Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8018822 | Optical information recording medium | Takeshi Otsu, Fumi Hara, Shinichi Kojo, Motomitsu Hagiwara | 2011-09-13 |
| 7936661 | Optical information recording medium | Shinichi Kojo | 2011-05-03 |
| 7903535 | Optical information recording medium and manufacturing method of the same | Toru Fujii, Masashi Satoh, Isao Okitsu | 2011-03-08 |