RO

Riki Okamoto

NM Nippon Steel & Sumitomo Metal: 7 patents #1 of 440Top 1%
Overall (2016): #13,049 of 481,213Top 3%
7
Patents 2016

Issued Patents 2016

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9512508 High-strength cold-rolled steel sheet having excellent stretch flangeability and precision punchability and manufacturing method thereof Hiroshi Shuto, Nobuhiro Fujita, Tatsuo Yokoi, Kazuaki Nakano, Shinichiro Watanabe 2016-12-06
9458520 Manufacturing method of a high-strength cold-rolled steel sheet having excellent uniform elongation and hole expandability Yuri Toda, Nobuhiro Fujita, Kohichi Sano, Hiroshi Yoshida, Toshio Ogawa 2016-10-04
9453269 Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof Tatsuo Yokoi, Hiroshi Shuto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto 2016-09-27
9410231 Steel sheet and method of manufacturing steel sheet Natsuko Sugiura, Kohichi Sano, Chisato Wakabayashi, Naoki Yoshinaga, Kaoru Kawasaki 2016-08-09
9347122 Manufacturing method of a high-strength cold-rolled steel sheet having excellent local deformability Yoshihiro Suwa, Kazuaki Nakano, Kunio Hayashi, Nobuhiro Fujita, Kohichi Sano 2016-05-24
9273370 Hot-rolled steel sheet, cold-rolled steel sheet, galvanized steel sheet, and methods of manufacturing the same Nobuhiro Fujita, Kunio Hayashi, Manabu Takahashi, Tetsuo Kishimoto, Hiroshi Yoshida 2016-03-01
9267196 Method of producing a hot rolled steel sheet Nobuhiro Fujita, Manabu Takahashi, Kunio Hayashi, Tetsuo Kishimoto, Kazuaki Nakano +1 more 2016-02-23