Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7149174 | Optical pickup | Hitoshi Furuhata, Hirokatsu Nagatake, Akira Miura | 2006-12-12 |
| 6845078 | Optical pickup apparatus | Hitoshi Furuhata, Masayuki Koyama | 2005-01-18 |
| 6813235 | Optical pickup apparatus an optical axis correcting element | Hitoshi Furuhata, Nobuo Ishida, Taichi Akiba | 2004-11-02 |
| 6643246 | Optical pickup apparatus | Hitoshi Furuhata | 2003-11-04 |