baber/WOPTO huggingface dataset:
Patent KR-19990079801-A (KR)
Title: 생물폐수의 생화학적 산소요구량 측정 방법 및 이에 사용되는장치
IPC: G01N33/18
Filed: 1998-04-09
Abstract: 본 발명은 폐수에서 생화학적 산소요구량(BOD)을 연속측정하는 방법 및 이에 사용되는 장치에 관한 것으로, 미지 BOD 생물폐수 시료 및 상기 미지 BOD 시료와 기지 BOD 시료와의 혼합 시료를 각각 3가지 이상의 다른 희석비로 희석하여 6개 이상의 시료를 제조하고, 상기 시료들을 용존산소센서에 각각 접촉시켜 시간에 따른 용존산소량 변화를 측정하여 용존산소 변화량에 대한 BOD 값의 검량곡선을 얻고, 상기 미지 BOD 시료의 희석액의 시간에 따른 용존산소량 변화를 측정한 다음 상기 검량곡선을 이용하여 BOD 값을 얻는 것을 포함하는, 생물폐수의 BOD 측정방법 및 이에 사용되는 장치를 제공한다.  본 발명의 방법에 따르면 미생물을 별도로 배양하는 단계가 필요없고, 단시간으로 간편하게 정확한 BOD 값을 구할 수 있다.
Patent KR-19980081399-A (KR)
Title: 삽입장치를 위한 자기블록 조립품
IPC: H01F13/00
Filed: 1998-04-14
Abstract: Halbach형 또는 혼성형의 삽입장치를 위한 새로운 혼합 자기조립품을 예를 들어, 가속기에 삽입하여서, 두 개의 마주보도록 면하고 있는 혼합 자기블록 배열 사이의 공기 틈에 사인 곡선의 주기적인 자기장을 생성한다고 기재되어 있다. 다수의 연속 자기블록 또는 연속 자기블록 및 소프트 자기 폴단편 교대의 조립품으로 이루어진 종래의 자기블록과 다른, 본 발명의 자기블록 조립품은 삽입 자기단편 또는 삽입 폴단편이 삽입된 것으로 다수의 슬릿을 제공한 단일 기부 자기블록으로 각각 형성된 마주보도록 면하고 있는 다수의 혼합 자기블록으로 구성됨으로써, 길이방향 자기블록 조립품의 차원의 정확성이 크게 감소되어 주기적인 자기장의 규칙성을 향상시킬 수 있다. Halbach형 조립품의 삽입 자기단편 뿐 아니라 기부 자기블록을 펄스자기장의 적용으로 조립 후에 자화할 수 있다.
Patent KR-19990086474-A (KR)
Title: 휴대용 정보기기와 이를 위한 배터리 장착장치
Filed: 1998-05-28
Abstract: 본 발명은 휴대할 수 있게 소형으로 제작되고 배터리를 전원으로 사용하는 퍼스널컴퓨터 등의 휴대용 정보기기를 개시한다. 개시된 휴대용 정보기기는 본체의 부피가 증가되지 않고 다수의 포트를 기본장착할 수 있도록 그 배터리 장착구조가 고정장착형에서 회전장착형으로 개선된 것으로서, 본체(10)에 배터리장착부(11) 안쪽으로 노출되는 포트설치면(12)을 구비하고, 이 포트설치면(12)에 힌지부(18)로 회전가능하게 지지되는 배터리홀더(20)를 구비한다. 배터리홀더(20)에는 배터리팩(17)이 탈착가능하게 결합된다. 포트설치면(12)에는 외부 및 주변기기를 동시접속할 수 있는 통신용 포트(13)들이 설치되는데 이는 배터리홀더(20)의 회전에 따라 개폐되는 것이다. 이러한 회전장착형의 배터리장착구조를 가지는 소형 정보기기는 필요한 포들들을 기본장착할 수 있게 됨으로써 사용자의 편리와 함께 그 성능강화를 통한 제품의 효용가치를 높인다.
Patent KR-19990086573-A (KR)
Title: 운동용 계단 걷기식 뜀틀기.
IPC: A63B25/08
Filed: 1998-05-29
Abstract: 본 발명은 스라이드 베어링 로울러(9)(9')를 내설시킨 직경이 크고 작은 4각 유동실린더관체(6)(8)를 1개조로 하여 1개의 고정체(3)(3')(3")에 형성한 2개의 4각설치부(3b)(3b)에 통상의 압축코일스프링(7)을 탄설시킴과 더불어 각각 1개조(6)(8)(7)씩 2개조를 설치하여서 구성되는 "운동용 계단 걷기식 뜀틀기"에 관한것으로서, 계단걷기 운동으로 다리의 근육단련을 강화시키고 또한 체중을 균등하게 양발판(8a)을 밟고 상하유동운동(뜀뛰기운동)으로 정직된 체내의 각부위의 피로를 즐기면서 해소시켜 줄뿐아니라 기체판에 설치시킨 시어리즈베어링(2)에 의하여 트위스트 운동으로 척추의 유연성 및 강화시켜주는등 다목적 체력단련의 효과를 제공하는 특징을 가진 운동용 계단 걷기식 뜀틀기 이다.
Patent KR-19980043123-A (KR)
Title: 동력전달용 와이어
Filed: 1998-05-29
Abstract: 본 발명은 구동 및 피동풀리에 폐루프로 구성된 와이어를 걸어 사용할 때, 풀리와 와이어의 사이에서 슬립이 발생되는 것을 방지할 수 있도록 된 새로운 구조의 동력전달용 와이어에 관한 것이다. 
     본 발명에 따르면, 와이어(20)를 폐루프로 구성하여 구동 및 피동풀리(24,26)에 걸어 동력을 전달할 수 있도록 된 동력전달용 와이어에 있어서, 상기 와이어(20)에는 상기 풀리(24,26)의 외주면에 소정간격으로 일정하게 형성된 걸림홈(28)에 삽입되어 와이어(20)의 슬립을 방지하는 걸림돌부(22)가 상기 걸림홈(28)과 대응되도록 일정간격으로 형성된 것을 특징을 하는 동력전달용 와이어가 제공된다.
Patent KR-19990086592-A (KR)
Title: 자동차용 엔진의 고정구조
Filed: 1998-05-29
Abstract: 본 발명은 자동차용 엔진의 고정구조에 관한 것으로, 본 발명은 종래에 엔진의 무게와 티.알.에이(T.R.A TORQUE ROLL AXIS) 축에 대한 회전력을 제어하기 위한 고정점이 엔진의 일측과 변속기의 일측, 그리고 엔진의 배면에만 설치됨으로써 엔진의 무게나 회전력을 효과적으로 제어하지 못하여 엔진의 유동에 의한 부품간의 간섭이 발생하였던 문제점을 해소하기 위한 것이다. 
     본 발명은 엔진블럭(1)의 전면 하부에 형성된 고정수단(10)과, 상기 고정수단(10)에 결합되는 완충수단(20)과, 상기 완충수단(20)의 하부가 안착되는 만곡요홈(32)과 체결공(34)과, 단턱부(36)가 형성된 설치수단(30)과, 상기 설치수단(30)의 만곡요홈(32)에 안착되는 완충수단(20)을 고정하도록 완충수단(20)의 상부에 결합되어 양단이 설치수단(30)에 고정되는 고정부재(40)로 구성되는 것으로, 본 발명에 의하면 엔진블럭(1)의 고정수단(10)에 완충수단(20)을 고정하고 이 완충수단(20)의 외주면은 설치수단(30)에 고정하며 상기 설치수단(30)은 크로스멤버에 견고하게 고정하여 엔진의 무게와 회전력을 지지하는 고정점을 추가함으로써, 엔진의 무게를 분할시켜 보다 안정되게 지지할 수 있고, 보다 큰 티.알.에이 축에 대한 엔진의 회전력을 제어하여 엔진의 시동이나 정지시 또는 급가속시에 발생하는 엔진의 유동을 최소화할 수 있는 유용한 발명이다.
Patent KR-20000001309-A (KR)
Title: Device to convert ks5601 to font memory address and method
Inventor: JU DAE HYUN
IPC: G06F3/03
Filed: 1998-06-10
Abstract: PURPOSE: A device and a method to convert a KS5601 to a fond memory address are provided to be able to display the Hangul without a separate device. CONSTITUTION: The conversion device comprises: a control unit to output a KS5601 code as a serial data through a communication by inputting through an input port, and by converting by corresponding to an inner font address of a LCD driving unit; a LCD module to display the inner fond corresponding to the inner font address by inputting the inner font address outputted from a database of the control unit.
Patent KR-20000002923-A (KR)
Title: Vertebra correction device
Inventor: LEE JUNG HWA
IPC: G11C7/00
Filed: 1998-06-24
Abstract: PURPOSE: A semiconductor memory device is provided to increase the real time of write/read of a data. CONSTITUTION: The semiconductor memory device comprises: a data input buffer(DIN buffer.51) to output the buffered data(DINI) by buffering an input data(DIN); a data input/output driver(IO Driver. 52) to output the buffered data(DINI) to a data input/output bus(IO) and a complementary input/output bus(IOB); an equalizing unit(53) to equalize the data input/output bus(IO) and the complementary input/output bus(IOB); a core unit(54) to write the data in the data input/output bus(IO) and the complementary input/output bus(IOB) into a memory cell conformed to a column address(CA).
Patent KR-20000003684-A (KR)
Title: Method of changing a channel of a television set
Inventor: KIM KWANG CHEOL
IPC: H04N5/44
Filed: 1998-06-29
Abstract: PURPOSE: A method of changing a channel of a television set is provided to automatically change a channel on which a broadcast signal does not provided. CONSTITUTION: The method comprises steps of: detecting a synchronization signal of a broadcasting signal on a selected channel(s203); and changing the channel, on which the synchronization signal does not detected, to another channel on which the synchronization signal is provided(s206). In case that, the synchronization signal does not detected at this changed channel, the channel is automatically changed to another channel wherein the broadcast signal is provided. Thereby, it is possible to enable a user to watch a television program without changing the channel in case that the broadcasting program does not provided.
Patent KR-20000003709-A (KR)
Title: Wireless hands free system for cellular phone
Inventor: CHOI KI SEOK
IPC: H04B1/38
Filed: 1998-06-29
Abstract: PURPOSE: A wireless hands free system for a cellular phone is provided to enable a transceiver of a cellular phone and a transceiver of a user to transmits/receives with each other by using a radio frequency signal. CONSTITUTION: A wireless hands free system includes a transceiver(100) of a cellular phone(10) which is provided with a plug(101) inserted into a mike/earphone jack(11) or another plug(158) inserted into a data communication terminal(12). The transceiver(100) transmits/receives an audio signal to/from the cellular phone by wireless. The wireless hands free system further includes a transceiver(200) for a user. The transceiver(200) receives an audio signal from the transceiver(100) of the cellular phone by wireless and transmits to the user. Also, the transceiver(200) transmits an audio signal of the user to the transceiver(100) of the cellular phone. Since a conventional wire is removed, the use of a cellular phone becomes convenient and the user's behavior becomes free.
Patent KR-20000003891-A (KR)
Title: Thin film actuated mirror array and method for manufacturing thereof
Inventor: SONG YONG JIN
IPC: G02F1/015
Filed: 1998-06-29
Abstract: PURPOSE: A thin film actuated mirror array in an optical projection system is provided to minimize an occurrence of a point defect and a line defect in a pixel by forming a common electrode connections on a first and second upper electrode and connecting therebetween. CONSTITUTION: The thin film actuated mirrors array comprising an active matrix (101) including a first metal layer (135), which a MOS transistor (120) is built-in and a drain pad extending from a drain (105) of the transistor; a supporter (175) formed on the active matrix (101), and includes a support layer (170) having a angular shape, and a first anchor (171) and a second anchors (172a, 172b) formed integral with the support layer (170) for supporting it; a lower electrode including a first and second lower electrode portions (171, 181) formed onto the support layer (170), a lower electrode connections (181) integral with those, and a first and a second lower electrode protrusions (180a, 181a) protruding from those; a via contact (290) for connecting between the first and a second lower electrode protrusions (180a, 181a) and the drain pad of the first metal layer (135); a first and a second deformable layer (190, 191) formed on the first and the second lower electrode portions (180, 181); a first and a second upper electrode (200, 201) formed on the first and the second deformable layer (190, 191); a common electrode line (205) formed vertically to those and on the first and the second upper electrode (200, 201) and, in which a lower portion of the common electrode line is connected the first and the second upper electrode (200, 201); and a mirror (260) formed onto the common electrode line (205).
Patent KR-20000007596-A (KR)
Title: Light pick-up device
Inventor: JUNG SUNG YUN
IPC: G11B7/08
Filed: 1998-07-04
Abstract: PURPOSE: A light pick-up device is provided to eliminate a crosstalk component by adjusting a sub-beam location according to a track pitch of a beam disc. CONSTITUTION: The light pick-up device generates a sub-beam for eliminating a crosstalk component using a polarized light phase plate(34). The polarized light phase plate(34) has phase strips which have different phases from each other on the basis of a center of the polarized light phase plate(34). A location of the sub-beam is determined by a width of each phase strip which is disposed at the central position of he polarized light phase plate(34). The phase strip has a phase differential of 180 degree with an adjacent phase strip.
Patent KR-20000008304-A (KR)
Title: Soft switch single-phase active rectifier having power factor cotrol function
Inventor: JUNG YONG CHAE
IPC: H02M7/155
Filed: 1998-07-11
Abstract: PURPOSE: The active rectifier minimizes the switching loss of a switch and a diode by soft switching whenever switching. CONSTITUTION: The active rectifier reduces the loss due to the reverse recovery characteristics of the diode in switching by supplying a switching control signal which enables the switching in the condition of zero voltage or zero current to minimize the switching loss of the switch and the diode. The active rectifier comprises: an inductor(L) suppressing the high frequency current in the inputted common-used power source; a single-phase active rectification part(100) rectifying the common-used power source by the switching operation after improving the power factor; a soft switching part(200) reducing the loss by performing the soft switching to improve the power factor of the single-phase rectification part; a filtering capacitor to filter the voltage outputted from the soft switching part; an input current detection part(300) detecting the current of the common-used power source inputted by a current detection device(CT); an input voltage detection part(400, 500) detecting the output voltage generated in load operation; and a power factor control part(600) controlling switches of the single-phase active rectification part and the soft switching part.
Patent KR-20000008562-A (KR)
Title: Drive motor cooling structure of turbo compressor
Inventor: RYU HO SUN
IPC: F04D29/58
Filed: 1998-07-14
Abstract: PURPOSE: A drive motor cooling structure is provided to improve the performance of a drive motor and to decrease the weight by using the inner space of a fixed disc as a passage. CONSTITUTION: A drive motor cooling structure comprises:a first and a second compression chambers(3,5) installed on both inner sides of a airtight container(1); a drive shaft(8) combined to the drive motor and rotating by receiving the drive power; and a second impeller(11) to vent the gas flowerd into the second compression chamber(5) to an outlet(4).
Patent KR-20000009807-A (KR)
Title: Graphic data processing method of computer system
Inventor: OH SEONG CHAN
IPC: G06F3/14
Filed: 1998-07-28
Abstract: PURPOSE: A graphic data processing method of computer system is provided to reduce quantity of transmission data and to improve performance of system using compression of texture data. CONSTITUTION: The graphic data processing method comprises steps of: transmitting a texture image data in memory to graphic processor; decompressing compression of the texture image data; magnifying texture image data as N time for up scaling therein the texture image data is compressed image data with minimum size.
Patent KR-20000013457-A (KR)
Title: Production method of optical recording media
Inventor: KANG HWA SEOK
IPC: G11B7/26
Filed: 1998-08-08
Abstract: PURPOSE: A production method of optical recording media is provided to improve an yield of production and remove a process of injection molding. CONSTITUTION: The production method of optical recording media comprises the steps of forming a film of cover layer; and connecting the film of cover to a board. The film of cover layer is more thin than the board and lower than 0.5 mm. The board is injected and molded under 0.6 mm. In the second step, the film of cover layer is fixed and the board is moved on the film of cover layer and comprises the steps of forming a reflection layer; spreading an adhesive on the reflection layer; joining the film of cover layer and the board; cutting a joined cover layer and the board, wherein the board has a recordable side.
Patent KR-19990029404-A (KR)
Title: 진공펌프 작동방법
IPC: F04B37/16
Filed: 1998-09-01
Abstract: 반도체 제조장치에 사용하기 위한 배기시스템에 사용되는 진공펌프는 정상 회전속도로 작동되어 반도체 제조장치를 배기시킨다.  다음으로, 반도체 제조장치의 작동상태가 배기될 필요가 없다는 것을 나타내는 신호에 응답하여, 진공펌프의 회전속도가 공회전 속도로 감소됨으로써, 진공펌프에 의한 전기에너지 소비를 감소시킨다.
Patent KR-20000018596-A (KR)
Title: External notification method in a private exchanger in which a voice main machine is embedded
Inventor: KIM WOO MAN
IPC: H04M3/42
Filed: 1998-09-03
Abstract: PURPOSE: An external notification method is provided to make a voice mail machine to recognize a tone signal exactly through a message by transferring the tone signal to the voice mail machine by a message format. CONSTITUTION: The external notification method in a private exchanger comprises the steps of: transferring a sending telephone number set by a subscriber to the private exchanger when a voice message is received into a mail box of a voice main machine through the private exchanger; performing a dialing by the sending telephone number to check whether the sending number is an idle state; after sending a ring signal when the sending number is the idle state, waiting a response from the sending telephone; informing a reception of the response from the sending telephone to the voice mail machine by a message format when the response of the message is received; and recognizing the response of the sending telephone when receiving the message and sending by a voice a guidance message informing that the message from the sending telephone is received.
Patent KR-19990071391-A (KR)
Title: 반도체 장치 및 그 제조 방법
IPC: H01L23/522
Filed: 1998-09-12
Abstract: 종래에는, 셀간 배선층 등이 길어져서, 동작 속도의 지연이 발생한다고 하는 과제가 있었다. 
     쉴드 배선층(8)을, 기능 셀(3)이 형성되어 있는 영역의 전면을 덮도록, 제 3 절연막(6c)상에 배치한다.  그리고, 쉴드 배선층(8)을, 기능 셀(3)이 형성되어 있는 영역 이외의 영역에서 전원 배선층이나 접지 배선층 등의 일정한 전위의 배선층에 제 2 스루 홀(10)을 거쳐 접속한다.
Patent KR-20000019727-A (KR)
Title: Apparatus and method for analyzing and estimating capacity of cdma radio communication system
Inventor: KANG CHANG SUN
IPC: H04W24/10
Filed: 1998-09-15
Abstract: PURPOSE: An apparatus and a method for analyzing and estimating a capacity of a CDMA communication system are provided to analyze a data related to a radio link capacity and an accurate result by using a stored data CONSTITUTION: An apparatus for analyzing and estimating a capacity of a CDMA communication system comprises a data collection and detection unit(21), a capacity analyzer(22), and an output unit(23). The data collection and detection unit collects, detects, and stores a data related to a radio link. The capacity analyzer analyzes the stored data. The output unit outputs a specifically analyzed data. A method for analyzing and estimating a capacity of a CDMA communication system comprises the steps of: detecting a frame identification code and storing a valid data frame; analyzing the valid data frame and displaying the analyzed data frame; and estimating the valid data frame and displaying the estimated data frame.
Patent KR-20000020174-A (KR)
Title: Phase error compensation device of channel modem for satellite communication system
Inventor: LEE JONG BIN
IPC: H04L7/02
Filed: 1998-09-18
Abstract: PURPOSE: A device is provided to reduce an error rate of data due to a phase error by performing an exact demodulation of information data by estimating and compensating a phase error of inputted data during demodulating data. CONSTITUTION: An error data detection part(51) detects an error component occurring through a satellite from I, Q demodulation data, a phase error data extraction part(52) extracts phase error data from the detected error data, data multiplication parts(53, 56) multiplies the extracted phase error data by a phase error estimation coefficient, a data synthesis part(54) synthesizes the multiplied data and data delayed thereafter, and a limiter(55) outputs data in a predetermined range from the synthesized data, to thereby reduce an error rate of data due to a phase error even though phase data is changed.
Patent KR-20000020357-A (KR)
Title: Method for processing originating signal and terminating signal for multimedia call processing in mobile communication system
Inventor: CHO DONG HO
IPC: H04L29/06
Filed: 1998-09-21
Abstract: PURPOSE: A method for processing the originating/terminating signals performs a multiple code allocation and service ability negotiation for applying a multimedia, and processes a multimedia call. CONSTITUTION: In a method for processing the originating/terminating signals, a base station of the originating part receives an originating message, and transmits a channel allocation message and a communication channel data. A mobile station of the originating part receives a channel allocation message and a null communication channel data, and transmits an inverse pilot signal. The base station of the originating part receives the inverse pilot signal, transmits a base station confirmation command, A mobile station of the originating part receives a base station confirmation command, and transmits a mobile station confirmation command and a communication channel data to the base station of the originating part. The mobile station of the originating part transmits a service requirement message, performs a service ability negotiation, and performs a multimedia call communication.
Patent KR-20000021449-A (KR)
Title: Variable speaker device of television
Inventor: JEONG JAE YOUNG
IPC: H04N5/64
Filed: 1998-09-29
Abstract: PURPOSE: A variable speaker device of a television is provided to equip easily a wave guide without changing a cabinet design by diving a wave guide into multiple levels. CONSTITUTION: A variable speaker device of a television comprises a wave guide(1), an additional wave guide(2), and an induction tube(3). A contact plate(5) is installed on an inner circumference of an open side of the wave guide. A fixed projection(6) is formed at an upper and a lower side of an outer circumference of the contact plate. An insertion portion(13) is formed to insert the contact plate. An elastic section(7) is formed at one end of the additional wave guide. A contact plate (5-1) is installed on the other end portion of the additional wave guide. A fixed projection(6-1) is formed on an inner side of the contact plate. The induction tube comprises a fixed wing(9) and a variable wing(11).
Patent KR-19990036719-A (KR)
Title: 자기저항 효과형 헤드
IPC: G11B5/39
Filed: 1998-09-30
Abstract: 스핀 밸브식 자기저항 효과형 헤드는 핀 강자성층, 비자기 중간층 및 자유 강자성층을 포함한다.  또한, 헤드는 자유 강자성층의 자화를 제어하기 위해 바이어스 제어용 강자성층을 포함한다.  바이어스 제어층은 B, Rh 및 Zr의 군에서 선택된 적어도 하나를 추가하여 NiFe, CoFe 및 FeN의 군에서 선택된 재료로 형성된다.
Patent KR-20000024728-A (KR)
Title: Device for cleaning roller of electrophotographic type printer
Inventor: KIM KYEONG HWAN
IPC: G03G15/11
Filed: 1998-10-01
Abstract: PURPOSE: A device for cleaning a roller of an electro photographic printer is provided to remove a film of developing liquid by cleaning the outer circumference of a roller such as a roller or a drying roller. CONSTITUTION: A photosensitive belt(100) as a photosensitive medium is circulated in tracks arranged each in a developing unit(200), a drying unit(300), and a transferring unit(400). An image is developed into the photosensitive belt(100) with a certain developing liquid in the developing unit(200), and the image developed in the photosensitive belt(100) is dried with a drying roller(310) and a heating roller(320) in the drying unit(300). A dressing roller(500) rotated by a driving motor(510) is stuck in the outer circumference of the transcribing roller(410). The dressing roller is formed by a foaming rubber mixed with a 10-40wt% powder of grinding stone. The dressing roller(500) is rotated at a different speed with the transferring roller(410). Therefore, the friction is generated by forming a relative speed between two rollers(410)(500) and the dressing roller(500) scratches by grinding the outer circumference of the transcribing roller(410).
Patent KR-20000024762-A (KR)
Title: Method for setting height of checking facility of semiconductor device facility
Inventor: LEE JONG HOON
IPC: H01L21/66
Filed: 1998-10-01
Abstract: PURPOSE: A method for setting the height of a checking facility of a semiconductor device is provided to set up a checking facility of a semiconductor device accurately and to reduce the leveling time and accomplishes the level standardization by facilities, by proceeding an accurate leveling when checking height by each part of the facility. CONSTITUTION: A height of each part of a checking facility is set up according to a block gauge(10) by fabricating the block gauge whose height is increased step by step, in order to set the height for each part of the facility. By the method, the accurate maintenance and checking of the apparatus is enabled and the repairing time is also reduced. Thus, the trouble of the apparatus is prevented by standardizing the individual height setting methods.
Patent KR-20000031964-A (KR)
Title: Method for calculating iso-surface for visualization of physical quantity in inside of three-dimensional body
Inventor: LEE YONG JIN
IPC: G06T17/20
Filed: 1998-11-11
Abstract: PURPOSE: Provided is a method for calculating iso-surface for visualization of physical quantity in an inside of three-dimensional body, which presents the change of physical quantity in the inside of three-dimensional body by visualizing the change using the iso-surface. CONSTITUTION: A finite element analysis using three-dimensional element is performed and the analyzed result is visualized, in which each iso-interface is arranged by determining a number of iso-surface arbitrarily determined for displaying physical quantity distribution in an inside of the three-dimensional element and a physical quantity value at all points on each iso-surface. The three-dimensional element passing through the arranged iso-surface is divided into a basic tetrahedron. The divided basic tetrahedron is cut by an iso-surface. If coordinates of the cut section on an edge of the cut basic tetrahedron are determined, the cut points are connected to form a surface in the shape of polygon.