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    • 3. 发明授权
    • Electron gun
    • 电子枪
    • US08669535B2
    • 2014-03-11
    • US13322025
    • 2010-04-14
    • Mikio IchihashiTakashi OnishiShunichi WatanabeKeiji Tamura
    • Mikio IchihashiTakashi OnishiShunichi WatanabeKeiji Tamura
    • H01J1/50
    • H01J37/063H01J37/073H01J37/141H01J2237/06316H01J2237/06341H01J2237/065H01J2237/26
    • The present invention has an object to provide a cold cathode field-emission electron gun with low aberration, to thereby provide a high-brightness electron gun even in the case of a large current. The present invention provides a field-emission electron gun which extracts an electron beam from a cathode and converges the extracted electron beam, the field-emission electron gun including: a magnetic field lens which is provided such that the cathode is disposed inside of a magnetic field of the lens; and an extraction electrode for extracting electrons from the cathode, the extraction electrode being formed into a cylindrical shape without an aperture structure. The present invention can provide an electron gun having a function of converging an electron beam using a magnetic field, the electron gun which is capable of reducing an incidental electrostatic lens action and has small aberration and high brightness.
    • 本发明的目的是提供一种具有低像差的冷阴极场致发射电子枪,从而即使在大电流的情况下也提供高亮度电子枪。 本发明提供一种场致发射电子枪,其从阴极提取电子束并使所提取的电子束会聚,该场发射电子枪包括:磁场透镜,其被设置为使得阴极设置在磁性 镜头领域; 以及用于从阴极提取电子的引出电极,所述引出电极形成为没有孔结构的圆筒形状。 本发明可以提供一种电子枪,其具有使用磁场会聚电子束的功能,该电子枪能够减少偶然的静电透镜作用并且具有小的像差和高亮度。
    • 5. 发明授权
    • Method and specific diagnostic system for objectively assessing and monitoring the relative homeostasis and health of animals
    • 用于客观评估和监测动物相对稳态和健康的方法和具体诊断系统
    • US06333160B1
    • 2001-12-25
    • US08041428
    • 1993-03-31
    • Keiji Tamura
    • Keiji Tamura
    • G01N3353
    • G01N33/68
    • A method for objectively assessing and monitoring the relative health and homeostatic balance of a group of animals or the individual animals in the group as a basis for animal management decisions is provided. The objective assessment and monitoring method quantitatively determines the upper limit of normal for &agr;1-acid glycoprotein values in a selected body fluid of a selected species of animals. The &agr;1-acid glycoprotein levels of the animals to be evaluated are quantitatively determined and compared with the normal &agr;1-acid glycoprotein upper limit to identify animals whose immune systems or health has been compromised by stress or disease to provide a basis for animal management decisions to promote and maintain the optimum health and well being of the group.
    • 提供了一种客观评估和监测组中一组动物或个体动物的相对健康和体内平衡的方法,作为动物管理决策的基础。 客观评估和监测方法定量地确定所选动物种类的所选体液中α1-酸性糖蛋白值的正常上限。 定量测定待评估动物的α1-酸性糖蛋白水平,并将其与正常的α1-酸性糖蛋白上限进行比较,以鉴别其免疫系统或健康受到压力或疾病的损害,为动物管理决策提供依据的动物 促进和保持团体的最佳健康和福祉。
    • 7. 发明申请
    • ELECTRON GUN
    • 电子枪
    • US20120062094A1
    • 2012-03-15
    • US13322025
    • 2010-04-14
    • Mikio IchihashiTadashi OnishiShunichi WatanabeKeiji Tamura
    • Mikio IchihashiTadashi OnishiShunichi WatanabeKeiji Tamura
    • H01J29/48H01J29/00
    • H01J37/063H01J37/073H01J37/141H01J2237/06316H01J2237/06341H01J2237/065H01J2237/26
    • The present invention has an object to provide a cold cathode field-emission electron gun with low aberration, to thereby provide a high-brightness electron gun even in the case of a large current. The present invention provides a field-emission electron gun which extracts an electron beam from a cathode and converges the extracted electron beam, the field-emission electron gun including: a magnetic field lens which is provided such that the cathode is disposed inside of a magnetic field of the lens; and an extraction electrode for extracting electrons from the cathode, the extraction electrode being formed into a cylindrical shape without an aperture structure. The present invention can provide an electron gun having a function of converging an electron beam using a magnetic field, the electron gun which is capable of reducing an incidental electrostatic lens action and has small aberration and high brightness.
    • 本发明的目的是提供一种具有低像差的冷阴极场致发射电子枪,从而即使在大电流的情况下也提供高亮度电子枪。 本发明提供一种场致发射电子枪,其从阴极提取电子束并使所提取的电子束会聚,该场发射电子枪包括:磁场透镜,其被设置为使得阴极设置在磁性 镜头领域; 以及用于从阴极提取电子的引出电极,所述引出电极形成为没有孔结构的圆筒形状。 本发明可以提供一种电子枪,其具有使用磁场会聚电子束的功能,该电子枪能够减少偶然的静电透镜作用并且具有小的像差和高亮度。