Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7619962 | Optical disc and method of producing the same | Takashi Ohgo, Itsuro Nakamura, Takayuki Onizawa, Kenji Oishi | 2009-11-17 |
| 7567499 | Optical disc and method of producing the same | Itsuro Nakamura, Takayuki Onizawa, Kenji Oishi, Takashi Ohgo | 2009-07-28 |