Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844978 | Magnetic recording medium | Masatoshi Nakayama, Kunihiro Ueda | 1989-07-04 |
| 4824724 | Magnetic recording medium | Kunihiro Ueda, Masatoshi Nakayama | 1989-04-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844978 | Magnetic recording medium | Masatoshi Nakayama, Kunihiro Ueda | 1989-07-04 |
| 4824724 | Magnetic recording medium | Kunihiro Ueda, Masatoshi Nakayama | 1989-04-25 |