baber/WOPTO huggingface dataset:
Patent KR-20170108388-A (KR)
Inventor: KIM NAM HO
IPC: B61G11/12
Filed: 2016-03-17
Abstract: The present invention relates to a shock absorber for a train having a piston valve structure differentiating an inner portion of a cylinder charged with fluid into a compression chamber and a tension chamber. The piston valve comprises: a body formed with a main flow path so that fluid can be flowed when compression stroke and tension stroke are performed; a valve disc for blocking an output side of the main flow path by being stuck to an upper portion and a lower portion of the body, and generating reduction force by opening the output side of the main flow path when compression stroke and tension stroke are performed; and an asymmetrical disc closely supporting a rear surface of the valve disc in the upper portion and the lower portion of the body, and concavely formed in an initial opening location of the valve disc so as to be opened sequentially along an edge portion from the initial opening location of the valve disc, thereby capable of realizing smooth reduction force without a blow off phenomenon.
Patent KR-20170109260-A (KR)
Inventor: IM CHANG JUN
IPC: H02M1/00
Filed: 2016-03-21
Abstract: Disclosed is an inverter having a cable capacity checking function. According to the present invention, the inverter comprises: an RFID reader unit configured to receive cable capacity information from a first RFID tag arranged in a cable connected to the inverter; a determination unit configured to determine information with respect to an electric motor allowable in accordance with the cable capacity information; and a display unit configured to display information with respect to the motor.
Patent KR-20170109818-A (KR)
Title: 차량의 외부 영상 빅데이터를 이용한 교통 정보 수집 방법 및 장치
Inventor: KO HAN SEOK
IPC: G08G1/0968
Filed: 2016-03-22
Abstract: 차량의 외부 영상 빅데이터를 이용한 교통 정보 수집 방법을 제공한다. 본 발명의 일 실시예에 따른 차량의 외부 영상 빅데이터를 이용한 교통 정보 수집 방법은 차량의 외부 상황을 촬영한 영상에 포함된 적어도 하나의 객체에 대한 위치, 종류 및 상태 중 적어도 하나에 대한 정보를 나타내는 객체분류정보를 생성하는 단계; 상기 객체분류정보에 기초하여, 상기 차량의 외부 상황을 분석한 정보인 상황분석정보를 생성하는 단계; 및 상기 상황분석정보가 차량의 통행을 방해하는 사건인 통행방해이벤트에 해당하는지에 기초하여, 선택적으로 상기 상황분석정보를 서버에게 전송하는 단계를 포함한다.
Patent KR-20170109823-A (KR)
Inventor: CHOI HYE YOUNG
IPC: H01G4/30
Filed: 2016-03-22
Abstract: 본 개시의 일 실시 예에 따른 커패시터는 제1면, 제2면 및 상기 제1면 및 제2면을 연결하는 제3면 및 제4면을 포함하며, 제2면에 노출되도록 형성된 제1 및 제2 리드부를 갖는 제1 및 제2 내부전극을 포함하는 바디, 바디의 제2면에 형성되며, 상기 제1 및 제2 내부전극과 각각 전기적으로 연결된 제1 및 제2 외부전극 및 바디의 제3면 및 제4면에 형성되되 제2면과 접하는 모서리로부터 연장되어 형성된 더미 전극을 포함함으로써, 용량 극대화와 동시에 회로기판과의 고착강도를 향상시킬 수 있다.
Patent KR-20170110440-A (KR)
Inventor: WOO JU SUNG
IPC: B29C48/30
Filed: 2016-03-23
Abstract: 본 발명은 사출 또는 압출 성형에 있어서, 용융 수지와 같은 유체의 혼합을 촉진시켜주는 혼합 노즐 조립체에 관한 것으로서, 더 구체적으로는 혼합 부재에 형성된 나선형의 리브가 용융된 합성수지계열, 탄소나노튜브, 탄소 섬유, 그래핀과 같은 특수 소재가 함유된 고분자 수지 펠릿을 분산 및 믹싱한다. 또한, 간단한 구조임에도 불구하고 우수한 품질의 제품을 생산할 수 있으며, 성형장치의 구조를 변경시킬 필요가 없기 때문에, 제작 및 설치의 비용과 번거로움이 절감되고, 보압으로부터 발생하는 문제점들, 즉 싱크마크, 기공, 성형제품의 수축량 증가, 성형제품의 치수 감소, 성형제품 치수변화의 증대, 수지 역류에 의한 고화층 내부에 배향과 같은 것을 해결하는 것을 목적으로 한다.
Patent KR-20170113742-A (KR)
Inventor: YOON KWANG SANG
IPC: H04N5/225
Filed: 2016-03-24
Abstract: 본 발명은 지문을 촬영하기 위한 것으로서, 렌즈 교환식 카메라의 바디에 설치되는 경통 내부에 내부 발광부를 구비하고, 상기 내부 발광부 내부에 지문 시편을 배치한 후 상기 내부 발광부가 지문 시편의 배경색에 대한 보색을 발광하여 선명한 지문 사진을 확보할 수 있는 한편 조정 시간을 단축하여 업무 효율을 향상시킬 수 있는 복합 광원 모듈을 가지는 카메라 접사용 기구 및 이를 이용한 지문 시편 촬영 방법에 대한 것이다.
Patent KR-20170111201-A (KR)
Inventor: LEE DONG HYUN
IPC: D06B23/04
Filed: 2016-03-25
Abstract: 본 발명은 염색용 보빈에 관한 것으로서 염액이 투입되는 면적이 최대로 확보될 수 있고, 보빈에 감기는 원사가 흘러내리지 않도록 구성할 수 있을 뿐만 아니라, 염색조 내에 보다 많은 개수의 보빈 투입으로 인한 대량 염색이 가능하도록 하기 위하여, 염색조 내에 다수개의 보빈을 투입하여 대량으로 원사를 염색할 수 있는 염색용 보빈에 있어서, 원형띠 형상으로 형성되는 상부캡(10)과, 원형띠 형상으로 형성되어 상기 상부캡(10)의 하부측에 이격 위치되는 하부캡(20)과, 상기 상부캡(10)과 하부캡(20) 사이에 방사상으로 연결 배열되어 고정되는 다수의 지지바(30)로 형성되며, 상기 다수 지지바(30)의 상부 내측에 환형으로 빙둘러 지지바(30)를 고정하는 스프링 형태의 고정부재(40)가 구비되고, 상기 고정부재(40)의 하부측에 이격 위치되며, 다수 지지바(30)의 하부 내측에 환형으로 빙둘러 하부캡(20)의 하부 외측에서 삽입되는 인접한 보빈(100)의 상부캡(10)에 의해 탄성 압축되도록 스프링 형태의 탄성부재(50)가 구비되어지되, 상기 탄성부재(50)의 상부측은 지지바(30)의 내측에 고정 지지되고, 상기 탄성부재(50)의 하부측은 지지바(30)의 내측에 비고정상태로 상하 탄성작동되도록 구성하는 것을 포함하여 이루어짐을 특징으로 한다.
Patent KR-20160118961-A (KR)
Title: Plasma enhanced chemical vapor deposition of films for improved vertical etch performance in 3d nand memory devices
Inventor: JHA PRAKET P
IPC: H01L21/205
Filed: 2016-03-31
Abstract: The present invention relates to thin films including high aspect ratio feature definitions, and methods for forming the thin films. 3D NAND gate stacks receive high aspect ratio etching depending on increase of gate height. A vertical etching profile is tapered by increasing height of a gate stack due to current limits of etching methods. Provided a unique deposition scheme capable of compensating etching degradation in deep trenches by using a novel plasma-enhanced chemical deposition (PECVD) film deposition method. The present invention is provided to grade various features (a refractive index of a film, stress, and dopant concentration in the film) of as-deposited films (silicon nireide or the like), thereby making a uniform etching profile by compensating differences of wet and dry process etching rates.
Patent KR-20170116412-A (KR)
Title: 발광소자 및 조명시스템
Inventor: LEE SANG YOUL
IPC: H01L33/22
Filed: 2016-04-11
Abstract: 실시 예는 발광소자, 발광소자의 제조방법 및 조명시스템에 관한 것이다. 
실시 예에 따른 발광소자는 제1 도전형 반도체층과, 제1 도전형 반도체층 상에 활성층과, 활성층 상에 제2 도전형 반도체층과, 활성층으로부터 노출된 제1 도전형 반도체층의 일면상에 제1 전극과, 제2 도전형 반도체층 상에 제2 전극과, 제1 도전형 반도체층의 타면 상에 랜덤한 크기를 갖는 제1 광 추출 구조와, 제1 광 추출 구조와 접하는 레진층, 및 레진층 상에 배치된 기판을 포함하여 광 추출 효율을 향상시키고, 발광 효율을 향상시킬 수 있다.
Patent KR-20170119008-A (KR)
Title: 잡곡 발효음료 및 그의 제조방법
Inventor: KIM TAE GYU
IPC: A23L2/38
Filed: 2016-04-15
Abstract: 본 발명은 잡곡 발효음료 및 그의 제조방법에 관한 것이다. 보다 상세하게는  
종균을 선별하는 공정과, 잡곡발효제의 제조공정 및, 잡곡발효제를 접종하여 잡곡발효음료를 제조하는 공정으로 구성된다. 종균 선별은 이화학적인 평가를 통하여 잡곡발효제로 전분분해 활성이 높고, 단백질 분해활성이 낮은 균주 중에서 선별하였다. 잡곡발효제 제조공정은 차좁쌀을 침지 및 증자시켜 냉각하는 단계와,  Aspergillus       oryzae  KCCM CF1001, 1003, 46424, 46959 및  Aspergillus       acidus  KCCM CF1005 중에서 선정된 균주를 potato dextrose broth에 배양하여 균질시킨후, 접종하여 종균을 배양하여 종국을 만드는 단계와, 쌀, 메밀, 차조, 기장, 수수로 구성된 잡곡을 침지, 증자 및 냉각하여 호화시키는 단계와, 상기의 종국을 호화된 잡곡에 접종하여 종국을 배양한 후, 출국한 다음 건조하여 분쇄하여 잡곡발효제를 만드는 단계로 구성된다.
Patent KR-20160128223-A (KR)
Inventor: OHKAWARA SATOSHI
IPC: H01L21/677
Filed: 2016-04-19
Abstract: The objective of the present invention is to provide a cutting apparatus capable of reducing manufacturing costs by reducing the number of components while simplifying the configuration of the whole apparatus to realize miniaturization. The cutting apparatus comprises: a cassette placing unit for placing a cassette accommodating a plurality of workpieces; a feeding and discharging unit for feeding and discharging the workpieces to and from a cassette placed in the cassette placing unit; a temporary mounting unit for temporarily mounting the workpieces discharged from the feeding and discharging unit; a maintaining table for maintaining the workpieces temporarily mounted on the temporary mounting unit; a process transferring unit for transferring the maintaining table in a processing and transferring direction; a first cutting unit and a second cutting unit for cutting the workpieces maintained on the maintaining table; and a yield transferring unit for transferring the first and second cutting units in a yield transferring direction. The first and second cutting units have movable supporting frames and cutting blades arranged on the identical axis line, arranged on each of the movable supporting frames. The movable supporting frames of the first and second cutting units are movably supported on a Y-axis guide rail arranged along a Y-axis direction. The yield transferring unit is composed of a common Y-axis linear rail arranged along the Y-axis guide rail; a first coil operator mounted on the movable supporting frame of the first cutting unit, as inserted into the Y-axis linear rail; and a second coil operator mounted on the movable supporting frame of the second cutting unit, inserted into the Y-axis linear rail.
Patent KR-20170119926-A (KR)
Title: 호퍼장치
Inventor: KWON SUNG JIN
IPC: F27D25/00
Filed: 2016-04-20
Abstract: 호퍼장치가 개시된다. 본 발명의 실시 예에 따른 호퍼장치는 수용물이 투입되는 수용공간을 형성하는 측벽을 갖는 호퍼 몸체를 포함하고, 측벽은 고정벽체와, 고정벽체에 외력 인가 시 선택적으로 수용공간을 향하여 이동 가능하게 제공되는 이동벽체를 포함한다.
Patent KR-20160052517-A (KR)
Inventor: LEE DAE HO
IPC: A61B5/055
Filed: 2016-04-28
Abstract: Disclosed is a magnetic resonance imaging device which provides content to a subject. The magnetic resonance imaging device can include a control unit which acquires information on a plurality of pulse sequences, which are used for photographing magnetic resonance images, and provides content including an index of an ongoing pulse sequence, information on a progress of the ongoing pulse sequence, and an index of a following pulse sequence, based on the acquired information. According to the present invention, content, which is associated with photographing of a medical image, can be automatically provided by using subject condition information or photograph information.
Patent KR-20170124836-A (KR)
Inventor: HUH JI YOUNG
IPC: G10L15/28
Filed: 2016-05-03
Abstract: The present invention relates to an electronic device and a control method thereof. The electronic device comprises: a microphone obtaining sound; and a control part determining whether the obtained sound is a learned sound and outputting information on the obtained sound based on a determined result. The method of operating the electronic device including the microphone comprises: a step of obtaining sound through the microphone; a step of determining whether the obtained sound is a learned sound; a step of outputting information on the obtained sound based on the determined result. A purpose of the present invention is to recognize a large variety of surrounding sound and provide information on the recognized sound.
Patent KR-20170125599-A (KR)
Inventor: CHANG MIN HO
IPC: A61B6/00
Filed: 2016-05-04
Abstract: The present invention relates to a three-dimensional dental data processing apparatus and a method thereof which can more accurately and precisely diagnose a tooth state, and can analyze an occlusion state by a movement of a tooth and a jaw joint by coupling and aligning tooth data and image data scanning a face to determine the occlusion state of the tooth, and analyzing the movement of the tooth or the jaw joint to generate a tooth model. The apparatus and the method of the present invention also can establish a treatment measure by accurately analyzing a state of a patient based on the movement and the occlusion state, and can improve a treatment effect by generating and correcting a tooth model suitable for the state of the patient.
Patent KR-20170131886-A (KR)
Inventor: LEE HYOUNG JIN
IPC: H01L51/56
Filed: 2016-05-23
Abstract: The present invention relates to a deposition material injecting device of a deposition apparatus, which includes: an evaporating body in which a deposition material is stored and heated; one or a plurality of nozzle bodies formed on one side of the evaporating body to discharge an evaporation material; and a nozzle cap which is combined with each nozzle body and has a structure in which an inner diameter of an inner cross section gradually becomes narrower and then gradually becomes wider, thereby securing a uniform deposition thickness by changing an injection characteristic. Accordingly, the reliability of a deposition process can be improved.
Patent KR-20160140444-A (KR)
Title: Electrical shield connector
Inventor: LIPTAK NICOLE L
IPC: H01R4/18
Filed: 2016-05-25
Abstract: An electrical shield connector (172) is formed to be attached to an end of a shielded cable (100) including a conductive wire (102) and a shield conductor (124) vertically surrounding the conductive wire (102). The shield connector (172) includes: a connection part formed to be connected with a corresponding matching electricity shield connector (174); and a cable attachment part (180) formed to vertically receive an end of the shield conductor (124). The connection part forms a shroud surrounding an electric terminal (160) attached to the conductive wire (102). The cable attachment part (180) and/or a crimp wing part (176), protruding therefrom, form a protruding part (244), formed to dent the shield connector (124) by touching the connector, thereby mechanically and electrically connecting the shield connector (172) with the shield conductor (124). The cable attachment part (180) forms a null type pattern (246) including a plurality of rhomboid concave parts. The null type pattern (246) is formed on the inner surface of the cable attachment part (180).
Patent KR-20160140445-A (KR)
Title: Method and apparatus for backside deposition reduction by control of wafer support to achieve edge seal
Inventor: DUVALL ANDREW
IPC: H01L21/683
Filed: 2016-05-25
Abstract: Disclosed are a method and an apparatus for reducing rear surface deposition by controlling at least one wafer support unit. A processing chamber, such as a processing chamber for atomic layer deposition (ALD), includes a pedestal and at least one wafer support unit configured to extend from the pedestal. A wafer is provided on the pedestal, the at least one wafer support unit makes contact with a rear surface of the wafer to support the wafer, and the at least one wafer support is positioned at a height that an outer edge of the wafer sags. The outer edge of the wafer sags to substantially make contact with the pedestal or a carrier ring surrounding the pedestal. Accordingly, edge sealing is formed to limit access to the rear surface of the wafer by process gases during a deposition process.
Patent KR-20170140645-A (KR)
Inventor: SHIN SEUNG CHEOL
IPC: G06K9/62
Filed: 2016-06-13
Abstract: A motion recognition system including an electronic device mounting a camera according to the present invention includes: a television; an electronic device charger; and the electric device mounting the camera. The electronic device photographs a user through the camera and transmits a predetermined control signal to a television if the exercise of the photographed user is a reference value or less. As a result of the configuration, when the user takes indoor exercise while watching the television, if the user stops the exercise, the user can continue the exercise by disturbing the watching of the television.
Patent KR-20170142715-A (KR)
Inventor: KIM SUNG GU
IPC: F24H9/20
Filed: 2016-06-20
Abstract: The present invention relates to a heater in which a heating unit is constituted by a quartz pipe and, more specifically, to an electric heater configured to have improved heating efficiency using the same electric power, thereby reducing power consumption. The electric heater comprises: a main body having a predetermined size; a heating unit including a quartz pipe provided in the main body; and an energy-saving switch connected to the heating unit. According to the present invention, by using electric energy supplied in a limited capacity, improved heat generation is achieved and thermal efficiency is improved. Energy is saved for a heater produced with the same capacity. Further, blowing air is hot air heated to a certain temperature by heating and blowing intake air. In addition, moisture vaporized by a humidity control unit is supplied together when the hot air is blown so the room keeps humidity constant without being dried by heat.
Patent KR-20180001065-A (KR)
Inventor: LEE SANG JUN
IPC: B32B27/26
Filed: 2016-06-24
Abstract: The present invention relates to a method for manufacturing a composite rubber sheet comprising a rubber sheet layer and a thermoplastic synthetic resin layer integrated with the rubber sheet layer, wherein the manufacturing method of the present invention comprises the following steps: mixing a rubber material and a crosslinking agent to form a rubber sheet under a condition in which a crosslinking reaction does not occur in the rubber material; mixing a thermoplastic synthetic resin and a curing agent to form a mixed solution; applying a mixture of the thermoplastic synthetic resin and the curing agent to the rubber sheet and drying the mixture to form a synthetic resin layer; and heating and pressurizing the rubber material constituting the rubber sheet layer to enable the crosslinking reaction to be performed, so that the synthetic resin layer and the rubber sheet layer are bonded to each other at the surface abutting each other.
Patent KR-20180003919-A (KR)
Inventor: KIM YONG GOO
IPC: C12Q1/68
Filed: 2016-07-01
Abstract: The present invention relates to a method for providing information necessary for predicting apoptosis of mesenchymal stem cells by measuring the expression level of CDKN2A gene in mesenchymal stem cells, and to compositions and kits used therefor.
Patent KR-20180006099-A (KR)
Inventor: KIM YOUNG SOO
IPC: A47L15/00
Filed: 2016-07-08
Abstract: According to the present invention, a dishwasher comprises: a cabinet embedded in a sink, and having an opening surface communicating with a sink ball; a drawer arranged in the cabinet, and drawn out to the sink ball through the opening surface; and a rack arranged in the drawer, and arranged in the sink ball by moving along with the drawer when the drawer is drawn out. According to the present invention, when washing the dishes, the drawer is moved to an internal side of the sink ball to separate a foreign substance attached to the dishes through water of a faucet.
Patent KR-20180008956-A (KR)
Inventor: KWON JUNG HYUN
IPC: G11C16/10
Filed: 2016-07-14
Abstract: The present invention provides a non-volatile memory system capable of guaranteeing a life of a memory cell and a refresh method. According to an embodiment of the present invention, the non-volatile memory system comprises: a memory device including a plurality of non-volatile memory cells; and a controller composed to skip refresh for the memory cell having a history written in a refresh cycle among refresh target memory cells in response to a refresh command and a refresh address signal with respect to the memory device.
Patent KR-20180008004-A (KR)
Inventor: SEON YU IE
IPC: B65D5/42
Filed: 2016-07-15
Abstract: The present invention relates to a simple ashtray for a cigarette case. The purpose of the present invention is to solve an existing problem that people throw away cigarette butts on a road when having no ashtray by manufacturing an integrated disposable cigarette case in which a simple ashtray is combined with an existing disposable cigarette case so as to encourage people not to toss cigarette butts on a road. The simple ashtray for a cigarette case of the present invention comprises: a cigarette case body for easily storing a cigarette and carrying the same; a simple ashtray integrally accommodated in a lower end of an existing cigarette case to throw away cigarette butts therein; a slider formed by punching the lower end to open and close the simple ashtray to be able to push and close with a finger; an inner paper for the simple ashtray capable of extinguishing fire, suppressing smell and combined with a material such as aluminum; and a cigarette butt waste bin formed by punching a left side space of the simple ashtray to complement hygiene so as to throw away cigarette butts. Therefore, according to the present invention, it is possible to solve an existing problem that people throw away cigarette butts on a road when having no ashtray by manufacturing an integrated disposable cigarette case in which a simple ashtray is combined with an existing disposable cigarette case so as to encourage people not to toss cigarette butts on a road.
Patent KR-20180009857-A (KR)
Title: Display apparatus
Inventor: CHOI BEOM GYU
IPC: H01L51/52
Filed: 2016-07-19
Abstract: A window of a display device includes a front side part which includes first short sides extended in a first direction and facing each other in a second direction across the first direction, first long sides extended in the second direction and facing each other in the first direction and first curved sides extended from both sides of the first long sides and connected to both sides of the first short sides adjacent to the first long sides, lateral side parts extended from the first long sides and bent in a third direction across a plane in parallel to the first and second directions, and a rear side part extended from any one of the lateral side parts and arranged to face the front side part. Accordingly, the present invention can provide the display device with the window suitable for a four-side or three-side display.
Patent KR-20170021727-A (KR)
Title: Substrate processing apparatus and substrate processing method
Inventor: INAGAKI YUKIHIKO
IPC: H01L21/687
Filed: 2016-07-21
Abstract: The present invention relates to a substrate treating apparatus and method. A substrate is returned to an application treating unit by a return device, and the treatment is performed on a circular area on one side of the substrate. Afterwards, the substrate is put to an edge exposure portion by the return device, and a position of an outer circumferential portion on the substrate and a position of an inner circumferential portion of the circular area are detected. A dislocation between a center position of the substrate maintained on a spin chuck and a rotatory center of the spin chuck is calculated. Based on schedule management information, established is a relation between a direction of the substrate maintained by the spin chuck when the substrate is put to the application treating unit and a direction of the substrate maintained by a substrate rotatory unit when the substrate is put to the edge exposure portion. Based on such a relation, a dislocated direction of the center of the substrate maintained in the spin chuck based on the rotatory center of the spin chuck is determined.
Patent KR-20180010673-A (KR)
Inventor: YU JAE DO
IPC: H02M1/08
Filed: 2016-07-22
Abstract: The present invention relates to a converter capable of cutting off a switch quickly. The converter comprises: a gate driver generating a switch driving signal for switching control of a switching part; and an overcurrent detection part generating an overcurrent control signal based on a detected voltage detected from one side of the switching part. The gate driver can cut off an output of the switch driving signal in accordance with the overcurrent control signal.
Patent KR-20180014908-A (KR)
Inventor: YOO EUI SANG
IPC: H01M2/10
Filed: 2016-08-01
Abstract: The present invention relates to a battery storage type wearable band capable of housing a battery in a simple way and improving the elasticity of the band. The battery storage type wearable band comprises: a band part; a rotary tightening part formed on one surface of the band part; and a tightening wire connected to the rotary tightening part, wherein a battery is provided in the rotary tightening part.
Patent KR-20180016835-A (KR)
Inventor: KIM EUN JONG
IPC: A61Q19/00
Filed: 2016-08-08
Abstract: The present invention relates to a cosmetic nanoliposome composition containing peptides for inhibiting degradation of collagen and, more specifically, to a cosmetic composition which has low turbidity when containing peptides, contains peptides for inhibiting degradation of collagen as nanoliposome in a stable formulation and has excellent skin absorption. The cosmetic composition of the present invention contains effective components in nanoliposome which is the stable size, thereby being good for skin care and having low cytotoxicity and excellent storage properties. The present invention further relates to a method for manufacturing the cosmetic nanoliposome composition containing high-content effective components.
Patent KR-20180018874-A (KR)
Inventor: LEE WOO YEOL
IPC: G01R1/067
Filed: 2016-08-09
Abstract: Disclosed is a probe for an inspecting device for inspecting electrical features of an inspected object. The probe comprises: a barrel configured to form a flowing space in a longitudinal direction wherein the barrel has a shaft-diameter stop end; and a conductive ball accommodated in the flowing space of the barrel wherein the conductive ball protrudes through the shaft-diameter stop end. Therefore, contamination of a tip accumulated in case of inspection is prevented since the conductive ball of the probe is rotated by rolling so that durability can be improved.