国家/地区 中国（4） 世界知识产权组织（3） 欧洲专利局（EPO）（2） 印度（2） 韩国（2）
IPC部 C（8）
IPC大类 C21（8） C23（4） B32（3）
C22（3） C25（2）
IPC小类 C21D（8）
IPC C21D008/02（8）
发明人
公开年 2022（3） 2023（2）
申请年 2022（4） 
专利权人 POSCO（2）

Polymer nanocomposite film for developing electrical devices such as capacitors, sensors, and energy storage devices, comprises polyvinylidene fluoride, graphene oxide, and chromium-doped nickel ferrite nanoparticles.

CHAHAL S, SINGHAL N, KUMAR P, PANDEY R

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

Acid cleaning process of corrosion resistant stainless steel belt comprises performing solid solution treatment on stainless steel plate, annealing once, finish rolling, and secondary annealing and performing four stages of coating treatment.

YU C, JI F, XING Y, ZHANG X, WU M, LI Y, WU B, WANG Y, SHAN C, BEN H

Electrical steel used as strip e.g. steel sheets, comprises functional layer comprising ferromagnetic material and additional layer comprising non-magnetizable material, which are connected by adhesive bond with atomic diffusion.

FRANKEN C, PLATT J

Method for manufacturing corrosion resistant aluminum brazing composite plate for use in automobile, involves performing hot rolling, primary annealing, cold rolling, secondary anneal and cooling to obtain corrosion-proof aluminum brazing composite plate.

DING D, DING X

Preparing graphene metal composite plate comprises e.g. polishing outer surface of metal plates using grinding machine, soaking in diluted hydrochloric acid solution, heating, clamping, coating graphene, extruding and rolling.

BAO Z, HUANG W, XU L, LI D, LI W, AN J

Nickel-carbon-phosphorus-based electroless composite coating for e.g. ball bearing, sink roll has predetermined quantity of nickel salt, reducing agent, graphene, complexing agent, sodium silicate and polyethylene glycol.

MANNA M, MITTAL A

Graphene coated sheet for surface-treated steel plate used in e.g. car material, has graphene layer that is formed on steel sheet structure.

HWANG C C, JUNG Y G, HWANG H N, JEONG J I, YANG J H, JUNG Y, JEONG J, YANG J, HWANG H, HWANG C, GUK H C, IN J J, HUN Y J, GYUN J Y, NA H H