Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7480463 | LED drive circuit | Kenji Yamamoto | 2009-01-20 |
| 4866689 | Focusing and tracking error control system for an optical recording-reproducing device | — | 1989-09-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7480463 | LED drive circuit | Kenji Yamamoto | 2009-01-20 |
| 4866689 | Focusing and tracking error control system for an optical recording-reproducing device | — | 1989-09-12 |