国家/地区 韩国（2） 世界知识产权组织（2）
IPC部 C（2） H（2）
IPC大类 C08（2）
IPC小类 C08K（2）
IPC C08K003/04（2）
发明人 KIM J（2）
公开年 2021（2）
申请年 2021（4）
专利权人 LG ELECTRONICS INC（4）

Adding graphene derivatives in active layer and substrate layer in filtration membrane, involves adding predetermined quantity of graphene derivatives to predetermined quantity of organic solvent, and mixing graphene derivatives with organic solvent in predetermined ratio to form graphene dispersion.

KAUSHIK A

Diaphragm of sound generating device, has matrix structure that is provided with material and comprises through holes or non-through holes, and graphene layer that is positioned in portion of through holes/non-through holes.

LEE S, LEE K, LEE D

Material used for sensor for sensing gas including toxic gas and volatile organic compound, e.g. nitrogen-based compound, alcohol, ketone, aldehyde or thiol compound, preferably acetone, ammonia, formaldehyde or methyl mercaptan, comprises polypyrrole derivative and carbon material.

KANG S, TAKADA M, KIM J, HWANG B, HWANG P Y, KIM J Y, KANG S M

Induction heating type cooktop comprises case, cover plate that is coupled to upper end of case and that includes upper plate arranged to receive target object, and working coil that is provided in case.

KIM T, HWANG J, KIM J, KIM W, JANG E, KIM W T, KIM J W, HWANG J W, KIM T H