Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967908 | Optical pickup device with focus error detecting optical element and method for focus error detection | Hajime Koyanagi | 2005-11-22 |
| 6909686 | Aberration correcting optical unit, optical pickup apparatus and information recording/reproducing apparatus with single and multi-layer electrodes | Masayuki Iwasaki | 2005-06-21 |
| 6882482 | Liquid-crystal lens and method and apparatus for driving the same | — | 2005-04-19 |
| 6859429 | Aberration correcting unit, optical pickup apparatus, and recording/reproducing apparatus | Masayuki Iwasaki | 2005-02-22 |