Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846628 | Magnetic disc | Fumiaki Yokoyama, Daisuke Mouri | 1998-12-08 |
| 5618448 | Glass substrate having surface protrusions for use as a magnetic disc substrate | Fumiaki Yokoyama, Daisuke Mouri | 1997-04-08 |