Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7009929 | Optical pickup, including a mirror for changing light polarization direction, and information reproducing apparatus having the same | — | 2006-03-07 |
| 6798727 | Optical pickup apparatus | Shinichi Takahashi, Mitsutoshi Sugano, Ko Ishii, Makoto Kawamura, Yoshihiro Seita | 2004-09-28 |
| 6781947 | Optical pickup apparatus | Shinichi Takahashi, Mitsutoshi Sugano, Ko Ishii, Yoshihiro Seita, Makoto Kawamura | 2004-08-24 |