RO

Riki Okamoto

NS Nippon Steel: 33 patents #12 of 4,423Top 1%
NM Nippon Steel & Sumitomo Metal: 22 patents #4 of 1,491Top 1%
Overall (All Time): #45,616 of 4,157,543Top 2%
55
Patents All Time

Issued Patents All Time

Showing 51–55 of 55 patents

Patent #TitleCo-InventorsDate
7780797 High strength thin steel excellent in hole expansibility, ductility and chemical treatment characteristics Hirokazu Taniguchi 2010-08-24
7615126 High strength hot rolled steel plate excellent in enlargeability and ductility and method for producing thereof Hiroyuki Okada, Toshimitsu Aso 2009-11-10
7501031 Steel sheet for tin plated steel sheet and tin-free steel sheet each having excellent formability and manufacturing method thereof Satoshi Takeuchi, Kazuhito Ito 2009-03-10
6544354 High-strength steel sheet highly resistant to dynamic deformation and excellent in workability and process for the production thereof Osamu Kawano, Junichi Wakita, Yuzo Takahashi, Hidesato Mabuchi, Manabu Takahashi +3 more 2003-04-08
6319338 High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same Osamu Kawano, Yuzo Takahashi, Junichi Wakita, Hidesato Mabuchi, Manabu Takahashi +3 more 2001-11-20