Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620766 | Magneto-optical disk | Masanori Shibahara, Michiki Naganawa | 1997-04-15 |
| 5593789 | Magneto-optical recording medium | Hajime Utsunomiya, Masanori Kosuda, Hiroyasu Inoue | 1997-01-14 |