Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9512508 | High-strength cold-rolled steel sheet having excellent stretch flangeability and precision punchability and manufacturing method thereof | Nobuhiro Fujita, Tatsuo Yokoi, Riki Okamoto, Kazuaki Nakano, Shinichiro Watanabe | 2016-12-06 |
| 9453269 | Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof | Tatsuo Yokoi, Riki Okamoto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto | 2016-09-27 |