Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7020063 | Optical pickup | Tadashi Adachi, Masayoshi Sugawara | 2006-03-28 |
| D509501 | Optical disc recording reproduction apparatus | Keiichi Sato, Atsushi Kikuchi, Atsushi Kirii | 2005-09-13 |