baber/WOPTO huggingface dataset:
Patent KR-20020050642-A (KR)
Title: Apparatus for the cover of hood ratch cover
Inventor: LEE BONG CHU
IPC: B62D25/12
Filed: 2000-12-21
Abstract: PURPOSE: Structure for installing a hood latch cover in a vehicle is provided to simplify mounting structure of a protect cover by removably installing a coupler and to improve workability. CONSTITUTION: Structure for mounting a hood latch cover of a vehicle comprises a main lock(52) forming a hood latch; an auxiliary lock(54) mounted corresponding to the main lock by having a hook shape; a safe lock(56) connected to the main lock and the auxiliary lock by a spring to lock or unlock a vehicle hood; a cover bracket(58) having a square plate shape; plural combining protrusions(581) formed in the middle of the cover bracket; an inserting hole(582) mounted on a lower middle portion of the cover bracket; a protect cover having a case shape of a T type; a latch actuating hole formed on an upper portion of the protect cover; a safe lock fixing groove installed on a lower end portion of the protect cover; and a coupler arranged on an inner portion of the protect cover. Thereby, the structure for mounting the hood latch cover of the vehicle simplifies mounting structure of the protect cover by removably installing the coupler.
Patent KR-20020052579-A (KR)
Title: Capillary Structure for Bonding Wire of Semiconductor Chip
Inventor: OH HYEON CHEOL
IPC: H01L21/60
Filed: 2000-12-26
Abstract: PURPOSE: A capillary structure for a wire bonding of semiconductor chips is provided to reduce a manufacturing cost by installing a magnetic ink capable of optically writing the wire bonding number. CONSTITUTION: A capillary structure additionally comprises a magnetic ink part(5) fixed on a defined portion of a capillary(3) for optically sensing the wire bonding number, and a wire bonding apparatus(7). The wire bonding apparatus further includes a reader(6) for reading the wire bonding number written in the magnetic ink part(5). At this point, one wire bonding number is written in the magnetic ink part(5) according to one up and down motion of the capillary(3), thereby efficiently using the capillary to a maximal life time.
Patent KR-20020053433-A (KR)
Title: Circulation System And Method For Gift Certificate of Tonic
Inventor: AHN GEON
IPC: G06Q50/22
Filed: 2000-12-27
Abstract: PURPOSE: An analeptic certificate service system and method is provided to enable a certificate recipient to take a medical examination for prescribing analeptic appropriate according to a constitution and a health condition. CONSTITUTION: The method comprises steps of a user accessing a service web site(S21), the user purchasing a desired analeptic certificate by selecting the kind of herbs and constitution or health condition check up service according to a menu offered by a server of the service web site(S22), the user designating a destination, a date and a recipient for delivering the certificate, and paying for the certificate(S23), the certificate recipient accessing the web site, inputting a serial number or an identification number printed on the certificate, the server authenticating the certificate based on the input number, and the server checking if the certificate includes a health condition check up service(S25), the recipient taking the health condition check up service and purchasing the analeptic according to the health condition if the certificate includes the health condition check up service(S26), the server transmitting the purchase specification to an analeptic supplier and the analeptic supplier delivering the ordered analeptic to the certificate recipient(S27), and the certificate recipient purchasing the analeptic without the health condition check up if the certificate does not the health condition check up service(S28).
Patent KR-20020054388-A (KR)
Title: Apparatus and method for collision detection by using parity in common data bus
Inventor: KIM BYEONG SEON
IPC: H04L12/413
Filed: 2000-12-28
Abstract: PURPOSE: A collision detection apparatus using parity in common data bus and a method thereof are provided to transmit data and parity simultaneously when transmitting data in a common data bus, receive these and then detect parity, thereby capable of detecting the existence of collision. CONSTITUTION: An MAC(Media Access Control) control unit(10) transmits/receives data and processes MAC frame data according to a collision signal detected from a data collision processing unit(20). The data collision processing unit(20) transmits/receives data between the MAC control unit(10) and a bus, produces the collision signal by using data and parity received from the bus and transmits the signal to the MAC control unit(10). A buffer unit(30) performs the buffering of data and parity when transmitting/receiving data between the data collision processing unit(20) and the bus.
Patent KR-20020055250-A (KR)
Title: Method of manufacturing a capacitor in semiconductor device
Inventor: CHO HO JIN
IPC: H01L27/108
Filed: 2000-12-28
Abstract: PURPOSE: A method for fabricating a capacitor of a semiconductor device is provided to improve thermal stability of the capacitor, by reoxidizing TaOx in a barium, strontium and titanium(BST) deposition process and a heat treatment process while O2 passing through BST is consumed so that O2 is not diffused to a lower electrode. CONSTITUTION: An insulation layer is formed on a semiconductor substrate(1) having a predetermined structure. A predetermined region of the insulation layer is etched to form a contact hole exposing a predetermined region of the semiconductor substrate. The contact plug is formed to fill the contact hole. The lower electrode(8) is formed on the contact plug. Ta2O5(9) is deposited on the lower electrode. A plasma treatment process is performed to form the TaOx and the BST is deposited on the TaOx. A rapid thermal process is performed to reduce the TaOx to Ta2O5 so that a dielectric layer of a stack structure is formed. An upper electrode is formed on the dielectric layer.
Patent KR-20020059061-A (KR)
Title: Acrylic cationic electrodeposition paint compositions
Inventor: BAEK SEUNG JAE
IPC: C09D133/08
Filed: 2000-12-30
Abstract: PURPOSE: Provided is one-component type acryl-based cation electrodeposition paint composition, which is excellent in UV stability, gloss keeping force, and yellowing resistance and can be cured at low temperature and dose not contain heavy metal components. CONSTITUTION: The acryl-based cation electrodeposition paint composition contains: 40-60wt%(based on the total amount of the composition) of an acryl cation electrodeposition resin containing a primary hydroxy group and a quaternary sulfonium salt; 10-20wt%(based on the total amount of the composition) of a polyurethane crosslinking agent produced by reacting isophorone diisocyanate, isolated by methyl ethyl ketoxime, and trimethylol propane; 10-20wt%(based on the total amount of the composition) of a polyurethane crosslinking agent produced by reacting epsilon-caprolactam and hexamethylene diisocyanate or a buret compound thereof. The acryl cation electrodeposition resin contains essentially 7-13wt%(based on the total amount of the resin) of hydroxy acrylate, 4-10wt%(based on the total amount of the resin) of glycidyl methacrylate, 6-15wt%(based on the total amount of the resin) of a sulfide compound, and 0.5-1mol(based on the sulfide compound of 1mol) of an organic acid.
Patent KR-20010023190-A (KR)
Title: 무한궤도 장갑 차량의 재구성 및 변형 방법과 하부 동체구조체
IPC: B62D21/18
Filed: 1998-08-11
Abstract: 본 발명은 생산성 및 지뢰 폭발 파편으로부터의 보호성을 향상시키도록 군인 운반형 무한궤도 장갑 차량을 재구성하는 방법에 관한 것이다.  본 발명의 구성 및 변형을 사용함으로써, 지뢰 폭발 보호성, 차량의 장애물 통과 능력 및 크로스 컨트리 이동성이 향상된다.
Patent KR-20010031444-A (KR)
Title: 실리콘 단결정 웨이퍼의 제조방법 및 실리콘 단결정 웨이퍼
IPC: H01L21/322
Filed: 1999-08-27
Abstract: CZ법으로 제조된 실리콘 단결정 웨이퍼의 표층에 있는 그로운-인 결함을 효율적으로 저감 또는 제거함으로써, 고품질의 반도체 디바이스용 실리콘 단결정이 고생산으로 얻어진다. 본 발명은, 실리콘 단결정 웨이퍼의 제조방법에 있어서, 쵸크랄스키법에 의해 실리콘 단결정 잉곳을 육성하고, 그 단결정 잉곳을 웨이퍼로 슬라이스하고, 그 웨이퍼에 1100~1300℃의 온도에서 1분 이상 비-산화성 분위기하에서의 열처리를 적용한 다음, 웨이퍼를 700℃ 이하의 온도로 냉각하지 않고, 이어서 산화성 분위기하에서 1분 이상 동안 700~1300℃의 온도에서 열처리하는 것을 포함하는 실리콘 단결정 웨이퍼의 제조방법을 제공한다. 본 발명은 또한, CZ 실리콘 단결정 웨이퍼에 있어서, 표면에서 부터 5㎛까지의 두께인 표층내에 크기가 0.09㎛ 이상인 COPs의 밀도가 1.3 COPs/㎠ 이하이고, 상기 표층 이외의 벌크부에서 크기가 0.09㎠ 이상인 COPs의 밀도가 표층의 COPs밀도보다 큰 것을 특징으로 하는 CZ실리콘 단결정 웨이퍼를 제공한다.
Patent KR-20010032394-A (KR)
Title: Method for depositing fine-grained alumina coating on cutting tools
IPC: B23B27/14
Filed: 1998-11-26
Abstract: A method for depositing refractory alumina (A2O3) thin layers on cutting tools made of cemented carbide, cermet, ceramics or high speed steel is disclosed. The present method is a Plasma Activated Chemical Vapor Deposition (PACVD) process in which the plasma is produced by applying a bipolar pulsed DC voltage across two electrodes to which the tool substrates to be coated are fixtured and electrically connected. In contrast to prior art methods, built-up electrical charge on non-conducting surfaces is suppressed and hence, no arcing occurs on said surfaces. This will permit stable, long-term processing, With the present method, high-quality coatings of either single phase gamma-Al2O3 or of a mixture of gamma- and alpha-Al2O3 phases can be deposited on cutting tools at deposition temperatures as low as 500 DEG  C. When coated cemented carbide tools according to the invention are used in the machining of steel or cast iron, several important improvements to prior art produced Al2O3-coated tools have been observed.
Patent KR-20010074436-A (KR)
Title: 연료 공급 장치
IPC: F02M37/50
Filed: 1999-11-25
Abstract: 본 발명은 전기 모터(10)에 의해 구동되는 이송 펌프(8)와 상기 전기 모터(10)를 수용하는 하우징(11)이 제공된 연료 공급 장치에 관한 것으로, 여과 장치(9, 19)는 상기 이송 펌프(8)의 연료 흐름의 상류 및/또는 하류에 연결된다. 상기 이송 펌프(8)는 필터 포트(filter pot) 안에 있는 중앙 리세스를 통해 연료의 주흐름을 상기 여과 장치(9, 19)의 메인 필터(9)의 유입구 쪽으로 이송한다. 예비 스테이지로서 작용하는 한쪽이 개방된 사이드 채널 펌프는 이송 펌프(8)상에 제공된다. 연료는 상기 사이드 채널 펌프에 대해 전필터(19; pre-filter)로부터 상승 파이프(37) 쪽으로 이송되고 거기서부터 포트 하우징(40) 안으로 메인 스테이지(28)의 흡입 영역으로 이송된다.
Patent KR-20010074665-A (KR)
Title: 강대의 인산염 처리시의 피막중량 제어방법
IPC: C23C22/17
Filed: 1999-02-20
Abstract: 아연이온 1 ∼ 6 g/l와 인산이온 10 ∼ 30 g/l을 함유한 인산염 처리액을 사용하여, 한쪽면 혹은 양면에 아연도금된 강대를 인산염 처리할 때에 피막중량을 제어하는 방법에 있어서, 인산염 처리액중에서의 Fe(II) 이온의 함량을 3 ∼ 100 mg/l의 범위내로 설정하는 것을 특징으로 하는, 아연도금된 강대의 인산염 처리시의 피막중량의 제어방법. 
     Fe(II) 함량이 높을수록 피막중량은 감소한다. Fe(II) 함량이 3 ∼ 20 mg/l 변화하면 피막중량은 약 0.1 g/m 2 변화한다.
Patent KR-20010041751-A (KR)
Title: 밀봉제 넣은 타이어의 제조 방법 및 밀봉제 넣은 타이어
IPC: B29C73/22
Filed: 1999-02-08
Abstract: 타이어 본체(1) 및 인너라이너(2)를 중합한 생 타이어(24)를 상형(29) 및 하형(30)내에 설치하고, 내측으로부터 브라자(31)를 공기압으로써 팽창시켜 가황 성형을 행한다. 이 때 한쪽 면만에서 이형성을 가지는 불소 수지 시트등의 이형 시트(9)를, 그 이형성을 갖는 면을 인너라이너(2)에 대향시켜 타이어 본체(1)와의 사이에 끼움으로써, 인너라이너(2)가 타이어 본체(1)에 가황 접착되는 것을 방지하고, 거기에 밀봉제를 충진하기 위한 밀봉제실을 정확한 형상으로 형성할 수 있다. 이형 시트(9)를 밀봉제에 용해하는 재질로서 구성하면, 밀봉제실에 잔류한 이형 시트(9)에 의한 밀봉성의 저하를 회피할 수 있다.
Patent KR-20010042742-A (KR)
IPC: C09J7/02
Filed: 1999-03-30
Abstract: To provide a pressure sensitive adhesive composition which can show good adhesive strength and holding characteristics within a wide temperature range from ultra-low temperature to high temperature without causing environmental problems. A pressure sensitive adhesive composition comprising a random copolymer of isobutylene and paramethylstyrene, and a tackifier, wherein said random copolymer contains 1 to 20 % by weight of said paramethylstyrene and has a cross-linked structure.
Patent KR-20010043068-A (KR)
Title: 점성과 무관한 유압반작용 마스터실린더
IPC: B60T11/18
Filed: 1999-05-10
Abstract: 본 발명은 유압반작용 마스터실린더에 관한 것인데, 작동챔버(12)로 구성되어 있으며, 이 챔버 내부에서, 중공의 주피스톤(13)이 미끄러지고 있고, 이 피스톤의 내부에서, 반작용피스톤(14)이 반작용챔버(15)를 한정하며, 이 반작용챔버는 적어도 하나의 역지밸브(22) 및 제한부(17)를 통해 작동챔버(12)와 연통한다. 
     본 발명에 따르면, 역지밸브(22) 및 제한부(17)는 제동유체의 점성이 과도하게 높을 때, 반작용챔버에서의 압력이 상승하는 결점을 회피하기 위하여 주피스톤(13)에 대하여 이동할 수 있도록 장착되어 있다.
Patent KR-20010043321-A (KR)
Title: 폴리비닐 부티랄과 폴리비닐 클로라이드의 중합체 블렌드
IPC: C08L51/00
Filed: 1999-05-06
Abstract: 본 발명은 폴리비닐 클로라이드, 상용화제로서의 에틸렌 기재 공중합체, 무기 충전제, 및 생원료 또는 재생 폴리비닐 부티랄 약 5 내지 95 중량%를 포함하는 신규 조성물에 관한 것이다.  이 신규 조성물의 제조 방법도 또한 제공된다.
Patent KR-20010052727-A (KR)
IPC: C09C1/50
Filed: 1999-06-09
Abstract: The present invention provides processes for introducing a fluid stream into a carbon black reactor and for producing carbon black. According to the present invention, a fluid stream comprising an oxidant, nitrogen, hydrogen, a hydrocarbonaceous material or mixtures thereof is introduced into the effluent flowing through a carbon black reactor in an axial direction.
Patent KR-20020057706-A (KR)
Inventor: KIM TAE YEONG
IPC: F25D11/00
Filed: 2001-01-05
Abstract: PURPOSE: A direct cooling type refrigerator is provided to easily install an accumulator to reduce influence of temperature of an evaporator on the accumulator and to reduce noise generated in the accumulator. CONSTITUTION: A refrigerator includes a first storage compartment(107) and a second storage compartment(107') surround by foam(114); and an accumulator(120) installed on an end of the foam formed between the first storage compartment and the second storage compartment in longitudinal direction to reduce influence of an evaporator. Ratio of height of an orifice hole and an inner pipe in the accumulator is from 15/54 to 33/54 to reduce noise.
Patent KR-20020059969-A (KR)
Title: method for providing multimedia service
Inventor: AHN YONG HYEON
IPC: G06F17/00
Filed: 2001-01-09
Abstract: PURPOSE: A method for supplying a multimedia service is provided to transmit a partial multimedia including a specific image to a specific group by extracting the partial multimedia according to various conditions in multimedia contents being streamed in real time. CONSTITUTION: A service server performs a service registration with respect to a specific group(an association of like-minded persons, club, and a party)(S1). The service server stores a keyword for displaying a characteristic of each group being service-registered and other keyword, and a user terminal number of each member(S2). At least one Full-Multimedia is streamed to a specific user terminal from a cooperated server or a service server(S3). The service server judges whether a Partial-Multimedia is extracted from the Full-Multimedia streamed from the cooperated server(S4). The service server extracts and collects a Partial-Multimedia of a partial length in the Full-Multimedia(S5). The service server transmits the extracted and collected Partial-Multimedia to user terminals of each member possessed in a fixed specific group(S6).
Patent KR-20020060438-A (KR)
Title: fan with multi flow passage and structure of cool air passage with it in refrigerator
Inventor: JUNG YONG GYU
IPC: F25D17/06
Filed: 2001-01-11
Abstract: PURPOSE: A mixed passage fan and structure of cold passage of refrigerator applying the same are provided to improve efficiency and to reduce noise. CONSTITUTION: A mixed passage fan(20) comprises an axial flow fan(21) comprising a hub(22) joined to a rotary axis of a motor and a plurality of rotary blades(23) formed on a periphery of the hub in radial direction to discharge air in axial direction; and a turbo fan(25) connected with the hub and comprising a plurality of rotary blades(26), whose number is greater than number of the rotary blades of the axial flow fans, separated from tips of the axial flow fan to discharge air in radial direction.
Patent KR-20020061802-A (KR)
Title: Prism Diffuser
Inventor: KIM MAN SEOK
IPC: G02B5/04
Filed: 2001-01-18
Abstract: PURPOSE: A prism diffuser for diffracting and diffusing a light beam is provided to diffract the light beam at a wide viewing angle with keeping a directionality of the light beam by forming a first diffusion structure in the form of unevenness below the order of micron on each of the uneven surface of diffraction structure, thereby illuminating brightly with a low power when the prism diffuser apply to a liquid crystal display or an outdoor advertisement panel. CONSTITUTION: A plasma diffuser includes a base(1) made of a material for transmitting and reflecting a light beam, a diffraction structure(2) for diffracting the light beam and a first diffusion structure(3) for diffusing the light beam. The diffraction structure(2) is formed below the order of micron in such a way that each surface of the diffraction structure(2) is connected to adjacent one with parallel to each other with respect to one direction. The first diffusion structure(3) is formed below the order of micron being smaller than that of the diffraction structure(2) on each of the uneven surface of diffraction structure(2), thereby diffusing the light beam with an elliptical shape.
Patent KR-20010078019-A (KR)
Title: Heat-resistant glass fiber and process for the production thereof
Inventor: TAMURA SHINICHI
IPC: C03C13/00
Filed: 2001-01-19
Abstract: PURPOSE: To provide an inexpensive heat resistant glass fiber suitably used for an automobile muffler or the like, excellent in he at resistance and easy in spinning, and to provide its manufacturing method. CONSTITUTION: The heat resistant glass fiber consists of a siliceous glass having a glass composition containing substantially, by weight, 56-58% SiO2, 12-17% Al2O3, 16-27% CaO, 1-9% MgO, 0-1% Na2O and 0-1% K2O and no B2O3 and F2 so that the surface layer part contains >= 90 wt.% SiO2. The glass fiber is manufactured by treating the surface of the glass fiber having the composition with a mineral acid.
Patent KR-20020066662-A (KR)
Inventor: KIM DAE CHEOL
IPC: C12R1/19
Filed: 2001-02-13
Abstract: PURPOSE: Provided is a process for producing L-threonine which a kind of essential amino acids, and used as a feed or a food additive by using a microorganism. CONSTITUTION: The process for producing L-threonine is characterized by additionally inserting at least one copy of phosphoenol pyruvate carboxylase(ppc) gene and threonine operon into a specific site of chromosomal DNA, except phosphoenol pyruvate carboxylase(ppc) gene and threonine operon originally existing on a chromosomal DNA of a microorganism, E. coli TF4076(KFCC 10718). E.coli pGmTN-PPC12(KCCM 10236) transformed with a recombinant plasmid pGmTN-PPC produces L-threonine.
Patent KR-20020067813-A (KR)
Title: Liquid crystal display device adapt to a view angle
Inventor: MUN SEUNG HWAN
IPC: G09G3/36
Filed: 2001-02-19
Abstract: PURPOSE: An LCD(Liquid Crystal Display) device for adaptation to viewing angle is provided to control a gray level according to the variation of viewing angle by recognizing a viewing angle of an LCD device and determining a liquid crystal gamma curve. CONSTITUTION: A driving voltage generation unit(100) outputs a first voltage and a second voltage on the ground of an input power. A voltage separation unit(200) transforms a level of the first voltage according to a viewing angle of an LCD panel(450) and outputs a third voltage. A viewing angle generation unit(300) outputs viewing angle information on the ground of the second voltage and the third voltage. A gamma curve determination unit(400) selects a liquid crystal gamma curve corresponding to the viewing angle information and controls a gray level through a gamma voltage value.
Patent KR-20020079956-A (KR)
Title: Method for producing a sheet with high smooth and low gloss
Inventor: LEE DEOK YEONG
IPC: D21G1/02
Filed: 2001-03-08
Abstract: PURPOSE: A process of preparing low gloss coated paper by forming small sized concave or convex on paper which passes through a calendering process to prevent glare of the coated paper surface is provided. Therefore, the replacement of at least one roll without the change of conventional calendars leads to produce coated paper having high smoothness and low gloss and improve productivity. CONSTITUTION: A small sized concave or convex having a diameter of 0.001 to 200 micron and a depth of 0.1 to 50 micron is formed on the surface of at least one roll of a calendar containing a plurality of rolls used in a calendering process to form roughness on paper which passes though the calendering process in the process for preparing coated paper. The concave or convex has at least one shape selected from round shape, square shape and fan shape.
Patent KR-20020072685-A (KR)
Title: Variable type steering controlled system of hybrid electric vehicle and thereof method
Inventor: KIM YEONG ROK
IPC: B62D5/04
Filed: 2001-03-12
Abstract: PURPOSE: A variable steering control unit of an HEV(Hybrid Electric Vehicle) and the method are provided to perform power steering with operated according to input of an electric steering control signal from an engine control unit and supporting steering force of a steering wheel. CONSTITUTION: A variable steering control unit of an HEV includes a steering angle-detecting sensor(50), an engine control unit(60), and an electric variable steering unit(30). The steering angle detects movement of a steering wheel of the HEV and outputs the relevant signal. The engine control unit outputs an electric steering control signal if the HEV is steered according to the movement of the detected steering wheel. The electric variable steering unit supports steering force of the steering wheel and performs power steering, with operated according to the input of the electric steering control signal supplied from the engine control unit.
Patent KR-20020074309-A (KR)
Title: System for network-based binding product selling service using a purchasing and use profit of mobile phone
Inventor: YOO IN GEUN
Filed: 2001-03-20
Abstract: PURPOSE: A commodity sale service system is provided to give a user a commodity free of charge when the user buys a mobile phone or a PDA(Personal Digital Assistant) and to offset the price of the commodity with a ratio of a usage fee of the mobile phone or the PDA. CONSTITUTION: The system comprises steps of establishing a cooperation relation among a credit company, a mobile communication service provider and a general user on selling commodities associated with a purchase and a usage of a mobile communication device(S100), applying a minus milage when the user buys a mobile communication device while the user offers necessary data, for example, credit card data, a desired number of the mobile communication device and selects a specific desired commodity, delivering the selected commodity to the user free of charge, and at the same time transmitting the applied minus milage data to the credit company and the mobile communication service provider(S200), and receiving a certain ratio of a usage fee of the mobile communication device from the mobile communication service provider and offsetting a minus milage corresponding to the original price of the commodity given to the user free of charge(S300). The user pays the usage fee of the mobile communication device with a credit card, and a certain ratio of the usage fee is transferred to the sale service provider until the original price of the commodity is completely offset.
Patent KR-20020075978-A (KR)
Title: Diamond film depositing apparatus using microwave and plasma
Inventor: CHOE WAYE H
IPC: C23C16/27
Filed: 2001-03-26
Abstract: PURPOSE: An apparatus is provided which deposits a diamond thin film on the surface of a sample using plasma and electromagnetic wave such as ultra high frequency or microwave is provided. CONSTITUTION: In a microwave-plasma diamond coating apparatus using radio wave including ultra high frequency or microwave, the apparatus for depositing a diamond thin film using microwave and plasma comprises a rectangular waveguide(125), a mode transition coupler(120), an antenna rod(130), a quartz bell jar(140), a sample holder(116), a microwave cavity resonator(112), a source gas inflow ring(160), a mechanical support cylinder(164), a cooling jacket(165), gas inlet and outlet pipes(172,174) and a vacuum sealing(190), wherein the microwave cavity resonator(112) is formed in a cylindrical shape radius of which is gradually reduced as it goes from the upside to the downside or a semi-spherical shape a diameter part of which is directed to upward, the sample holder(116) comprises a disk plate(115), a hollow support pipe(182) and a water cooling means, and the water cooling means comprises a cooling water cavity(150), a cooling water inlet pipe(180) and a sample cooling water outlet pipe(181).