国家/地区 韩国（18）
IPC部 C（18）
IPC大类 C01（18） B01（6） C09（6）
H05（5） C25（4） C08（2）
F28（2）
IPC小类 C01B（18）
IPC C01B032/19（18）
发明人 MIN R（3） CHOI S（2） KWON H J（2）
RYOU M（2） SONG J（2） YUMINSOOK（2）
公开年 2022（10） 2023（6） 2021（2）
申请年 2021（18）
专利权人 GIEVER（3） GIEVER CO LT.（2） PURE MANN IN.（2）

Production of silver particle-graphene composite material used for heating device, involves adding N-methyl-2-pyrrolidone, and stirring, exfoliating and dispersing wet graphite to preparing graphene-containing composition, adding silver particles, and exfoliating and dispersing.

LIM K, NOH C, IMKIHYUN, ROH C

Producing graphene made by exfoliating graphite comprises e.g. preparing dispersion solution, preparing graphite slurry by mixing dispersed aqueous solution and expanded graphite, and exfoliating.

PARK S C, YUN J H, KIM Y S

Producing graphene, comprises exfoliating graphene by applying voltage to working electrode and counter electrode installed in electrolyte solution to which antioxidant or reducing agent is added.

YOO H, HAN S Y

Explosive puffing reactor for preparation of porous materials, has valve unit that is connected to other end of flow path unit to control gas flow inside case unit, and nozzle unit connected to valve unit and discharging gas to outside.

SEON A H, SHIM K

Heat dissipation adhesive sheet useful in electronic components e.g. semiconductors, or PC boards comprise metal thin film layer formed on lower surface of heat dissipation layer, and adhesive layer on metal thin film layer.

HUN L S, SONG J, KWON H J, CHOI S, YUMINSOOK, YOUK S K

Heat dissipation graphite sheet useful in producing mobile phones and thin portable products comprise heat dissipation layer containing urethane resin, and expanded graphite particles applied to one surface of graphite layer.

KIMTAEHAN, KWON H J, CHOI S, SHIM Y, SONG J, YUMINSOOK

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

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