Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4464433 | Magnetic recording medium | Hitoshi Azegami | 1984-08-07 |
| 4420537 | Magnetic recording medium having cobalt adsorbed iron oxide layer | Masashi Hayama, Hiroto Saguchi | 1983-12-13 |
| 4414289 | High density magnetic recording medium | Fujio Shibata, Chihoto Mikura | 1983-11-08 |
| 4285825 | Method of producing magnetic coating material for magnetic recording media | Yukihiro Isobe, Masashi Hayama | 1981-08-25 |