Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6551680 | Optical recording medium | Toru Abiko, Fuminori Takase | 2003-04-22 |
| 6551681 | Optical recording medium | Toru Abiko, Fuminori Takase | 2003-04-22 |
| 6548138 | Optical recording medium | Toru Abiko, Ayumi Konishi, Tomoki Kanesaka | 2003-04-15 |