Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7012864 | Optical disk recorder for writing data with variable density | Takuya Tamaru, Tatsuo Fushiki, Katsuichi Osakabe, Yusuke Konagai, Akira Usui +2 more | 2006-03-14 |
| 6980495 | Optical recording apparatus with interleaving blank rounds into spiral track | Katsuichi Osakabe, Akira Usui, Shinji Aoshima, Hiromitsu Shibata | 2005-12-27 |