baber/WOPTO huggingface dataset:
Patent KR-20020028045-A (KR)
Title: A light guidance sheet for back light unit
Inventor: AHN UNG GWAN
IPC: G02F1/1335
Filed: 2000-10-06
Abstract: PURPOSE: A light guide sheet for back lights is provided to be replaced a diffusion sheet, a prism sheet and a protective sheet, to induce light radiated from a light source to a liquid crystal panel without a loss. And the light guide sheet for back lights prevents the generation of contamination and scratch that may be generated during an assembly process. CONSTITUTION: A prism sheet(34) in which many unit lenses(33) are arranged in a one-dimensional direction or two-dimensional direction with a predetermined pitch on an upper surface of a transparent material sheet(32). A protective coating layer(37) is formed on the unit lenses(33) and comprises transparent resin(35) to which transparent corpuscles are dispersed. A light diffusion coating layer(40) is formed on a lower surface of the transparent material sheet(32) and comprises transparent resin(38) to which light diffusion beads(39) are dispersed. The unit lenses(33) having a delta shape are arranged in parallel. A content of the transparent corpuscles dispersed to the protective coating layer(37) occupies 0.2 to 50 weight % based on the weight of the protective coating layer(37).
Patent KR-20010040119-A (KR)
Title: Liquid crystal display device and fabrication method of the same
Inventor: KATO TAKESHI
IPC: G02F1/1333
Filed: 2000-10-18
Abstract: PURPOSE: To provide a liquid crystal display device with improved productivity. CONSTITUTION: Two substrates 1a, 1b placed opposite to each other via a gap are provided. A sealant 2 to seal peripheral parts of the substrates 1a, 1b is provided. A liquid crystal material 5 sealed in an interior space formed with the substrates 1a, 1b and the sealant 2 is provided. An injection port part 8 through which the liquid crystal material 5 is injected into the interior space is provided in such a way as to be formed on the sealant 2. A groove 9a that is constructed corresponding to the position and the shape of the port part 8 is provided at least on one surface of the respective surfaces of the substrates 1a, 1b in contact with the liquid crystal material 5.
Patent KR-20010040205-A (KR)
Title: Shadow mask
Inventor: AOKI TAKAHITO
IPC: C22C38/10
Filed: 2000-10-27
Abstract: PURPOSE: To provide a shadow mask for a color cathode-tube ray in which the shape of a hole in an opening part is improved, and the expansion of the diameter of the large hole part more than that to be needed is prevented. CONSTITUTION: This shadow mask for a color cathode-ray tube is composed of an iron base alloy sheet containing, by mass, 31.0 to 38.0% nickel and 1.0 to 6.5% cobalt, in which the crystal grain size is 10 to 12, and the above problems are solved by the iron base alloy sheet in which the crystal grain size in the cross-sections in the directions parallel or orthogonal to the rolling direction of the iron base alloy sheet is <= 50 μm, and the average crystal grain size in the cross-section parallel to the rolling direction of the iron base alloy sheet is <= 30 μm.
Patent KR-20020033894-A (KR)
Title: The service method for the information of the celebrity using analysis of user preference
Inventor: KIM WON GUK
Filed: 2000-10-30
Abstract: PURPOSE: An information providing service method is provided to store information on popular entertainers, sportsmen or politicians, to continuously update the information, to analyze preference data of a user personal profile, and to offer the updated information to the user based on the preference analysis. CONSTITUTION: The method comprises steps of storing detailed information on popular entertainers, sportsmen and politicians at a database, and updating the information whenever an important event or activity occurs at them(S10), analyzing preference data among a user personal profile with an analysis program, and extracting the information corresponding to preference reasons or interests from the database(S20), transmitting the extracted information to a member over a wired or wireless communication network(S30), enabling the member to transmit member identification data to a service system via a web server, and making the service system check the member identification data for a member authentication(S40), searching for the information of the popular persons in the database based on the member data(S50), extracting members having similar preference or interests(S60), and enabling the member to input characters or symbols and displaying the input data for a plurality of members accessing a real time message exchange module(S70).
Patent KR-20020037453-A (KR)
Title: An electronic medical insurance card and an electronic medical insurance card system and operating method thereof
Inventor: CHO IN HO
IPC: G06K19/07
Filed: 2000-11-14
Abstract: PURPOSE: An electronic medical insurance card and a system and a method for operating the electronic medical insurance card are provided to offer the electronic medical insurance card embedding an IC chip capable of storing the personal detail of an insured person and a dependent family and the insurance payment record, and paying an expense relating to various kinds of medical treatment. CONSTITUTION: The electronic medical insurance card is composed of a non-contact type RF(Radio Frequency) card base(110) including the IC chip(111) and an antenna coil(112). The characters such as a name of the insured person and a card number are printed on the surface of the electronic medical insurance card. The antenna coil occurs the induction generation influenced by the electromagnetic field formed by a card reader as approaching to the card reader and driven by the electric voltage obtained from the induction generation drives the IC chip.
Patent KR-20020037854-A (KR)
Title: Transmitting circuit of universal asynchronous receiver/transmitter for hardware flow control
Inventor: JUNG JUN GEON
IPC: H04L7/00
Filed: 2000-11-15
Abstract: PURPOSE: A transmitter circuit of a universal asynchronous receiver/transmitter(UART) for hardware flow control is provided, which reduces a CPU load and also reduces a current consumption. CONSTITUTION: The transmitter circuit includes a CTS signal generator unit generating a CTS signal in response to a CTS external input signal inputted from a counter part, and a transmission start state signal generator unit(200) generating a transmission start state signal in response to the CTS signal generated from the CTS signal generator unit, a CTS control signal and start state condition signals. The CTS signal generator unit includes a counter(104) down-counting data provided from the external and outputs an enable signal when the count value becomes '0', and a logic circuit(106) outputting a main clock signal as a clock signal in response to the enable signal from the counter, and a latch unit(108) outputting the CTS external input signal by being synchronized to the clock signal from the logic circuit. The logic circuit is constituted with an AND gate, and the latch unit is constituted with D-flip flops.
Patent KR-20020038841-A (KR)
Title: Soldering apparatus of deflection yoke
Inventor: KIM HAN JUNG
IPC: B23K3/00
Filed: 2000-11-18
Abstract: PURPOSE: A soldering device of a deflected yoke is provided to simplify the procedure of its soldering work by automating a terminal plate thereof, thus reducing the cost of production and improving the productivity thereof. CONSTITUTION: The soldering device(100) of a deflected yoke comprises a rotating table(110) installed over a working stand(101) and having a plurality of fixing chucks(111) arranged in an equal distance along the circumference thereof; an insertion/extraction part(120) installed in a concentric first divided plane on the top surface of the working stand for the insertion/extraction of the deflected yoke toward the fixing chuck; first and second application parts installed in a second and a sixth divided plane for the application of a flux onto upper and lower terminal plates of the deflected yoke; first and second preheating parts installed in a third and seventh divided surface; first and second soldering parts installed in a fourth and eighth divided planes; a reversal part(160) installed in a fifth divided plane for preparing the soldering work of the lower terminal plate by inverting the deflected yoke soldered by the first soldering part with a driving shaft(162) connected with the fixing chuck and a small motor(161).
Patent KR-20020039535-A (KR)
Title: A wall construction of a fomentation room
Inventor: JIN GONG SUN
IPC: A61H33/06
Filed: 2000-11-22
Abstract: PURPOSE: Structure of a yellow soil wall member for a fomentation room is provided to improve the efficiency of heat as well as the emission of far infrared rays and germanium, and to maximize the effect of fomentation. CONSTITUTION: The fomentation room is constituted by assembling plural wall units(100), and each wall unit consists of a structure(210) formed with plural spaces of a constant shape; an iron plate(220) having stainless bands(221) arranged in a constant form; a yellow soil wall; an adhesion part applied on the outer surface of the yellow soil wall; and a yellow soil wall member(200) attached to the adhesion part of the yellow soil wall.
Patent KR-20010016392-A (KR)
Title: Manufacturing usage of wet coating leather
Inventor: PAEK EUN HA
IPC: C14C3/22
Filed: 2000-12-07
Abstract: PURPOSE: Provided is a process for producing wet coated leather, which includes attaching raw leather to a coating film not separated from oxford raw cloth(or a PET film), thereby wrinkles and irregular tension are eliminated perfectly and the thickness of coated layer can be thin. CONSTITUTION: The process comprises the steps of: coating the oxford cloth(101)(or the PET film) with a chemicals containing a polyurethane resin and DMF; coagulating, cleaning, and then drying; applying an adhesive(103) to the surface(A) of the coated film(102); attaching the raw leather(104) and then drying to obtain the wet coated leather; separating the wet coated leather from the oxford cloth(101)(or the PET film); treating the surface(B) of the coated film(102).
Patent KR-20020045003-A (KR)
Title: Countermeasure Against Denial-of-Service Attack in Authentication Protocols Using Public-Key Encryption
Inventor: KIM JEONG JUN
IPC: H04L9/32
Filed: 2000-12-07
Abstract: PURPOSE: A method for defending a denial-of-service attack in an authentification protocol using public key coding is provided to defend the denial-of-service attack by coding a user's random number using a public key of a server. CONSTITUTION: A server(100) generates a random number(101) and transmits the generated random number(101) to a user(110). The user receives the random number(101) from the server(100), generates a random number(111), encodes two random numbers(101,111) to a public key of the server(100), and transmits a cryptogram(112) to the server(100). The server(100) receives the cryptogram(112) from the user(110), decodes the cryptogram(112) to extract the random numbers(101,111) from the cryptogram(112). The server(100) compares the decoded random numbers with the random numbers(101,111).
Patent KR-20010062460-A (KR)
Inventor: KUENZL BERND
IPC: F01P11/16
Filed: 2000-12-15
Abstract: PURPOSE: A coupling device is provided to eliminate the effect of tilting moment irrespective of a position of a bracket whenever it is fitted. CONSTITUTION: In a coupling device, a wall(8) of a primary element(6) has two retaining openings(10,10') which are mutually conforming and also are matching to a retaining groove(22) arranged on a secondary element(2), legs(16,16') having waveform sections of a U-shaped bracket(12) formed as a spring element are penetrating through each retaining opening, the waveform sections are possible to be bent to take a more linear shape when the legs are pushed into the retaining groove, thereby a pre-load force is built up to hold the secondary element within a guide opening, and the waveform section of one of the leg is arranged staggered against the waveform section of the other leg.
Patent KR-20020049667-A (KR)
Title: The making method for the cold rolled high strength sheet steel with excellent ductility
Inventor: SON WON HO
IPC: B21B1/00
Filed: 2000-12-20
Abstract: PURPOSE: A method for manufacturing high strength cold rolled sheet steels for use in automobile panels is provided, which can produce a cold rolled sheet steel having excellent ductility and yield strength without stretcher strain by relatively low temperature annealing. CONSTITUTION: The method includes the steps of finish hot rolling a steel slab(the atomic ratio of Cu/S is 2-10) comprising C 0.0005-0.003 wt.%, Mn 0.1 wt.% or less, S 0.003-0.02 wt.%, P 0.03-0.07 wt.%, Al 0.01-0.1 wt.%, N 0.005 wt.% or less, Cu 0.05-0.3 wt.%, a balance of Fe and other inevitable impurities at higher than Ar3 transformation temperature; cold rolling the steel sheet at a reduction ratio of 50-90 %; and continuous annealing the cold rolled steel sheet in the temperature range of 700-880°C for 10 seconds to 5 minutes.
Patent KR-20020053586-A (KR)
Title: Input shaft supporting equipment for assembled pinion valve body
Inventor: YOO GIL SANG
IPC: B62D5/08
Filed: 2000-12-27
Abstract: PURPOSE: An input shaft supporting device of a pinion valve assembly is provided to minimize the failure rate of a pinion valve by evenly supporting the load fitted in the opposite portion and avoiding the deformation of a material. CONSTITUTION: An input shaft supporting device of a pinion valve assembly comprises a servo motor(10), a ball screw(20) to convert the rotational motion of the servo motor to the linear motion, a first support member(30) linearly moving by the ball screw and having an inclined face(32) on the upper surface, a load cell(40) installed between the ball screw and the first support member to sense the load change transmitted from the support member, a second support member(50) installed orthogonal to the inclined surface of the first support member to support an input shaft of a pinion valve assembly(1), a spring(52) to provide the second support member with a restorative force, and a control unit(60) to control the load cell and the servo motor.
Patent KR-20010025440-A (KR)
Inventor: SONG HUN O
IPC: E03C1/266
Filed: 2000-12-27
Abstract: PURPOSE: A new sink is provided to save the costs required to purchase garbage bags by disposing garbage instantaneously, to solve the problem due to garbage disposal issued in a social problem such as conveyance costs and incineration costs and to prevent the river contamination. CONSTITUTION: In a new sink in combination with a sink(1) and a mixer(7), once water is drained and the residue of food is filtered after washing-up, the residue of food is crushed and discharged together with water by pushing a button and water and refuse are discharged separately by coupling two pipes.
Patent KR-20010023670-A (KR)
Title: Method, Compositions and Kits for Increasing the Oral Bioavailability of Pharmaceutical Agents
IPC: A61K47/22
Filed: 1998-09-03
Abstract: A combination of 9,10-dihydro-5-methoxy-9-oxo-N-[4-[2-(1,2,3,4-tetrahydro-6,7,-dimethoxy-2-isoquinolinyl)ethyl]pheny]-4-acridinecarboxamide or a salt thereof and paclitaxel and its analogs or derivatives.
Patent KR-20010030908-A (KR)
Title: 1단 임플란트
IPC: A61C13/00
Filed: 1998-10-02
Abstract: 본 발명은 잇몸이 그 위를 덮고 있는 생턱뼈 내에 이식되는 1단 치과용 임플란트에 관한 것으로, 이러한 임플란트는 외면이 턱뼈에 대면하는 대체로 원통형의 본체 섹션과; 본체 섹션이 턱뼈와 대면하는 때에 이 본체 섹션에 부착되어 그 위를 덮고 있는 잇몸을 통과하여 연장하는 헤드 섹션을 포함한다.  헤드 섹션은 대체로 잇몸의 외층 부근에 위치하는 단부를 구비한다.  임플란트는 헤드 섹션의 상기 단부의 개구로 연장하는 헤드 섹션 내의 보어를 추가로 포함한다.  이 보어는 제1 벽과, 제2 벽, 그리고 제3 벽에 의해 획정된다.  제1 벽은 내측 나사부이다.  제2 벽은 제1 표면보다 직경이 크며 실질적으로 원통형이다.  또한, 제2 벽은 제1 벽으로부터 단부를 향해 연장한다.  제3 벽은 제2 벽으로부터 개구를 향해 연장하며, 제2 벽보다 큰 직경으로 개구를 향해 벌어진다.  임플란트는 환자의 구강 내의 장소로 삽입 기구에 의해 딜리버리되고, 이 삽입 기구가 임플란트 보어의 제2 벽 내에서 확장됨에 따라 그 삽입 토오크를 견딜 수 있는 꼭 끼는 결합이 전개된다.  임플란트에는 임플란트의 상부 위에서 연장하는 포스트가 끼워질 수 있다.  포스트에는 잇몸 형성 임시 포스트가 끼워질 수 있다.
Patent KR-20010031464-A (KR)
Title: 유리 세정용 용액의 재생방법과 재생장치, 규산염 유리의세정방법과 세정장치 및 음극선관
IPC: C03C15/00
Filed: 1999-08-23
Abstract: 본 발명은 세정조(11)로부터 배출된 세정액(1)에 플루오르화물을 포함하는 처리액(2)을 첨가하고, 세정액 중의 플루오르화규산과 반응시켜 플루오르화규산염을 포함하는 침전물(4)을 석출시키고, 이를 제거한다. 재생장치(10)에서 재생시킨 세정액은 다시 세정조(11)로 반송되어 음극선관용 패널(20)의 세정액으로서 이용된다.
Patent KR-20010033885-A (KR)
IPC: B24D3/06
Filed: 1999-11-05
Abstract: 베이스원판은 Si를 주성분으로 하는 급냉응고 알루미늄합금으로서, Si를 15∼40wt%, Cu를 0.5∼6wt%, Mg를 0.2∼3wt% 및 실질적으로 알루미늄으로 이루어지는 잔부를 함유하고, 동시에 그것의 합금중의 Si입자의 평균입자경이 5㎛이하, 그것의 합금중의 기공율이 1vol%이하, 그것의 베이스원판의 인장강도와 비중의 비(인장강도[MPa]/비중)가 90이상, 그것의 베이스원판의 피로강도와 비중의 비(피로강도[MPa]/비중)가 30이상인 것이다. 한번의 합금제조 공정으로 많은 베이스원판을 제조할 수 있어서 저코스트화가 가능하다. 또, Si의 함유율이 높고 탄성율이 높으므로, 고주속시의 원심력에 의한 연장이나 변형이 억제되어 숫돌입자층의 박리가 알맞게 방지된다. 또, 5㎛이하의 미세한 Si입자가 석출되고 동시에 그것이 균일하게 분산 되므로서, 고강도가 분산없이 얻어져서 높은 안정성을 얻을 수 있음과 동시에, 부서지기 쉬워서 강도가 저하되는 것이 억제되어, 고강도가 분산되지 않고 얻어져서 높은 안정성이 얻어진다. 또, 알루미늄합금의 기공율이 1vol%이하이기 때문에, 알루미늄합금의 강도가 높아짐과 동시에, 연삭액에 침범되기 어렵게 된다. 또, 베이스원판의 인장강도와 비중의 비나 피로강도와 비중의 비가 높아지게 되므로, 베이스원판의 강도등에 대하여 높은 안정성이 얻어져서 장시간의 사용 및 장기간의 재이용이 가능하게 된다. 더욱더 알루미늄합금으로 이루어지는 베이스원판을 그대로 재이용할 수 있으므로, 폐기처리가 불필요하게 되고, 환경문제를 고려하는 점에서 유리하게 된다.
Patent KR-20010040896-A (KR)
Title: 저온 광섬유에 고강도 광을 결합하는 장치 및 방법
IPC: G02B6/42
Filed: 1999-01-19
Abstract: 고강도 광과 저온 용융 온도, 저 NA광섬유 사이에 공간 필터로서 고온, 저NA 광섬유를 사용하는 저온 용융 온도를 갖는 광섬유에 고강도 광을 결합하는 방법 및 장치. 선택 가능한 실시예에 있어서, 공간 필터가 광섬유의 융합 다발로 구성된다. 광원이 고강도 아크 램프 또는 원격 광원으로부터 광을 전송하는 고NA, 고온 용융 온도를 갖는 광섬유일 수 있다.
Patent KR-20010042157-A (KR)
Title: 염료를 함유하는 광전지의 제조방법
IPC: H01G9/20
Filed: 1999-03-19
Abstract: 본 발명은 제1 전극층, 양성의 짝전하로부터 발광성 전자를 공간적으로 분리시킬 수 있도록 감광성 염료 또는 색소의 층을 갖춘 투명한 광대역 간극의 반도체층, 전해물층, 촉매층 및 제2 전극층의 순서로 이루어진 광전지의 제조방법에 관한 것으로서, 
     상기 제1 전극층 및 반도체층 및/또는 제2 전극층 및 촉매층은 후에 제거되는 가요성 임시 기판상에 부착되고, 임시 기판상에 부착되는 전극 또는 전극들은 투명하며, 상기 광전지는 압연 방법으로 제조되며, 공정 조건을 선택하는데 더 큰 선택성을 제공하는 것을 특징으로 한다.
Patent KR-20010078740-A (KR)
Title: 차량의 운전 안정도를 제어하기 위한 제어 회로
IPC: B60T8/1755
Filed: 1999-06-22
Abstract: 본 발명은 차량의 운전 안정성을 제어하는 제어 회로에 관한 것으로서, 트랙 코스를 결정하는 입력량은 차량의 특성을 재생하는 차량 기준 모델에 기초해서 차량 기준 모델에 기억된 파라미터에 따라 제어량에 대한 적어도 하나의 공칭값을 결정하는 차량 모델 회로에 입력된다.
Patent KR-20010053167-A (KR)
Title: 구리/탄탈륨 기판에 유용한 화학 기계적 연마용 슬러리
IPC: H01L21/321
Filed: 1999-06-25
Abstract: 본 발명은 연마제, 산화제, 착화제, 막형성제 및 유기 아미노 화합물을 포함하는 제1 CMP 슬러리, 연마제, 산화제 및 아세트산을 포함하며 산화제 대 아세트산의 중량비가 10 이상인 제2 연마용 슬러리, 및 구리를 함유하는 기판 및 탄탈륨 또는 질화탄탈륨, 또는 탄탈륨 및 질화탄탈륨을 모두 함유하는 기판을 순차적으로 연마시키기 위하여 제1 및 제2 연마용 슬러리를 사용하는 방법에 관한 것이다.
Patent KR-20020063310-A (KR)
Inventor: KWON HYUK BOK
IPC: F16C3/00
Filed: 2001-01-05
Abstract: PURPOSE: A precision shaft is provided to reduce allowable error during left to right rotation and achieve improved quality of mechanical parts. CONSTITUTION: A precision shaft mechanism comprises a handle(1), a rotary shaft(2) made of a steel material, a rear reinforcement piece(3), a body(4) of machine, a piece(5) to be attached to the body of machine, and bolts. The precision shaft operates at a high accuracy.
Patent KR-20020070592-A (KR)
Title: Tape mounting machine
Inventor: AHN SEUNG CHEOL
IPC: H01L21/58
Filed: 2001-03-02
Abstract: PURPOSE: A tape mounting apparatus is provided to eliminate the necessity for transferring a wafer to a receiving receptacle of which the side surface is open, by absorbing the upper surface of the wafer received in the receiving receptacle like a jar pack of which the upper surface is open. CONSTITUTION: A plurality of thin wafers(101) are supplied to a load unit, having an upper surface on which an integrated circuit is formed. An align unit is positioned in the center of the lower surface of the respective wafers. The align unit aligns the wafer over a wafer holder in which a vacuum absorbing unit(153) is formed. A mount unit makes tape attached to the lower surface of the aligned wafer. An unload unit unloads the wafer to which the tape is attached. The first wafer transferring unit(150a) transfers the wafer from the load unit to the align unit. The second wafer transferring unit transfers the wafer from the align unit to the mount unit. The third wafer transferring unit transfers the wafer from the mount unit to the unload unit. The load unit includes the jar pack(105) which is the receiving receptacle of which the upper surface is open. The wafers are stacked in the jar pack by interposing an interleaf(102). The first wafer transferring unit includes a wafer finger(151) and the first detector(152a), wherein the wafer finger having the vacuum absorbing unit for absorbing the upper surface of the wafer and the first detector differentiates the wafer from the interleaf.
Patent KR-20020073850-A (KR)
Title: Paper Guide Device of Thermal Printer
Inventor: KIM DO HYEON
IPC: B41J2/315
Filed: 2001-03-16
Abstract: PURPOSE: A paper guide device for printer is provided, in which spiral rod is extended outward from the side surface of the paper guide device, to thereby allow a user to easily operate the device even when the space is narrow. CONSTITUTION: A paper guide device(70) comprises a lower plate(72) having a fixed guide member(76) arranged at an end of the upper surface of the lower plate so as to guide an end of a thermosensitive paper(20); a pair of guide rods(80) spaced apart from each other at a curved portion(78) formed at the other end of the lower plate; a spiral rod(82) arranged at the curved portion of the lower plate and between the guide rods, such that the spiral rod is rotatable in a free manner; and a movable guide member(90) coupled with the spiral rods and guide rods such that the spiral rod and guide rods are penetrated through the movable guide member, wherein the movable guide member moves in accordance with the rotation of the spiral rod and guides the other end of the thermosensitive paper.
Patent KR-20020007134-A (KR)
Title: Auto recovering no fuse breaker
Inventor: CHOI KUN KU
IPC: H01H83/02
Filed: 2001-03-20
Abstract: PURPOSE: An automatic return-type high speed breaker is provided to promptly perform an automatic return and cuts off the current by an electronic control. CONSTITUTION: A power breaker(100) includes a current sensing part(110), a cut-off signal generating part(120), a voltage applied signal generating signal(130), a driving part(140), and a switch(150). The power breaker(100) is interposed between a load(20) and a power supply connected by wires. The current sensing part(110) converts a current inputted to the load(20) into a secondary voltage, and recognizes a current condition of a load by using the voltage. The cut-off signal generating part(120) compares a current to be supplied to the load(20) with a supply current sensed by the current sensing part(110), and generates a cut-off signal for cutting off the supply current when the supply current is larger than a rated current.
Patent KR-20020014655-A (KR)
Title: A search method in a used car search support system
Inventor: SHISHIDO HIRONOBU
IPC: G06F17/30
Filed: 2001-03-30
Abstract: PURPOSE: To efficiently retrieve used car information. CONSTITUTION: When retrieval conditions are inputted from a client 20, the number of hit items in each selling price band is guided from a server 10 to the client 20. When the desired selling price band is designated in the client 20, the user car information in the designated selling price band is transmitted, from the server 10 to the client 20.