Issued Patents 2016
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9512508 | High-strength cold-rolled steel sheet having excellent stretch flangeability and precision punchability and manufacturing method thereof | Hiroshi Shuto, Nobuhiro Fujita, Tatsuo Yokoi, Riki Okamoto, Shinichiro Watanabe | 2016-12-06 |
| 9453269 | Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof | Tatsuo Yokoi, Hiroshi Shuto, Riki Okamoto, Nobuhiro Fujita, Takeshi Yamamoto | 2016-09-27 |
| 9347122 | Manufacturing method of a high-strength cold-rolled steel sheet having excellent local deformability | Yoshihiro Suwa, Kunio Hayashi, Riki Okamoto, Nobuhiro Fujita, Kohichi Sano | 2016-05-24 |
| 9267196 | Method of producing a hot rolled steel sheet | Riki Okamoto, Nobuhiro Fujita, Manabu Takahashi, Kunio Hayashi, Tetsuo Kishimoto +1 more | 2016-02-23 |