国家/地区 日本（6） 美国（6） 世界知识产权组织（6） 欧洲专利局（EPO）（5） 中国（4） 韩国（3） 台湾（3） 澳大利亚（2） 西班牙（2） 英国（2） 印度（2） 新加坡（2）
IPC部 B（6）
IPC大类 C01（6）
IPC小类 C01B（6）
IPC C01B031/04（6）
发明人 HASEGAWA S（2） HASEGAWA SHOJI（2） KAMIYA N（2）
KAMIYA NAGISA（2）
公开年 2015（6）
申请年 2014（6）
专利权人 GRAPHENE PLA.（2）

Large-scale preparation graphene quantum dots, comprises adding graphene oxide into first solvent to obtain first dispersion solution, adding reducing agent, reacting, carrying out solid-liquid separation and cooling to obtain crude product.

ZHANG M, ZHANG L

Production of graphene involves applying physical force to liquid dispersion of dispersing agent containing polyaromatic hydrocarbon oxide, and carbon-based material comprising graphite, and forming graphite into nano graphene flakes.

SOHN K N, YOO K H, KWON W J, LEE K S, YANG S B, KIM I Y, LEE M J, LEE J Y, SOHN K, YOO K, KWON W, LEE K, YANG S, KIM I, LEE M, LEE J, LI M, LI J

Production of aqueous dispersion of few-layer graphene nanosheets used for coated article, involves mixing graphite particles with perfluorosulfonate ionomer in aqueous liquid, and arranging ionomer as thin and continuous layer.

JULIUS D, ZIN M, DIVIGALPITIYA R, KORBA G A, KIM M

Graphene composition for graphene molding comprises organic compound, graphene with flakes, and dispersing agent.

HASEGAWA SHOJI, KAMIYA NAGISA, HASEGAWA S, KAMIYA N

Synthesizing reduced graphene oxide on a substrate from seedlac, comprises preparing the seedlac solution in alcohol having specified carbons, dipping the substrate into the solution, and heating the substrate which is a metallic sheet.

SHYAM K C, MANISH K B, TAPAN K R, SUMITESH D, RANJAN K S, YASHABANTA N S, ASHIT K P, VIKAS C S, CHOUDHARY S K, BHADU M K, ROUT T K, DAS S, SAHU R K, SINGHBABU Y N, PRAMANICK A K, SRIVASTAVA V C

Graphite-type carbon raw material used as graphene precursor, has rhombohedral system graphite layer and hexagonal system graphite layer in ratio more than preset value, as measured using peak intensities specific planes of layers.

HASEGAWA S, KAMIYA N, SHOJI H, NAGISA K, HASEGAWA SHOJI, KAMIYA NAGISA, SHEN Y