国家/地区 韩国（17） 中国（4） 欧洲专利局（EPO）（4） 美国（4） 世界知识产权组织（4） 日本（3）
IPC部 C（17）
IPC大类 C01（17）
IPC小类 C01B（17）
IPC C01B031/02（9） C01B031/04（7） C23C026/00（3）
B82Y030/00（2） B82Y040/00（2） C01B017/26（2）
C01B032/198（2） C08K003/04（2） C08L101/00（2）
C09D007/12（2） C23C016/26（2）
发明人 JUNG Y G（7） YOO H J（7） KIM J S（4）
JUNG Y（3） KIM J（3） KIM J K（3）
LIU H（3） BYEON C（2） BYEON C S（2）
GYUN J Y（2） JOO K B（2） KO Y（2）
LEE S H（2） LEE S Y（2） PARK J K（2）
公开年 2014（7） 2015（3） 2017（3） 2022（2）
申请年 2012（5）  2013（3）  2015（3）  2020（3）  2014（2） 
专利权人 POSCO（17）

Producing lithium sulfide useful in next-generation battery field, comprises performing heat treatment by heat-treating mixture of lithium sulfate and reducing agent powder and heating lithium sulfide obtained by reducing lithium sulfate.

SEO H, SON Y K, JEONG S H, YEO I G, JOO K B, PARK J K, PARK W, KO Y, LEE S H

Production of lithium sulfide for producing high-purity lithium sulfide used as raw material for sulfide-based solid electrolyte, involves heat-treating by mixing lithium sulfate with carbon-based material having preset mixing ratio, and obtaining lithium sulfide.

JOO K B, SON Y K, PARK J K, PARK W, SEO H, KO Y, LEE S H

Method for manufacturing graphene-coated steel sheet, involves modifying steel sheet to have negative charge and forming of first graphene oxide layer is performed using graphene oxide dispersion modified with amine group.

YOO H, KIM J, BAEK J, BYEON C, YOO H J, SU K J, BAEK J H, BYEON C S, BAI J, LIU H

Separating graphene oxide for producing graphene coated steel sheet, comprises preparing a graphene oxide aqueous solution, adjusting acidity by adding acid/base, and separating supernatant and lower layer solution.

JIN Y H, GYUN J Y, YOO H J, JUNG Y G

Graphene-coated steel sheet comprises steel sheet coated with coating composition comprising binder, solvent and alkyl-reduced graphene oxide which is reduction product of graphene oxide and alkylamine.

YOO H J, JUNG Y G

Functionalized graphene nanoplatelet comprises functional molecules, functional vapor, and graphene platelets, where the functional molecules comprise aromatic hydrocarbon or heterocyclic ring substituted with polar functional group.

HONG S H, JUN G H, KIM J H, RYU H J

Producing graphene thin film, comprises producing precursor layer using coal tar or coal tar pitch on first substrate, producing catalyst layer on precursor layer, heat treating catalyst layer under inert gas atmospheric, and cooling.

LEE T W, SEO H K

New non-covalent modified carbon structure e.g. carbon nanotubes, graphene and graphene nanoplatelets used in manufacture of carbon structure/polymer complex composite.

JUNG Y, YOO H J, KIM J, KIM J S, BYEON C, JUNG Y G, BYEON C S, LIU H

Surface modification of titanium using graphene used in e.g. osseointegration implant for promoting bone regeneration, involves reducing oxidized graphene-titanium using hydrazine, and carrying out electrodeposition process.

HAHN S K, LEE C S, JUNG H S, KIM H S, OH S H, YUH J H, CHOI Y J, JEONG J W, LEE B G, CHA H J, CHO D W

Manufacturing graphene sheet involves preparing molten iron by reacting iron ore with carbonaceous reducing agent, and obtaining reductant gas containing carbon monoxide during production of molten iron and then producing graphene sheet.

YOUN J Y