Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7981494 | Optical informaton recording medium | Isao Matsuda, Takeshi Otsu, Fumi Hara | 2011-07-19 |
| 7867595 | Optical information recording medium | Takeshi Otsu, Akimasa Miyata, Motomitsu Hagiwara, Isao Matsuda, Fumi Hara +1 more | 2011-01-11 |