Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886714 | Platelike magnetic powder and a recording medium which uses the platelike magnetic powder | Hideo Torii, Masaki Aoki, Hideaki Komoda, Nobuyuki Aoki, Ikuo Ota | 1989-12-12 |