国家/地区 世界知识产权组织（5）
IPC部 C（5）
IPC大类 C21（5） B32（2） B82（2）
C01（2） C22（2）
IPC小类 C21D（5）
IPC C21D008/02（3） B32B009/00（2） B82Y040/00（2）
C01B031/04（2） C21D001/72（2）
发明人
公开年
申请年 2022（2） 
专利权人 POSCO（2）

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

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

Jet strengthening device comprises nozzle provided with hollow cavity and connected with mixing chamber, control device to control operation of first stirrer, second stirrer and lifting platform and nozzle connected with mixing chamber.

ZHANG X, ZHANG P, ZHANG C, TU S, ZENG F, GONG C, LIU Y, WANG Y

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

Graphene-coated component for, e.g. electrodes of batteries, has graphene film provided on metallic substrate having carbon formed into solid solution, and consisting of solid-solution carbon precipitated on surface of substrate.

FUJITA DAISUKE, SAGISAKA KEISUKE, ONISHI KEIKO, FUJITA D, SAGISAKA K, ONISHI K