Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7867595 | Optical information recording medium | Takeshi Otsu, Motomitsu Hagiwara, Isao Matsuda, Fumi Hara, Shingo Kato +1 more | 2011-01-11 |
| 7835257 | Optical information recording medium | Motomitsu Hagiwara, Takeshi Otsu, Yuji Tomizawa | 2010-11-16 |
| 7830778 | Optical information recording medium | Isao Matsuda, Fumi Hara, Takeshi Otsu, Motomitsu Hagiwara | 2010-11-09 |