Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6090226 | Steel plate excellent in brittle crack propagation arrest characteristics and low temperature toughness and process for producing same | Toshiei Hasegawa, Tadashi Ishikawa | 2000-07-18 |
| 5389164 | Production method of strong and tough thick steel plate | Atsuhiko Yoshie, Takashi Fujita, Masaaki Fujioka, Hiroki Miyawaki | 1995-02-14 |