baber/WOPTO huggingface dataset:
Patent KR-19990030493-A (KR)
Title: 통신망을 이용한 자동 판매기 사용 관리방법 및 그 시스템
Filed: 1999-01-28
Abstract: 본  발명은  이동  통신기기와  자동  판매기를  무선으로  연결하는  한편  자동  판매기와  관리  시스템을  연결하며,  상호  통신  가능하도록  송수신  데이터를  변환하여  주는  셀룰러  모듈;  메인  콘트롤러의  제어하에  관리  시스템을  자동  호출하기  위한  다이얼링을  수행하는  한편,  이동  통신기기로  자동  응답  메시지를  출력하는  셀룰러  콘트롤러  모듈;  제품의  재고량,  내부온도,  문의  개폐상태,  제품의  판매시각과  판매량,  외부로부터  가해지는  충격  등을  감지하는  감지수단;  상기  감지수단에  의해  감지되는  감지  데이터를  관리  시스템으로  전송하고  관리  시스템의  명령  데이터와  이동  통신기기의  키  입력에  대응되게  자동  판매기의  동작을  제어하는  메인  콘트롤러;  및  메인  콘트롤러에  의해  관리  시스템으로부터  전송되는  명령  데이터와  이동  통신기기에  의해  결정되는  상황을  표시하면서  자동  판매기의  작동과  제품을  투출하기  위한  동작을  조절하는  표시  및  구동수단을  구성함으로써,  무선  통신기기로  자동  판매기로부터  제품을  구입할  수  있을뿐만  아니라,  통신망을  통해  자동  판매기의  동작과  판매량  및  재고량을  파악할  수  있는  것이다 .
Patent KR-19990082703-A (KR)
Title: 기계식프로포셔너
IPC: G05D11/02
Filed: 1999-02-19
Abstract: 기계식 프로포셔너에는 공기 조작식 왕복 피스톤 펌프 아래에서 요크에 의해 함께 연결된 2개의 펌프 로우어들이 제공된다. 펌프들은 일정 부분들이 중첩될 수 있도록 엇갈려 배치됨으로써, 중심간 거리가 최소화될 수 있다.  혼합 매니폴드는 용이하게 처분 가능하고 대체 가능한 부분인 매니폴드의 출구에서 혼합 재료가 정적 혼합기로 들어갈 때까지 혼합 재료가 혼합 매니폴드와 접촉되지 않도록 동심원적으로 구성되어 있다.  혼합 매니폴드 상의 퍼지 용제 밸브들에는 각각의 손잡이들의 연장부가 각각 제공된다.  어느 한 퍼지 밸브가 개방 위치에 있다면, 매니폴드 입구에서 A 및 B 측면 밸브들을 조작하는 별도의 연동 손잡이가 개방되는 것이 방지된다.  유사하게, A 및 B 측면 밸브들을 조작하는 연동 손잡이가 개방된다면, 퍼지 밸브들은 개방될 수 없다.
Patent KR-20000056754-A (KR)
Inventor: KANG KWANG OK
IPC: F24C15/20
Filed: 1999-02-25
Abstract: PURPOSE: A filter apparatus for microwave oven having combined use as a range hood is provided to accomplish simplified structure and reduced cost while utilizing only a photocatalytic plasma filter. CONSTITUTION: In a microwave oven having combined use as a range hood comprising a flow channel(4) between an outer cabinet(1) and an inner cabinet(2), an air inlet(9) arranged at a lower surface of the outer cabinet(1) so as to allow an air to flow into the channel(4), and an air outlet arranged at a front upper surface of the cabinet(1) so as to discharge the air, a filter apparatus comprising a photocatalytic plasma filter(15) disposed in an appropriate position within the channel(4). When an air containing smell content and oil content is flowed into the channel(4) through the air inlet(9), the photocatalytic plasma filter(15) is applied with a high voltage and generates a plasma. Subsequently, the filter(15) shows an oxidation reaction utilizing thus-generated plasma as an energy source, thereby decomposing the smell content and oil content contained in the air.
Patent KR-20000061263-A (KR)
Title: 작업차
Filed: 1999-03-25
Abstract: 농업용 트랙터 등의 작업기에 있어서, 전차륜에 대하여 구동력을 전달하는 전륜변속장치에는, 전차륜을 후차륜과 실질적으로 동속으로 구동하기위한 등속클러치와, 전차륜을 후차륜보다 실질적으로 고속으로 구동하기위한 증속클러치가 설치되어 있다. 
     본 발명의 전륜변속장치에서는, 등속클러치와 증속클러치가, 동축심상에 설치되어 있다. 이 전륜변속장치는, 또, 축심에 따라 변위하여, 등속클러치와 증속클러치를 선택적으로 기능시키는 시프트부재와, 이 시프트부재를 축에 따라서 이동시키는 엑츄에이터를 구비하고 있다.
Patent KR-20000061877-A (KR)
Inventor: LEE JUN BAE
IPC: H01J9/227
Filed: 1999-03-31
Abstract: PURPOSE: A manufacturing method of a fluorescent film for cathode ray tube and a cathode ray tube having a fluorescent film according to the method thereof are provided to manufacture a cathode ray tube having a superior characteristic of brightness and contrast. CONSTITUTION: A manufacturing method of a fluorescent film for a cathode ray tube includes the following steps. On the face plate(11) a filter solution is spreaded, containing a mixing pigment of a primary color(red) and a secondary color(blue), and a channel solution, and dry. Making a red with blue filter film(42b) on the spot of the primary, and secondary colors and a black matrix by exposing in part. Then, spreading a composition containing a green filter film(42a) on the film(42b) and dry. Making a green fluorescent film(12b) by an exposure and development. Completing a fluorescent film(42) by exposing and drying a blue and red fluorescence in order. It is preferable to use the fluorescence without pigment.
Patent KR-19990046650-A (KR)
Title: 세제용비누제조방법
IPC: C11D13/00
Filed: 1999-04-10
Abstract: 본 발명은 미세하게 분쇄시킨 숯 가루를 세제에 함유시킴으로서 피부에 대한 자극성을 최소화 시킴과 아울러, 세척력이 향상될수 있도록 한 숯이 함유된 주방용 세제 제조방법에 관한 것으로, 이는 장작으로 태워서 만들어진 숯을 분쇄기를 통해 미세하게 분쇄시켜 주는 분쇄공정과; 상기 분쇄공정을 통해 미세하게 분쇄된 숯가루 850gr과 물 2Kg, 중성세제 3Kg, 규산소다(SiO2 Co3) 27Kg, DDPA(Sodium Tritoly Phosphate) 3Kg, 망초(Sodium Sulfate) 27Kg을 교반기내에 혼합되도록 투입시켜 20 - 30분 정도의 시간에 걸쳐 혼합이 이루어지도록 하는 1차 배합공정과; 상기 1차배합 공정이 완료된 배합물에 라스(LAS) 40Kg의 량을 별도로 투입시켜 준 상태에서 5 - 10분 정도의 시간에 걸쳐 교반기를 재차 가동시켜 배합물에 라스가 고르게 혼합이 이루어지도록 한 다음 배합이 완료된 액체의 세제를 용기에 충진시켜 준 상태에서 경화시켜 주므로서 고형의 세제가 완성되도록 한 것을 특징으로 한다.
Patent KR-20000072903-A (KR)
Inventor: KWON JAE CHEOL
IPC: H01L23/04
Filed: 1999-05-03
Abstract: PURPOSE: A lead on chip(LOC) package is provided to prevent a passivation layer adjacent to a column fuse box from being damaged, by changing the format of a polyimide tape applied to a package assembly line without changing a semiconductor design and a semiconductor manufacturing process. CONSTITUTION: A lead on chip(LOC) package comprises a semiconductor chip(60), a polyimide tape(70), a plurality of leads(80), a bonding wire and a package body(90). The semiconductor chip comprises a plurality of chip pads(62), a plurality of column fuse boxes(66) and a passivation layer(64). The pluralities of chip pads are formed along a central portion of an active surface. The plurality of column fuse boxes are formed toward the chip pads on the active surface on both sides of the chip pads with the chip pads as the center, having a predetermined interval from each other. The passivation layer covers the active surface except the chip pads and column fuse boxes. The polyimide tape is a double side adhesive tape adhered to the passivation layer on both sides of the chip pads, covering each column fuse boxes. The pluralities of leads are adhered to the polyimide tape. The bonding wire electrically connects the chip pad with the lead. The package body is made by encapsulating a lead portion with molding resin wherein the lead portion is connected to the semiconductor chip and bonding wire.
Patent KR-20000073258-A (KR)
Inventor: LEE GI SEOK
IPC: G06F3/14
Filed: 1999-05-08
Abstract: PURPOSE: A method for implementing an editing function for a user defined menu is provided for enhancing a compatability by adapting to a product. CONSTITUTION: A linked list structure which is one of the basic structures of a S/W is provided. An object oriented programming technique is used for thereby editing a menu by a user with respect to a GUI. The link links the objects. When a button is pressed, the current screen is changed to the linked screen by providing a button and a link between the screens. The list is a group having a sequence of the objects and forms one entity based on a coupling of the objects and groups. According to the GUI S/W implemented by the object oriented programming technique, a function, namely, method is provided in the menu screen for performing the object of the window.
Patent KR-20000073552-A (KR)
Inventor: PARK JAE HONG
IPC: H04N1/387
Filed: 1999-05-12
Abstract: PURPOSE: A method for scanning a certain area in a composite device with a flat-bed type is provided to scan a desired area of a manuscript quickly and correctly by enabling the coordinate of a desired read area to be recognized based on the scale of surface where the manuscript is mounted. CONSTITUTION: If an operation mode of a composite device is set to a scan mode, it is determined whether a scanning area is a part of whole manuscript or equals to the whole area capable of being scanned(S100). If the scanning area is part of whole manuscript or does not equal thereto, the coordinates of the scanning area, comprised of horizontal and vertical coordinates for the scanning area at the scale thereof, is recognized, and then inputted via an operation panel to obtain scanning data(S200). If the scanning area equals thereto, the whole scanning area is scanned and thereby the scanning data is obtained(S300). A digital signal processing operation is executed for the scanned data in response to a use's instruction(S400). One of a digital copy function, a storing function and a fax transmission function is performed for the processed data.
Patent KR-20000073765-A (KR)
Title: Gypsum-bonded investment
Inventor: PARK SU GEUN
IPC: B22C1/04
Filed: 1999-05-14
Abstract: PURPOSE: A gypsum-bonded investment is provided to improve the degree of size precision of a cast body and the appearance of the surface by sufficiently compensating casting contraction of cast metal. CONSTITUTION: In gypsum-bonded investment for precision casting of cast metal, division gypsum and cristobalite are contained in a mixing ratio corresponding to the contraction characteristic for compensating the cast contraction of cast metal. The mixing ratio of division gypsum and cristobalite is 30-40wt% of division gypsum and 60-70wt% of cristobalite when using gold and silver alloy as a cast metal.
Patent KR-19990088533-A (KR)
Title: 반도체처리액용냉각가열장치
IPC: F28F21/02
Filed: 1999-05-25
Abstract: 본 발명은 부식성 약액에 대하여 내식성이 높고 유해불순물질이 녹여져 나올 우려가 없는 반도체 처리액용 냉각가열장치를 제공한다. 이를 위하여 열교환기판 (3)을 그라파이트기판(3A)에 있는 처리액 접촉면측에 불소수지시트(3B)를 열용착하여 형성한다.
Patent KR-20000005746-A (KR)
Inventor: DRONGGEE JUSEPPE
IPC: F28F3/08
Filed: 1999-05-31
Abstract: PURPOSE: A portable radiator is provided to operate easily, to improve a convective movement and a heat exchange, and to increase the efficiency of the radiator. CONSTITUTION: A portable radiator contains:a main body(2) formed by a first metal plate(3) and a second metal plate(4) combined together for containing a central unit(5) containing a circulating fluid heated to a fixed temperature by a heating instrument(6); and a hub(7) which is a path of the heated fluid for circulating
Patent KR-20010000990-A (KR)
Inventor: KIM SEONG YEON
IPC: H01J29/02
Filed: 1999-06-01
Abstract: PURPOSE: A vibration reducer of a color CRT(Cathode Ray Tube) is provided to minimize operating time by reducing vibration on the left/right sides of a mask concentrically and to enhance quality of CRTs and workability in a manufacturing process. CONSTITUTION: A vibration reducer(102) is formed in an opened-square bar. Holes(101) are formed at both sides of a non-effective portion(103b) of a shadow mask(03) to accept the vibration reducer. To increase reduction efficiency, the vibration reducer has the intermediate portion contacted with the shadow mask after passing the holes and both ends welded to a frame(107). The holes are rubbed against the side of the vibration reducer by the thickness of the shadow mask when the shadow mask starts to vibrate. Thus, vibration is reduced. The remainder of vibration is delivered to the central portion and are reduced.
Patent KR-20010002125-A (KR)
Inventor: EITSUKA HITOSHI
IPC: H05B41/24
Filed: 1999-06-11
Abstract: PURPOSE: A lighting apparatus is provided to obtain an excellent luminance and maintain a uniform luminance when intermittently lighting a fluorescent lamp. CONSTITUTION: An inverter receives a DC power to generate a high pulse voltage necessary for lighting a fluorescent lamp. A lamp current detecting resistance(60) changes a current flowing in the fluorescent lamp into a voltage. The first lamp current detecting circuit(40) detects the mean value of lamp currents from voltages descended at both ends of the lamp current detecting resistance(60). A control circuit(30) interrupts the DC current flowing into the inverter as a load according to an output of the second lamp current detecting circuit(50) and a lighting signal to adjust a luminance, and controls the dimension of a voltage or a frequency into the inverter according to an output from the first lamp current detecting circuit(40). The second lamp current detecting circuit(50) has a time constant smaller than that of the first lamp current detecting circuit(40).
Patent KR-20010003172-A (KR)
Inventor: KIM KYOUNG KEN
IPC: F16H1/28
Filed: 1999-06-21
Abstract: PURPOSE: A rotation power increasing apparatus is provided to increase rotation output by double by directly connecting input parts of industrial equipments such as vehicles to output parts of rotation power generating elements such as motors, thereby saving electricity and oil. CONSTITUTION: In a rotation power increasing apparatus, a driving shaft(6) is coupled with a motor or an output part of an engine. If the driving shaft rotates forward, small gears(30,31) coupled with large gears(34,35) engaged with pneumatic gears(10,11) mounted on driving plates rotates forward, and simultaneously driving plates(2,3) fixed with the small gears rotates forward, so that a large gear(39) rotates reversely. Such rotation force is transmitted to an output gear(41) via a central shaft(8) fixed by a key(48) and small coupling gears(36,37) engaged with the output gear rotates reversely. The rotation force is further transmitted to coupling gears(32,33) fixed in output plates(4,5) to rotate forward and transmitted to an output shaft(9). The force reduced through the rotation between large and small gears is added to the lever force corresponding to distances between central gear shaft and outer shafts and reaches an output shaft as stronger rotation force.
Patent KR-20010003538-A (KR)
Inventor: LEE BYEONG GIL
IPC: A23L2/38
Filed: 1999-06-23
Abstract: PURPOSE: Provided is a beverage containing helium gas, which changes drinker's voice funny. Helium gas is not harmful to human, and very stable inert gas. CONSTITUTION: Helium gas is dissolved into beverage under high pressure. Once a user who drinks this helium contained beverage says, helium gas is earlier discharged from lungs than air, so voice is changed.
Patent KR-20010010132-A (KR)
Inventor: CHUN JEONG HWAN
IPC: H01L23/40
Filed: 1999-07-16
Abstract: PURPOSE: A preheating apparatus for an encapsulation process of a semiconductor package is provided to prevent a mother board from being bent in performing a preheating process of the mother board for encapsulation. CONSTITUTION: A preheating apparatus for an encapsulation process of a semiconductor package comprises the first package equipment group and the second package equipment group. The first package equipment group attaches a plurality of semiconductor chips to a mother board(110) having a plurality of identical circuit patterns and connects the circuit pattern and the semiconductor chip. The second package equipment group receives the mother board and performs an encapsulation. The preheating apparatus further comprises a mother board supporting unit, a heat generating unit(146) and a transfer unit(144) between the first and second package equipment groups. At least one mother board supporting unit is stacked to expose top and bottom surfaces of the mother board. The heat generating unit heats the mother board at the top and bottom surfaces of the mother board. The transfer unit transfers the mother board to the second package equipment group.
Patent KR-20010017196-A (KR)
Inventor: CHO GEON HO
IPC: G11B7/1353
Filed: 1999-08-09
Abstract: PURPOSE: An optical pickup device is provided to detect relative inclination between an object lens and a recording medium without using a separate tilt sensor. CONSTITUTION: An optical pickup device includes an optical path converting instrument(50), an object lens(70) concentrating incidence beam on a recording medium(30), a main optical detector(81) receiving the incidence beam for detecting information signal and/or error signal, and an inclination detect instrument(83) receiving the beam reflected from a protecting layer(33) for detecting inclination of the recording medium. Herein, inclination of the recording medium is detected by detecting the beam reflected from surface(33a) of protecting layer or a recording surface(31) of the recording medium. Therefore, relative inclination between the object lens and the recording medium is detected regardless of size of inclination.
Patent KR-20010018761-A (KR)
Inventor: AHN SEONG SUN
IPC: F24C15/00
Filed: 1999-08-21
Abstract: PURPOSE: A power supplying device is provided to prevent an accident caused by an instable electric contact by intercepting current unless a power cord is completely combined with an inlet socket in case of separating the power cord from a microwave oven as a hood. CONSTITUTION: A power supplying device comprises an inlet socket(200) molded in one side of a microwave oven as a hood; a power cord(100) separately molded from the microwave oven with a power cord plug(110); and a switching device(240) turned on when the power cord plug is completely inserted into the inlet socket. Thus, current is supplied to the microwave oven when the switching device is turned on, but current is intercepted in case of an incomplete contact between the power cord plug and the inlet socket.
Patent KR-19990078965-A (KR)
Filed: 1999-08-25
Abstract: 본 발명은 개인이 휴대하고 다니면서 언제 어디서나 손쉽게 자외선 지수를 측정할 수 있게 하여 자외선으로 인한 피부과적 질환을 사전에 예방할 수 있고, 대도시 등과 같은 대기오염이 심한 곳에서 자외선으로 인한 대기의 오존의 발생을 미리 예측하여 오존으로 인한 호흡기 손상을 예방할 수 있는 휴대/장착용 자외선 측정기에 관한 것으로, 태양 광선중 자외선 영역대의 광 파장을 흡수하여 전기적 신호를 발생시키는 광검출 센서부와, 상기 광검출 센서부에서 입사된 자외선 광량에 따라 출력된 전기적 신호 레벨과 각각의 스텝에 해당하는 기준레벨을 갖는 비교기를 연결시켜 상호 일치하는가를 판정하는 비교 회로부와, 입사된 자외선 광량에 따라 자외선 지수를 아날로그 또는 디지탈로 표시하여 주는 디스플레이부와, 상기 비교수단에서 출력된 각각의 신호를 입력으로 하여 상기 디스플레이부를 구동시키는 구동 회로부를 포함하여 이루어지는 것을 특징으로 한다.
Patent KR-20000028618-A (KR)
Inventor: HAYASHI MASAKI
IPC: H03M13/29
Filed: 1999-08-26
Abstract: PURPOSE: A device for controlling transmitting electric power is provided to maintain the communication quality of user information stably and to control the transmitting electric power in the base of the detected quality of data from a small repeating number. CONSTITUTION: A received signal is inputted to an SIR(Signal to Impairment Ratio) measuring unit(101) and a repeating decode unit(102). Herein, the SIR measuring unit measures the SIR in the base of the received signal, and the repeating decode unit decodes in the base of the received signal for outputting the result to a FER(Frame Error Ratio) measuring unit(103). Also, a comparing unit(105) compares the measured SIR with a standard SIR for controlling the command of a transmitting electric power control transmitted to a receiving apparatus. Herein, if the measured SIR is lower than the standard SIR, the command increasing the transmitting electric power. Therefore, the FER is measured by extracting the decode result in a certain repeating number before reaching the repeating number of realizing desired communication quality.
Patent KR-20010019799-A (KR)
Inventor: PYUN SANG YOOL
IPC: A23L3/358
Filed: 1999-08-30
Abstract: PURPOSE: A preparation method of multipurpose magnetized ceramic powder having active function to human body, deodorization, sterilization and far-infrared emission is provided by magnetizing sintered ceramic powder comprising ceramic powder having magnetic force, tourmaline and sepiolite. CONSTITUTION: The method comprises the steps of: mixing 60-100pts.wt. of sintered ceramic powder, 10-40pts.wt. of tourmaline and 10-20pts.wt. of sepiolite; pressing; sintering at 600-690deg.C for 1-5hrs.; grinding to 200-500 mesh of size; magnetizing with 1200-1400gauss. The above sintered ceramic powder is prepared by mixing 65wt.% of mineral stone(called macbansuk) having a size of 250-350mesh, 35wt.% of sericite and adding water; aging for 3days, then forming; sintering at 720-790deg.C for 4-6hrs.; grinding to 230-550mesh of size; magnetizing with 800-1200gauss.
Patent KR-20010019876-A (KR)
Inventor: KWON HYEOK SEONG
IPC: H04N5/44
Filed: 1999-08-31
Abstract: PURPOSE: A device and method for displaying an initial screen of a digital broadcasting receiver are provided so that a user can easily enjoy various initial screens, by storing new downloaded images on an image ROM, and displaying a data of the image ROM as the initial screen. CONSTITUTION: A general digital broadcasting receiver further includes an image ROM(10) for downloading and storing initial screen images from an external device(broadcasting network, communication service server, personal computer, etc.) through a communication unit(5). Firstly, an access to the image ROM(10) by other processes is intercepted, and an image downloading medium is selected. Thereafter, an initial screen image is selected from the images downloaded from the medium. A magnitude and contents of the selected image are compared with the residual capacity of the image ROM(10) and the contents of the previously-stored image. When the magnitude of the image is greater than the residual capacity of the image ROM(10), or when the identical image exists in the image ROM(10), the user selects whether to download the image. If so, the new image is downloaded. When the downloading operation is finished, the access to the image ROM(10) by the other processes is permitted. Thereafter, the initial screen image is output under the control of a central processing unit.
Patent KR-20000023020-A (KR)
Title: Linker binding carriers for organic synthesis, their production and use
Inventor: NAGAI KATSUNORI
IPC: C07C317/14
Filed: 1999-09-09
Abstract: PURPOSE: A linker binding carrier for organic synthesis, method for producing the same and use thereof are provided which can be generally applied to synthesize various synthetic compounds. CONSTITUTION: The carrier represented by the formula; A-Y-Z-W-(SO2X)m in which A is a carrier, X is a leaving group, Y is a bond or spacer, Z is a divalent group, W is a substitutable aromatic ring in case Z is an electrophobic divalent group, W is an additionally substitutable aromatic ring after it has substituted to an electophilic group, and m is 1 or 2, is described. Various kinds of organic compounds having different substituent groups can be manufactured effectively using the carrier or salt thereof.
Patent KR-20010026947-A (KR)
Inventor: LEE CHUING SAM
IPC: A23L33/00
Filed: 1999-09-09
Abstract: PURPOSE: Provided is a method for manufacturing a health food which complements physiological functions of a human body and prevents or treats arthritis and nerve systems without causing harmful effects on humans. CONSTITUTION: A method for manufacturing a health food contributing to treating ailments is characterized by the following steps: i) drying Salicomia herbacea, Houttuynia cordata, chitin, chitosan, germs of rice, and Equisetum arvense L.; ii) grinding and mixing 30-50wt% of Salicomia herbacea, 15-30wt% of Houttuynia cordata, 30-50wt% of chitin/chitosan, 5-15wt% of germs of rice, and 3-10wt% of Equisetum arvense L.; and iii) mixing the resultant mixture with water to manufacture a 15-20g of a pill or to make a capsule containing 10-20g of powder.
Patent KR-20010027093-A (KR)
Title: Disc brake
Inventor: KWON YEONG SIN
IPC: F16D49/00
Filed: 1999-09-10
Abstract: PURPOSE: A disc brake informs replacement time of a brake pad more accurately and easily so as to prevent the degradation of a brake and safety accidents and is of noncontact type so as to reduce damage of a disc. CONSTITUTION: A disc brake comprises a disc(2), a caliber(4), a piston(8), a brake pad(12) and a pad abrasion sensing device. The disc(2) is fixed to the wheel side connected to a wheel and rotates together. The caliber(4) is fixed to the car body side. The piston(8) installed to one side of the caliber(8) is inserted into a cylinder(6) supplied with hydraulic pressure and compress the disc(2). The brake pad(12) is adhered to one side of the piston(8) rubs against the disc(2). The pad abrasion sensing device comprises a proximity sensor(24), a metal plate(22) and a warning device(28). The proximity sensor(24) is fixed to the disc(2) to inform the abrasion condition of the brake pad(12) to a driver. The metal plate(22) is fixed to the brake pad(12) to interact with the proximity sensor(24). The warning device warns driver when the output voltage of the proximity sensor(24) is checked in an electronic control unit(ECU).