国家/地区 韩国（14）
IPC部 C（14）
IPC大类 C01（14） B01（6） C09（2）
F28（2） H01（2） H05（2）
IPC小类 C01B（14）
IPC C01B032/19（14）
发明人 MIN R（3） CHOI S（2） KYOUNGJEONGBAE（2）
RYOU M（2）
公开年 2022（14）
申请年 2021（10）  2020（3） 
专利权人 GIEVER（3） ELEMENT CO L.（2） GIEVER CO LT.（2）

Carbon steel material useful for heat sink in electrical and electronic devices comprise carbon steel substrate, and reduced graphene oxide coating layer formed on the carbon steel substrate.

DOW H S

Continuous mass production of graphene using thermal plasma comprises, generating plasma by injecting, injecting expandable graphite and intercalation graphite, exfoliating graphene by expanding expanded graphite, and drying by hot air.

KYOUNGJEONGBAE, HWAN B J, CHOI S

Environmentally friendly mass production of high-purity graphene flakes useful in aircraft and automobiles, comprises preparing aqueous solution, adding carbon-based material and aqueous solution and reusing it as aqueous solution.

NA H G, SIM G S, CHO J

Synthesizing functionalized graphene using plant extract useful for producing gold nanoparticle-functionalized graphene complex comprises mixing graphite with plant extract, applying ultrasonic waves, and separating supernatant.

KIM B S, DESHIMUKARTI

Producing composite graphene flake metal comprises charging expandable graphite into furnace, sealing, heating expandable graphite, and maintaining or lowering temperature of expandable graphite by stopping microwave irradiation.

MIN R

Heat dissipation sheet comprises e.g. graphite layer, primary graphene layer stacked on one side of graphite layer with primary adhesive layer interposed there between and secondary graphene layer stacked with secondary adhesive layer.

PARK J, YOUNG C, CHOI C Y, PARK J U, CHOI C, PIAO Z

Continuous mass production of graphene comprises injecting inert gas into plasma apparatus to generate plasma, injecting expandable graphite and intercalation graphite, expanding by thermal plasma treatment and cooling collected graphene.

KYOUNGJEONGBAE, CHOI S, NGUYENDINHHUONG

Preparing hybrid complex useful for preparing electrode active material for lithium-ion battery comprises mixing graphene or transition metal dichalcogenide, injecting nitrogen, mixing cation precursor solution, and ion-exchanging.

YUN H N, PARK S, JUNG K, YANG J, YOO J J, HYUN R M, LEEYOUNGA, JANG G Y, SHIN H

Preparing graphene flake composition, by preparing expandable graphite, charging expandable graphite to furnace, sealing furnace, heating furnace by irradiating microwaves, maintaining temperature of expandable graphite by stopping microwave irradiation, and mixing graphene and binder polymer.

RYOU M, MIN R

Producing graphene flakes, involves preparing expandable graphite, charging expandable graphite into furnace, sealing furnace, heating expandable graphite by irradiating furnace with microwaves, and maintaining or lowering temperature of expandable graphite by stopping microwave irradiation.

RYOU M, MIN R