国家/地区 韩国（2）
IPC部 H（2）
IPC大类
IPC小类
IPC
发明人 RYU J C（2）
公开年
申请年 2017（2）
专利权人 HAESUNG DS C.（2）

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

Acoustic diaphragm useful in speaker to generate acoustic signal by converting electrical signal into mechanical signal, comprises e.g. a metal plate including metal and upper graphene layer provided on the upper surface of the metal plate.

RYU J C, WON D K