中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

368 records (took 0.031 seconds)

    CATHODE FOR ELECTRON TUBE
    61.
    发明专利
    CATHODE FOR ELECTRON TUBE 失效

    公开(公告)号：JP2001345041A

    公开(公告)日：2001-12-14

    申请号：JP2000164581

    申请日：2000-06-01

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： OHIRA TAKUYA ,  TERAMOTO HIROYUKI ,  FUKUYAMA KEIJI ,  SAITO KIYOSHI

    IPC: H01J1/20 ,  H01J1/142 ,  H01J1/26 ,  H01J29/04

    Abstract: PROBLEM TO BE SOLVED: To restrain fluctuations of cutoff voltage by realizing a high current density in a cathode for electron tube, and suppress changes of luminance. SOLUTION: The main component of the cathode for the electron tube is made by nickel. On a substrate which contains at least a kind of reducer, a porous metal layer is formed that has tungsten as the main component and that has the thickness of 80 μm or less, and the porosity of 20 to 70%, and further an electron emission substance layer is equipped that has alkaline-earth metal oxides as the main component containing at least barium.

    CATHODE FOR ELECTRON TUBE
    62.
    发明专利
    CATHODE FOR ELECTRON TUBE 失效

    公开(公告)号：JPH11195365A

    公开(公告)日：1999-07-21

    申请号：JP29744798

    申请日：1998-10-20

    Applicant: SAMSUNG DISPLAY DEVICES CO LTD

    Inventor： KIN SUKKUKI ,  SHIN SHOUKKU ,  BEE TETSUKAN ,  CHO KYONIN

    IPC: H01J1/20 ,  H01J1/142 ,  H01J1/144 ,  H01J9/04

    Abstract: PROBLEM TO BE SOLVED: To provide a cathode having high current density of an electron beam by forming an electron emitting substance layer mainly composed of alkaline earth metal oxide or the base metal mainly composed of nickel, and laying/ forming/heating rare earth metal or a rare earth metal compound on the surface of the electron emitting substance layer. SOLUTION: An electron emitting substance layer 12 is laid/formed on the upper surface of the base metal 11 by supporting the base metal 11 by a cathode support stand. An electron beam control grid 14 forming an electron beam passing hole is formed in front of the electron emitting substance layer 12 so that a heater 13 to heat a base board is arranged on the inside surface of the base metal 11. Here, the base metal 11 contains a small quantity of magnesium and silicon by being mainly composed of nickel, and the electron emitting substance layer 12 is desirably composed of oxide of alkaline earth metal such as Ba, Sr and Ca. A rare earth metal compound 15 is laid/formed on the surface of the electron emitting substance layer 12. Therefore, an electron having high electric current density is emitted from a cathode for an electron tube.

    CATHODE FOR ELECTRON TUBE
    65.
    发明专利
    CATHODE FOR ELECTRON TUBE 失效

    公开(公告)号：JPH08124476A

    公开(公告)日：1996-05-17

    申请号：JP2486595

    申请日：1995-02-14

    Applicant: SAMSUNG ELECTRONIC DEVICES

    Inventor： SHIYU KEIKUSU ,  SAI SHIYOUSHIYO ,  KIN KONBAI ,  RI MITSUTOSHI ,  SAI KISHIYAKU

    IPC: H01J1/14 ,  H01J1/142 ,  H01J1/20 ,  H01J1/28

    Abstract: PURPOSE: To provide a negative electrode for an electron tube which improves significantly shortening the life, which is a problem with existing oxide negative electrodes and, at the same time, can be manufactured by a method which is 100% compatible with a manufacturing process of the existing negative electrodes. CONSTITUTION: In a negative electrode for an electron tube wherein an electron emitting material layer 1 is formed on a metallic substrate 2 made of nickel as a principal component, the electron emitting layer 1 contains: a metallic oxide of alkaline earth which is obtained from the dissociation of a carbonate of alkaline earth metal containing barium as a principal component; and a La compound and a Mg compound, or a La-Mg compound. With this configuration, a manufacturing process of the electrode so described is 100% compatible with those for existing electrodes and further the life of the electrode is improved by over 15 to 20% from those of conventional oxide electrodes.

    OXIDE CATHODE
    66.
    发明专利
    OXIDE CATHODE 失效

    公开(公告)号：JPH04259725A

    公开(公告)日：1992-09-16

    申请号：JP27234891

    申请日：1991-10-21

    Applicant: PHILIPS NV

    Inventor： PETORASU YAKOBUSU ANTONIUSU MA

    IPC: H01J1/14 ,  H01J1/142 ,  H01J1/20

    Abstract: PURPOSE: To enhance the initial radiation and lengthen the life by containing the specified ratio of the number of rare earth atoms to the number of alkali earth atoms in an electron radiation material, and uniformly distributing the rare earth atoms on the upper side of the radiation material layer. CONSTITUTION: A cathode 1 consists of a cap 7 essentially containing nickel and a cylindrical nichrome cathode shaft 3, and is covered with an electron radiation material layer 2 having an alkali earth metal oxide, barium, and a rare earth metal. The rate of the number of alkali earth metal atoms to the number of rare earth metal atoms in the radiation material is 10-500ppm, and the rare earth metal atoms are uniformly distributed on the upper side of a radiation material layer 2. By adding a small amount of rare earth metal to the layer 2 of the cathode having barium oxide and strontium oxide, the initial radiation is enhanced, and the life is lengthened.

    DISPENSER CATHODE
    67.
    发明专利
    DISPENSER CATHODE 失效

    公开(公告)号：JPH03173036A

    公开(公告)日：1991-07-26

    申请号：JP30593990

    申请日：1990-11-09

    Applicant: SAMSUNG ELECTRONIC DEVICES

    Inventor： TEI SHIYOUJIN ,  SAI SHIYOUSHIYO ,  RO KANTETSU ,  SHIYU KEIKUSU

    IPC: H01J1/14 ,  H01J1/142 ,  H01J1/28

    Abstract: PURPOSE: To obtain a stable electron emitting characteristic even at a low temperature by forming an alloy thin film layer composed of scandium tungstate and W between an electron emitting substance and a porous metallic base body. CONSTITUTION: An alloy thin film layer composed of scandium tungstate and W is formed between an electron emitting substance and a porous metallic base body. A storage tank 3b and a sleeve 4b are formed of high melting point metal such as Mo and Ta, and the electron emitting substance 2b is a compression molding formed of barium calcium alminate, and the alloy thin film layer 6d is an alloy coating layer formed of scandium tungstate (Sc2 W3 O12 or Sc6 WO12 ) and W. Therefore, a stable and persistent thermoelectron can be emitted even at a low temperature through sufficient supply of scandium.

    STABLE METAL OXIDE CATALYSTS FOR METAL OXIDE LASER IONIZATION-MASS SPECTROMETRY
    68.
    发明申请
    STABLE METAL OXIDE CATALYSTS FOR METAL OXIDE LASER IONIZATION-MASS SPECTROMETRY 审中-公开
    稳定的金属氧化物催化剂用于金属氧化物激光离子质谱

    公开(公告)号：WO2015168337A1

    公开(公告)日：2015-11-05

    申请号：PCT/US2015/028368

    申请日：2015-04-29

    Applicant: COLORADO SCHOOL OF MINES

    Inventor： VOORHEES, Kent J. ,  COX, Christopher R.

    IPC: C01F1/00 ,  C01F17/00 ,  C23C30/00 ,  H01J1/14 ,  H01J1/142 ,  H01J1/148 ,  H01J27/02 ,  H01J27/24 ,  H01J49/26

    CPC classification number: C23C30/00 ,  G01N30/72 ,  G01N33/56911 ,  G01N2560/00 ,  H01J49/0418

    Abstract: Oxides of lanthanide metals are used to create stable surfaces for use in laser desorption ionization mass spectrometry. The disclosed lanthanide metal oxide surfaces are used to identify and characterize fatty acids from microorganism allowing profiling of the microorganism to the strain level, including antibiotic resistance. Cerium oxide, CeO2, was used to create a stable surface for obtaining fatty acid profiles of bacterial pathogens. Cross validation of results obtained using the disclosed methods, systems, and surfaces, demonstrated greater than 95% accuracy that did not suffer long-term degradation. Bacteria were identified by the disclosed methods, systems, and surfaces with greater than 98% at the species level and 96% at the strain level. Comparisons with existing technologies demonstrate that the presently disclosed methods, systems, and surfaces provide for surprisingly enhanced accuracy and reliability in profiling and identification.

    Abstract translation: 镧系金属的氧化物用于制造用于激光解吸电离质谱的稳定表面。 所公开的镧系元素金属氧化物表面用于鉴定和表征来自微生物的脂肪酸，允许将微生物描绘到菌株水平，包括抗生素抗性。 使用氧化铈CeO 2来产生稳定的表面以获得细菌病原体的脂肪酸谱。 使用公开的方法，系统和表面获得的结果的交叉验证显示出不会遭受长期退化的大于95％的准确度。 通过公开的方法，系统和表面鉴定细菌，在物种水平上具有大于98％的表达，在应变水平上鉴定出96％的细菌。 与现有技术的比较表明，目前公开的方法，系统和表面提供了令人惊奇的增强的分析和识别中的准确性和可靠性。

Patent Agency Ranking