Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6594204 | Lens holder, method for manufacturing lens holder, metal die for producing lens holder and objective lens device | Kenji Yamamoto, Kiyoshi Osato | 2003-07-15 |
| 6570827 | OPTICAL ELEMENT FOR CORRECTION OF CHROMATIC ABERRATION, OPTICAL PICK-UP DEVICE HAVING OPTICAL ELEMENT FOR CORRECTION OF CHROMATIC ABERRATION, OPTICAL REPRODUCING DEVICE HAVING OPTICAL PICK-UP DEVICE AND OPTICAL RECORDING AND REPRODUCING DEVICE | Kenji Yamamoto, Isao Ichimura, Toshio Watanabe, Akira Suzuki, Kiyoshi Osato | 2003-05-27 |