Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5835460 | Multi-layered optical disk reproducing method with focus search | — | 1998-11-10 |
| 5793720 | Optical disk and reproducing apparatus including a focus search control device | — | 1998-08-11 |
| 5754507 | Multi-layered optical disk reproducing apparatus with focus search | — | 1998-05-19 |
| 5056075 | Optical disk player with disk size and pickup location responsive skew servo control | Keiji Maruta | 1991-10-08 |