国家/地区 韩国（3）
IPC部 B（2） C（2） H（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B031/04（2） C01B032/186（2）
发明人 CHO K W（3）
公开年
申请年
专利权人 CENT ADVANCE.（3）

Attachable microphone for microphone array, has substrate having back chamber with first tubular hollow, and first frame member surrounding back chamber and containing first polymer or inorganic material; and back plate unit.

CHO K, MOON W, LEE S, KIM J, CHO K W, MOON W K, KIM J S

Manufacture of graphene used in manufacture of electric device, involves contacting hydrogen gas with metal catalyst, contacting metal catalyst with hydrocarbon gas, nitrogen gas, or inert gas, and forming graphene on metal catalyst.

CHO K W, LEE H C, LEE E H, CHO K, LEE E, LEE H, LI E

Manufacture of graphene for electric component, involves forming metal catalytic layer on substrate, introducing cover material on catalytic layer, and growing graphene on catalytic layer by carrying out chemical vapor deposition.

CHO K, BONG H, CHO K W