baber/WOPTO huggingface dataset:
Patent KR-20080060788-A (KR)
Title: Substrate support unit, and apparatus and method for treating substrate with the same
Inventor: LEE TAEK YOUB
IPC: H01L21/687
Filed: 2006-12-27
Abstract: A substrate support unit, and a method and an apparatus for processing a substrate are provided to prevent a substrate from being damaged by supporting and rotating the substrate using a non-contact scheme. A substrate support unit includes a chuck plate(100) and a swirl-flow supplying member. The swirl-flow supplying member supplies a swirl-flow to a substrate surface, which is opposed to the chuck plate, such that the substrate is levitated from the chuck plate. The swirl-flow supplying member includes a cylindrical swirl-flow generator(150) and a gas supply tube. An upper portion of the swirl-flow is opened. The gas supply tube sprays the gas into the swirl-flow generator, such that the gas circulates in the swirl-flow generator along an inner surface thereof in the inner portion of the swirl-flow generator.
Patent KR-20080061096-A (KR)
Title: Liquid crystal display device and driving method thereof
Inventor: CHOI JOUNG MI
IPC: G02F1/133
Filed: 2006-12-28
Abstract: An LCD(Liquid Crystal Display) device and a driving method thereof are provided to minimize deviation between positive and negative polarities of pixel charge voltages by compensating for a common voltage based on the deviation. An LCD(Liquid Crystal Display) device includes an LCD panel(10), drivers(12,14), a common voltage generator(18), and a common voltage compensator(20). The LCD panel includes liquid crystal cells connected to a common voltage line. The drivers convert pixel data into pixel driving signals having alternately positive and negative polarities with respect to a common voltage and supplies the converted signals to the liquid crystal cells. The common voltage generator generates the common voltage to be supplied to the common voltage line on the LCD panel. The common voltage compensator compensates for the common voltage to be supplied from the common voltage generator to the common voltage lines based on pixel charge voltages charged in the liquid crystal cells.
Patent KR-20060040734-A (KR)
Title: Economizer chamber for minimizing pressure pulsations
Inventor: SISHTLA VISHNU M
IPC: F25B1/00
Filed: 2004-08-10
Abstract: A baffle for use in a refrigerator apparatus comprises a baffle plate comprising a first and a second opposing sides attached to an inner surface of the refrigerator apparatus, a baffle seal plate attached along a third side of the baffle plate, the baffle plate seal plate attached to the inner surface of the refrigerator apparatus.
Patent KR-20060032660-A (KR)
Title: Optical film and image display
Inventor: YANO SHUUJI
IPC: G02B5/30
Filed: 2004-09-13
Abstract: An optical film comprises a polarizing sheet (1) and phase difference films (2) provided on one side of the polarizing sheet (1). The polarizing sheet (1) is composed of the polarizer (1a) and transparent protective films (1b) on both sides of the polarizer (1a). The phase difference films (2) are so arranged that their slow axes are parallel to one another and the absorption axis of the polarizing sheet (1) is perpendicular or parallel to the slow axes. When the refractive index along the X-axis parallel to the direction in which the in-plane refractive index within the surface of each phase difference film (2) is maximum is denoted by nx1, the refractive index along the Y-axis perpendicular to the X-axis is denoted by ny1, the refractive index along the Z-axis parallel to the direction of the thickness of each film is denoted by nz1, and the thickness of each film is denoted by d1 (nm), the Nz value defined by Nz=(nx1-nz1)/(nx1-ny1) ranges from 0. 15 to 0.85, and the in-plane phase difference Re1 defined by Re1=(nx1-ny1)xd1 ranges from 200 to 350 nm. At least the transparent protective film (1b) on one side contains a thermoplastic saturated norbornene resin. Such an optical film enables easy-to-view display of a high contrast ratio in a wide range and exhibits a stable phase difference value even at high temperature and at high humidity.
Patent KR-20060028824-A (KR)
Title: System and method for efficiently allocating wireless resources
Inventor: ZHANG GUODONG
IPC: H04B1/707
Filed: 2004-08-10
Abstract: Dynamic resource allocation is performed by first generating a plurality of slot sequences. A figure of merit based on weighted interference signal code power (ISCP) and weighted resource units is then generated for each timeslot of each slot sequence. The timeslots within each slot sequence are then arranged in a decreasing figure of merit. The slot sequences are the processed to determine whether they can support the code to be transmitted.
Patent KR-20060095994-A (KR)
Title: Polymeric ketone
Inventor: FLATH DIANNE
IPC: C08L71/10
Filed: 2004-09-27
Abstract: There is provided a pack comprising a polymeric material having a melt viscosity (MV) in the range 0.05 to 0.12 kNsm-2 wherein said polymeric material is of a type which includes: (a) phenyl moieties; (b) carbonyl moieties; and (c) ether moieties. Preferably the polymeric material is selected from is polyetheretherketone and polyetherketone. Such low Mv materials may be injection moulded or extruded to produce thin walled components; or used as components of highly filled compositions.
Patent KR-20060118519-A (KR)
Title: Actinic energy ray curable composition for optical material
Inventor: SANAI YASUYUKI
IPC: C08F222/10
Filed: 2004-11-05
Abstract: [PROBLEMS] To provide an actinic-energy- ray-curable composition for optical materials which can give a cured article having a high refractive index, high light transmittance, and low water absorption. [MEANS FOR SOLVING PROBLEMS] The actinic-energy-ray- curable composition for optical materials comprises (A) a di(meth) acrylate represented by the formula(1) and (B) a mono(meth)acrylate represented by the formula (2) and/or mono(meth)acrylate represented by the formula (3). Also provided is a process for producing an optical material which comprises applying or pouring the composition to a casting mold and then irradiating it with actinic energy rays. [R1 and R3 each independently represents hydrogen or methyl; R2 and R4 each independently represents hydrogen, methyl, or ethyl; R5 to R8 each independently represents hydrogen, methyl, or bromine; and l and m each independently is an integer of 1 to 6.] [R9 represents hydrogen or methyl.] [R10 represents hydrogen or methyl.]
Patent KR-20060130067-A (KR)
Title: Echo canceller having a series arrangement of adaptive filters with individual update control strategy
Inventor: DERKX RENE M M
IPC: H04B7/015
Filed: 2004-11-25
Abstract: Disclosed is an echo canceller comprising two or more adaptive filters for calculating echo estimates, whereby the adaptive filters each have adaptation control mechanisms for applying individual update control criteria. The adaptive filters are arranged in series. Each of the adaptation control mechanisms of the adaptive filters may apply individual update control criteria for both direct echo and diffuse echo. Several step-size reduction strategies are presented.
Patent KR-20070013261-A (KR)
Title: Method for the controlled storage and release of gases using an electrochemically produced crystalline, porous, organometallic skeleton material
Inventor: MULLER ULRICH
IPC: C01B32/40
Filed: 2004-11-24
Abstract: The invention relates to a method for the absorption and/or storage of gases. According to said method, the gas to be stored is brought into contact with an electrochemically produced, organometallic skeleton material in conditions that are favourable for gas absorption. The gas is absorbed by the organometallic skeleton material and the conditions are subsequently modified in such a way that the gas is released. ® KIPO & WIPO 2007
Patent KR-20070018832-A (KR)
IPC: C10L1/04
Filed: 2004-12-16
Abstract: 원유 공급물을 일 이상의 촉매들과 접촉시키면 원유 생성물을 포함하는 최종 제품을 얻을 수 있다.     상기 원유 생성물은 25℃, 0.101 MPa에서 액상 혼합물로 존재한다.     상기 원유 생성물의 일 이상의 다른 특성들은 상기 원유 공급물의 각각의 특성에 대해 최소 10% 만큼 변경가능하다.
Patent KR-20070007784-A (KR)
Title: Gallium nitride-based compound semiconductor light-emitting device
Inventor: KAMEI KOJI
IPC: H01L33/32
Filed: 2005-02-22
Abstract: An object of the present invention is to provide a gallium nitride compound semiconductor light-emitting device having a positive electrode that exhibits low contact resistance with a p- type gallium nitride compound semiconductor layer and that can be fabricated with high productivity. The inventive gallium nitride compound semiconductor light-emitting device includes a substrate, an n-type semiconductor layer, a light-emitting layer, a p-type semiconductor layer, a negative electrode provided in contact with the n-type semiconductor layer, and a positive electrode provided in contact with the p-type semiconductor layer, the layers being successively provided atop the substrate in this order and being composed of a gallium nitride compound semiconductor, wherein the positive electrode includes at least a contact metal layer which is in contact with the p-type semiconductor layer, the contact metal layer comprises at least one metal selected from the group consisting of Pt, Ir, Rh, Pd, Ru, Re, and Os, or an alloy containing said at least one metal, and the surface portion of the p-type semiconductor layer on the positive electrode side includes a positive-electrode-metal- containing layer that contains at least one metal selected from the group consisting of Pt, Ir, Rh, Pd, Ru, Re, and Os. ® KIPO & WIPO 2007
Patent KR-20060123585-A (KR)
Title: Vehicle headlight bulb
Inventor: KNORR KLAUS PETER
IPC: H01K1/00
Filed: 2005-01-17
Abstract: The invention relates to a vehicle headlight bulb with a bulb receptacle, a spiral wound filament (2) which is arranged inside the receptacle for the bulb (1) and a lamp base which has a metal base bushing (3) wherein the end (11) of the bulb receptacle (1), which is sealed by means of a molybdenum film seal (112,113) is fixed. According to the invention, the metal base bushing (3) comprises at least one molded tab (32) which lies adjacent to the sealed end (11) of the bulb receptacle (1), in the overlapping area of the molybdenum films (112,113), with current supply wires (23,24) which protrude from the bulb receptacle and which are connected thereto, in order to reduce thermal load in the above-mentioned overlapping area during operation of the bulb.
Patent KR-20070022217-A (KR)
IPC: A61F2/28
Filed: 2005-01-27
Abstract: 본 발명은 프로테아제와 같은 내인성 효소의 활성을 감소시키기 위해, 조성물의 pH를 낮춤으로써, 물 함량을 낮춤으로써, 물 치환체를 첨가함으로써 및/또는 조성물 내 존재하는 중수소화된 물의 양을 증가시킴으로써 안정화된 탈미네랄된 골 매트릭스 또는 기타 매트릭스 조성물을 제공한다.  안정화된 DBM 조성물의 수화된 형태가 산성 pH에서 실온에서 1년 이하로 안정할 수 있다.  산성화된 DBM 조성물이 중수소화된 물, 물 치환체, 중합체, 프로테아제 억제제, 글리세롤, 하이드로겔 등과 같은 안정화제의 첨가로 추가 안정화될 수 있다.  본 발명은 또한 본 발명의 안정화된 골유도 매트릭스 조성물을 제조하는, 시험하는, 및 사용하는 방법을 제공한다.  
       
     골유도 매트릭스, 프로테아제, 탈미네랄, 이식, 중수소화된 물, 물 치환체
Patent KR-20070018882-A (KR)
IPC: G02F1/13
Filed: 2005-03-02
Abstract: 본 발명은 광학주사장치의 여러 가지 동작 모드에서 사용될 수 있는 위상 구조체 시스템을 구비한 광학주사장치에 관한 것이다. 이 광학장치는, 제 1 이상 축을 갖는 제 1 복굴절 재료(203)로 이루어진 제 1 위상 구조체(105)와, 상기 제 1 이상 축에 수직한 제 2 이상 축을 갖는 제 2 복굴절 재료(208)로 이루어진 제 2 위상 구조체(106)를 구비한다. 제 1 및 제 2 위상 구조체의 패턴은 실질적으로 동일하다. 상기 광학장치는 상기 제 1 및 제 2 복굴절 재료의 이상 굴절률이 실질적으로 동일하도록 상기 제 1 및 제 2 복굴절 재료의 이상 굴절률을 변경하는 수단(202,205,207,210)을 더 구비한다. 
       
     광학주사장치, 위상 구조체, 복굴절 재료, 굴절률, 이상 축
Patent KR-20060134124-A (KR)
Title: Controlled-leaching preparation and process for producing the same
Inventor: YOSHITAKE TAKASHI
IPC: A61K9/22
Filed: 2005-03-23
Abstract: Controlled-leaching preparations containing a physiologically active substance unstable in acids, in particular, pulsed-leaching preparations being slight in lag time fluctuation and enhanced in reliability of leaching performance. There are disclosed controlled-leaching preparations comprising core (1) containing a physiologically active substance unstable in acids and a disintegrant and controlled-leaching coating (2) covering the core and containing a water-insoluble polymer, an enteric polymer and a fat- soluble wax.
Patent KR-20070011367-A (KR)
Title: Method for supporting mask manufacture, method for providing mask blank and mask blank dealing system
Inventor: ISHIDA HIROYUKI
IPC: G03F1/08
Filed: 2005-03-07
Abstract: A mask blank is provided by forming a plurality of films, including at least a thin film to be a transfer pattern, on a board. At the time of patterning a resist film of the mask blank according to pattern data, film information to check with a pattern is obtained for each of a plurality of the films. ® KIPO & WIPO 2007
Patent KR-20070020230-A (KR)
Title: Cooling system for a vehicle engine with a water circuit and oil circuit
Inventor: ADAM GUILLAUME
IPC: F01P7/14
Filed: 2005-05-31
Abstract: The invention concerns a cooling system for a motor vehicle comprising: a module (4) including an oil cooler (14) and a filter (16); a radiator (8); and a water circuit (6). The cooler (14) extends downstream of the radiator in the water circuit (6). ® KIPO & WIPO 2007
Patent KR-20070004980-A (KR)
Title: Titanium oxide base photocatalyst, process for producing the same and use thereof
Inventor: NISHIHARA KATSUHIRO
IPC: B01J37/03
Filed: 2005-04-19
Abstract: A visible-light-responsive highly active titanium oxide base photocatalyst is produced by first neutralizing an acidic titanium compound with ammonia or an amine under such conditions that the terminal pH is <= 7 to thereby obtain a raw material of titanium oxide (hydroxide), subjecting the raw material to heat treatment in an environment containing a hydrolysable compound, bringing the heat treated material into contact with water and carrying out further heat treatment thereof at >= 350C. The thus obtained titanium oxide base photocatalyst is comprised of a titanium oxide of = 600 mueq/g surface hydroxyl quantity. Preferably, the density of surface hydroxyl is >= 8 mueq/m2, and with respect to the surface hydroxyl, the ratio of terminal hydroxyl quantity (T) to bridged hydroxyl quantity (B), T/B, is >= 0.20. This titanium oxide base photocatalyst exhibits an ESR spectrum having two types of triplet signals having respective main- spectrum g-values of 1.993 to 2.003 and 2.003 to 2.011, and can be identified by a deviation of the intensity ratio of these signals before visible light irradiation, during irradiation and immediately after discontinuation of irradiation from those of the prior art photocatalysts. ® KIPO & WIPO 2007
Patent KR-20070028439-A (KR)
Title: The synthesis of the micro-porous silica gel and its application to the preparation of catalysts for c2 oxygenates synthesis from syngas
Inventor: LUO HONGYUAN
IPC: B01J35/10
Filed: 2004-06-23
Abstract: A synthesis of the micro-porous silica gel and its application to preparation of catalysts for C2 oxygenates synthesis from syngas is invented. The small particles of silica gel which are, produced by sol gel process are heated in a basic solution, followed by drying and/or calcinations, and thus form micro-porous silica as catalyst support. The basic solution can be one or a mixed solution of hydroxides, carbonates, bicarbonates, formates and acetates of alkali metal and ammonium. The obtained micro-porous silica can be impregnated with the solutions of rhodium salt and other transition element salts (as promoter precursors), followed by drying and/or calcinations, thus forming a micro-porous silica supported rhodiurn based catalyst. The rhodium salt can be RhCl3 or Rh(NO3)3. The promoter precursors can be water-dissolvable transition metal salts, rare earth metals salts, alkali metal salts and alkali earth metal salts. The obtained catalysts show high activity and selectivity in the synthesis of C2-oxygenates by the hydrogenation of CO under mild process conditions. ® KIPO & WIPO 2007
Patent KR-20080064284-A (KR)
Title: Screw thread making screw groove required screw
Inventor: KIM IGK HYUN
IPC: F16B25/00
Filed: 2007-01-04
Abstract: A screw having male thread for making a screw groove is provided to improve the fastening performance by forming the flanks of the thread at an optimum angle and by rounding a part between the peaks so that the byproducts can be accumulated in the rounded part. A screw includes male thread for making a screw groove(150). A flank angle between the flanks formed at both sides of peaks(110) of the thread is about 32 to 42°. A part between the peaks is rounded toward the axis of the screw to discharge byproducts generated when the screw groove is formed by the male thread.
Patent KR-20070028486-A (KR)
Title: Unmanned autonomous navigation system using satellite navigation information
Inventor: KIM JONG WOO
IPC: B62D6/00
Filed: 2007-01-12
Abstract: An unmanned navigation system and method using satellite navigation information are provided to increase accuracy in vehicle position and speed calculated by a navigation system by comparing a measured value with an accurate reference value. An unmanned navigation system using satellite navigation information includes a GPS(Global Positioning System) information receiver(101), an electronic map memory(102), a comparator(103), and a controller(104). The GPS information receiver is implemented on an unmanned vehicle and analyzes the current position and speed of the vehicle. The electronic map memory uses the speed and position from the GPS information receiver as reference data. The comparator compares the results from the GPS information receiver and the electronic map memory. When an error is out of a predetermined range, a manipulator controls a steering unit and a braking unit of the vehicle.
Patent KR-20080072475-A (KR)
Title: Card cheker's caller identification united method
Inventor: ROH HOH EUN
IPC: G06K17/00
Filed: 2007-02-01
Abstract: A method for displaying CID(Caller Identification) in a card checker is provided to display caller related information, stored in a customer information storage, on a screen when a call is received, thereby improving customer satisfaction by enabling a user to utilize the information in call consult with a caller. By inputting a setup key, a mode is converted into a CID mode(711,712). When a phone bell rings, a phone number detected by a CID unit is displayed on a screen of an LCD(Liquid Crystal Display) unit(713,714). Caller related information stored in a customer information storage is displayed on a card checker of the LCD unit(714). If caller information related to a caller number is present in the customer information storage, the stored information is displayed on the screen(718). Therefore, a user performs communication as viewing caller information displayed on the card checker LCD screen(719).
Patent KR-20080073559-A (KR)
Title: Organic electro luminescence display
Inventor: KIM SEONG HO
IPC: H05B33/22
Filed: 2007-02-06
Abstract: An organic electroluminescence display is provided to perform an input function and to improve display quality by forming a touch panel unit on an organic light emitting display panel without a separate transparent substrate. An organic electroluminescence display includes an organic light emitting display panel unit(1000) and a touch panel unit(2000). The touch panel unit is formed on the organic light emitting panel unit and includes a phase retardation plate(400) and a polarizing plate(500). The touch panel unit further includes a lower transparent electrode(320) formed on the organic light emitting panel unit, a base film(302) formed on the lower transparent electrode and having an upper transparent electrode(310), protrusions(330) formed on the upper or lower transparent electrode, and a common electrode formed between the upper and lower transparent electrodes.
Patent KR-20080082748-A (KR)
Title: Method for converting channel in the mobile communication terminal and the mobile communication terminal
Inventor: KIM SEONG NAM
IPC: H04B1/40
Filed: 2007-03-09
Abstract: A broadcasting channel conversion method of a mobile communication terminal and the mobile communication terminal are provided to convert a broadcasting channel automatically to confirm a program broadcasted through another channel while the first program received through the first channel is viewed. A mobile communication terminal outputs the first program received through the first channel(S10). If an automatic channel conversion mode is set, a controller outputs the second program received through the second channel changed through an output unit. If an automatic channel mode is off(S40), the mobile communication terminal completes the process.
Patent KR-20080082828-A (KR)
Title: Apparatus and method for downstream optical transmission using optical sources nondepending on wavelength in wavelength-division multiplexed passive optical networks, olt system using it
Inventor: KIM BYOUNG WHI
IPC: H04B10/29
Filed: 2007-03-09
Abstract: A downstream optical transmission device using a wavelength non-dependent light source in a WDM(Wavelength Division Multiplexing) PON(Passive Optical Network), a method thereof, and an OLT(Optical Line Terminal) system using the device are provided to use a separate multi-wavelength light source or a broadband light source, and to use an optical transmitter corresponding to the wavelength non-dependent light source, thereby efficiently performing management and maintenance of the OLT system. A protocol processor(101) processes an upstream electric signal transmitted from a subscriber side or a downstream electric signal to be transmitted to the subscriber side. Optical transmitters(204) use 'wavelength non-dependent semiconductor optical amplifiers'. A wavelength multiplexer/demultiplexer(203) operates as a 'wavelength demultiplexer' corresponding to a 'wavelength splitter' for multi-wavelength optical signals inputted through an optical circulator(202) by being outputted from a multi-wavelength light source(201), and operates as a 'wavelength multiplexer' for optical signals inputted from the optical transmitters.
Patent KR-20090000628-A (KR)
Title: 포탈사이트 광고방법 및 광고 시스템
Inventor: HWANG BO UI
IPC: G06Q30/02
Filed: 2007-03-09
Abstract: 포탈 사이트의 광고 방법 및 광고 시스템이 개시된다. 본 발명의 일측면에 따르면, 임의의 이용자를 대상으로 하는 기본 페이지가 형성되고, 광고주의 요청사항을 반영하여 특정 이용자를 대상으로 하는 타겟 페이지가 형성되는 단계, 포탈 사이트에 상기 임의의 이용자가 로그인하였는지 여부를 판단하는 단계, 및 상기 임의의 이용자가 로그인을 하지 않았을 경우 상기 기본 페이지가 디스플레이되고, 상기 임의의 이용자가 로그인한 경우 상기 임의의 이용자를 상기 특정 이용자로 인식하여 상기 특정 이용자와 매칭되는 상기 타겟 페이지가 디스플레이되는 단계를 포함하는 포탈 사이트의 광고 방법이 제공된다. 
       
     	포탈 사이트, 정보란, 광고란
Patent KR-20070047254-A (KR)
Inventor: CHO SUNG WOOK
IPC: B60B9/26
Filed: 2007-03-15
Abstract: 본 발명품은 차량 등의 이동시 도로나 지형지물의 불규칙함으로 인하여 차량 등의 본체에 가해지는 충격을 흡수하는 현가장치에 직접적인 근간을 이루고 있는 바퀴에 관한 것으로 고대에서 현대에 이르기까지 바퀴 발명이후 재료 이외에는 그다지 변형 발전되지 못하였으나 현대사회에 즈음하여 자동차등 각종 이동 수단이 발명되어 사용되는 시점에서 이동시 본체에 전달되는 각종 충격을 흡수하기 위하여 현가장치와 함께 가장 합리적인 방법인 고무와 공기로 형성된 바퀴(타이어)등으로 발전하여 사용되며 이와 함께 위 원형 바퀴의 약점인 악 조건(눈, 얼음, 모래, 진흙 등)에서 원활히 사용하기 위해 궤도 바퀴도 발명되어 현재 보편화 되어 쓰이고 있다. 하지만 이 또한 한계가 있다고 생각되어 차량 등의 현가장치와는 별도로 바퀴에만 충격흡수 장치를 고안하여 사용하면 공기를 이용한 바퀴나 궤도 바퀴의 문제점을 개선할 수 있다. 공기를 이용한 바퀴는 펑크를, 궤도 바퀴는 별도의 현가장치 없이 충격을 흡수할 수 있는 바퀴로 형성할 수 있는데 이점들을 이루기 위해 구동축에서 타이어 휠 경 통 사이에 일정한 모양을 형성한 응력이나 장력을 적절히 지닌 고탄성 스프링으로 장착하여 차량 등의 운행 시 전달되는 충격등을 바퀴에서 흡수한다. 또한 궤도차량 바퀴의 기능을 하기위해 공기를 넣지 않은 타이어와 함께 휠 경 통은 스프링으로 하여 중간에 장착된 스프링들과 서로 상호 작용하여 원형 바퀴가 장비 등의 하중에 접지 면이 넓게 펴져(찌그러져) 많은 마찰력이 형성됨은 물론 충격흡수 기능도 함께한다 
     또한, 중간에 장착되는 스프링 구조물도 한열이상 두어 바퀴 자체에 가해지는 좌우 또는 기타의 충격에 원활히 대처 할 수 있게 여러 구조물로 이루어지며, 운행 시 스프링 구조상 심한 비틀림이나 꺽임은 스프링의 탄성을 잃게 할수있으므로 한게치 이상으로 비틀림이나 꺽임을 방지하는 STOP BAR 를 장착하여 운행중 안전을 도모하는 것들로 본 발명품이 구성된다. 
       
     휠 스프링, 스프링 휠 구동축, 스프링 경통, 스프링 휠 경통, 스톱 바(STOP BAR), 무공기타이어 , 타이어, 아이젠, 스프링 휠 관절, 바퀴고정대, 다단계 스톱바 휠 코일 스프링, POLY CABONATE 휠스프링,