Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831790 | Optical element, method for producing the same, and optical pickup | Akira Kouchiyama | 2004-12-14 |
| 6804885 | Method for manufacturing printer device | — | 2004-10-19 |
| 6787211 | Optical recording medium and its manufacturing method | — | 2004-09-07 |
| 6773868 | Method for producing recording medium, method for producing stamper of recording medium, apparatus for producing recording medium, and apparatus for producing stamper of recording medium | Akira Kouchiyama | 2004-08-10 |
| 6747811 | Optical system, method of producing optical system, and optical pickup | Akira Kouchiyama | 2004-06-08 |
| 6724544 | Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus | Akira Kouchiyama | 2004-04-20 |
| 6683845 | Optical recording medium, method of producing same, and optical recording and reproduction device | Yuji Kuroda, Isao Ichimura, Kiyoshi Osato, Kimihiro Saito | 2004-01-27 |
| 6683846 | Information recording disc having an anti-reflection layer and information recording/reproducing apparatus | Isao Ichimura, Yuji Kuroda, Kiyoshi Osato | 2004-01-27 |