Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600714 | Optical recording medium, optical pickup and optical recording and/or reproducing apparatus | Isao Ichimura, Koichiro Kishima, Kenji Yamamoto | 2003-07-29 |
| 6551679 | Optical recording medium | Yutaka Kasami | 2003-04-22 |
| 6552968 | Optical recording medium, method of producing same, and optical recording and reproduction device | Koichiro Kishima, Isao Ichimura, Kiyoshi Osato, Kimihiro Saito | 2003-04-22 |