国家/地区 韩国（4）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B031/04（2）
发明人 WON D K（4）
公开年 2018（4）
申请年 2016（3） 
专利权人 HAESUNG DS C.（4）

Fabricating graphene involves mixing graphite, sulfuric acid and potassium permanganate to form oxidized graphene and heat treating formed graphene grains at temperature not lower than decomposition temperature of sulfur.

WON D K

Producing graphene membrane, comprises e.g. oxidizing graphite powder to produce oxidized graphite powder, preparing oxidized graphene flakes by ball milling and centrifuging, and dispersing in dispersion solvent to prepare dispersion.

WON D K

Graphene wire used in acoustic apparatus, comprises catalytic metal, graphene layer coated on catalytic metal surface, and healing metal layer disposed on graphene layer, where graphene layer includes defect portion.

WON D K

Graphene wire for cable, has graphene layer coated on surface of catalyst metal line that includes multiple twisted wires, metallic layer coated on surface of each twisted wire, and insulating layer for covering graphene coating layer.

WON D K, RYU J C, YUAN D, RYU J