KO

Kazuhisa Okai

JS Jfe Steel: 2 patents #35 of 248Top 15%
Overall (2023): #138,065 of 537,848Top 30%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11795526 Surface-treated steel sheet Masahiro Yoshida, Takeshi Matsuda, Yusuke Fushiwaki, Akira Matsuzaki, Daisuke Mizuno 2023-10-24
11618938 Steel sheet having a hot-dip Zn—Al—Mg-based coating film excellent in terms of surface appearance and method of manufacturing the same Hiroki Harada, Hiroshi Kajiyama 2023-04-04