国家/地区 美国（5） 世界知识产权组织（5） 中国（4） 欧洲专利局（EPO）（4） 日本（4） 韩国（4） 台湾（4） 西班牙（2）
IPC部 B（5）
IPC大类 B82（5）
IPC小类 B82Y（5）
IPC B82Y030/00（5）
发明人 CHIBA G（3） CHIBA Y（3） YOSHIHIRO C（3）
TATSUYA Y（2） YAMAJI T（2）
公开年 2012（5）
申请年 2012（4） 
专利权人 JX NIPPON MI.（3） NIPPON MININ.（3） NIPPON MININ.（3） NIPPON MININ.（2）

Graphene-based steel tubes, pipes or risers used for conveying petroleum, gas and biofuels, and for use in underwater riser systems for deep water with direct application in petroleum industry, comprise aluminum, cobalt, copper and chromium.

CARVALHO A L M D, ZURBA N K, MOREIRA DE CARVALHO A L, MOREIRA D C A L

Copper foil for manufacturing graphene, has specified sum total of oxides and sulfides having diameter of below preset value before heating under hydrogen and argon-containing atmosphere.

CHIBA Y, YAMAJI T, YOSHIHIRO C, TATSUYA Y, CHIBA G

Copper foil for manufacturing graphene, has specified total number of oxide and sulfide having specified diameter with respect to elemental-analysis measurement of surface using scanning electron microscope.

CHIBA Y, YAMAJI T, YOSHIHIRO C, TATSUYA Y, CHIBA G

Synthesizing graphene comprises refluxing reaction mixture of solvent e.g. water and carbonaceous material promoting polycyclic aromatic hydrocarbon formation, collecting and directing obtained vapors to substrate and recovering graphene.

SHANKMAN R S, HANKMAN R S

Copper foil used for manufacturing graphene, has glossiness or more than preset value, and average grain size more than preset value after being heated in atmosphere containing hydrogen and argon at specific conditions.

CHIBA YOSHIHIRO, CHIBA Y, YOSHIHIRO C, CHIBA G