国家/地区 世界知识产权组织（11）
IPC部 B（11）
IPC大类 C01（11） C09（11） B82（8）
C08（6） H01（6） H05（4）
B01（3） C10（3） B05（2）
B29（2） B33（2） C04（2）
C23（2）
IPC小类 C01B（11）
IPC C01B031/04（11）
发明人 HASEGAWA S（3） HASEGAWA SHOJI（3） KAMIYA N（3）
KAMIYA NAGISA（3） BOHM S（2） NAGISA K（2）
SHEN Y（2） SHOJI H（2）
公开年 2015（11）
申请年 2014（9） 
专利权人 GRAPHENE PLA.（3） GRAPHENE PLA.（2） TATA STEEL U.（2）

Graphite-based carbon material used as graphene precursor for preparing graphene dispersion, comprises rhombohedral graphite layer and hexagonal graphite layer, and has specified rate calculated based on X-ray diffraction method.

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

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

Coated strip or sheet comprises steel strip or sheet, zinc (alloy) coating on steel strip or sheet, coating system for inhibiting corrosion, and top coat in which coating system contains corrosion inhibitive composition with graphene.

VAN DER WEIJDE D H, BOEHM S, BOEHM H L M, BOEHM H, VAN DER WEIJDE D, BOHM H L M, BOHM S

Method for preparing graphene based composition, comprises subjecting composition containing water and graphene precursor to mechanical and chemical treatment for forming graphene and separating graphene.

BOHM S, WEIJDE D H V D

Manufacture of graphene powder used for, e.g. electronic components, involves cleaving raw material containing graphite by jet stream of gas at specific speed, and micronizing.

HASEGAWA SHOJI, KAMIYA NAGISA, HASEGAWA S, KAMIYA N

Preparing graphene oxide film, used to prepare e.g. dual-layer graphene-oxide film, includes concentrating graphite oxide aqueous slurry, depositing obtained gel slurry on low-friction surface and spreading by bar coating and drying.

CRUZSILVA R, MORELOS A, TERRONES M, ELIAS A L, PEREALOPEZ N, ENDO M

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

Antimicrobial nanocomposite composition, useful as a coating for e.g. a medical device, comprises a styrene and a methyl methacrylate in a specified weight ratio, and a silver nitrate and a graphene powder in a specified weight percentage.

ALSHARAEH E H, ALDOSARI M A, OTHMAN A A M, ALHINDAWI M F Q, ALSAUD K B B, OTHMAN A A