Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4662937 | Process for production of high-manganese iron alloy by smelting reduction | Hiroyuki Katayama, Hidetake Ishikawa, Hiroyuki Kajioka, Masaki Fujita, Kenji Shibata +2 more | 1987-05-05 |
| 4565574 | Process for production of high-chromium alloy by smelting reduction | Hiroyuki Katayama, Hidetake Ishikawa, Chikara Saito, Tuneyuki Inoue, Masaki Fujita | 1986-01-21 |