国家/地区 韩国（2）
IPC部 C（2）
IPC大类 C09（2）
IPC小类 C09D（2）
IPC
发明人
公开年 2022（2）
申请年 2021（2） 
专利权人 KOREA ADVANCED SCI TECHNOLOGY INST（2）

Structure useful for producing high-purity methane, comprises conductive carbon nanotube structure, and iron oxide bonded to surface of carbon nanotube structure.

KANG S, SEUNGYOUBHAN, KANG J W, YANG S M

Ink composition for security printing, and used in manufacture of security indicia, comprises dielectric matrix having hydroxyl group, graphene quantum dots dispersed in dielectric matrix, and graphene quantum dot composite having afterglow properties emitting phosphorescence at room temperature.

JEON S, PARK M, WOO J, PARK M S