国家/地区 中国（4） 世界知识产权组织（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B031/04（2）
发明人
公开年 2015（4）
申请年 2014（4）
专利权人 HUAWEI TECHNOLOGIES CO LTD（4）

Preparation of graphene involves preparing expanded graphite, mixing expanded graphite with oxidizing agent and lead to weak oxidation reaction, and peeling off expanded graphite oxide in solvent.

XIA S, XIE F, YAN L

Graphene-based electro-absorption optical modulator, has substrate provided with long range SPP waveguide structure that comprises high and low refractive index material layers and graphene layers to be sequentially formed on substrate.

WANG J, HU X, HE J

Graphene thin film device for high power electronic device, has target portion that is attached to surface of graphene thin film, and thickness of graphene film is in preset dimension.

FANG W, HONG Y, LIU J

Quinone compound-graphene composite material useful as cathode material in flexible lithium secondary battery, comprises quinone compound and graphene.

WANG P