Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7619962 | Optical disc and method of producing the same | Takashi Ohgo, Itsuro Nakamura, Naoyuki Nakagawa, Kenji Oishi | 2009-11-17 |
| 7567499 | Optical disc and method of producing the same | Itsuro Nakamura, Naoyuki Nakagawa, Kenji Oishi, Takashi Ohgo | 2009-07-28 |
| 6942481 | Disk production apparatus and disk produced by disk production apparatus | Akira Nishizawa, Shinji Ohta | 2005-09-13 |