Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7308637 | Data recording/reproducing device, data recording/reproducing method, program, and recording medium | Toshiyuki Nakagawa, Yoshio Muraoka | 2007-12-11 |
| 7188299 | Data-recording/reproduction apparatus and data-recording/reproduction method | Toshiyuki Nakagawa, Keitarou Kondou, Yoshihide Shimpuku | 2007-03-06 |
| 6862150 | Information storage device and defect information management method | — | 2005-03-01 |