Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667952 | Optical storage medium having a specific light transmitting layer for small laser beam and high linear velocity | Hideki Hirata, Tatsuya Kato | 2003-12-23 |
| 6600717 | Optical information medium | Naoki Hayashida, Hideki Hirata | 2003-07-29 |
| 6590856 | Optical information medium | Takuya Tsukagoshi, Hideki Hirata, Naoki Hayashida | 2003-07-08 |
| 6576319 | Optical information medium and making method | Jiro Yoshinari, Takuya Tsukagoshi | 2003-06-10 |