Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4650713 | Magnetic recording medium and process for its production | Hiroshi Ohta | 1987-03-17 |
| 4582759 | Magnetic recording medium and process for producing same | Hiroshi Ota | 1986-04-15 |
| 4423452 | Magnetic recording medium | Norifumi Kajimoto, Yoshio Kawakami | 1983-12-27 |
| 4420408 | Magnetic recording medium | Norifumi Kajimoto | 1983-12-13 |