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    • 3. 发明专利
    • Reduction of graphene oxide to graphene in high boiling point solvent
    • 在高沸点溶剂中还原石墨氧化物至石墨
    • JP2010222245A
    • 2010-10-07
    • JP2010066866
    • 2010-03-23
    • Northrop Grumman Systems Corpノースロップ グラマン システムズ コーポレーション
    • GILJE S SCOTT
    • C01B31/02
    • C01B31/0446B82Y30/00B82Y40/00C01B32/184C01B32/192Y10S977/70Y10S977/734Y10S977/755Y10S977/842Y10S977/895Y10S977/90
    • PROBLEM TO BE SOLVED: To provide a method for producing graphene comprising a step of forming water dispersion of graphene oxide.
      SOLUTION: The method for producing graphene comprises: a step of adding a solvent to the dispersion to form a solution; and a step of controlling the temperature of the solution to form graphene. The step of dispersing graphene oxide into water comprises a sonic treatment. The dispersion comprises the graphene oxide and water in a ratio of approximately one milligram of graphene oxide to approximately one milliliter of water. The solvent is a water-miscible solvent. The water-miscible solvent is at least one of n-methylpyrrolidone, ethylene glycol, glycerin, dimethylpyrrolidone, acetone, tetrahydrofuran, acetonitrile, dimethylformamide, an amine and an alcohol. The step of adding the solvent to the dispersion comprises adding an amount of the solvent approximately equivalent to the amount of the dispersion.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 待解决的问题:提供一种生产石墨烯的方法,包括形成氧化石墨烯的水分散体的步骤。 解决方案:用于生产石墨烯的方法包括:向分散体中加入溶剂以形成溶液的步骤; 以及控制溶液的温度以形成石墨烯的步骤。 将氧化石墨烯分散在水中的步骤包括声处理。 分散体包含石墨烯氧化物和约1毫克氧化石墨烯与约1毫升水的比例的水。 溶剂是与水可混溶的溶剂。 水混溶性溶剂是正甲基吡咯烷酮,乙二醇,甘油,二甲基吡咯烷酮,丙酮,四氢呋喃,乙腈,二甲基甲酰胺,胺和醇中的至少一种。 向分散体中加入溶剂的步骤包括加入大约相当于分散体量的溶剂量。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Method of manufacturing diffractive optical member
    • 制造衍射光学元件的方法
    • JP2012215904A
    • 2012-11-08
    • JP2012157975
    • 2012-07-13
    • Northrop Grumman Systems Corpノースロップ グラマン システムズ コーポレイションNorthrop Grumman Systems Corporation
    • ROTHENBERG JOSHUA ELLIOTT
    • G02B5/18G11B7/135G11B7/22
    • G02B27/1073G02B27/1006G02B27/1086
    • PROBLEM TO BE SOLVED: To provide a diffractive optical member that can attain higher efficiency and perform vapor deposition of an additional layer after etching without degradation in performance.SOLUTION: A transmissive or reflective diffractive optical member comprises a substrate having a top surface. The top surface is etched so as to have a pattern. The pattern comprises a surface pattern of periodic grooves formed such that when the top surface is irradiated with an incident light beam, the incident light beam will be split into a plurality of diffracted light beams. The plurality of diffracted light beams comprises a plurality of primary diffracted beams and a plurality of secondary diffracted beams. The primary diffracted beams have a primary aggregate efficiency above 90%. The plurality of secondary diffracted beams have a secondary aggregate efficiency lower than 10%. Maximum power of the primary diffracted beams and minimum power of the primary diffracted beams differ by at least 10% of average power of the primary diffracted beams.
    • 要解决的问题:提供可以在蚀刻后可以获得更高效率并进行附加层的气相沉积而不降低性能的衍射光学部件。 解决方案:透射或反射衍射光学构件包括具有顶表面的衬底。 蚀刻顶表面以具有图案。 该图案包括形成为使得当顶表面被入射光束照射时的周期性凹槽的表面图案,入射光束将被分裂成多个衍射光束。 多个衍射光束包括多个主衍射光束和多个次级衍射光束。 主衍射光束的主要聚集效率高于90%。 多个次级衍射光束的次要聚集效率低于10%。 主衍射光束的最大功率和主衍射光束的最小功率相差至少为主衍射光束的平均功率的10%。 版权所有(C)2013,JPO&INPIT