baber/WOPTO huggingface dataset:
Patent KR-19990063093-A (KR)
Title: 전자파일럿식 3위치 전환밸브
IPC: F15B11/12
Filed: 1998-12-16
Abstract: 3위치 전환밸브에 있어서, 스풀을 파일럿 유체에 의한 작용력으로 중립위치로 유지시킴으로써, 상기한 스풀을 복귀스프링의 반력의 영향을 받지 않고 전환할 수 있도록 한다. 스풀(6)이 수용된 밸브구멍(5)의 양단에, 상기한 스풀(6)을 구동하기 위한 파일럿 유체가 공급 또는 배출되는 큰 지름의 구동실(10a, 10b)과, 파일럿 유체가 상시로 도입되는 작은 지름의 피스톤실(12a, 12b)을 인접해서 설치하고, 상기한 피스톤실(12a, 12b)내부에 수용된 피스톤(13a, 13b)과 상기한 스풀(6)과의 사이에 연계부재(連係部材)(14a, 14b)를 설치함과 아울러, 상기한 연계부재(14a, 14b)와 피스톤(13a, 13b) 사이에 가하는 힘이 작은 복귀스프링(18)을 설치하고, 상기한 피스톤(13a, 13b)에 의해 연계부재(14a, 14b)를 매개로 해서 스풀(6)을 중립위치로 유지한다.
Patent KR-20000044521-A (KR)
Title: Method for outputting ring signal in transmission system
Inventor: CHO YONG JIN
IPC: H04M3/02
Filed: 1998-12-30
Abstract: PURPOSE: A method for outputting a ring signal in a transmission system is provided to discriminate subscribers and kinds of incoming calls, that is, call originators, by changing only definition of a ring signal within an extent of ring source utilized in a switching system or a transmission system. CONSTITUTION: A method for outputting a ring signal in a transmission system, connected to many subscribers, comprises the steps as follows. A flag is checked in order to discriminate receiving persons of incoming calls in call incoming to the system. Ring signals of a first/second/third/fourth subscribers are outputted, when the checked flag corresponds to the first/second/third/fourth subscribers. The ring signal of the first subscriber repeats the process of supplying a ring signal for 1 second and suspending for 2 seconds, and supplying a ring signal for 1 second and suspending for 2 seconds. The ring signal of the second subscriber repeats the process of supplying a ring signal for 0.25 second and suspending for 0.25 second, and supplying a ring signal for 1 second and suspending for 0.25 second. The ring signal of the third subscriber repeats the process of supplying a ring signal for 0.5 second and suspending for 1 second, and supplying a ring signal for 1.25 seconds and suspending for 0.25 seconds. The ring signal of the fourth subscriber repeats the process of supplying a ring signal for 0.75 second and suspending for 0.75 seconds, and supplying a ring signal for 0.75 second and suspending for 0.75 seconds.
Patent KR-20000044618-A (KR)
Title: Plasma display panel
Inventor: KIM TAE HYUNG
IPC: H01J11/24
Filed: 1998-12-30
Abstract: PURPOSE: A plasma display panel is provided to prevent error discharge occurred in the division point between upper and lower blocks of the panel and simplify the fabrication process by alternately disposing data electrodes corresponding the two blocks and preventing/assuring cross talk/insulation between the data electrodes. CONSTITUTION: A plasma display panel comprises first and second blocks consisted by dividing plural sustain/select electrodes. The data electrodes of the first and second blocks are alternately arranged each other. The sustain/select electrodes consist of X/Y electrodes disposed to be crossed to data electrodes disposed between barrier ribs.
Patent KR-19990035980-A (KR)
Title: 프로그램가능한 제어 파라미터를 갖는 메모리 시스템
IPC: G11C16/02
Filed: 1996-07-17
Abstract: 비휘발성 데이터 저장 유닛(12A)에 저장된 제어 파라미터를 사용하여 제조 후에 최적한 성능을 하도록 구성될 수 있는 메모리 시스템(10)이 개시되어 있다.  상기 시스템은 상기 데이터 저장 유닛(12A)으로부터 분리되어 다수의 행과 열로 구성되는 메모리 셀 어레이(12)를 포함하는데, 각 셀은 공통 워드 라인에 결합되는 행들 중의 한 행에 위치되고, 각 셀은 공통 비트 라인에 결합되는 열들 중의 한 열에 위치된다.  제어 회로(19)는 메모리 시스템이 정상 동작 모드에 있을 때 메모리 셀의 프로그래밍 동작 및 메모리 셀의 판독 동작과 같은 메모리 동작을 제어한다.  상기 비휘발성 데이터 저장 유닛(12A)은 메모리 동작을 제어하기 위해 제어 수단에 의해 사용된 제어 파라미터 데이터를 저장하고, 메모리 시스템이 정상 동작 모드와 반대인 대체 동작 모드에 배치될 때 수정될 수 있다.  일단 메모리가 제조되어 특성화되면, 제어 파라미터는 최적한 메모리 성능을 위해 선택되어 데이터 저장 유닛 내로 로드될 수 있다.
Patent KR-19990044587-A (KR)
Title: 분쇄된 미립 물질의 현탁액을 제조하는 방법
IPC: C09K23/36
Filed: 1996-09-12
Abstract: 본 발명은 미립 물질의 수성 현탁액이 통과되어 각각의 일련의 분쇄 단계에서 분쇄시킴으로써 처리되는 다중 단계 분쇄 방법에 의해 미세하게 분쇄된 농축된 미립 물질의 수성 현탁액을 제조하는 방법에 관한 것이다.  여기에서, 미립 물질에 대한 수용성 폴리카르복실레이트 분산제는 각각의 다수 분산제 첨가 자리 또는 단계에서 수성 현탁액에 첨가된다.  본 발명은 한 단계 이상의 분쇄 단계에서 분쇄시킴으로써 처리되는 경우에 수성 현탁액의 pH가 8.5 내지 9.8임을 특징으로 한다.  상기된 방법을 이용하여, 시간이 지남에 따라 유동학적으로 안정하며 비교적 높은 중량 비율의 미립 안료를 함유하는 현탁액을 제조할 수 있다.
Patent KR-19990082403-A (KR)
IPC: C07K14/575
Filed: 1997-01-29
Abstract: This invention relates to a novel process for the synthesis of vasoactive intestinal peptide analog Ac(1-31)-NH2 from four protected peptide fragments.
Patent KR-20000065189-A (KR)
IPC: A61F2/50
Filed: 1998-03-04
Abstract: Disclosed is a damping device for a leg prosthesis, comprising a tubular casing consisting of an outer sleeve (5) with a bottom (7) on one end and another open end, and an inner sleeve (6) which can slide backwards and forwards in an axial direction. A pressure spring (12) is arranged on the inside between both sleeves. Both sleeves can move between an expanded position and a retracted position. The pressure spring (12) is chosen in such a way that it exhibits a pre-determined initial tension even in an expanded position.
Patent KR-20000015793-A (KR)
Title: Immunopotentiators
Inventor: YAGI EIICHIRO
IPC: A61K38/06
Filed: 1998-03-16
Abstract: PURPOSE: An improving and preventing agent for the depression of a skin immune function is provided to prevent the lowering of skin immune function caused by an ultraviolet ray by an external use. CONSTITUTION: Skin immunopotentiators containing glutathione or a scutellaria root extract for preventing skin immune depression caused by ultraviolet light or drugs for ameliorating or preventing skin immune depression caused by ultraviolet light; and immunopotentiators or drugs containing an extract of Tiliaceae, cloves, Geranium thunbergii or rosemary for ameliorating or preventing immune depression. These drugs can prevent skin immune depression caused by ultraviolet light.
Patent KR-19990067797-A (KR)
Title: 브레이크 시스템
Filed: 1999-01-08
Abstract: 브레이크 배력장치의 작동 시 반력을 발생시키는 유압식반력기구(37)는 밸브본체(3) 내에 미끄럼 자유롭게 배치된 입력측부재(38)와, 상기 입력측부재(38)의 리어측에 제2 정압쳄버(39)가 형성되어 정압쳄버(A)로부터 압력이 도입되는 제2 정압쳄버(39)와, 상기 입력측부재의 프론트측에 형성되어 변압쳄버(B)로부터 압력이 도입되는 제2 정압쳄버(40)로 이루어진다. 유압식반력기구(37)로부터의 반력은 브레이크의 급속 작동시 반력감쇠수단으로서의 오리피스 통로(43)에 의해 감소되도록 이루어져 있다.
Patent KR-20000055804-A (KR)
Inventor: KANG HO SUL
IPC: A23B7/10
Filed: 1999-02-10
Abstract: PURPOSE: A Kimchi-specific refrigerator is to prevent inward vibration or moving of the refrigerator body by the drawer type door. CONSTITUTION: A Kimchi-specific refrigerator comprises: a body having at least one chamber; a drawer type door formed in the chamber; a Kimchi storage provided inside the door and drawn with the door, and a weight connected to the door for imposing a weight in the opposite direction to the operation of the drawer. The door is supported by door rails provided on both sides thereof and guide rails provided on both sides of the chamber. The weight is connected to the door rails via a connection line and moves upwardly by the drawing of the door. The weight is configured to move upwardly by the drawing of the door just before the door is drawn to the maximum.
Patent KR-20000056301-A (KR)
Inventor: SHIN JEONG SUN
IPC: H01M4/1393
Filed: 1999-02-19
Abstract: PURPOSE: An anode of a secondary lithium battery is provided to reduce the local inflation of the anode by improving the uneven state of the electrolyte distribution of a secondary lithium battery. CONSTITUTION: A metal oxide layer, which has an excellent electrolyte absorbing function, is formed on an anode active surface. According to another preferred embodiment of the present invention, metal oxide powder, which has an excellent electrolyte absorbing function is added to an anode active material. The metal oxide material is one selected from or a combination of a magnesium oxide(MgO), an aluminum oxide(Al2O3), a barium oxide(BaO), and a zinc oxide(ZnO). According to the anode of a secondary lithium battery, the local inflation of the anode is reduced by improving the uneven state of the electrolyte distribution of a secondary lithium battery.
Patent KR-19990068301-A (KR)
Title: 투표및온라인자동집표시스템
Filed: 1999-03-15
Abstract: 본 발명은 투표 및 개표에 관한 발명으로 특히 개표 시 소요되는 금전과 시간, 개표 시 동원되는 인원(개표를 감시하기 위해 각 당으로부터 파견되는 인원 및 참관인 포함)과 장비, 각 방송사마다 완벽을 추구하려는 개표방송 프로그램 개발에 소요되는 개발비, 각 방송사의 개표 방송에 동원되는 인력과 장비, 개표방송을 밤새워 지켜보는 수많은 유권자들의 인력 소모로 인한 경제적 손실 또 21세기 정보화시대에 뒤떨어진 재래식 투표 및 개표방법을 개선함으로서 재래식 개표 시 동원되는 모든 인력, 장비, 금전과 시간을 유용한곳에 재투자한다면 좀더 효율적이지 않을까 하여 만들어진 발명이다.
Patent KR-19990083050-A (KR)
Title: 표시장치용 어레이 기판 및 그 제조방법
IPC: G02F1/1362
Filed: 1999-04-08
Abstract: 신호선과 주사선의 교차부에 있어서, 신호선의 단선을 방지할 수 있어 고수율을 실현할 수 있는 표시장치용 어레이 기판 및 그 제조방법을 제공하는 것을 목적으로 한다. 
     신호선과 주사선 교차부의 주사선의 끝에 있어서, 신호선의 층 도전층인 상층의 Al의 선폭을 하층의 ITO층의 선폭 보다도 크게하여 하층의 ITO층을 덮도록 함으로써, ITO가 단절해도 Al의 에칭액이 스며들지 않도록 하여 신호선의 단선불량을 해소할 수 있다.
Patent KR-20000065832-A (KR)
Inventor: KIM WON
IPC: G01D21/00
Filed: 1999-04-09
Abstract: PURPOSE: A self-inspection device within a sensing apparatus is provided to diagnose the trouble of a sensor or sensor cables at a long distance, thereby operating measurement without danger and reducing the costs. CONSTITUTION: A sensing apparatus formed with a sensor, a measuring system(12) controlling the sensor, and sensor cables(4) connecting the sensor and the measuring system, wherein a self-inspection device within the sensing apparatus includes an automatic switch of the sensor located at the sensor cables and selecting a path connected with the sensor by the measuring system or the other path not connected with the sensor, a constant current source(9) supplying constant current, a measuring element measuring the current value and the voltage value after the constant current passes through the sensor and the sensor cables for transmitting to the measuring system, and an automatic switch located at the sensor cables and selecting a path connected with the constant current source and the measuring element by the measuring system, or the other path directly connected with the measuring system.
Patent KR-19990046691-A (KR)
Title: 낚시줄걸이부를구비한낚시대마개
Filed: 1999-04-12
Abstract: 본 발명은 낚시줄 걸이부를 구비한 낚시대(민장대 또는 민물대) 마개에 관한 것으로서, 더욱 상세하게는 낚시대의 말단에 위치하며 낚시대를 사용하지 않을 경우에 초리대와 가이드대를 삽입시켜둔 상태로 선단부와 말단부에는 마개를 막아두는 손잡이대의 전,후방 단부에 삽입되는 각각의 마개에 낚시줄 걸이홈을 각각 형성함으로서, 전,후방에 형성되어 있는 각각의 낚시줄 걸이홈을 이용하여 길이가 매우 긴 낚시줄을 간편하게 감아둘 수 있도록 하기 위한 것이다. 
     이를 위하여 본 발명은, 낚시대의 손잡이대(1) 선단부에 고무재로 형성된 전방마개(8)가 압입식으로 삽탈자유롭게 삽입되고, 말단부에는 나사부를 구비한 후방마개(9)가 나사식으로 결합되며, 손잡이대(1)의 외주 소정위치에는 낚시바늘(7)을 걸어두는 고무링(6)이 위치 이동 가능하게 외삽된 것에 있어서, 
     상기 전방마개(8)의 단부와 후방마개(9)의 단부에는 낚시줄(5)을 감을 수 있는 낚시줄 걸이홈(10)이 각각 형성되어 손잡이대(1)의 내측에 삽입되어 있는 초리대의 선단부에 연결된 낚시줄(5)을 전,후방마개(8),(9)에 형성되어 있는 각각의 낚시줄 걸이홈(10)에 감아둘 수 있도록 된 것을 특징으로 한다.
Patent KR-19990083312-A (KR)
Title: 전사장치
IPC: G03F7/23
Filed: 1999-04-19
Abstract: 본 발명은 전사투영장치 및 보정소자에 관한 것으로, 전사투영장치는 마스크(13) 상으로 방사선을 투영하는 수단을 포함하고, 마스크 레벨(13)에서 집적된 방사 세기를 그 단면의 전장에 걸쳐 거의 균일하게 하기 위해 적어도 광선 단면의 일 방향을 따라 광선(15)의 공간적 세기를 변경하며 광선(15)의 경로에 배치되는 필터 수단(1)을 포함하는 보정소자를 특징으로 한다.
Patent KR-20000067596-A (KR)
Inventor: KWAK YOUNG ILL
IPC: A01K74/00
Filed: 1999-04-29
Abstract: PURPOSE: A frame for capturing a saury is provided, to capture live saury pike and to leave out water plants where eggs are attached. CONSTITUTION: The frame for capturing a saury comprises a body(1); an air bag(2) for floating the body(1) which is placed in the upper part of the body(1); a plurality of heart valve-shaped entrances(3) which are placed in the side of the body(1); artificial or natural water plants(4) which are fastened at the upper rim of the body(1) to attract saury pike; and nets(5,9) which are placed at the upper and lower parts of the body(1) to prevent saury pike from escaping and are fastened by cords(6,7).
Patent KR-20010003697-A (KR)
Inventor: HONG BYEONG SEOP
IPC: H01L21/228
Filed: 1999-06-24
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to guarantee a stable electrical characteristic by preventing a grooving phenomenon on a surface of a doped polycrystalline silicon layer, and to prevent a defect by preventing the doped polycrystalline silicon layer and a tungsten silicide layer from diffusing to each other. CONSTITUTION: A gate insulating layer(42) and a doped polycrystalline silicon layer(43) are sequentially formed on a semiconductor substrate(41). An oxide layer as a diffusion barrier layer(44) is formed on the doped polycrystalline silicon layer. A tungsten silicide layer(45) is formed on the diffusion barrier layer. The doped polycrystalline silicon layer is formed by using SiH4 gas or Si2H6 gas containing phosphor or arsenic.
Patent KR-20010003734-A (KR)
Inventor: JUNG YUN HO
IPC: H01L21/336
Filed: 1999-06-25
Abstract: PURPOSE: A method for manufacturing a thin film transistor is to crystallize a silicon film doped with the impurity using a technology of sequential lateral solidification, after differentiating a source area from a drain area, thereby improving a characteristic of the thin film transistor. CONSTITUTION: A method for manufacturing a thin film transistor comprises the steps of: depositing an amorphous silicon film on an insulation substrate(200); forming a blocking layer which is patterned to expose alternatively a portion(A) to the amorphous silicon film; doping the amorphous silicon film with the impurity alternatively; crystallizing the doped amorphous silicon film using a technology of sequential lateral solidification; photo-etching the crystallized silicon film; patterning an active layer(23) allowing the doped silicon film to be a source area and a drain area; and forming a gate insulation film(24) and a gate electrode(25) on the patterned active layer.
Patent KR-20010003910-A (KR)
Inventor: JUNG IL HYEOK
IPC: C09K11/00
Filed: 1999-06-26
Abstract: PURPOSE: A method for surface treatment of a phosphor by adding a surface treatment dispersion containing at least one selected from the group consisting of silica, titania, water glass, zinc salt and aluminium salt to a phosphor aqueous dispersion and adjusting the solution to pH 5 to 8 and surface treated phosphor prepared by using the method are provided which produce a phosphor causing no recoagulation after ball mill treatment and phosphor paste having low viscosity. CONSTITUTION: The method comprises the steps of preparing a phosphor aqueous dispersion; preparing a mixture by adding a surface treatment dispersion containing at least one selected from the group consisting of silica, titania, water glass, zinc salt and aluminium salt to a phosphor aqueous dispersion; and adjusting the mixture to pH 5 to 8, wherein a solids content of the surface treatment dispersion is less than 1% by weight based on the total weight of the phosphor. The phosphor film prepared by using the phosphor paste has uniform thickness such that it can show excellent phosphor film characteristics.
Patent KR-20010004595-A (KR)
Title: Data output buffer
Inventor: KIM TAE GYEONG
IPC: G11C11/407
Filed: 1999-06-29
Abstract: PURPOSE: A data output buffer is provided to improve driving capacity of an output buffer with a high voltage using a bootstrapping circuit CONSTITUTION: A data output buffer includes a pull up driver(11), first and second stabilization circuits(N1,N3,P2,P3), a pull down driver(N4), and first and second bootstrappers. The pull up driver supplies a first power supply voltage source to a first output terminal by at least a data output enable signal and a data signal. The first stabilization circuit supplies a second power supply voltage source to the first output terminal when the pull up driver is disabled. The pull down driver supplies a second power supply voltage source to a second output terminal by the data output enable signal and a data bar signal. The second stabilization circuit supplies the first power supply voltage source to the second output terminal when the pull down driver is disabled. The first bootstrapper generates the first power supply voltage source after generating a bootstrapped high voltage during an early constant section in which the data output enable signal is transferred from a first logic state to a second logic state and controls operation of the pull up driver. The second bootstrapper generates the second power supply voltage source after generating a bootstrapped low voltage during the early constant section and controls operation of the pull down driver.
Patent KR-20010004754-A (KR)
Inventor: RA GYEONG MAN
IPC: G11C16/28
Filed: 1999-06-29
Abstract: PURPOSE: A circuit for initializing a reference memory cell is provided which can initialize the reference memory cell accurately as minimizing the time required. CONSTITUTION: A circuit for initializing a reference memory cell(51) comprises: the reference memory cell comprising a source, a drain, a control gate and a floating gate; the first power source(52) supplying a voltage to the drain of the reference memory cell by the control of a current detection part(55) when programming the reference memory cell; the second power source(53) supplying a voltage to the control gate when programming or reading the reference memory cell; the third power source(54) connected to the source of the reference memory cell; the fourth power source(59) applied to the source of the reference memory cell when erasing the reference memory cell; the first switch(57) which controls a path to measure a current from the external flowing to the reference memory cell according to a measuring signal, being connected to the drain of the reference memory cell; the second switch(58) which connects the source of the reference memory cell to the third or the fourth power source according to an erase control signal, being connected to the source of the reference memory cell; the current detection part which monitors the current flowing to the reference memory cell when programming the reference memory cell by receiving a program signal by being connected between the first power source and the drain of the reference memory cell, and when the monitored current is equal to a stop current applied from the external, forces the program operation of the reference memory cell to end by outputting a stop signal to the first and the second power source.
Patent KR-20010010880-A (KR)
Inventor: BAE GYU JONG
IPC: F25D23/00
Filed: 1999-07-23
Abstract: PURPOSE: A vegetable compartment for a refrigerator is provided to keep vegetables in a fresh state for a long time by preventing generation of water drops caused by a temperature difference on the bottom surface of a vegetable compartment cover. CONSTITUTION: A film(24) is attached to the bottom surface of a vegetable compartment cover(22) covering a vegetable compartment(20) of a refrigerator. Water particles are not formed on the bottom surface of a vegetable compartment cover by the vibration of the film so that generation of water drops is avoided. In addition, the film is most efficiently operated by feeding a current while cold air is supplied to a fresh food compartment. The film is vibrated by feeding a current to a piezoelectric vibrator(23). The water particles of moisture included in the air of the vegetable compartment are not formed on the bottom surface of the vegetable compartment cover. Thus, the generation of the water drops is prevented on the bottom surface of the vegetable compartment cover.
Patent KR-20000012033-A (KR)
Inventor: OKAMI TATASHI
IPC: H04B1/707
Filed: 1999-07-28
Abstract: PURPOSE: The device is provided to perform the bust receiving of control demand signal having different off-set timing. CONSTITUTION: The structure of the receiving device has the steps of: a synchronized circuit calculates correlation value in an each off-set timing; a circuit of synchronization decision and establishment decides off-set timing to be synchronized so as to receive the signal frame which arrives now by monitoring the correlation value of each off-set timing and also changes the off-set timing about the synchronized signal into a signal of a good quality if plural signal frames of different off-set timing arrives; thereby, it is possible to receive plural signal frames having different off-set timing using one signal decoding unit.
Patent KR-20010011482-A (KR)
Inventor: CHOI GI HWAN
IPC: G11C16/34
Filed: 1999-07-28
Abstract: PURPOSE: A flash memory device and an erasing method therefor are provided to prevent an over-erasure for flash memory cells. CONSTITUTION: A flash memory device includes a cell array(1100), selection circuits(1200,1300), X-counter(1400), Y-counter(1500), a sense amplifying circuit(1600), a high voltage generator(2200) and an erasing control circuit(2100). The erasing control circuit(2100) includes a loop counter(1700), a bulk step counter(1800), a flag counter(1900) and a control logic part(2000). The erasing control circuit(2100) detects whether erasing voltages to memory cells are over pre-detection voltage or not. Also, the erasing control circuit(2100) controls the high voltage generator(2200) so that the erasing voltages to memory cells are not over pre-detection voltage. Thereby, an over-erasure can be prevented.
Patent KR-20010018955-A (KR)
Inventor: KWUN HYUN JIN
IPC: H03M7/30
Filed: 1999-08-24
Abstract: PURPOSE: A method of providing compressed audio files and a system thereof are provided to convert text and voice data into a compressed audio file format to play the file through an audio player portably. CONSTITUTION: In a system providing compressed audio files, in a step(S210), an MP3 file provider(130) renews MP3 files from a database server(110) and saves the files in a built-in memory, minimizing downloading time. In (S220), a user selects a file through a search software. In (S230), the MP3 file provider(130) checks if the selected file is saved in the memory. In (S240), if the MP3 file is not found in the memory, the MP3 file provider(130) connects to the database server(110) and looks for the file there and downloads the file into the memory when found. In (S250), the user can listen to the text or voice data through his own MP3 player by downloading the MP3 file. In short, by searching the file first in the built-in memory, downloading time is reduced.
Patent KR-20010028863-A (KR)
Inventor: KWON TAE YEONG
IPC: B26F1/40
Filed: 1999-09-27
Abstract: PURPOSE: A pipe punching press is provided to punch a hole without deformation of a punched material, to maximize work efficiency and to punch various shapes of holes as well as an annular hole. CONSTITUTION: A punching press consists of a lift unit moved up and down by motive power such as hydraulic pressure and prepared with a processing unit for giving cutting force to a processed material and a bed portion(24) for settling and fixing the processed material. The lift unit of the press has several punching blades(30) formed on a lower face and the bed portion has a reinforcing material(40) as a long steel member inserted in a pipe without clearance. Plural holes corresponding to the position, shape and number of the punching blade are formed on an upper face of the reinforcing material. A fixing stand for fixing the reinforcing material is installed on an upper face of the bed to move the reinforcing material only upwardly. After the pipe is inserted in the outer circumference of the reinforcing material and fixed on the fixing stand, a lift stand(21) is descended. Then plural holes are formed on the pipe so that the efficiency of punching the pipe is maximized.