国家/地区 韩国（11） 美国（10） 中国（4） 欧洲专利局（EPO）（3） 世界知识产权组织（3） 日本（2）
IPC部 B（11）
IPC大类 B01（11）
IPC小类 C01B（11）
IPC C01B031/02（11）
发明人 CHOI J（11）
公开年 2009（3） 2014（3） 2012（2）
申请年 2008（3）  2011（2）  2013（2） 
专利权人 SAMSUNG ELEC.（9） UNIV SUNGKYU.（3） UNIV SUNGKYU.（3）

Manufacture of graphene balls involves preparing dispersion comprising graphene oxide, monosaccharide to polysaccharide reducing agent and specified amount of aqueous ammonia, and spray-drying resultant dispersion.

JANG H D, CHANG H K, CHOI J H, JANG H, CHANG H, CHOI J, ZHANG X

New aromatic compound used as dispersion stabilizer for graphene-alkali metal salt composite used in manufacture of graphene used for electrical device, battery, fuel cell, and refractory metal.

KANG B, LEE D H, LEE C, ANN J, CHOI J

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

Fabricating single-layer graphene on silicon carbide wafer used as channels of field-effect transistor array, comprises disposing graphene layers on carbon buffer layer of wafer, and converting buffer layer to single-layer graphene.

WOO Y, YOON S, SHIN H, LEE D, CHOI J, WOO Y S, YOON S M, SHIN H J, LEE D W, CHOI J Y

Making crystalline graphene, used e.g. in electronic device, comprises e.g. performing first thermal treatment by supplying heat to inorganic substrate, and introducing vapor carbon supply source into reactor during first thermal treatment.

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

Controlling number of graphene layers to form mono/bilayer graphene, used e.g. in sensor, comprises forming graphene on first surface of first substrate, forming second substrate on second surface of first substrate and irradiating graphene.

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

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

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