国家/地区 韩国（7）
IPC部 C（7）
IPC大类 C25（7）
IPC小类 C25D（7）
IPC C25D005/34（3） C25D003/56（2） C25D013/02（2）
C25D021/12（2）
发明人 JEONG H J（3） SEO M H（2）
公开年 2014（4）
申请年 2012（3） 
专利权人 POSCO（7）

High-strength steel plate comprises base steel plate, and ferrite layer having internal oxide layer on which iron-nickel alloy layer is formed with excellent surface quality formed in internal oxide layer from surface of ferrite layer.

LEE K, LEE C, KANG K, KIM N, JANG Y, LEE J, KANG K C, KIMNAMAH, JANG Y M

Photoactive electrophoresis coating solution useful for mass production of metal-plate material, comprises solvent, titania nanoparticles and graphene.

PARK J H, PARK J M

Reducing graphene oxide film, by immersing metal plate in solution and performing electrophoresis, spraying brine-water in plate and primary drying, secondary drying the plate, and performing oxidation on graphene oxide film with plate.

PARK C E, PARK S U

Coating method of graphene-metal compound involves mixing graphene-metal compound and metal particles, and impregnating substrate in graphene-metal composition such that graphene-metal compound in composition is coated on substrate.

JEONG H J, SEO M H, KANG C H

Metal finishing method for forming surface-treated steel plates, involves preparing composition for metal surface treatment containing graphene, applying composition to steel sheet, and drying.

JEONG H J, KIM H J, SEO M H

Electro-galvanized steel sheet having excellent surface appearance comprises a steel substrate, a graphene layer formed on the steel substrate, and a zinc coating layer.

KIM J K, YOO H J, JUNG Y G, KIM J S

Magnesium-based metal material comprises magnesium metal and oxide film having cracks and pore on magnesium metal, in which pores and cracks in is filled with filler comprising graphene, inorganic particles or metallic nano particles.

JU J H, TAE S Y, CHOI J, JEONG H J, SHIN Y T