Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442125 | Optical pickup | Takanori Maeda, Hajime Koyanagi | 2002-08-27 |
| 6370092 | Optical pickup and optical disk drive for use with a high-density optical disk | Takanori Maeda, Hajime Koyanagi | 2002-04-09 |