Issued Patents 2002
Showing 1–3 of 3 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, Aki Yoshioka, Mitsutoshi Sugano, Ko Ishii +2 more | 2002-11-12 |
| 6452880 | Optical pickup apparatus | Makoto Kawamura, Shinichi Takahashi, Aki Yoshioka, Mitsutoshi Sugano, Ko Ishii +2 more | 2002-09-17 |
| 6429981 | Optical pickup apparatus | Ko Ishii, Shinichi Takahashi, Mitsutoshi Sugano, Aki Yoshioka, Makoto Kawamura +2 more | 2002-08-06 |