国家/地区 韩国（2）
IPC部 C（2） H（2）
IPC大类 C01（2） H05（2）
IPC小类 C01B（2）
IPC C01B032/184（2）
发明人 KIMYONGHWAN（2） NA C（2） YOON S（2）
公开年
申请年
专利权人 KOREA INST IND TECHNOLOGY（2）

Manufacture of hollow graphene ball for dry powder plating, involves dispersing transition metal powder in polyhydric alcohol, secondarily polymerizing by dispersing primary polymerized transition metal powder in saccharides, forming transition metal graphene powder, and etching.

MYUNGYOON, NA C, KIMYONGHWAN, KIMGAWON, YOON S

Three dimensional graphene ball used in composition for shielding electromagnetic waves, comprises coating layer for coating carbon balls derived from carbohydrates with silver particles, and graphene region formed between coating layer.

NA C, ARAM K, KIMYONGHWAN, YOON S