RO

Riki Okamoto

NS Nippon Steel: 4 patents #7 of 325Top 3%
NM Nippon Steel & Sumitomo Metal: 4 patents #5 of 340Top 2%
Overall (2019): #13,004 of 560,194Top 3%
8
Patents 2019

Issued Patents 2019

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
10513749 Hot-rolled steel sheet and production method of therefor Takeshi Toyoda, Ryohta Niiya, Hiroshi Sakai, Hidetoshi Shindo 2019-12-24
10435772 Steel sheet Yoshinari Ishida, Daisuke Maeda 2019-10-08
10384251 Burring processing method Eiji Isogai, Yutaka MIKAZUKI 2019-08-20
10364478 Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof Tatsuo Yokoi, Hiroshi Shuto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto 2019-07-30
10336037 Galvanized steel sheet and method for producing the same Masaharu Oka, Nobuhiro Fujita, Manabu Takahashi, Kenichiroh Matsumura 2019-07-02
10294551 High-strength low-specific-gravity steel sheet having superior spot weldability Masaharu Oka, Nobuhiro Fujita, Manabu Takahashi, Chisato Wakabayashi 2019-05-21
10266928 Method for producing a cold-rolled steel sheet Yuri Toda, Nobuhiro Fujita, Kohichi Sano, Hiroshi Yoshida, Toshio Ogawa +2 more 2019-04-23
10167539 Hot-rolled steel sheet and method for producing same Kohichi Sano, Kunio Hayashi, Kazuaki Nakano, Nobuhiro Fujita 2019-01-01