国家/地区 美国（9） 韩国（8） 中国（3） 欧洲专利局（EPO）（3） 日本（2） 世界知识产权组织（2）
IPC部 B（9）
IPC大类 B01（9）
IPC小类 B01J（9）
IPC C01B031/04（9）
发明人 CHOI J（9）
公开年 2009（4） 2010（2）
申请年 2008（4）  2009（2） 
专利权人 SAMSUNG ELEC.（9） UNIV SUNGKYU.（4） UNIV SUNGKYU.（3）

Restoring properties including charge neutrality point, doping state, carriers and conductivity of graphene used for silicon treatment of graphene, comprises grounding graphene, and exposing graphene to plasma having specified density.

CHOI J, YOO W, LEE S, LIM Y, CHOI J Y, LEE S H, LIM Y D, YOO W J

Method for transferring graphene sheet to device involves forming binder layer on graphene sheet on which carbonization catalyst is formed, exfoliating carbonization catalyst and transferring graphene sheet to device.

SHIN H J, CHOI J, YOON S

Forming graphene nano ribbon used in display device involves depositing graphene sheet on surface of substrate, forming plasma mask with nano pattern on sheet, and forming nano pattern in sheet by plasma treating stack structure having mask.

SHIN H, CHOI J, LEE Y, HAN G, CHOI J Y, HAN G H, LEE Y H, SHIN H J

Graphene used for device and graphene sheet, comprises etched edge portion comprising functional group of carbonyl, carboxy, hydroxy, formyl and/or oxycarbonyl.

CHOI J, CHOI W M, HONG B H, CHOI W, HONG B

Removing a carbonization catalyst from graphene sheet, involves contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.

CHOI J, HONG B H, KIM K S

Preparing graphene shell comprises performing first heat treatment on a mixture of organic solvent and graphitization catalyst to carburize the catalyst, and forming the shells on surfaces of carburized catalyst by second heat treatment.

CHOI J, SHIN H, YOON S, IN Z, CHOI J Y, SHIN H J, YOON S M

Preparing graphene sheet, useful in e.g. electrical device, comprises forming film comprising graphitizing catalyst, heat-treating gaseous carbon source in presence of the catalyst to form graphene, and cooling graphene to form sheet.

CHOI J, SHIN H, YOON S, CHOI J Y, SHIN H J, YOON S M, IN Z

Graphene sheet preparation e.g. for hydrogen storage medium, comprises disposing polymer on sheet form graphitizing catalyst, and heat-treating polymer on graphitizing catalyst in inert or reductive atmosphere.

CHOI J, SHIN H, YOON S, CHOI J Y, SHIN H J, YOON S M, YEONG C J, JIN S H, MI Y S

Preparing a graphene shell, useful e.g. in hydrogen storage medium, comprises forming a graphitizing catalyst in a three-dimensional form, coating a polymer on graphitizing catalyst and heat-treating polymer coated on graphitizing catalyst.

CHOI J, SHIN H J, YOON S, CHOI J Y, YOON S M, SHIN H