baber/WOPTO huggingface dataset:
Patent KR-20180017363-A (KR)
Inventor: SON JU NAM
IPC: H01M2/04
Filed: 2016-08-09
Abstract: A battery and a manufacturing method thereof are disclosed. According to the present invention, even if a tube or a washer for short-circuit prevention is detached from a battery, the battery is provided with a nonconductor layer, which is an additional construction for preventing short-circuit, thereby improving the stability of the battery against the short circuit.
Patent KR-20170048146-A (KR)
Title: Parking Information System and Method
IPC: G06Q50/30
Filed: 2016-08-30
Abstract: The present invention relates to a parking lot information providing system and method. The system includes: a user terminal for receiving information from a user or providing information to the user; a parking lot terminal for obtaining parking lot parking information including information on the parking status of the parking lot; and a server for receiving the parking lot parking information from the parking lot terminal, computing prediction results of parking lot space occupation rate, based on the already-set prediction mechanism and the parking lot parking information corresponding to the time of the parking lot parking information for each parking lot, and providing the user terminal with any one among the parking lot information and the prediction results upon receiving the parking information request including the parking position information and the time information from the user terminal. Thus, it is possible for the user to efficiently find a parking space which can be parked at a desired time in the parking lot around the destination, thereby enabling the user to enjoy parking convenience.
Patent KR-20180024663-A (KR)
Inventor: LEE SEUNG YUL
IPC: C09D125/06
Filed: 2016-08-31
Abstract: The present invention relates to a method for producing a stripping coating agent which has concrete release effects by applying an improved technology and undergoing specific synthesis reactions, and also shows strong attachability to metal surfaces after application. In addition, the stripping coating agent can be used as a coating agent by deriving physical properties, molecular weight, and molecular formula of target objects capable of repetitively conducting concrete placement, curing, and demolding steps via single coating, thereby securing optimized compositions.
Patent KR-20180026013-A (KR)
Inventor: LEE EUI CHUL
IPC: G06K9/00
Filed: 2016-09-01
Abstract: The present invention provides an apparatus for detecting forged biometric information, which includes an image input unit for receiving a biometric image, a skin color amplifying unit for amplifying a brightness component of a skin color region from the biometric image which is received, a physiological signal extracting unit for extracting a physiological signal from the amplified skin color region, a physiological signal analyzing unit for amplifying the extracted physiological signal and analyzing deviation information of an inflection point, and a forged information determining unit for detecting the forged biometric information from the analyzed physiological signal. Therefore, the present invention can determine whether biometric information which a user currently attempts to recognize is real physiological information or forged biometric information by analyzing the physiological signal acquired through the amplification of a skin color.
Patent KR-20180029512-A (KR)
Inventor: LIM CHANG GYU
IPC: H04L45/02
Filed: 2016-09-12
Abstract: An apparatus and a method for managing a transport network topology based on a multi-layer environment are disclosed. According to an embodiment of the present invention, the apparatus for managing a topology comprises: a topology setting unit for setting an initial topology in a multi-layer transport network in which a system for performing a single layer function and a system for performing a multi-layer function are mixed; and a topology managing unit for configuring a single integrated transport network topology on the multi-layer transport network based on information obtained or generated by setting the initial topology.
Patent KR-20180032437-A (KR)
Inventor: YUN HYUN CHUL
IPC: B60H1/00
Filed: 2016-09-22
Abstract: The present invention relates to an apparatus and a method for adjusting a temperature of a vehicle seat. A target temperature corresponding to a temperature adjusting level of a seat is changed in accordance with an indoor temperature of a vehicle and direct light, and thus unnecessary energy consumption of a battery is reduced without damaging marketability of the vehicle. Accordingly, fuel efficiency can be improved. To this end, the apparatus of the present invention comprises: an indoor temperature measuring unit for measuring an indoor temperature of a vehicle; a direct light detecting unit for detecting direct light incident to an indoor place of the vehicle; and a control unit for controlling a temperature of a seat to a target heating temperature corresponding to a heating temperature adjusting level or a target cooling temperature corresponding to a cooling temperature adjusting level, wherein the target heating temperature and the target cooling temperature are changed in accordance with the measured indoor temperature and the indoor incident state of the direct light.
Patent KR-20180034067-A (KR)
Inventor: OH CHANG HOON
IPC: C07C11/16
Filed: 2016-09-27
Abstract: The present invention relates to a continuous process for production of isobutylene by dehydration of tert-butanol. The continuous process for producing isobutylene according to the present invention can exhibit high conversion of tert-butanol and high selectivity for isobutylene in a dehydration reaction of tert-butanol, and can suppress oligomerization and side reactions of isobutylene, thereby enabling continuous production of isobutylene with high yield.
Patent KR-20160117400-A (KR)
Inventor: TAKAHASHI MASANOBU
IPC: B29C43/34
Filed: 2016-09-29
Abstract: Disclosed are a compression molding device in which an entire device is promoted to be downsized and a compression molding method. The compression molding method for compression-molding an insert member into a resin material comprises the steps of: providing an insert member and a resin material to each of a first molding mold and a second molding mold; and exerting required clamping force to the first molding mold and the second molding mold by using a toggle link device provided in the lower direction of a slide table, and thereby moving a middle plate with the distance of L and moving a slide plate with the distance of 2L. In a process of exerting clamping force, a triangle including a first link member for moving the slide plate and a triangle including a second link member for moving the middle plate are modified in a state of maintaining a similar figure at a ratio of two to one having a common side of a third link member.
Patent KR-20180028869-A (KR)
Inventor: JEON JIN WAN
IPC: C23C14/04
Filed: 2016-10-04
Abstract: The present invention relates to a mother plate, a producing method thereof, and a producing method of a mask. According to the present invention, the mother plate can be used when producing the mask using electroforming, comprising: a fine metal unit (21) having a fine metal mask (15); and a plurality of insulation units (25) formed on one surface of the mother plate (20), and having an intaglio pattern (28) formed in the perpendicular direction to one surface of the mother plate (20).
Patent KR-20180038877-A (KR)
Inventor: KANG YOUNG GU
IPC: G01R1/067
Filed: 2016-10-07
Abstract: The present invention relates to a probe apparatus. According to an embodiment of the present invention, the probe apparatus comprises: a signal transmission cable including a ground pin and a signal pin; a moving body coupled to one side of the ground pin; and a drive unit coupled to the moving body to control movement of the moving body.
Patent KR-20180040004-A (KR)
Inventor: KIM SANG BEOM
IPC: H02J7/00
Filed: 2016-10-11
Abstract: Disclosed is a precharger capable of precise inrush current control and extending life of components. The precharger comprises: a transformer converting input power into output power; a switch part switching the input power inputted to the transformer; a charging part charged by the output power; a sensing part generating a sensing signal corresponding to a power source charged in the charging part; a relay part switching a series connection of the power supply part and the charging part; and a control part controlling the switch part to switch the input power according to the sensing signal generated in the sensing part.
Patent KR-20180046403-A (KR)
Inventor: LEE JAE JIN
IPC: B30B15/26
Filed: 2016-10-27
Abstract: The present invention relates to an apparatus for automatically controlling a press that controls a timing signal in synchronization with peripheral devices of the press, and an operating method thereof. A timing signal control apparatus includes a slide position detecting member (8) for detecting the position of a slide (4) linearly driving in a vertical direction; a timing signal setting member (31) for setting output timing of a timing signal based on a timing threshold of a time elapsed from a start time; a motion setting member (32) for setting motion data indicative of a motion curve of the slide; a stroke determining member (46) for determining a stroke type based on slide position data and the motion data when the slide is driven according to the motion curve; a timing signal output determining member (47) for determining the output timing of the timing signal based on the timing threshold to output an ON or OFF command; and a timing signal output member (48) receiving the ON or OFF command to output a corresponding timing signal. Therefore, it is possible to set and control the output timing of the timing signal according to the position and timing of each stroke.
Patent KR-20180046933-A (KR)
Inventor: KIM YOUNG DOK
IPC: C08J5/22
Filed: 2016-10-28
Abstract: The present invention relates to a membrane for protecting a gas sensor, which is manufactured from a fluoropolymer film which is coated with silica coating and hydrophobic material coating through a dip coating process. The dip coating process comprises the following steps: adding an adhesive to a solution in which SiO_2 nanoparticles are dispersed in an organic solvent, and repeatedly immersing and drying the fluoropolymer film to coat the fluoropolymer film with SiO_2; and repeatedly immersing and drying the fluoropolymer film in which SiO_2 is coated in a solution mixed with a hydrophobic substance to coat the film with the hydrophobic substance to impart water repellency and oil repellency.
Patent KR-20180047148-A (KR)
Inventor: JOO YOUNG BUK
IPC: B60H1/00
Filed: 2016-10-31
Abstract: The present invention relates to a blower for a vehicle. More specifically, a cover member covering an indoor air inlet is integrally provided in an intake duct, and sucks the indoor air from a side direction of the indoor air inlet, thereby arranging the cover member at the front of the indoor air inlet to reduce noise during indoor air suction. Since the intake duct is integrally formed with the cover member, the number of molds can be reduced and assemblability of a cover can be improved.
Patent KR-20180047164-A (KR)
Inventor: CHO YONG HO
IPC: B65D55/00
Filed: 2016-10-31
Abstract: Disclosed is an airtight container, comprising: a container body in which a sealing protrusion is formed along the inner wall surface; a cap which seals the container body while being seated in an inlet of the container body; a sealing unit; a pulling force generating/releasing unit connected to an upper end of a shaft unit of the sealing unit penetrating a center of a stopper to lift up the sealing unit; and the guide unit provided on the bottom surface of the stopper on an upper side of the sealing protrusion to guide the deformation direction of edge of the sealing unit adhered in the outward direction when the sealing unit is raised. The sealing unit is provided in a concave shape having restoring force at a lower center of the cap so that guide rim of the guide unit deforms toward the inner wall surface when a center unit rises.
Patent KR-20180045756-A (KR)
Inventor: PARK CHANG WOO
IPC: B01D35/04
Filed: 2016-11-01
Abstract: The present invention relates to an under sink type drinking water supplying apparatus, and more specifically, to an under sink type drinking water supplying apparatus, to an under sink type drinking water supplying apparatus, in which a main body having a linear filter portion and a linear type direct cooling/direct temperature module is installed in a lower space of an installation place such as a lower storage space of a sink, and a discharging means for discharging purified water, cold water and/or hot water is installed in an upper space of an installation place such as a sink, so that the utilization of the installation space is improved through downsizing. In addition, the use of the purified water, cold water and/or hot water is easy, and it is possible to sterilize a water-discharge pipe and a discharge means with high-temperature sterilizing water using the direct temperature module.
Patent KR-20180056971-A (KR)
Inventor: LIM SANG OH
IPC: G11C7/04
Filed: 2016-11-21
Abstract: The present invention relates to an electronic device, and more particularly, to a semiconductor memory device and a method of operating the same. The semiconductor memory device according to the present invention includes a delay code determining part for outputting a final delay code reflecting the PVT state of the semiconductor memory device using an internal clock generated for a reference time, and a delay circuit for reflecting the delay of a data line inputted according to the final delay code to a clock signal. The operation of the semiconductor memory device can be more stable.
Patent KR-20180057096-A (KR)
Inventor: YOO BYUNG IN
IPC: G06T11/40
Filed: 2016-11-21
Abstract: Provided is a technique for calculating expression intensity. According to an embodiment of the present invention, an expression recognition training device generates training data for each expression intensity and trains an expression recognition model. The expression recognition device can calculate the expression intensity from an input image by using the expression recognition model in which the training is completed.
Patent KR-20180058910-A (KR)
Inventor: PARK TAE JOON
IPC: G02F1/1335
Filed: 2016-11-24
Abstract: According to an embodiment of the present invention, provided is a liquid crystal display panel comprising: a plurality of first and second common electrode patterns which display an image, are arranged on one surface of a first substrate, are arranged in a matrix on a display region, correspond to two or more pixel regions of a plurality of pixel regions, respectively, and alternate in a first direction; a shielding film and an auxiliary resistor pattern which are arranged on the other surface of the first substrate; a first light-shielding dummy pattern which is arranged on one surface of the first substrate, corresponds to a part of a boundary region, adjacent to each of the first common electrode patterns, and overlaps with the auxiliary resistor pattern; and a second light-shielding dummy pattern which is arranged on one surface of the first substrate, corresponds to a part of the boundary region, adjacent to each of the second common electrode patterns, overlaps with the auxiliary resistor pattern, and is alternately arranged in parallel with the first light-shielding dummy pattern in the first direction. In a process of irradiating laser for forming the auxiliary resistor pattern by the first and second light-shielding dummy patterns, the degree of exposure of insulating materials disposed in the liquid crystal display panel to the laser may be reduced, thereby preventing damage to the insulating materials by the laser.
Patent KR-20180059023-A (KR)
Inventor: LEE NA YOUNG
IPC: A23L5/30
Filed: 2016-11-25
Abstract: The present invention relates to wheat processed foods, which contain a cereal mixture comprising a mixture of low protein flour having a protein content of 5 to 7.6 wt% and oat flour, and to a manufacturing method thereof. By blending domestic flour with oat flour, processing quality is enhanced, and the quality and nutrition becomes excellent.
Patent KR-20160145526-A (KR)
Inventor: JHON DEOK YOUNG
IPC: C12N1/20
Filed: 2016-12-06
Abstract: The present invention relates to a starter strain for fermenting cheonggukjang, including Bacillus subtilis strain B53, Bacillus amyloliquefaciens strain B57, and Bacillus subtilis strain B74, a fermented food containing the same, and a method for manufacturing raw cheonggukjang using the same. The flavor of cheonggukjang produced according to the present invention can be uniformly maintained and contamination by various bacteria can be prevented. A large amount of cheonggukjang is produced and has many mucilaginous substances with the excellent flavor and taste of cheonggukjang. Also, the present invention enables mass production of raw cheonggukjang with reduced biogenic amine generation.
Patent KR-20170069934-A (KR)
Title: 하나 이상의 특정 알데히드 스캐빈저를 포함하는 핫 멜트 접착제 조성물
Inventor: HUSSEIN NAJI
IPC: C09J7/00
Filed: 2016-12-07
Abstract: 본 발명은 하나 이상의 특정한 알데히드 스캐빈저를 포함하는 핫 멜트 접착제 조성물, 및 핫 멜트 접착제 조성물 중 휘발성 유기 화합물(들) (VOC), 특히 휘발성 알데히드(들)을 제거 또는 감소시키기 위한 상기 알데히드 스캐빈저(들)의 용도에 관한 것이다. 
본 발명에 따른 핫 멜트 접착제 조성물은 이의 제조 및 적용 중 및 후 보다 적은 냄새를 방출하기 때문에, 냄새가 적은 일회용 부직포 흡수성 물품의 제조에 특히 유용하다.
Patent KR-20180070357-A (KR)
Inventor: PARK YOUNG RYUL
IPC: D06F37/14
Filed: 2016-12-16
Abstract: The present invention relates to a laundry treating apparatus which comprises: a cabinet; a tub provided in the cabinet to provide a space in which water is stored; a discharge pipe connected to the tub for the water of the tub to be discharged; a filter unit connected to the discharge pipe to filter the water discharged from the tub; a circulation unit connected to the filter unit to circulate the water filtered in the filter unit to the tub; and a drain unit connected to the filter unit to drain the water passing through the discharge unit and the filter unit to the outside of the cabinet along with a foreign substance filtered by the filter unit.
Patent KR-20180058597-A (KR)
Inventor: YEO JEONG HO
IPC: H04L1/18
Filed: 2016-12-23
Abstract: The present invention relates to a communication technique for fusing a 5G communication system for supporting a higher data transfer rate than a 4G system with an IoT technology, and a system thereof. The present invention can be applied to intelligence type services (for example, a smart home, a smart building, a smart city, a smart car, or a connected car, healthcare, digital education, retail business, security and safety related services, etc.) based on a 5G communication technology and an IoT related technology. The present invention discloses a method and a device for performing retransmission only for a code block requiring retransmission among transport blocks, when requiring retransmission of the transport block to be initially transmitted. A method for processing a control signal in a wireless communication system comprises the following steps of: receiving a first control signal transmitted from a base station; processing the received first control signal; and transmitting a second control signal generated based on the processing to the base station.
Patent KR-20180078634-A (KR)
Inventor: KIM DAE CHUL
IPC: B21C47/26
Filed: 2016-12-30
Abstract: A coil sensing device for a loop system is disclosed. According to an embodiment of the present invention, the coil sensing device for a loop system comprises: a frame installed on a central portion on a process floor surface between front and rear coil guiders in a vertical direction in a loop system including the front and rear coil guiders formed on the front and rear sides of the process floor surface of a process line, and a feeding unit formed on one side on a process floor surface of the process line to supply a coil to the process line; both guide rods erected on both sides of the frame in the width direction to have an upper end and a lower end fixed to the upper and lower sides of the frame, respectively; a sensing rod having both ends installed to be able to slide up and down along the guide rods of both sides through a slider to maintain a state in contact with the upper surface of a coil to be supplied; a sensor rod arranged to be adjacent to one side guide rod and having an upper end and a lower end fixed to the upper and lower sides of the frame, respectively; and a plurality of sensors formed on the sensor rod to sense a sensing dog formed on one side slider on the sensing rod to sense the height of the coil between the front and rear coil guiders to output a sensing signal. A feeding unit can be controlled in real time.
Patent KR-20160025586-A (KR)
Inventor: FALLON GARY
IPC: A24D3/02
Filed: 2014-06-27
Abstract: 본 발명의 실시예들은 끽연류용 필터의 제작 방법 및 장치, 그리고 이 방법에 의해 제조되는 끽연류에 관한 것이다.  이 방법은 필터 형성 장치에 의해 표면 양각 패턴을 갖는 필터 섹션을 형성하는 단계, 필터 전달 장치에 의해 필터 섹션을 필터 랩핑 장치로 전달하는 단계 및 필터 랩핑 장치에 의해 필터 섹션 주위에 시이트 재료를 랩핑하는 단계를 포함할 수 있다.
Patent KR-20160030302-A (KR)
Title: 고 유속, 수소화된 스티렌-부타디엔-스티렌 블록 공중합체 및 이의 이용성
Inventor: WRIGHT KATHRYN
IPC: C08L9/06
Filed: 2014-07-07
Abstract: 본 발명은 신규의 고 용융 유속, 저점도, 선택적으로 수소화된 스티렌-부타디엔-스티렌(hSBS) 또는 선택적으로 수소화된 조절 분포형 스티렌-부타디엔/스티렌-스티렌(hSBSS) 블록 공중합체의 특별한 이용성에 관한 것으로, 상기 블록 공중합체는 용융 유속이 ASTM D1238에 따라 230℃에서 2.16kg 질량 하에 측정 시 100g/10min 이상인 것이다. 이러한 블록 공중합체는 신규한 것이고, 또한 고 강도 및 탄성을 보유하는 임의의 스티렌계 블록 공중합체 중 가장 높은 용융 유속을 보유한다. 본 발명 전에는 스티렌계 블록 공중합체의 일반적인 낮은 용융 유속으로 인해 보통 불가능했던 이용성들을 제공한다.
Patent KR-20160089333-A (KR)
Title: 금속 케이스를 구비하는 전자 통신 기기 및 그 제조 방법
Inventor: WANG JIANYU
IPC: H01Q1/24
Filed: 2015-12-18
Abstract: 본 발명은 완제품 외관이 완전히 일체화된 전자 통신 기기를 실현하기 위한 금속 케이스를 구비하는 전자 통신 기기 및 그 제조 방법에 관한 것이다. 상기 전자 통신 기기에서, 금속 케이스에는 상기 금속 케이스에 관통 설치되는 복수의 미세 천공이 형성하는 적어도 2개의 분할 흔적으로 형성되는 분할 스트립이 형성된다.  
상기 과제의 해결수단에서 제공하는 전자 통신 기기에서, 복수의 미세 천공이 형성하는 적어도 2개의 분할 흔적을 통하여 금속 케이스를 복수의 부분으로 분리하고, 분리해 낸 케이스 부분에는 전기적 도통이 없어, 전자 통신 기기의 관련 성능의 실현에 유리하고, 예를 들면 안테나의 신호 방사에 유리하며,  
또한, 미세 천공은 매우 미세하고, 미세 천공으로 형성되는 분할 흔적도 매우 미세하여, 일반적으로 사람의 육안으로 이러한 미세 천공과 분할 흔적을 아예 볼 수 없으므로, 전자 통신 기기의 완제품은 외관에서 슬롯 또는 흔적 라인을 볼 수 없어, 완제품 외관은 완전히 일체로 형성될 수 있고, 미관적이다.
Patent KR-20160038024-A (KR)
Inventor: VIOREL DORIN G
IPC: H04W72/04
Filed: 2014-02-10
Abstract: 방법이, 복수의 시스템 정보 블록(SIB) 블록들과, 관련된 콘텐츠를 검출하는 것을 포함할 수 있다.  관련된 콘텐츠는 저장될 수 있다.  방법은 복수의 SIB 블록들과 관련된 복수의 변화 플래그들을 검출하는 것을 더 포함할 수 있고, 복수의 변화 플래그들 각각은 복수의 SIB 블록들 중 하나와 관련된다.  제1 변화 플래그 값을 가진 변화 플래그를 검출하는 것에 응답하여, 그 제1 변화 플래그와 관련된 SIB 블록의 콘텐츠가 재사용될 수 있다.  제1 변화 플래그 값은 제1 변화 플래그와 관련된 SIB 블록의 콘텐츠에 대한 변화의 부재를 나타낼 수 있다.  제2 변화 플래그 값을 가진 변화 플래그를 검출하는 것에 응답하여, 그 제2 변화 플래그와 관련된 SIB 블록이 검출될 수 있고 관련된 콘텐츠가 저장될 수 있다.  제2 변화 플래그 값은 관련된 SIB 블록의 콘텐츠에 대한 변화를 나타낼 수 있다.
Patent KR-20160047489-A (KR)
Title: 스프링용 강 및 스프링의 제조 방법
Inventor: HONJO MINORU
IPC: C21D8/06
Filed: 2014-09-11
Abstract: 종래의 고강도 스프링용 강에 대하여, C, Si, Mn 및 Cr 에 더하여, Sb 및 Sn 의 첨가량의 적정화를 실시함으로써, 내탈탄성이 우수하고, 또한 스케일 박리성이 우수한 고강도 스프링용 강을 제공한다.     C : 0.45 질량％ 초과 0.65 질량％ 미만, Si : 0.15 질량％ 이상 0.70 질량％ 이하, Mn : 0.10 질량％ 이상 1.00 질량％ 이하, Cr : 0.20 질량％ 이상 1.50 질량％ 이하, P : 0.025 질량％ 이하, S : 0.025 질량％ 이하, O : 0.0015 질량％ 이하, Sb : 0.010 질량％ 이상 0.030 질량％ 미만 및 Sn : 0.010 질량％ 이상 0.030 질량％ 이하를, 소정의 조건하에 함유한다.
Patent KR-20160060048-A (KR)
Inventor: KUESS VOLKER
IPC: B60L50/16
Filed: 2014-09-23
Abstract: 본 발명은 자동차의 파워 트레인의 하이브리드 모듈 내에서 분리형 클러치의 안전 임계 활성화를 방지하기 위한 방법에 관한 것이며, 하이브리드 모듈은 내연기관과 변속기 사이에서 작용하고 전기 구동 장치와, 분리형 클러치와, 프리휠을 포함하며, 분리형 클러치는, 전기 구동 장치 또는 파워 트레인과 마찰 결합식 연결을 통해 전기 구동 장치 또는 파워 트레인으로부터 공급되는 토크의 전달을 통한 내연기관의 시동을 위해 이용되거나, 순수 전기 주행을 위해 파워 트레인으로부터 내연기관을 분리하기 위해 이용된다.  안전 임계 주행 상황이 신뢰성 있게 방지되는, 하이브리드 모듈 내에서 분리형 클러치의 안전 임계 활성화의 방지를 위한 방법의 경우, 분리형 클러치의 임계 교란 토크는, 개방된 분리형 클러치의 유지될 안전 간격의 설정을 위해, 자동차의 주변 조건들 및/또는 차량 한계 조건들에 따라서 설정된다.
Patent KR-20160119750-A (KR)
Inventor: NAKANISHI MASATAKA
IPC: C08G59/06
Filed: 2015-02-05
Abstract: 본 발명은 내열성, 난연성이 뛰어난 에폭시 수지 조성물과, 그 경화물, 및 그것들을 사용한 반도체 장치를 제공하는 것을 목적으로 한다. 본 발명의 에폭시 수지 조성물은 연화점(ASTM D 3104 준거)이 100~120℃인 하기 식(1)으로 나타내어지는 에폭시 수지와 하기 식(2)으로 나타내어지는 에폭시 화합물의 에폭시 수지 혼합물, 비페닐아랄킬형의 페놀 수지 및 무기 필러를 함유한다. 
   
[식(1) 중, n은 평균값으로 5~20의 수를 나타낸다.]