Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428694 | Hot-rolled steel sheet and method for manufacturing same | Tatsuo Yokoi, Mutsumi SAKAKIBARA, Jun ANDO, Shinsuke Kai, Hiroshi Shuto | 2025-09-30 |
| 11492679 | Hot-rolled steel sheet and method for manufacturing same | Tatsuo Yokoi, Hiroshi Shuto, Jun ANDO, Mutsumi SAKAKIBARA | 2022-11-08 |
| 10718040 | Hot-rolled steel sheet, steel material, and method for producing hot-rolled steel sheet | Kazuya Ootsuka, Akifumi SAKAKIBARA | 2020-07-21 |
| 10655192 | Hot-rolled steel sheet | Akifumi SAKAKIBARA, Kazuya Ootsuka, Takehiro Hoshino, Daisuke Maeda | 2020-05-19 |
| 7820099 | Hot rolled steel sheet excellent in chemical convertibility and method of production of the same | Masahiro Ohara | 2010-10-26 |
| 7749338 | High burring, high strength steel sheet excellent in softening resistance of weld heat affected zone and method of production of same | Tatsuo Yokoi, Masahiro Ohara, Kouichi Tsuchihashi | 2010-07-06 |
| 7503984 | High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same | Tatsuo Yokoi, Natsuko Sugiura, Takaaki Nakamura, Takehiro Nakamoto | 2009-03-17 |
| 4960158 | Process for producing a zinc-plated steel sheet with an ageing resistance by hot dip-type, continuous zinc plating | Teruaki Yamada, Osamu Akisue, Toshiyasu Ukena, Masahiko Oda | 1990-10-02 |
| 4931107 | Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing | Teruaki Yamada, Toshiyasu Ukena, Osamu Akisue, Kenji Kawai, Yuuji Sano | 1990-06-05 |