Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967048 | Optical recording medium | Shinji Saito, Toshio Ishida | 2005-11-22 |
| 6924018 | Optical information recording medium | Takako Ozawa, Toshio Ishida | 2005-08-02 |
| 6869656 | Optical information recording medium | Toshio Ishida, Shinji Saito | 2005-03-22 |