Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667947 | Optical multi-layer information recordating medium | Takanori Maeda, Makoto Sato, Katsuhiro Koike, Yoshitsugu Araki | 2003-12-23 |
| 6594091 | Optical pickup | Takanori Maeda, Katsuhiro Koike, Makoto Sato | 2003-07-15 |
| 6584065 | Information recording medium apparatus for forming the same and information recording and reproducing systems | Takanori Maeda | 2003-06-24 |
| 6529339 | Lens and production method therefor | Takanori Maeda, Katsuhiro Koike, Makoto Sato | 2003-03-04 |
| 6518555 | Polarization hologram lens, optical pickup, information reproduction apparatus and information recording apparatus | Yoshitsugu Araki | 2003-02-11 |