Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6480456 | Optical pickup apparatus for reading different types of recording media at different reading wavelengths | Makoto Kawamura, Shinichi Takahashi, Hirokatsu Nagatake, Aki Yoshioka, Mitsutoshi Sugano +2 more | 2002-11-12 |
| 6452880 | Optical pickup apparatus | Makoto Kawamura, Shinichi Takahashi, Hirokatsu Nagatake, Aki Yoshioka, Mitsutoshi Sugano +2 more | 2002-09-17 |
| 6429981 | Optical pickup apparatus | Ko Ishii, Shinichi Takahashi, Mitsutoshi Sugano, Hirokatsu Nagatake, Aki Yoshioka +2 more | 2002-08-06 |
| 6381723 | Error correction device for correcting error in input symbol string | — | 2002-04-30 |