a CBTC card for performing radio communication with the CBTC radio communication system installed on the ground, so as to detect the position of the train and receives the target train speed and information on the train operation from the radio communication system; and a balise card for performing radio communication with the balise equipment installed on the ground, so as to receive/transmit the target train speed and information on the train operation.
Patent KR-20020065004-A (KR)
Title: Optical transmission system
Inventor: KIM JU HWAN
IPC: H04B10/00
Filed: 2001-02-05
Abstract: PURPOSE: An optical transmitting system is provided to save a development cost and improve an after-service and system maintenance by downloading configuration data of a field programmable gate array to equipment installed in a remote place using an FTP(File Transfer Protocol) and using the downloaded configuration data. CONSTITUTION: An optical transmitting equipment(3) connects to an FTP server(1) through an Internet network(2). A DRAM(4), a flash memory(5), and an SPI(Serial Peripheral Interface transmit/receive process) successively connect to the optical transmitting equipment(3) through a temporal buffer(6) under the control of a microprocessor(11). The output of the SPI(7) is transmitted to field programmable gate arrays(8-10) for composing a corresponding field programmable gate array.
Patent KR-20010073065-A (KR)
Title: Method for manufacturing metal case for optical transmitting/receiving module packaging
Inventor: HONG GYEONG TAE
IPC: H01L23/06
Filed: 2001-02-28
Abstract: PURPOSE: A method of manufacturing a metal case for optical transmission and reception module packaging is provided to form an airtight case by using a powder injection method and a sintering method without an additional mechanical process. CONSTITUTION: Iron, nickel, and cobalt powders for composing an ASTM F-15 alloy are mixed uniformly. A feedstock for injection is manufactured by mixing a high molecule binder such as a paraffin wax, polyethylene, and a stearic acid into the mixed powders. An injection mold is manufactured by using the feedstock. The injected molding body is removed by an n-hepthan solution. The remaining binders are removed by a thermal decompression process. A sintering process for the molding body is performed. A nickel plating process and a gold plating process are performed on the sintered body. A glass sealing(2) process is performed. A lid is combined with an upper portion(3) of the metal case.
Patent KR-20020073613-A (KR)
Inventor: DO JEONG YUN
IPC: G02F1/365
Filed: 2001-03-15
Abstract: PURPOSE: An all-optical wavelength converter and converting method are provided to generate efficiently a difference frequency, a cascade process, and the second harmonic wave by using a birefringence phase matching method. CONSTITUTION: A polymer lower cladding(120) is formed on a surface of a silicon wafer(100). A non-linear polymer core(160) is formed from an input terminal to an output terminal on the polymer base cladding(120). The polymer lower cladding(120) and the non-linear polymer core(160) are formed by a spin coating method. A polymer upper cladding(140) is formed on the non-linear polymer core(160) except for the exposed parts of the input terminal and the output terminal by using the spin coating method.
Patent KR-20010091040-A (KR)
Title: Trigger for actuating a bail assembly
Inventor: KANG YOUNG J
IPC: A01K89/02
Filed: 2001-04-02
Abstract: PURPOSE: A trigger for actuating a bail assembly is provided to reduce the whole size of the trigger, thus capable of limiting a centrifugal force required to maintain the balance of the trigger. CONSTITUTION: A rotor assembly(12) for a fishing reel(10) comprises a rotor(16) having a first rotational axis, a bail assembly(14) that is repositionable relative to the rotor between cast and retrieve positions, and a trigger(78) that is movable relative to the rotor around a second axis between normal and actuated positions. The bail assembly is movable from the retrieve position toward the cast position as an incident of the trigger moving from the normal position to the actuated position. The trigger has a forward projecting leg. A gripping portion is applied to the forward projecting leg to facilitate engagement of the forward projecting leg by a user.
Patent KR-20010067945-A (KR)
Title: A fixing device of foot plate by oppressing an aluminium ladder
Inventor: LEE SANG CHOL
IPC: B23P19/00
Filed: 2001-04-09
Abstract: PURPOSE: A device pressing and fixing rungs of an aluminum ladder is provided to enhance productivity and reliability by pressing many rungs on a frame at the same time without an additional ladder tightening process and by accurately placing a punch at the pressing center even with an error in the center of the rung. CONSTITUTION: A rung pressing and fixing device comprises: a ladder settlement frame(22) resting a frame of a ladder with a guide bar guided by the guiding roller of a base(20); a clamping device(26) consisting of a fixing clamp(27) having a clamping recessed portion(27a) fixed to the base for clamping rungs and a movable clamp(29) connected to a piston rod(28a) of a clamping cylinder through a connecting link(32) with a shaft pin(33) and angularly moved from the fixing clamp by a shaft pin(31); a slider(36) on which a punch(21) is mounted by a punch holder(37) on a guide bracket(35) and connected to a punching cylinder(34); a buffering clamp(38) supporting the frame when the punch presses the rung in the slider; and a pushing cylinder and a supporter respectively installed on the right and the left side of the ladder settlement frame.
Patent KR-20020080063-A (KR)
Title: A extraction and prediction method of latent user's preference
Inventor: JUNG JUN
Filed: 2001-04-11
Abstract: PURPOSE: A method for extracting and estimating a latent user attractiveness is provided to enhance an accuracy of an estimation and reduce a performing time through a noise removal and a meaning dimension reduction of an input matrix when a latent user attractiveness is extracted and estimated using a graded evaluation matrix inputted by users. CONSTITUTION: A latent user attractiveness is extracted using an SVD(Singular Value Decomposition) technique, and a noise removal and a meaning dimension reduction of an input matrix are performed. Users are mapped to a meaning dimension space, and the users are expressed as one vector in a reduced dimension space. A distance for indicating a similarity among each user is calculated using the vector for expressing the users. Users who have a low similarity, respectively, are filtered using a predetermined sized critical value for selecting users similar to each user. A weight value is calculated for supplying much influence to similar users. Users' attractiveness with respect to items is calculated using an average of evaluation values including weight values of all similar users.
Patent KR-20010068010-A (KR)
Title: a toothbrush
Inventor: CHOI HYUN JONG
IPC: A46B15/00
Filed: 2001-04-14
Abstract: PURPOSE: Provided is a toothbrush capable of generating various kinds of melody when toothpaste is touched on the brush, which lets children form habit of brushing teeth by themselves by inducing curiosity and promotes health of teeth. CONSTITUTION: The toothbrush comprises a handle(10) composed of a tube body including a speaker(20), a melody chip(21) and battery connected with electric wire therein and a cover(11) at the top, an incline face with a contact point terminal(11a) formed at the front end of the cover and connected with the inside wall of the handle having a contact point terminal with forming a V-shaped groove, and an elastic body(30) fixed at the groove with having a shape corresponding to the shape of groove to let the contact point terminals be contacted resiliently as the groove being narrowed when the brush part is touched.
Patent KR-20010068054-A (KR)
Title: System and method for providing a catalogue of products for promotion in on-line
Inventor: PARK HYEONG JUN
Filed: 2001-04-17
Abstract: PURPOSE: A promotion sales product catalogue service system and method is provided to offer the catalogues for the promotion sales products, e.g. for inducing customers to subscribe for an insurance service so that it makes it easy producing the catalogue and prevent an exposure of the promotion sales product price in a conventional method. CONSTITUTION: The method comprises steps of a management server checking if a connection signal is transmitted from a terminal(S410), the server checking the sort of the connection from the terminal(S420), the server determining an unlimited log-in in the case that the ID and password, input from the terminal, are registered, and determining a limited log-in in the case that the ID and password are not registered(S430), the server offering a catalogue production, a catalogue transmission or a product delivery menu to the terminal in the case that the accessed user is the unlimited log-in user(S440,S450,S460), and the server offering a catalogue transmission or a purchase request input menu for the limited log-in user.
Patent KR-20020081646-A (KR)
Title: Door stopper mechanism of vending machine
Inventor: KIM DEOK MUN
IPC: G07F9/00
Filed: 2001-04-20
Abstract: PURPOSE: Provided is a door fixer in a vending machine which finely divides the opening angle of the door and fixes so that it enables users to fix the door as wanted angle stably in managing the vending machine. CONSTITUTION: The door fixer in the vending machine is characterized by comprising the parts of: a cylinder arm(30) which is combined with the a cabinet(10) at one front edge by a hinge; a piston arm(32) which is placed at the cylinder arm to insert and withdraw and combined with the door at one edge by a hinge; and a fixer which stepwise fixes the piston arm withdrawn from the cylinder arm at the cylinder arm when the door is opened.
Patent KR-20010069633-A (KR)
Title: System and method for domain management over the internet
Inventor: SEO JAE YEONG
IPC: G06F17/00
Filed: 2001-04-24
Abstract: PURPOSE: A system and a method for integratedly managing domains on the Internet is provided to prevent a re-registration period from being exceeded caused by a carelessness of a user by extracting registration information of management-objected domain from a domain registration institution DB and stores the information in a web server and transmitting registration expiring period information to the user through an E-mail or a character message. CONSTITUTION: A member of a web server inputs one's possessed domains and interested domains in a web server using a wire terminal storing a web browser(S5). The web server connects to a domain registration institution server and searches a DB of the domain registration institution and extracting domain registration information of the user wanted domains and stores the information in domain management DB according to members, respectively(S7). The stores information is searched periodically, and if a domain period expiring time is approached, a domain period management message is transmitted to the member's terminal or a mobile phone through an E-mail or a character message(S10). If the member requests an update of the corresponding domain, the web server updates a domain registration period(S12). The cost for updating the domain is requested and the member pays the cost(S16).
Patent KR-20020082672-A (KR)
Title: Apparatus for fabricating a brake pad and method for the same
Inventor: KIM YONG UNG
IPC: F16D69/00
Filed: 2001-04-25
Abstract: PURPOSE: A production device of a brake pad and its method are provided to prevent the weakness of the strength and the crack of a friction material by preventing the residue of gas from the friction material. CONSTITUTION: A pre-former(10) forms a powder friction composite to a pre-forming material. A main former forms the pre-forming material to a friction material for a brake pad by hot-pressing the pre-forming material and a back plate. A cover(120) seals the upper part of the main former. A vacuum device(140) gives vacuum pressure into the cover for exhausting gas to be generated from the pre-forming material at the hot-pressing. By hot-pressing under vacuum, blowholes and cracks are prevented. Moreover, the weakness of the brake pad by the blowholes is prevented.