国家/地区 韩国（2）
IPC部
IPC大类
IPC小类
IPC
发明人 CHOI J S（2）
公开年 2017（2）
申请年 2016（2） 
专利权人

Optical coupler for use in communication field, has graphene light source for radiating graphene and delivering graphene to optical waveguide through combiner, where combiner is fixed on waveguide that is arranged on substrate.

KIM J T, CHOI C G, YU Y J, LEE Y S, CHOI J S, CHOI H K

Graphene or graphite flooring, has plate-shaped base layer formed with first floor material, and hot water pipe inserted in joint, where joint height of first floor material is lower than that of protrusion part of second floor material.

CHOI J S, HAN S U