国家/地区 美国（5） 世界知识产权组织（5） 欧洲专利局（EPO）（4） 中国（3） 澳大利亚（2） 加拿大（2） 日本（2） 韩国（2）
IPC部 B（5）
IPC大类 C01（5）
IPC小类 C01B（5）
IPC C01B031/04（5）
发明人
公开年 2014（5）
申请年 2013（3）  2014（2） 
专利权人

Material useful in electric device, comprises reduced graphene oxide, where degree of reduction of graphene oxide exhibits spatial variation so that material exhibits gradient in electric conductivity and/or permittivity.

LOGAKIS E, SKORDOS A, CHATZI P

Making graphene oxide or flakes, comprises placing graphite into water containing oxidizing agent, mechanically exfoliating graphite into graphene flakes, and separating graphene flakes from water.

BLAIR R

Preparation of graphene-based film used for device, involves forming layered structure by providing graphene-based film comprising sheets of graphene, graphene oxide and partially reduced graphene oxide.

LI D, YANG X

Forming metal oxide/reduced graphene oxide composite film comprises providing graphene oxide dispersion, adding metal oxide, filtering metal oxide/graphene oxide dispersion, and reducing metal oxide/graphene oxide film using reducing agent.

LEE P S, SUMBOJA A, FOO C Y

Graphene composition useful in an electrode for a lithium ion battery, comprises thiourea that has a specified sulfur to carbon ratio.

SUN P, WU Z, LIU G, WU G, TAMAKI E, KUBOTA Y