Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851258 | Method for preparing magnetic particles for magnetic-recording media | Shigefumi Kuroyama | 1989-07-25 |
| 4814590 | Method and apparatus for transmitting data | — | 1989-03-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851258 | Method for preparing magnetic particles for magnetic-recording media | Shigefumi Kuroyama | 1989-07-25 |
| 4814590 | Method and apparatus for transmitting data | — | 1989-03-21 |