baber/WOPTO huggingface dataset:
Patent KR-20090022359-A (KR)
Title: 콘크리트 슬래브용 탈기구조물 및 이를 이용한 방수공법
Inventor: KIM SEONG GYEOM
IPC: E04B1/64
Filed: 2007-08-30
Abstract: 콘크리트 또는 몰탈 처리된 바닥면 상부로 단열층, 몰탈층을 포함하는 슬래브에 설치되어 수분과 외기 온도차에 의해 층 사이에 형성되는 습기를 강제로 배출시키는 콘크리트 슬래브용 탈기구조물이 개시되는바, 이는 콘크리트 슬래브의 마감층에 격자로 배치되는 탈기로 내에 설치가능 하며, 다수의 습기 흡입용 통공들(21a)이 형성되고, 습기 흡수제(22)가 수용되는 본체(21)와; 이 본체(21)에 고정되며 본체(21)내에 흡수된 습기를 외부로 방출하기 위한 탈기장치(30)가 연결되는 개구(24a)가 형성된 덮개(24); 및 이 덮개(24)의 개구(24a)에 연결되어 습기를 외부로 방출하도록 한 탈기장치(30)를 포함하되, 습기 흡수제(22)에 의해 습기가 건조되어 외부로 방출되도록 한 것이다. 
       
     신축줄눈, 탈기구조물, 탈기, 역류방지, 도막방수재, 콘트리트 슬래브, 도막 방수
Patent KR-20090024029-A (KR)
Title: Cryopreservation compound of sperm having amide and freezing method of sperm
Inventor: KIM DAE YOUNG
IPC: A01N1/00
Filed: 2007-09-03
Abstract: A sperm cryoprotectant and a method thereof are provided to improve survival rates and mobility of cryopreserved sperms by using methylformamide, dimethylformamide, or urea as a cryoprotectant. A sperm cryoprotectant comprises amide as an active ingredient. The amide is selected from the group consisting of methylformamide, dimethylformamide, and urea. The amide is included in the sperm cryoprotectant with 2-4% of concentration. The sperms indicate pig's sperms. A sperm freezing dilutant is prepared by adding the cryoprotectant to a first dilutant for freezing sperms. The first dilutant is prepared by mixing purified water with 12g/1000mL of TES, 2g/1000mL of Tris, 32g/1000mL of glucose, 5g/1000mL of OEP, 0.02g/1000mL of Gentamycin sulfate, and 200g/1000mL of egg yolk.
Patent KR-20090024871-A (KR)
Title: Manufacturing method for biodegradable cellulose film have fragrance mater
Inventor: LEE IN HWA
IPC: C08L1/02
Filed: 2007-09-05
Abstract: A method for manufacturing a biodegradable cellulose film is provided to increase the demand for packaging materials by emitting fragrance in packaging various goods and to prevent the contamination of the goods due to an antibacterial property. A method for manufacturing a biodegradable cellulose film comprises (S100) a step for mixing ethanol 100.0 parts by weight and cellulose 3~10 parts by weight and stirring the mixture for 10-20 minutes; (S200) a step for mixing the mixture and a plasticizer 1~5 parts by weight based on the ethanol, stirring the mixture for 10-20 minutes, adding distilled water 40~60 parts by weight in the stirred mixture and stirring the mixture for 10-20 minutes; (S300) a step for heating the stirred mixture in a double boiler of 75~85 °C for 10-20 minutes; (S400) a step for pouring the heated mixture into a mother plate having the even surface and drying the mother plate at 35~45 °C for 10-14 hours; and (S500) a step for separating the dried film from the mother plate.
Patent KR-20090029389-A (KR)
Title: Multipurpose bucket
Inventor: MOON DAE YOUNG
IPC: E03F5/04
Filed: 2007-09-18
Abstract: An odor prevention device for drain bucket is provided to prevent the odor of drain pipe from spreading and to facilitate removal of the sludge and waste accumulated in the bucket. An odor prevention device for drain bucket comprises a flipping bag(50) letting the staying water drained by the weight when over a certain amount of water is collected, and a supporting unit supporting the flipping bag so that the water flowed in the drain bucket flows out only to the opening of the flipping back. The flipping bag includes a plastic bag and a spring bar attached to the lower part of the plastic bag.
Patent KR-20090030672-A (KR)
Title: The low die transfer apparatus of the compression molding machine
Inventor: PARK KEUN SEONG
IPC: B27N5/02
Filed: 2007-09-20
Abstract: An apparatus for transferring a low die of a compression molding machine is provided to discharge a raw material compressed and shaped automatically with an upper die after supplying the raw material to an upper side of the low die. An apparatus(2) for transferring a low die of a compression molding machine comprises the followings: a plurality of low dies(21) combined with a mounting base(22) of the low die and transferred according to a chain(25) and a base roller(23) of the low die; a chain sprocket(24) of which chain is connected to a geared motor(M) formed to one side, transferred according to the chain and the base roller of the low die; and an upper and a lower operating cylinder.
Patent KR-20090033980-A (KR)
Title: Dual cds/pxga circuit
Inventor: CHO YOUNG KYUN
IPC: H03G3/20
Filed: 2007-10-02
Abstract: A dual CDS/PxGA(Correlated Double Sampling/Pixel Gain Amplifier) circuit is provided to obtain a wide variable gain by controlling the capacitance by the capacitor arrangement. A first sampling unit(310) samples a reset level and a data level of a first pixel. A second sampling unit(320) samples the reset level and the data level of a second pixel. An operational amplifier(330) receives a sampling value from the first sampling unit and the second sampling unit. The operational amplifier calculates the output signal of the first pixel and the output signal of the second pixel by using the sampling value and amplifies and outputs the calculated signal. The gain of the operational amplifier is decided based on the capacitance of the capacitors included in the first sampling unit and the second sampling unit.
Patent KR-20090035921-A (KR)
Title: Backlight unit and liquid crystal display having the same
Inventor: PARK WOO IL
IPC: G02F1/13357
Filed: 2007-10-08
Abstract: A backlight unit and a liquid crystal display having the same are provided to parallel connect resistance elements in an edge light source to reduce the amount of light of a corresponding light source, thereby preventing an uneven color phenomenon in an edge of a light source unit. A light source unit(230) comprises one or more light source arrays with a plurality of light sources. An active resistor device(232) is connected to at least one among light sources in parallel which are arranged at both ends of the light source arrays. The light source array comprises a red LED(Light Emitting Diode), a green LED and a blue LED. The active resistor device is integrally manufactured with at least one among a plurality of light emitting diode packages. The active resistor device comprises a diode.
Patent KR-20090038509-A (KR)
Title: Functional loess tile for removing formaldehyde
Inventor: KIM SUN JOO
IPC: C04B33/04
Filed: 2007-10-16
Abstract: Provided is a high-intensity functional loess tile for removing formaldehyde obtained through processes of adding functional materials to loess, molding the mixture and sintering the mixture. A method for manufacturing high-intensity functional loess tile comprises the following steps of: mixing 70-90wt% of loess and 10-30wt% of zeolite; adding 20-30wt% of water on a total weight of the mixture and stirring and molding the mixture with water; and sintering the molded materials. In the sintering step, the molded materials are gradually heated up to 700-900°C at a speed of 10-30°C/min and maintained for 2-10 minutes.
Patent KR-20090039090-A (KR)
Title: A bidirectional communication type hotstick
Inventor: SIN JEUNG SIK
IPC: H02J13/00
Filed: 2007-10-17
Abstract: A bidirectional communication type hot stick is provided to improve convenience of an operator by transmitting the phase information of a distribution line to a field unit through the wireless communication. A bidirectional communication type hot stick(100) includes a connection bar, a body, and a circuit unit. The connection bar is connected to a distribution line. The connection bar brings the phase information of the distribution line. One end of the connection bar is received in the body. The circuit unit is combined in the outer surface of the main body. The circuit unit includes a communication unit(110), a transforming unit, a filter unit, a converting unit, a control unit, and a display unit. The communication unit transmits the phase waveform information to a field unit or receives the phase identification information transmitted in the field unit and transmits the received information to the controller. The controller transmits the output signal of the transforming unit to the field unit through the communication unit as the phase waveform information. The display unit displays the phase identification information according to the command of the controller.
Patent KR-20090039879-A (KR)
Title: Sealed lead storage battery and manufacturing method of electrolyte thereof
Inventor: LEE WOON KYU
IPC: H01M10/12
Filed: 2007-10-19
Abstract: An enclosed lead battery having excellent initial performance and long life-time is provided to prevent danger of explosion due to exhausted electrolyte and restrain a short phenomenon generated on a front side of unit cell plate. An enclosed lead battery(10) having excellent initial performance and long life-time comprises: a positive electrode plate; a negative electrode plat; a separator; a sulfate electrolyte layer(3) located inside an electrolyte bath(1); and a gel electrolyte layer(4) positioned in an upper part of the sulfate electrolyte layer. A method for preparing the enclosed lead battery has the following steps of: placing an unformed unit cell(2) inside the electrolyte bath and injecting sulfuric acid in order to perform a formation process in a formation step; injecting sol type electrolyte prepared by adding a sulphuric acid aqueous solution to silica dispersion wherein fumed silica and distilled water are mixed in an electrolyte injection step; and forming gel type electrolyte by leaving the sol type electrolyte as it is at a room temperature in a stabilization step.
Patent KR-20090039885-A (KR)
Title: Apparatus and method of driving liquid crystal display
Inventor: KIM GI HONG
IPC: G02F1/133
Filed: 2007-10-19
Abstract: An apparatus and a method for driving a liquid crystal display are provided to reduce power consumption by not writing pixel data in a frame memory until a memory control signal is inputted. An over driving circuit(110) includes a delay unit(112), a frame memory(116), a lookup table(114), a comparison unit(120), and a memory control unit(118). The delay unit outputs the delayed data to the lookup table after delaying the pixel data of the inputted one frame for one frame. The frame memory stores the pixel data of a previous frame from the delay unit in response to the memory control signal of the memory control unit and outputs the pixel data stored in the frame memory. The comparison unit generates a comparison control signal by comparing the pixel data of the previous frame from the frame memory with the modulated pixel data outputted in the look up table. The lookup table compares the pixel data of the previous frame with the pixel data of the current frame and selects and outputs the previously set modulation data by the comparison result. The memory controller determines whether the frame memory is operated according to the comparison information of the comparison unit.
Patent KR-20090040589-A (KR)
Title: Plasma electrode, monitoring module of plasma, plasma apparatus and atmospheric pressure plasma cleaning apparatus incorporating the same
Inventor: SHIN IN CHUL
IPC: H01L21/3065
Filed: 2007-10-22
Abstract: A plasma electrode, a plasma monitoring module, a plasma device including the same, and an atmospheric pressure plasma cleaning apparatus are provided to detect the discharge performance of the plasma in real time by forming a discharge hole and a plasma connection member directly connected to the plasma gas through the discharge hole. An atmospheric pressure plasma cleaning apparatus includes a power electrode(100), a ground electrode(200), a gas supply port, a discharge hole(310), a plasma connection member(320), a voltmeter(340), an operation unit(350), a display unit(360), a transfer member(400). The power electrode electrically reacts to the ground electrode and has the electrical reaction area for generating the plasma. The ground electrode is installed to be separated from the power electrode. A plurality of spray through-holes(250) which the plasma gas generated between the power electrodes permeates, is formed on the ground electrode. A discharge hole provides a stable plasma gas connection area to the plasma connection member. The plasma connection member is fixed in the power electrode and the ground electrode.
Patent KR-20090046023-A (KR)
Inventor: YANG JONG MUN
IPC: H01J9/24
Filed: 2007-11-05
Abstract: 본 발명은 플라즈마 디스플레이 패널에 관한 것이다. 
     본 발명의 일실시예에 따른 전면 기판과, 전면 기판에 배치되면 서로 나란한 스캔 전극과 서스테인 전극과, 스캔 전극과 서스테인 전극 상부에 배치되는 상부 유전체 층과, 전면 기판과 대항되게 배치되는 후면 기판 및 전면 기판과 후면 기판 사이에서 방전 셀을 구획하는 격벽을 포함하고, 상부 유전체 층은 유리 재질과 제 1 안료(Pigment)로서, 코발트(Co)재질을 포함하고, 상부 유전체 층의 납(Pb) 함유량은 1000ppm(Parts Per Million)이하일 수 있다.
Patent KR-20090046104-A (KR)
Inventor: LEE SEUNG YOUP
IPC: G06Q50/10
Filed: 2007-11-05
Abstract: 본 발명에 따른 양생 상태 모니터링 단말장치는, 콘크리트 구조물의 양생 상태에 대한 모니터링 데이터를 무선으로 전송하는 모니터닝 단말장치로서, 상부 케이스; 상기 상부 케이스와 탄성체 실링 부재가 개재되어 결합되는 하부 케이스; 및 상기 상부 케이스와 하부 케이스의 사이의 내부공간에 구비되며 상기 모니터링 단말장치가 설치되는 지점의 온도 또는 습도를 센싱하는 센싱부와 상기 센싱된 센싱데이터를 무선통신으로 전송하는 통신부 및 전원부로 이루어지는 제어모듈을 포함하는 것을 특징으로 한다. 
     상기 본 발명에 의하면, 양생 상태에 대한 센싱과 데이터의 전송을 하나의 일체형 단말장치에서 수행할 수 있으므로 단말장치의 구조를 더욱 간단히 구성할 수 있음과 동시에 구조물 등의 콘크리트 양생 과정에 매설되는 특수한 환경에 더욱 적합하고도 효율적인 양생 상태 모니터링 단말장치 및 이를 이용한 양생 상태 모니터링 시스템을 구현할 수 있는 효과를 창출할 수 있다.
Patent KR-20090047269-A (KR)
Inventor: JEON SANG WOO
IPC: B60Q1/068
Filed: 2007-11-07
Abstract: 램프 셋 회전 장치가 제공된다. 본 발명의 실시예에 따른 램프 셋 회전 장치는 모터, 상기 모터에 의해 회전하고 나사산이 형성된 샤프트, 상기 샤프트에 삽입되어 상기 샤프트를 따라 움직이도록 나사산이 형성된 홀 및 상부에 구형상의 삽입볼을 포함하는 슬라이딩부 및 램프 셋의 하단에 상기 삽입볼이 삽입되도록 돔 형상인 홈을 가지는 홀더부를 포함한다. 
       
     램프 셋, 헤드라이트, 램프 셋 회전 장치, 자동차
Patent KR-20090047604-A (KR)
Inventor: SUH DONG MAN
IPC: G01N27/00
Filed: 2007-11-08
Abstract: 본 발명은 ECT를 이용한 회전형 센서부가 부착된 결함 측정장치에 관한것으로 상세하게는 관체의 결함을 측정하는 측정장치에 있어서, 관체의 상측에 설치되어 관체가 진행할 때 ECT신호를 방출하여 관체의 결함을 검출하며, 일방향으로 지속적으로 회전하는 센서부와; 상기 센서부의 중심부에 결합되어 센서부를 고정시키는 고정대와; 상기 고정대의 양측에 결합되어 센서부를 보호하며, 관체의 진행방향으로 회전하는 롤러부와; 상기 센서부의 상측과 밸트로 연결되어 센서부를 회전시키는 모터와; 상기 센서부를 외부의 측정장치에 연결하는 연결단자;를 포함하여 구성되는 것을 특징으로 하는 ECT를 이용한 회전형 센서부가 부착된 결함 측정장치에 관한것이다. 
       
     ECT, 회전, 센서, 관체, 결함
Patent KR-20090050139-A (KR)
Inventor: BAE SUNG SU
IPC: C08G69/02
Filed: 2007-11-15
Abstract: 본 발명은 내열성 폴리아미드의 제조방법에 관한 것으로서, 하기 화학식 1로 표시되는 디에스테르 화합물 및 하기 화학식 2로 표시되는 디아민 화합물을 포함하는 모노머 혼합물을 축합중합(condensation polymerization)하여 하기 화학식 3으로 표시되는 반복단위를 포함하는 폴리아미드를 제조하는 것인 내열성 폴리아미드의 제조방법을 제공한다;  
     [화학식 1] 
     
       
         
     
     상기 식에서,  
     R 1 은 탄소수 1~20의 지방족 또는 탄소수 6~20의 방향족 탄화수소이다.   
     [화학식 2] 
     
       
     
     상기 식에서,  
     R 2 는 탄소수 1~20의 지방족 또는 탄소수 6~20의 방향족 탄화수소이다.   
     [화학식 3] 
     
       
     
     상기 식에서,  
     R 2 는 탄소수 1~20의 지방족 또는 탄소수 6~20의 방향족 탄화수소이다.   
     본 발명에 따른 내열성 폴리아미드의 제조방법은 원료물질인 모노머를 간단하고 저렴하게 제조할 뿐만 아니라, 별도의 용매를 필요로 하지 않으므로 중합반응이 짧아 경제적인 내열성 폴리아미드의 제조방법을 제공할 수 있다. 
     폴리아미드, 내열성, 디에스테르 화합물, 디아민 화합물
Patent KR-20090050822-A (KR)
Inventor: LEE BYUNG RAE
IPC: H04L9/08
Filed: 2007-11-16
Abstract: 본 발명은 휴대 방송 시스템에서 특정 브로드캐스트 서비스에 가입하여 암호화키를 획득하여 스마트 카드에 저장한 제 1 단말로부터 제 2 단말로 변경시, 제 2 단말이 암호화키를 획득하는 방법 및 장치에 있어서, 스마트카드와의 연결을 통해 상기 가입한 서비스들의 식별자를 수신하는 과정과, 방송 채널을 통하여 서비스 가이드를 수신하는 과정과, 상기 가입한 서비스들의 식별자들과 서비스 가이드를 비교하여 암호화키를 필요로 서비스가 있는지 검색하는 과정과, TBK(Terminal Binding Key)를 필요로하는 서비스가 있다면, 서비스 가이드에 지정된 허가 이슈어(Permission issuer)로 연결하여 TerminalBindingKeyID를 전송함으로써 TBK를 획득하는 과정을 포함하여 구성됨을 특징으로 한다. 
     
     BCAST, TBK, SMART CARD
Patent KR-20090054691-A (KR)
Title: Active headrest assembly for vehicles
Inventor: PARK SANG DO
IPC: B60N2/90
Filed: 2007-11-27
Abstract: An active headrest assembly for a vehicle is provided to improve operation response in vehicle collision by operating an active plate with a lumber unit. An active headrest assembly for a vehicle comprises: a headrest(120) supported in a seat back frame(600); an active plate(100) which is connected to the headrest and in which a guide slot(110) is formed; a guide pin(200) which is mounted on the guide slot for sliding movement; a lumber unit being connected to the bottom part of the seat back frame to be rotated; and a return unit(400) which elastically connects the active plate and the lumber unit. The lumber unit comprises a support wire(310) fixed to the guide pin.
Patent KR-20090056433-A (KR)
Title: Method for fabricating semiconductor device
Inventor: KIM JEA HEE
IPC: G03F7/085
Filed: 2007-11-30
Abstract: A method for fabricating a semiconductor device is provided to improve the reliability of a process by preventing defectives of a photoresist film through enhanced adhesive force between a substrate and the photoresist film, and to prevent defects and particles by removing the photoresist pattens in a cleaning process and etching process. A method for fabricating a semiconductor device comprises the steps of: coating a bonding layer(110) made of polymer materials containing at least one of polyethylene oxide(PEO), polyethylene glycol(PEG) and polyvinyl alcohol(PVA) on a substrate(100) formed with a lower film; forming an upper film(120) on a bonding layer; and forming an antireflective layer on or under the bonding layer. The upper film is the photoresist film. After the step of coating the bonding layer, a baking process for removing a solvent of the bonding layer is performed.
Patent KR-20090056742-A (KR)
Title: The pumping equipment to ragricultural chemicals of high utility factor
Inventor: PARK JUNG TAE
IPC: A01M7/00
Filed: 2007-11-29
Abstract: An agricultural chemical pumping device is provided, which minimizes the structure of the agricultural chemical pumping device or volume and motor capacity. An agricultural chemical pumping device comprises: piston rods(230,330) which are operated by the cam wheel; chemical solution suction grooves supplying the chemical solution to each cylinder(410,420) in which the piston rod is included; chemical solution discharge grooves which are formed so that the pumped chemical solution can be discharged according to the operation of the piston rod; a supply side connection pipe for simultaneous supply of the chemical solution; and an output side connection pipe for chemical solution supply.
Patent KR-20090059309-A (KR)
Title: Method and apparatus for controlling temperature of (an) oven range
Inventor: LEE SEUNG JUN
IPC: F24C7/08
Filed: 2007-12-06
Abstract: A temperature control apparatus and method of an oven range are provided to protect a meat probe by restricting the pyrolysis function and driving a convection fan when the meat probe is connected to the oven. A temperature control apparatus of an oven range comprises a temperature sensing part(200) sensing the inner temperature of the oven range, a controller(300) which determines the connection of a meat probe(100) and the setting of pyrolysis function and controls the activation of pyrolysis function and the operation of a convection fan(700), a heater drive unit(400) operating a heater(500) according to the control signal of the controller, and a fan driving unit(600) controlling the drive of the convection fan according to the control signal of the controller.
Patent KR-20090059586-A (KR)
Title: Safty door lock apparatus and operating method thereof
Inventor: LEE UN SUB
IPC: E05B49/00
Filed: 2007-12-07
Abstract: A safety door lock apparatus and an operation method thereof are provided to prevent a safety accident by locking a door in case users come out from a manufacturing facility. A safety door lock apparatus includes a key part(100) and a latch part(200). The key part is installed in one end of a door which is positioned inside an operating room in which a manufacturing facility is included. The latch part corresponds to the key part, and is installed in one end of a door frame. The door is converted to a locking state or an unlocking state by inputting a temporary password and entering people number in the key part.
Patent KR-20090060057-A (KR)
Title: Hipass cradle which have function of synchronous mounting of hipass terminal and mobile terminal
Inventor: SONG YOUNG JIB
IPC: H04B1/38
Filed: 2007-12-07
Abstract: A hipass terminal and a hipass holder where portable terminals can be simultaneously placed are provided to simultaneously place the hipass terminal and the portable terminal, thereby cleanly arranging the inside of a car. A glass surface attachment unit(111) is attached to a glass surface inside a car. A support unit(112) is integrally formed with the glass surface attachment unit or attached to the glass surface attachment unit. A hipass terminal placing holder(113) is connected to the support unit. A portable terminal holder(114) is connected to the support unit. A power distributing unit(115) is installed or connected in or to at least one between the holder or the support unit.
Patent KR-20090062463-A (KR)
Title: Mask, manufacturing equipment for the same and manufacturing method using the same equipment
Inventor: KIM SEUNG JA
IPC: A61H37/00
Filed: 2007-12-13
Abstract: A beauty treatment mask which is capable of partially massaging the face and allows far-infrared rays and anions to be penetrated deep into skin pores and capillary vessels of a user of the beauty treatment mask, and an apparatus and a method of manufacturing the same are provided. In a manufacturing apparatus of a beauty treatment mask for emitting far-infrared rays or anions to the facial skin to promote blood circulation and cell activities, the manufacturing apparatus of the beauty treatment mask comprises: an upper module(210) which has a concave part formed on the bottom side thereof correspondingly to the shape of the face and which has an upper molding projection(212) formed on the edge thereof; a lower module(220) which has a convex part formed on the top side thereof correspondingly to the shape of the face and which has a lower molding projection(222) formed on the edge thereof; guide pins and holes(214,224) which are formed in corners of the upper and lower modules and guide counter positions of the upper and lower modules such that the upper and lower molding projections correspond to each other; and a pair of handles(216) formed on sides of the upper module to open or close the upper module with respect to the lower module.
Patent KR-20090063317-A (KR)
Title: Train separated detecting system for railroad signal
Inventor: SHIN DUCK HO
IPC: B61L25/02
Filed: 2007-12-14
Abstract: A train separation detection system for railroad signal is provided to prevent collision between a prior train and a posterior train by securing a safe distance from the prior train. A train separation detection system for railroad signal includes a train tail information generation unit, a train tail information sensing unit, and a ground controller(500). The train tail information generation unit is installed at a tail railroad car(102) of a train. On-board controllers(301,302) are installed in front-leading railroad cars(101, 201). The train tail information sensing units are installed in a constant interval at one side of the railroad. The train tail information sensing unit senses the train tail information generation unit. The ground controller receives the position information of the front-leading railroad cars from the on-board controller. The ground controller receives the position information of the tail railroad car from the train tail information sensing unit. The ground controller determines a separating state of the railroad card of the train.
Patent KR-20090064492-A (KR)
Title: Pen of magic
Inventor: KIM SUN HEE
IPC: B43K7/12
Filed: 2007-12-16
Abstract: A writing instrument is provided to allow the length to be controlled and to allow a ballpoint pen lead to be inserted into or drawn out from a case. A writing instrument comprises an external case(10); an inner case(20) which slide-moves in the outer case and is provided with a penetration hole(24) at the one side; a ballpoint pen lead(40) which is installed inside the inner case and can be projected through the penetration hole; a ballpoint pen lead control part(30) which makes the ballpoint pen lead be projected through the penetration hole or be got into the penetration hole; a first fixing unit which fixes the external and inner cases at the maximum insertion position; and a second fixing unit which fixes the external and inner cases at the minimum insertion position.