Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6804185 | Optical pickup and information recording and/or reproducing apparatus including the same | Takanori Maeda, Mitsuru Sato, Masayuki Iwasaki | 2004-10-12 |
| 6751175 | Aberration correcting device and optical pickup apparatus using the same | Takanori Maeda | 2004-06-15 |
| 6683732 | Objective lens collision preventing device and method for manufacturing the same | Takanori Maeda, Yoshitsugu Araki | 2004-01-27 |