Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31251 | Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm.sup.2 or higher | Hajime Nakasugi, Hiroaki Masui, Hiroshi Tamehiro, Seiji Eiro | 1983-05-24 |