baber/WOPTO huggingface dataset:
Patent KR-20040061110-A (KR)
Title: Structure for mounting subsidiary-heater
Inventor: JUNG CHUN SIK
IPC: B60H1/08
Filed: 2002-12-30
Abstract: PURPOSE: An auxiliary heater mounting structure is provided to simplify the structure of an air conditioner and to facilitate production of parts, by integrally forming the auxiliary heater to a heater core. CONSTITUTION: In a mounting structure of an auxiliary heater, an auxiliary heater mounting part(25) is formed by making the width of some tubes(23b) among plural cooling tubes(23) of a heater core(20) small. A box-shaped auxiliary heater(10) is installed to the auxiliary heater mounting part. The heater core comprises first and second tanks, the cooling tubes, and plural radiant fins installed between the tubes. A hook(26) is formed to the auxiliary heater mounting part. A hook-fastening part to which the hook is separably fitted is formed to the auxiliary heater.
Patent KR-20040060635-A (KR)
Title: Method of estimation for powder/binder separation in powder metallurgy process
Inventor: JUNG SEONG TAEK
IPC: G05B19/18
Filed: 2002-12-30
Abstract: PURPOSE: A method for estimating the powder/binder separation failure generated in a powder injection molding process is provided, which is useful information for the design of the products, the design of the mold and the design of the forming process condition. CONSTITUTION: A method for estimating the powder/binder separation failure generated in a powder injection molding process includes: an experiment step of preparing a reference for the failure and the good by measuring the densities of each part of the mold products by using a standard mold; a numerical analyzing step of calculating the temperature, the speed, the viscosity, the shear strain and the shear stress through the computer simulation for the mold process condition performed at the experiment step; a failure predict recording step of relating to the powder/binder separation by using the measured experiment data and the expected numerical analyzed result; and a step of determining the failure for the powder molding process having a real complex shape by using the recorded and predicted formula.
Patent KR-20040061765-A (KR)
Title: Polyoxymethylene composition for speaker grille
Inventor: LIM MOK GEUN
IPC: C08K5/103
Filed: 2002-12-31
Abstract: PURPOSE: A polyoxymethylene resin composition for a speaker grill is provided, to improve weather resistance and fluidity and to reduce gloss. CONSTITUTION: The polyoxymethylene resin composition comprises 100 parts by weight of a polyoxymethylene resin; 0.01-5 parts by weight of a sorbitan fatty acid ester; 0.1-5.0 parts by weight of a polyalkylene glycol or an alkylene polyether-ester block copolymer; optionally 1.0-5.0 parts by weight of an inorganic filler having a particle size of 5.0 micrometers or less; and optionally 0.01-5.0 parts by weight of a divalent aliphatic alcohol or a low melting point polyamide resin having a melting point less than 190 deg.C. Preferably the polyalkylene glycol is a polyethylene glycol having a molecular weight of 5,000-50,000.
Patent KR-20020014830-A (KR)
IPC: H04N5/445
Filed: 2000-06-26
Abstract: 본 발명은 온 스크린 디스플레이 그래픽의 색상을 조절하여 영상의 색상을 결합될 OSD 그래픽과 정합하기 위한 장치 및 방법에 관한 것이다. 하나의 특징에 있어서, 복수 개의 OSD 색상 팔레트(103, 105) 중의 선택된 하나의 팔레트는 복수 개의 신호원 중의 선택된 하나의 신호원에 대한 그래픽을 생성하는데 사용된다. 이와 같이 함으로써, 적절하게 포맷된 팔레트가 유사하게 포맷된 입력 신호를 위한 그래픽을 생성하는데 사용된다. 즉, 아날로그 신호원은 Y, P I , P Q 포맷 신호를 갖는 팔레트부터 생성된 그래픽과 결합될 것이다. 그 결과, 색상 보상 매트릭스는 각 신호원으로부터 그래픽 및 영상의 모두를 적절히 보상한다. 다른 특징에 있어서, 복수 개의 매트릭스(107, 109) 중의 바람직한 하나가 OSD 신호원에 작용하여 OSD 색도도를 입력 신호 색도도와 정합시킨다.
Patent KR-20020031398-A (KR)
IPC: C02F1/56
Filed: 2000-08-01
Abstract: 본 발명은 음이온성 및 비이온성 분산 중합체를 이용하여 공업 폐수를 정화 및 탈수하는 방법에 관한 것이다.
Patent KR-20020052192-A (KR)
Title: Use of lamellar crystallites as extreme pressure additives in aqueous lubricants, lamellar crystallites and method for obtaining same
IPC: C10N10/02
Filed: 2000-10-23
Abstract: The invention concerns the use as extreme pressure additive in aqueous lubricants used for deforming or transforming metals, lamellar crystallites having a length (L) ranging between 0.1 and 100 mum, a width (I) ranging between 0.5 and 30 mum and a thickness (e) ranging between 5 and 200 nm, comprising a stack of organic phases (O) and of aqueous solutions (A) in the sequence O/[A/O]n, n being an integer different from 0 and such that the stack has a thickness between 5 and 200 nm, the organic phases comprising: i) at least an acid selected among: carboxylic acid, saturated or unsaturated, comprising at least 5 carbon atoms, acid phosphate esters of formula (RO)x-P(=O)(OH)x' wherein R is a hydrocarbon radical, optionally polyalkoxylated, x and x' being equal to 1 or 2, provided that the sum of x and x' is equal to 3, said acid being optionally neutralized by an organic or mineral base; and at least a metal in the form of a multivalent ion; or (ii) at least a polyalkylene block polymer having a cloud point preferably ranging between 30 and 90° C. The invention also concerns said lamellar crystallites and a method for obtaining them.
Patent KR-20020065492-A (KR)
IPC: C12Q1/6881
Filed: 2000-10-24
Abstract: 이식 치료에 적합하고, 신경 손상을 복구시키는 다기능 세포를 예를 들어, 차등 표출에 의해서, 대조구 세포에서 얻은 것과 비교할 수 있는 선택된 세포의 유전자 발현 프로파일로부터 동정하였다.
Patent KR-20030004310-A (KR)
IPC: B64C13/04
Filed: 2001-05-16
Abstract: 틸트로터 항공기(11)는 통합 엔빌로프 보호 기능(13)을 갖춘 다중 모드 틸트로터 너셀 제어 시스템을 갖는다. 틸트로터 항공기(11)는 동체(15), 꼬리부(17), 좌측 날개 부재(21a), 우측 날개 부재(21b), 우측 엔진 너셀(23b), 좌측 엔진 너셀(23a), 좌측 프로프로터(25a) 및 우측 프로프로터(25b)를 갖는다. 너셀 제어 시스템의 작동은 틸트로터 어셈블리의 미리 선택된 회전 운동을 일으킨다.
Patent KR-20020063267-A (KR)
IPC: B29C65/00
Filed: 2000-12-19
Abstract: A frictionally welded, filled thermoplastic article is strengthened by restricting lateral flow of molten material out of the gap between the workpieces, so that a molten pool of substantial depth is maintained from the beginning of melting to the onset of solidification. The restriction to lateral flow of material is provided by dams (projections) of essentially rectangular cross-section at each lateral edge of one of the workpieces, while the other workpiece has a substantially flat mating surface.
Patent KR-20030005184-A (KR)
IPC: A61K8/36
Filed: 2001-01-27
Abstract: 하기를 함유하는 화장품 제제를 개시한다: (a) 월터리아 인디카 ( Waltheria indica )의 추출물 및 (b) 아스코르브산, 페룰산(ferulic acid) 및/또는 코지산(koji acid).
Patent KR-20030005242-A (KR)
IPC: B24B37/32
Filed: 2001-03-28
Abstract: 화학기계적 평판화에서 웨이퍼(4)를 고정시키기 위한 웨이퍼 캐리어 헤드 조립체(2)가 설명되었는데 웨이퍼 캐리어 헤드(2)와는 독립적으로 이동하는 아래쪽으로 돌출된 웨이퍼 지지링(62)을 포함하고 연마표면(18) 위의 웨이퍼(4)의 변부(8,12)를 지지한다. 웨이퍼(4)에 균일한 윗방향 힘과 균일한 아랫방향 힘중 하나를 적용하는 조절 가능한 웨이퍼 고정장치(52,80)가 포함된다. 위쪽방향의 힘을 적용하여 웨이퍼 고정장치(52,80)는 웨이퍼를 연마표면에 이송 및 유지시킨다. 아랫방향의 힘을 적용하여 웨이퍼 고정장치(52,80)는 웨이퍼를 연마표면(18)에 유지시키며, 웨이퍼(4)가 균일하게 연마되도록 한다. 웨이퍼 캐리어 헤드 조립체(2)는 웨이퍼가 연마될 때 연마표면(18)과 웨이퍼(4) 사이에 평행한 변화를 수용하도록 구성된다.
Patent KR-20020086721-A (KR)
Title: 발효 브로쓰로부터 염기성 아미노산을 분리하는 방법
IPC: C12P13/10
Filed: 2001-03-15
Abstract: 본발명은 가교율이 낮은 강산 양이온 교환수지를 발효 브로쓰와 접촉하여 염기성 아미노산을 분리해내는 것을 포함하는, 발효 브로쓰로부터 염기성 아미노산을 분리하는 방법에 관한 것이다. 이 방법은 발효 브로쓰로부터 리신을 정제하는 통상의 방법과 비교해 볼때, 생성 수율 및 순도가 높은 리신을 제공할 뿐 아니라, 원료 처리량도 높다.
Patent KR-20030016244-A (KR)
IPC: G01N29/02
Filed: 2001-04-05
Abstract: 본 발명은 물질을 받는 막 층을 갖는 센서, 기준 공진 주파수에서 막을 구동시키는 발진 장치, 상기 막 위의 물질의 존재에 의해 발생되는 기준 공진 주파수의 변화를 결정하는 주파수 검출 장치 및 상기 물질의 질량을 결정하는 질량 결정 장치를 포함하며, 상기 기준 공진 주파수의 변화는 상기 물질의 질량을 나타내는 물질의 질량을 측정하는 장치에 관한 것이다.
Patent KR-20030030998-A (KR)
Title: Nasal ointment based on white petroleum jelly
IPC: A61K31/4166
Filed: 2001-05-31
Abstract: A nasal ointment contains a mixture of saturated hydrocarbons with a viscosity according to DIN 51 562 of above 6 mm<2>/s (100 degrees C). The ointment can also contain additives which confer a soothing/healing effect.
Patent KR-20030007769-A (KR)
Title: Dynamically configurable page table
IPC: G06F12/00
Filed: 2002-03-25
Abstract: The reliability and operability of semiconductor devices is improved using a circuit arrangement and method that improves the ability to manage data storage and retrieval. According to one example embodiment of the present invention, a memory device includes a dynamically configurable page table having a plurality of pages. The page table is dynamically configurable to at least two organizations, and each page includes a multitude of memory storage locations adapted to store data. A controller is adapted to track memory requests and to configure the page table to one of the at least two organizations during a memory refresh cycle, wherein the configuration is effected in response to the tracked memory requests. In this manner, the page table can be adapted to improve the effectiveness and speed of data storage and retrieval.
Patent KR-20040067215-A (KR)
Inventor: YOON YEON
IPC: C23C14/12
Filed: 2003-01-22
Abstract: PURPOSE: A thin film forming method of organic material deposition apparatus is provided which is capable of adjusting flatness of the organic thin film as forming an organic thin film using a film control guide operated on a linear deposition source even if both substrate and cell in vacuum chamber are not rotated. CONSTITUTION: The thin film forming method of organic material deposition apparatus is characterized in that substrate and linear deposition source(20) are respectively fixed to upper and lower parts of the vacuum chamber inside vacuum chamber, film control guide(31) of guide driving member(30) is installed at an upper side of container(21) of the linear deposition source, the film control guide is moved fast at both side positions of the linear deposition source along the container while the film control guide is moved slowly at a central position of the linear deposition source so that an organic thin film of the substrate is formed correspondingly to flatness in a longitudinal direction of the substrate, and quantity of organic material evaporated to a side of vanes(32) of the film control guide is limited so that the organic thin film of the substrate is formed correspondingly to flatness in a width direction of the substrate, wherein the film control guide of the guide driving member and the linear deposition source are respectively installed at both sides so that the vanes of the film control guide are simultaneously moved along the container of the linear deposition source by simultaneously driving the guide driving member, wherein the film control guide of the guide driving member and two of the linear deposition sources are installed at one side so that the vanes of the film control guide are simultaneously moved along the container of the linear deposition source by driving the guide driving member.
Patent KR-20040067478-A (KR)
Inventor: KIM JONG JAE
IPC: B60R1/04
Filed: 2003-01-23
Abstract: PURPOSE: A room mirror having a memo board for a vehicle is provided to enable other people to easily grasp a phone number written on a memo paper. CONSTITUTION: A room mirror for a vehicle is composed of a mirror case(10), a mirror(20), and a memo board(100). The memo board includes a memo-paper frame(30) inserted into the mirror case, an elastic spring(40) disposed between the mirror case and the memo-paper frame to push the memo-paper frame into the outside of the mirror case, and a release button(50). A holding groove(31) is formed at the memo-paper frame. A transparent window(33) is formed at one side of the memo-paper frame. The release button is coupled to the memo-paper frame so that the memo-paper frame is disposed in the mirror case.
Patent KR-20030093912-A (KR)
Title: 다층 배선 구조를 갖는 반도체 장치 및 그 제조 방법
IPC: H01L23/532
Filed: 2003-01-24
Abstract: 동일한 높이의 위치에 배치된 복수의 배선층(2)은 확산 방지 절연층(4)에 의해서 가로 방향으로 연결되어 있고, 다른 높이 위치에 배치된 배선층(2)끼리는 플러그부(2a)를 거쳐서 세로 방향으로 전기적으로 접속되어 있으며, 제 2 층간막(5)은 배선층(2)의 바로 아래 영역에만 배치되고, 또한 배선층(2)과 확산 방지 절연층(4)을 세로 방향으로 연결시키고 있으며, 복수의 배선층(2) 각각의 옆쪽에는 공중 공간(20) 또는 2.5 이하의 유전율을 갖는 저유전율 층간막(7)이 위치하고 있고, 이에 따라, 배선층의 강도 향상과 신호의 전달 속도 향상을 양립할 수 있는 다층 배선 구조를 갖는 반도체 장치 및 그 제조 방법이 얻어진다.
Patent KR-20040068841-A (KR)
Inventor: KO GI HONG
IPC: A47D9/02
Filed: 2003-01-28
Abstract: PURPOSE: An apparatus for controlling a back of a swing cradle is provided to use an upper cradle of the cradle assembly as the back of the cradle. CONSTITUTION: In the apparatus for controlling a back of a swing cradle, a cradle assembly, which includes an upper cradle(1) and a lower cradle(2) which are engaged by hinges(4), is placed on a plate(8). Hinge pins(31) are inserted to holes of a support(9) at both sides of the plate(8). A part of a lever(32) is inserted to a hole(38) which is a predetermined distance(M) away from the hinge pin(31). A separation pin, a washer and a spring are positioned adjacent to an incline plane(L) at the end of the lever(32). The incline plane is inserted to one of the holes(33), which are formed at an interval of 15 deg. along a circular arc of a radius(M), in a bracket(34).
Patent KR-20040069532-A (KR)
Inventor: KIM SANG CHEON
IPC: G11B7/1353
Filed: 2003-01-29
Abstract: PURPOSE: A fabrication method of a transmissive/reflective hologram element is provided to form concavo-convex portions in the same depth through one-time photolithography process, thereby simplifying a fabrication process and improving productivity. CONSTITUTION: Concavo-convex portions(102) of a transmissive hologram area and a reflective hologram area are formed in the same depth through a photolithography process on an upper side of a glass substrate(101)(a). A gap material(103) is applied to the upper side where the concavo-convex portions(102) are formed(b). A glass block(105) having reflective films(104) on edges thereof is attached to an upper side of the gap material(103), to complete a hologram element(c). The hologram element forms the transmissive hologram area in a middle portion, and the reflective hologram area on an outer side of the transmissive hologram area.
Patent KR-20040070483-A (KR)
Inventor: KIM UI SIK
IPC: H01L21/336
Filed: 2003-02-03
Abstract: PURPOSE: A method for forming a gate of a semiconductor device is provided to restrain damage due to hot carrier by preventing under-cut of a gate oxide layer. CONSTITUTION: A gate oxide layer(30) is formed on a semiconductor substrate(10). A polysilicon layer is formed on the gate oxide layer. A gate electrode(50a) is formed by etching the polysilicon layer and the gate oxide layer using a reaction gas containing oxygen. Reaction residue of the oxygen and the polysilicon is removed. A nitride spacer(110a) is then formed at both sidewalls of the gate oxide layer by plasma nitridation processing.
Patent KR-20040070410-A (KR)
Inventor: HA JONG MIN
IPC: F24F13/20
Filed: 2003-02-03
Abstract: PURPOSE: An outer case of an integrated air conditioner is provided to easily assemble the outer case and to secure good maintenance and repairability by dismantling an outdoor cover in repairing internal parts. CONSTITUTION: An outer case of an integrated air conditioner mounted to a base pan(100) dividing and installing components comprising indoor and outdoor parts to form a space for the outdoor part therein is composed of a cabinet and an outdoor cover(650). The cabinet has an insertion guide for surrounding a lower end of the base pan forming the bottom surface of the outdoor part and intake louver units(602) and a discharge grille unit(603) arranged at both sides and the rear surface to form both sides and a rear exterior shape of the outdoor part, respectively. The outdoor cover is placed on the upside of the cabinet and combined with the cabinet and the cover forms the outer shape of the upside of the outdoor part.
Patent KR-20040071346-A (KR)
Inventor: YOON CHANG JUN
IPC: H01L21/762
Filed: 2003-02-05
Abstract: PURPOSE: A method for forming an isolation layer of a semiconductor device is provided to prevent an abnormal operation caused by an electric field concentration phenomenon by rounding the top corner of a trench in a trench etching process and by embodying a rounding profile of the top corner. CONSTITUTION: After a hard mask is deposited on a semiconductor substrate(200) having a predetermined underlying structure, a photolithography is performed to pattern the hard mask. The first sidewall spacer of a round type is formed on the sidewall of the patterned hard mask. The first trench of the first depth is formed to make the rounding of the first sidewall spacer reflect on the silicon substrate. The second sidewall spacer is formed on the hard mask and the sidewall of the first trench. An etch process using the hard mask and the second sidewall spacer as a mask is performed to form the second trench of the second depth in the silicon substrate. A predetermined oxide process is performed on the inner surface of the second trench to generate a bird's beak on the interface of the first and second trenches and to round the interface.
Patent KR-20040071936-A (KR)
Inventor: JUNG SEON YONG
IPC: F25D23/00
Filed: 2003-02-07
Abstract: PURPOSE: Holders for fixing plastic bags and a refrigerator with the holders are provided to easily fix plastic bags including zipper bags each having a flat inlet part. CONSTITUTION: A holder(30) for fixing plastic bags has a first body(31) and a second body(41) each rotatably combined around a rotating shaft arranged along a longitudinal direction to make engaging periphery parts adjoin and separate to/from each other, and a fixing part(51) formed to one of the first body and the second body to fix the combined body of the first and second bodies to an object to which the combined body of the first and second bodies is fixed. The engaging periphery parts are formed in a line with the rotating shaft. An escape space(S) is formed in the first and second bodies to situate an opening of a plastic bag to be fixed to the rotating shaft side.
Patent KR-20040072393-A (KR)
Inventor: KIM MYEONG JIN
IPC: H01L21/316
Filed: 2003-02-12
Abstract: PURPOSE: A method for forming an insulating layer of a semiconductor device is provided to improve gap-filling property by improving reflow of the insulating layer. CONSTITUTION: Gate line patterns(14) spaced apart from each other are formed on a semiconductor substrate(10). A fluidity insulating layer(15) is deposited on the entire surface of the resultant structure. The fluidity insulating layer is filled between the gate line patterns by reflow using annealing. At this time, the annealing is performed at atmospheric pressure using a desired gas containing PH3 and BF2 gas.
Patent KR-20030017604-A (KR)
Inventor: CHO SEONG HO
IPC: G09B19/06
Filed: 2003-02-15
Abstract: PURPOSE: A device for learning a language using an Internet communication network and a personal computer is provided to display a voice signal on a display unit by comparing and analyzing the voice signal of each learner being inputted in a learning program supplied through a learning device and an Internet network. CONSTITUTION: A control distribution device(D) receives voice signals inputted from at least one microphone(M1,M2,M3, ..., Mn), receives each LCD diode(L1,L2,L3, ..., Ln), and receives a wire/wireless remote controller(R). A voice signal selected by connecting to the control distribution device(D) and connecting to the wire/wireless remote controller(R) is amplified and output to the left and right speakers(S1,S2) connected to an amplifier(A). A voice signal of a learner is connected to the learning device, and a voice output of the learning device is amplified and output to the left and right speakers(S1,S2). A real time learning program supplied through an Internet communication network is connected to a computer microphone input terminal(M) of a sound card, a signal received from a language learning device is compared with contents stored in a program, and the signal and the contents are output on a display device. A voice signal stored in the program is amplified and output to the left and right speakers(S1,S2) connected to a computer speaker output terminal(O) of the sound card.
Patent KR-20040075142-A (KR)
Inventor: YOON HYEOK CHUN
IPC: G01B5/25
Filed: 2003-02-20
Abstract: PURPOSE: A device for measuring the eccentric of differential gear of a vehicle and a method for measuring the eccentric are provided to accurately measure the eccentric of the differential gear of the vehicle by installing a vector measurement unit on a companion flange of the differential gear having a notch-mark ruler. CONSTITUTION: A device for measuring an eccentric of the differential gear of a vehicle includes a vector measurement unit(20) and a disc type notch-mark ruler. The vector measurement unit has a first shaft, a second shaft, a shaft interval adjusting rod, a connector, a vertical slider, and a horizontal slider. The disc type notch-mark ruler is installed on a companion flange of the differential gear. The disc type notch-mark ruler has notch-mark printed along a radius direction and has a transparent material.. The shaft includes a cylinder type ruler. The second shaft is rotatably fixed to an upper part of the first shaft. The shaft interval adjusting rod is coupled to a cylinder type roller of each shaft and adjusts intervals between shafts.
Patent KR-20040075598-A (KR)
Title: Switch device with net shaped insulator and method for producing the same
Inventor: KIM SUN SEOK
IPC: H01H13/00
Filed: 2003-02-22
Abstract: PURPOSE: A switch device and a method for producing the same are provided to allow the switch device to operate by the pressure applied from an external source and achieve improved sensitivity in a wide area. CONSTITUTION: A switch device comprises a net shaped insulator(120) having a predetermined thickness, and a plurality of penetrating grids; and an upper conductive plate(110) and a lower conductive plate(130) arranged on both side surfaces of the net shaped insulator and spaced apart from each other by the gap corresponding to the thickness of the net shaped insulator, wherein the upper and lower conductive plates electrically contact with each other through the penetrating grids in correspondence to the pressure applied from an external source. The switch device has a sensitivity controllable with respect to the pressure applied from an external source in correspondence to the thickness of the net shaped insulator and the area of the penetrating grids.
Patent KR-20040079136-A (KR)
Inventor: JANG SEOK GU
IPC: C12N15/70
Filed: 2003-03-06
Abstract: PURPOSE: An antigen and antigen preparation for the production of the antibody against human rotavirus, and the use thereof are provided, thereby mass-producing the antigen, and cheaply producing the antibody against human rotavirus having improved specificity from the egg yolk. CONSTITUTION: The antigen preparation for the production of the antibody against human rotavirus comprises the steps of: (a) RT-PCR amplifying the genomic RNA of human rotavirus as a template using a primer of SEQ ID NO:1 or SEQ ID NO:2 to selectively isolate a gene encoding VP8 antigen protein; (b) cloning the isolated gene into a vector, and transforming a microorganism with the vector to extract the DNA of the vector; (c) PCR amplifying the extracted vector DNA using primers of SEQ ID NO:3 and SEQ ID NO:4 to amplify the gene encoding the VP8 antigen protein; (d) cloning the amplified gene into an expression vector pET-29b and transforming Escherichia coli with the vector; and (e) culturing the transformed E. coli to over-express VP8 antigen protein and purifying the VP8 antigen protein by using the Ni+-NTA affinity column.
Patent KR-20040080682-A (KR)
Inventor: LEE CHANG WON
IPC: H04W8/20
Filed: 2003-03-13
Abstract: PURPOSE: A system and method for storing a file by using a P2P network are provided to allow a user to easily store a file and a sender and a receiver to transmits and receive a file even though they are not simultaneously connected. CONSTITUTION: A plurality of personal terminals(20) are connected with each other through a P2P network. A P2P network server(10) receives an IP address from each personal terminal(20) and provides the opposite IP address to each personal terminal that desires to be connected. A storage terminal(30) is connected to the personal terminals(20) through the P2P network server(10) and stores a file uploaded from the personal terminals(20).