baber/WOPTO huggingface dataset:
Patent KR-20040025015-A (KR)
Inventor: LEE JAE CHEOL
IPC: H02G7/02
Filed: 2002-09-18
Abstract: PURPOSE: A clamp cover assembly is provided to maintain the airtightness between a cover and an electric wire without an additional sealing member by using a protection cover. CONSTITUTION: A clamp cover assembly includes an insulator connection part(15), an electric wire guide tube(12), a branch tube(11), and a combination part. The insulator connection part(15) is used for guiding a low-voltage insulator(3). The electric wire guide tube(12) is used for guiding a distributed wire(40). The branch tube(11) is used for guiding a branched wire(50). A plurality of screw threads(13) and a plurality of projections(14) are formed on each outer circumference and each inner circumference of the branch tube(11) and the electric wire guide tube(12), respectively. The combination part is combined with the branch tube(11) and the electric wire guide tube(12). A plurality of screw threads are formed on an inner circumference of one side of the combination part in order to be combined with the screw threads(13). A plurality of projections are formed on an inner circumference of the other side of the combination part. The combination part is formed with synthetic resin. A cutting portion of the combination part is combined by a plurality of hooks.
Patent KR-20030024639-A (KR)
Title: Method of manufacturing a semiconductor integrated circuit
Inventor: WAKE MIWA
IPC: H01L27/08
Filed: 2002-09-18
Abstract: PURPOSE: To provide a semiconductor integrated circuit in which timing of a circuit does not change and irregularity of driving capability is not generated when a potential of a retaining substrate is fixed. CONSTITUTION: This method comprises a process for forming a contact hole in a source body connecting region of a transistor which hole penetrates a semiconductor film and a buried insulating film on a retaining substrate and reaches a part of the substrate, a process for forming a thermal oxide film, a process for forming a second conductivity type impurity region reaching the buried insulating film on the semiconductor film in a region for forming a first conductivity type transistor, a process for forming a second conductivity type impurity region in a part on the retaining substrate which faces the second conductivity type impurity region to the insulating film, and a process for etching an interlayer insulating film to be in a size which is concentric with the contact hole and surrounds it.
Patent KR-20040025261-A (KR)
Title: Several layer waterproof construction method
Inventor: JUNG BOK YEONG
IPC: E04D11/02
Filed: 2002-09-19
Abstract: PURPOSE: A multilayer composite waterproofing method is provided to extend the waterproofing period of a concrete structure by improving durability by heightening compressive strength and tensile strength and to improve the waterproofing effect of a concrete structure by restraining a crack in the construction plane. CONSTITUTION: The multilayer composite waterproofing method comprises the steps of: applying waterproofing materials having a permeable waterproofing function such as primer using epoxy as the main component to the appointed thickness(S); applying primary ultra-lightweight mortar which has a waterproofing function and is formed by mixing cement and lightweight aggregate in the appointed ratio on the primer to a thickness of 1.0¯2.0 millimeters(M1); piling up carbon fiber on the primary ultra-lightweight mortar to restrain a crack in the construction plane(I); applying secondary ultra-lightweight mortar on the carbon fiber to a thickness of 1.0¯2.0 millimeters(M2); and applying surface coating agent such as silestone top coat on the secondary ultra-lightweight mortar to a thickness of 0.08¯0.1 millimeters to make the exposed surface smooth(E).
Patent KR-20040026376-A (KR)
Title: Catadioptric system with beam splitter and corrector lens for linear scanning
Inventor: JANG HONG SUL
IPC: G02B17/08
Filed: 2002-09-24
Abstract: PURPOSE: A linear scanning reflection-refraction type optic structure including a beam splitter and a correction lens group is provided to obtain a visual field and correct colors by using the beam splitter and general lenses. CONSTITUTION: A linear scanning reflection-refraction type optic structure including a beam splitter and a correction lens group includes the first correction lens group(L), a beam splitter, and the second correction lens group(G). The first correction lens group(L) is formed with the first to the third correction lenses(L1,L2,L3), which are installed at one side of a reflective optic system of a main mirror(M1) and a sub mirror(M2). The beam splitter and the second correction lens group(G) are installed at one side of the first correction lens group(L) in order to split the beam and separate a focusing side according to channels.
Patent KR-20040032524-A (KR)
Title: Process for preparing sea-island type composite fibers having excellent antimicrobial property and wash durability
Inventor: CHO CHEOL HO
IPC: D01D5/30
Filed: 2002-10-10
Abstract: PURPOSE: Provided is a sea-island type composite fiber which exerts excellent antibiosis and washing fastness effects even with a small amount of porous inorganic ceramic powder. CONSTITUTION: A sea-island type composite fiber is manufactured by compositely spinning an island component of synthetic resin containing porous inorganic ceramic powder and fiber formation synthetic resin, and a sea component of chemical leachate resin. The island component occupies 10-90% of the composite fiber, and the amount of the porous inorganic power in the fiber is 0.1-10wt.%. The fineness of the composite fiber is 2-70 denier, and the particle size of the porous inorganic powder is 1 micrometer or less.
Patent KR-20040040959-A (KR)
Title: Pharmaceutical composition of cephalosporine antibiotics for taste masking
Inventor: HONG CHUNG IL
IPC: A61K47/00
Filed: 2002-11-08
Abstract: PURPOSE: Provided are a pharmaceutical composition of the cephalosporin antibiotics and a method for manufacturing the same, thereby masking a bitter taste of the cephalosporin antibiotics and increasing in vivo absorption of it. CONSTITUTION: A pharmaceutical composition of the cephalosporin antibiotics is characterized by containing a cephalosporin antibiotics particle selected from cefpodoxime proxetil, cefuroxime axetil and cefetamate pivoxyl, with an acidic material selected from hydrochloric acid and weak hydrochloric acid, citric acid and anhydrous citric acid, ascorbic acid, succinic acid, tartaric acid and the like.
Patent KR-20040043688-A (KR)
Title: Surface mountable electrical device for printed circuit board and method of manufacturing the same
Inventor: CHOI SU AN
IPC: H01C7/02
Filed: 2002-11-19
Abstract: PURPOSE: A surface mount type electrical device and a method for manufacturing the same are provided to streamline etching processes for two electrodes and ensure the effective area between a thin film resistor element and the electrodes. CONSTITUTION: A surface mount type electrical device comprises a thin film resistor element(10) having first and second surfaces(12,14) and first and second side surfaces(16,18); a first electrode(20) disposed on the first surface of the thin film resistor element and extended toward the second side surface from the first side surface in such a manner that a certain part of the first surface is exposed; a second electrode(22) disposed on the second surface of the thin film resistor element and extended toward the second side surface from the first side surface; an insulating layer(26) formed on the first side surface, an exposed portion of the first surface of the thin film resistor element, and the first and second electrodes, wherein the insulating layer exposes a certain part of the first electrode; a first conductive layer(30) formed on the insulating layer, and which electrically contacts the exposed portion of the first electrode; and a second conductive layer(32) formed on the insulating layer and the second side surface of the thin film resistor element, wherein the second conductive layer electrically contacts the second electrode at the second side surface of the thin film resistor element, and is electrically separated from the first conductive layer.
Patent KR-20040046039-A (KR)
Title: resin composition with gold dust, method of manufacturing the same and it's use
Inventor: KIM KYOUNG YONG
IPC: C08K3/10
Filed: 2002-11-26
Abstract: PURPOSE: A synthetic resin composition containing gold powder, its preparation method and its use as a food container are provided, to improve antibacterial, deodorizing and infrared ray radiating effects. CONSTITUTION: The synthetic resin composition comprises 10-30 wt% of a gold powder with a size of 1 micrometer; and 70-80 wt% of a common resin. Preferably the common resin is selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadiene-styrene resin. The method comprises the steps of impregnating gold powder into a common resin to firstly mature it; and melt mixing the firstly matured one at a temperature of 180-230 deg.C.
Patent KR-20030019282-A (KR)
Title: Development of alzhemier-inducible cell line by Tet-On with recombinant pCT105 vector in βAPP
Inventor: AHN SEUNG HUI
IPC: C12N15/00
Filed: 2002-11-27
Abstract: PURPOSE: Provided is development of alzheimer-inducible cell line by Tet-On with recombinant pCT105 vector in βAPP. The developed alzheimer-inducible cell line is useful for development of therapeutics of multi-infarct dementia, Alzheimer disease, Parkinson disease, hypothyroidism, etc. CONSTITUTION: A development system contains a recombinant pCT 105 vector selected from Tet-on CT105 as a main system, and if required at least one of vector separated by the solvent selected from water, albumin, an auxiliary agent and a stabilizing agent.
Patent KR-20040048284-A (KR)
Inventor: YANG DONG SEOK
IPC: A43B13/02
Filed: 2002-12-02
Abstract: PURPOSE: Provided are a pair of shoes which generate good odor consistently and functions as indoor de-odorant as well because perfume material is mixed with the materials of the shoes. CONSTITUTION: The method for preparing sole comprises: mixing 0.2-1wt.% of perfume material in process oil when mixing the material for a sole; rotating for 20 minutes at 60-70deg.C in a heated roller; and making dough and molding by molds such as foaming machine, press and mold frame. The sole is selected from a mid-sole(2), an insole(1) and a bottom sole(3).
Patent KR-20040010034-A (KR)
Title: Calculation method for prediction motion vector
Inventor: JUN BYEONG MUN
IPC: H04N19/189
Filed: 2002-12-04
Abstract: PURPOSE: A method of calculating a prediction motion vector is provided to predict a prediction motion vector of a block to be coded using motion vector information of a neighboring block and improve coding efficiency. CONSTITUTION: Median operation is carried out using motion vectors of blocks surrounding a block to be coded, and a prediction motion vector of the block to be coded is calculated. When the surrounding blocks have motion vectors, directivity information of a reference picture to which each of the motion vector refers is obtained, and one of the motion vectors of the surrounding blocks is selected using the obtained directivity information. The median operation including the selected motion vector is performed to obtain the prediction motion vector of the block to be coded.
Patent KR-20030051263-A (KR)
Title: Beveling machine for lcd panel glass
Inventor: SHIRAI AKIRA
IPC: B24B9/10
Filed: 2002-12-10
Abstract: PURPOSE: To carry out the side grinding and the corner grinding of a plate glass by a set of chamfering machine, and also to alter time for grinding from a side to a corner in accordance with the length of side length, by moving a rotational grinding stone for the corner in a back and forth direction in compliance with the side length of the plate glass. CONSTITUTION: The machine for chamfering the edge of the plate glass comprises a running object 31 provided so as to run retractably by the suitable running means, the retaining stock 37 with a turning function 45 provided so as to retain a mounted plate glass A on this running object by the retaining means, and a rotational grinding stone 40 provided so as to grind the edge of a parallel face in the running direction of the plate glass outside the running way of the running object. Further the machine has a rotational grinding stone 52 for the corner for grinding the corner of the plate glass on a moving carriage by providing a moving carriage 51 made to slide for approaching and breaking away by a suitable running means against a retaining stock to the front of a turning position in the retaining stock through numerical control.
Patent KR-20040051418-A (KR)
Inventor: BAE DONG SEOK
IPC: B65D19/34
Filed: 2002-12-12
Abstract: PURPOSE: A pallet is provided to reinforce the strength of the pallet for loading freight. CONSTITUTION: The pallet comprises an upper plate portion(110) on which the freight is loaded; a number of ankle portions(111); and a number of upper plate reinforcing plates(112) installed between the upper plate portion and the ankle portion. A number of lower plate reinforcing plates(113) are attached to the bottom of the ankle portions, and the ankle portions are provided with a first attachment groove to which each of the upper plate reinforcing plate is placed and a second attachment groove to which each of the lower plate reinforcing plate is placed.
Patent KR-20040053857-A (KR)
Title: Multi ear jack
Inventor: CHOI GYEONG JIN
IPC: H04M1/72409
Filed: 2002-12-16
Abstract: PURPOSE: A multi-ear jack is provided to perform multimedia functions of various external accessories by forming an ear jack as one terminal. CONSTITUTION: A multi-ear jack includes an ear jack, an ADC, a memory, a regulator, and a control unit. The ear jack(40) is used for providing functions of two or more external accessories. An ADC(Analog-Digital Conversion) unit is used for converting resistances of the external accessories to ADC values. A memory is used for storing the ADC values of the external accessories. A regulator(70) is used for supplying the power to the external accessories. A control unit(10) controls a process for converting the resistances of the external accessories to ADC values and determines what kinds of external accessories are inserted into the ear jack.
Patent KR-20030053046-A (KR)
Title: Optical disk drive and servo control method
Inventor: OISHI YASUO
IPC: G11B7/09
Filed: 2002-12-20
Abstract: PURPOSE: An optical disk apparatus and a servo control method are provided to prevent oscillation and breakdown of servo control in a transient response state. CONSTITUTION: In an optical disk apparatus, an optical detector converts a reflected laser beam from an optical disk into an electric signal, and tracking control and focus control are executed by using the variation of the electric signal. The optical disk apparatus comprises a control section which takes a timing of variation in signal amplitude of tracking error signal as process start timing to meet a demand for data recording or a demand for data reading, and a hold timing signal output circuit(125) which generates a mask signal to hold the tracking control in timing before or after variation of the signal amplitude.
Patent KR-20040058623-A (KR)
Inventor: PARK JUN HONG
IPC: B60W40/10
Filed: 2002-12-27
Abstract: PURPOSE: A rollover control system in a vehicle is provided to detect driving conditions and estimate a slip angle of the driving vehicle so as to determine a rollover state in the vehicle, thereby preventing the rollover state in the driving vehicle. CONSTITUTION: On starting a vehicle, steering angles and wheel revolutions is inputted into a vehicle dynamics processor(210) to detect a roll angle, roll ratio, yaw ratio, and vehicle speed to transmit to a Kalman filter applying unit(220). A slip angle is calculated in the Kalman filter applying unit using the roll angle, roll ratio, yaw ratio, and vehicle speed. Using the slip angle, a tire shear force is calculated in a tire dynamics processor(230). A free-rollover subroutine is performed to determine the rollover state by comparing the tire shear forces. The shear velocity is calculated to re-input the roll angle, roll ratio, yaw ratio, and vehicle speed into the Kalman filter applying unit. Using the shear velocity, the rollover decision subroutine is performed to determine the rollover state.
Patent KR-20040059930-A (KR)
Title: Method for reducing self-aligned bitline contact resistance using Co-Ni silicide
Inventor: CHA TAE HO
IPC: H01L21/28
Filed: 2002-12-30
Abstract: PURPOSE: A method is provided to reduce contact resistance of a self-aligned bit line by removing a native oxide between an LPC(Landing Poly-plug Contact) and a silicon substrate using a Co1-xNixSi2 layer. CONSTITUTION: An insulating layer(4) with a self-aligned bit line contact is formed on a silicon substrate(1). Cobalt and nickel are deposited on the resultant structure including the bit line contact. A Co1-xNixSi2 layer(8) is formed on the exposed silicon substrate in the bit line contact by annealing. The non-reactive cobalt-nickel compound is removed by wet-etching.
Patent KR-20040061212-A (KR)
Title: cenesthesic game apparatus
Inventor: PARK SANG JUN
IPC: A63F13/812
Filed: 2002-12-30
Abstract: PURPOSE: A physical interactive game device is provided to make a user to more feel as if it were real by detecting the operation trace or position of game tools and reflecting the same in the game. CONSTITUTION: The physical interactive game device comprises a movement input unit being moved within the three-dimensional space by a gamer for outputting a movement trace and a movement acceleration signal as a wireless signal; wireless sensing units(215l,215r) positioned in an appropriate place in a game device body to have a capture range which is peculiar to the wireless signal; a controlling unit for determining the movement trace and position and the movement acceleration signal of the movement input unit by the sensing signal provided in the wireless sensing unit and for reflecting the same on the game screen; and a monitor for displaying the game screen provided by the controlling unit.
Patent KR-20040061755-A (KR)
Title: Transflective lcd device
Inventor: AHN IN HO
IPC: G02F1/1335
Filed: 2002-12-31
Abstract: PURPOSE: A semi-transmission type LCD device is provided to realize LEDs into three types such as R, G, and B luminous colors, thereby remarkably improving a color reproduction rate of the semi-transmission type LCD device which uses an existing CCFL(Cold Cathode Fluorescent Lamp) as a back light. CONSTITUTION: An LCD panel(P) is comprised. An LED back light unit is located under the LCD panel(P). The LED back light unit consists of a light guide plate for back light and plural LEDs. The plural LEDs are configured in R, G, and B color types, and are replaced for an existing CCFL. The LEDs used as light sources of the LED back light unit have an RGB ratio of 3:8:4 to realize the highest color reproduction rate.
Patent KR-20040062181-A (KR)
Inventor: PARK JI UNG
IPC: G02F1/13
Filed: 2002-12-31
Abstract: PURPOSE: An LCD(liquid crystal display) panel guide combining structure is provided to easily replace a cell guide with new one. CONSTITUTION: An LCD panel guide combining structure includes a cell guide(330), a cylinder(300), and a fixing bar(350). The cell guide guides a panel to remove a chip located on the back side of an LCD panel and includes a locking member(302) and reference pin(301) arranged at the edge of the cell guide. The cylinder includes a locking device(305) and a reference hole respectively corresponding to the locking member and reference pin. The fixing bar is located on the cylinder and fixes the combination of the locking device and locking member.
Patent KR-20020019559-A (KR)
Title: 내연 기관의 배기 환류 장치 및 배기 환류 방법
IPC: F02M25/07
Filed: 2001-03-30
Abstract: 터보 급과기를 가지는 내연 기관의 배기 환류 장치는 그 안에 제공되는 터빈을 가지는 배기 통로 및 그 안에 제공되는 압축기를 가지는 흡기 통로를 포함하고 압축기의 하류측 상의 흡기 통로 내에 형성되는 개구는 배기가 환류될 때 개방됨으로써, 압축기의 하류측 상의 흡기가 대기로 방출되고 흡기 통로 내부의 부압이 낮아지기 때문에 배기 통로 내부의 배기압과 흡기 통로 내부의 부압 사이의 압력차가 증가되어 NOx 배기량은 배기 환류율의 향상을 통해 저감될 수 있다.
Patent KR-20020059344-A (KR)
IPC: B25J15/00
Filed: 2000-05-02
Abstract: 본 발명은 모든 유형의 산업에서 금속, 판지, 유리, 플라스틱 목재와 같은 모든 유형의 물품을 수송하기 위한 모듈러 그립퍼(modular gripper)에 관한 것이다. 이는 여러 유형의 알루미늄 섹션 및, 여러 유형의 경합금으로 제조된 기계 물품으로 이루어지며, 이는 이의 형태에 의해 신속하게 조립될 수 있고, 수송하고자 하는 모든 물품을 취급할 수 있다(도 1 참조). 특히, 본 발명은 모든 유형의 산업에서 금속, 판지, 유리, 플라스틱, 목재 등등과 같은 모든 유형의 물품으로 이루어진 물품을 그리핑하고자 한다.
Patent KR-20020035123-A (KR)
Title: 압축형 데이터 송신 방법 및 송신기
IPC: H04H20/46
Filed: 2000-08-23
Abstract: 디지털 오디오 방송 시스템을 위한 압축형 데이트를 송신하는 방법은 오디오 신호를 나타내는 디지털 정보를 생성하는 단계와, 모뎀 프레임 내에서 디지털 정보에 할당될 비트 수를 산정하는 단계와, 산정된 수의 비트 내에서 디지털 정보를 인코딩하여 인코드형 데이터를 생성하는 단계와, 인코드형 데이터로부터 선택된 비트를 제거하는 단계와, 인코드형 정보에 대하여 디지털 메시지에 대응하는 비트를 부가하여 합성 모뎀 프레임을 형성하는 단계와, 합성 모뎀 프레임 비트를 포맷하여 포맷형 합성 모뎀 프레임 비트를 생성하는 단계와, 포맷형 합성 모뎀 프레임 비트를 송신하는 단계를 포함한다.  본 발명은 또한 이러한 방법을 수행하는 송신기를 포함한다.
Patent KR-20020047134-A (KR)
IPC: G06F11/10
Filed: 2000-08-17
Abstract: 인코딩을 하는 동안, 마이크로프로세서(201)는 표준 리드-솔로몬 인코딩 기법에 따라 Ym을 계산한다.  그런 후, 마이크로프로세서(201)는 룩업 테이블(203)에 대한 색인으로서 Ym을 이용하고, 룩업 테이블(203)로부터 G 0 Y m , G 1 Y m ,…, G k-1 Y m 을 반환 받는다.  신드롬을 계산하는 동안, 패리티 심볼들의 제 2 세트가 인코더와 유사한 방법을 사용하여 정보 심볼들로부터 생성된다.  특히, 인코더가 G 0 Y m , G 1 Y m ,…, G k-1 Y m 에 대한 값들을 결정하는 것과 유사한 방법으로 제 1 룩업 테이블(503)로부터 G 0 Y m , G 1 Y m ,…, G k-1 Y m 에 대한 값들이 획득된다.  제 2 룩업 테이블(505)은 오류 위치결정 다항식(error locator polynomial)의 루트들을 결정하도록 설정된다.  제 2 룩업 테이블은 여러 개의 테이블들로 구성되며 각 테이블은 (Q-1) 개의 원소들을 포함한다(여기서, Q는 GF(Q) 필드의 크기이다).  (Q-1)과 m 사이의 최대공약수가 (GCD(Q-1,m))=1 인 경우, m 번째 룩업 테이블은 위치 i에 갈로아 필드 원소(Galois Field element) α -mi 를 저장한다.  만약 (GCD(Q-1,m))≠1 인 경우, m 번째 룩업 테이블은 GF 원소 α -(mi+j) (여기서, j=0,1,…,GCD(Q-1,m)-1)를 저장하는 (GCD(Q-1,m)) 개의 서브-테이블들로 사실상 구성된다.
Patent KR-20020026003-A (KR)
IPC: H01L27/115
Filed: 2000-05-30
Abstract: p형 실리콘 반도체 기판(1)의 표면 영역에 형성된 한쌍의 불순물 확산층(6)과, 한쌍의 불순물 확산층(6) 사이에서의 p형 실리콘 반도체 기판(1) 위에 게이트 산화막(7)을 개재하여 형성된 게이트 전극(다결정 실리콘막(8), 텅스텐 실리사이드막(9))을 구비한 비휘발성 반도체 메모리로서, 게이트 산화막(7)의 양단부에 실리콘 질화막(4)이 형성되고, 한쌍의 불순물 확산층(6) 각각에 근접하는 위치의 캐리어 트랩 특성이 국부적으로 높게 형성되어 있다.  이 구성에 의해, 게이트 산화막(7)의 양단 이외에 캐리어가 주입되는 것을 억제할 수 있고, 정보를 확실하게 기록 및 유지하는 것이 가능해지며, 기록 불량 또는 소거 불량의 발생을 방지하여 신뢰성을 향상시키는 것이 가능해진다.
Patent KR-20020032559-A (KR)
Title: Coupled cavity antiguided vertical cavity surface emitting laser
IPC: H01S5/10
Filed: 2000-08-28
Abstract: A laser structure (10, 60) and method of manufacturing a vertical-cavity surface-emitting laser (VCSEL). The laser structure (10, 60) is adapted to lase at a wavelength lambda and includes a first mirror stack (14), an active region (18) disposed on the first mirror stack (14) and a second mirror stack (22) disposed on the active region (18). The second mirror stack (22) includes a plurality of alternating mirror layer pairs (a, b) with a phase shifting region (24) disposed therein. The phase shifting region (24) is positioned outside the optical aperture (25) and away from the active region (18) by at least one mirror layer pair, with the optical thickness of the phase shifting region (24) being a multiple of one-fourth lambda, the phase shifting region (24) being oxidized reducing the reflectance of the second mirror stack (22) outside the aperture relative to inside the aperture. The optical thickness of the phase shifting region (24) is a function of the difference between the index of refraction of an adjacent semiconductor layer and the index of refraction of the phase shifting region. The phase shifting region (24) creates a coupled cavity (25, 68) positioned above the active region (18). The phase shifting region (24) reduces the reflectance of the second mirror stack (22) and may be positioned at a node of the laser electric field inside the aperture.
Patent KR-20020091049-A (KR)
Title: 실질적으로 폐쇄된 코어의 제조 방법 및 코어 및 자기 코일
IPC: H01F41/02
Filed: 2001-08-14
Abstract: 충진된 제 1 갭(2)이 있는, 자기 코일에 사용되기 위한 코어(1)는 상기 제 1 갭(2)을 제공하고, 경화 가능한 합성 수지로 상기 제 1 갭(2)을 충진하고 상기 수지(3)를 경화하는 것을 통하여 실현된다. 경화된 후에, 합성 수지는 제 1 갭(2)에 걸쳐 실질적으로 균일하게 분포되고 오목면(17)을 갖는다. 상기 합성 수지(3)는 충진제를 포함할 수 있는데, 이는 실질적으로 자기 물질로 구성되는 것이 바람직하다.