Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8018822 | Optical information recording medium | Takeshi Otsu, Fumi Hara, Shinichi Kojo, Atsuo Shimizu | 2011-09-13 |
| 7867595 | Optical information recording medium | Takeshi Otsu, Akimasa Miyata, Isao Matsuda, Fumi Hara, Shingo Kato +1 more | 2011-01-11 |