Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342668 | Magnetic recording medium having improved electromagnetic conversion characteristics and durability | Fumio Echigo, Masahiro Saida, Naoko Mizuno, Hideo Hatanaka | 1994-08-30 |