Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4662937 | Process for production of high-manganese iron alloy by smelting reduction | Hiroyuki Katayama, Masatoshi Kuwabara, Hiroyuki Kajioka, Masaki Fujita, Kenji Shibata +2 more | 1987-05-05 |
| 4565574 | Process for production of high-chromium alloy by smelting reduction | Hiroyuki Katayama, Masatoshi Kuwabara, Chikara Saito, Tuneyuki Inoue, Masaki Fujita | 1986-01-21 |
| 4410360 | Process for producing high chromium steel | Hiroyuki Katayama, Chikara Saito, Hirofumi Wakimoto | 1983-10-18 |