国家/地区 韩国（2）
IPC部
IPC大类
IPC小类
IPC
发明人 LEE S（2）
公开年
申请年
专利权人 POSTECH RES BUSINESS DEV FOUND（2）

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

Photocatalyst for use as denitrification catalyst for removing nitrate ion, and processing water, comprises titanium dioxide particle comprising titanium dioxide, carbon material located on all or portion of surface of titanium dioxide particle and comprising graphene, reduced graphene oxide.

LEE S, CHOI W, CHOIWEONYONG, BI L S