Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8270271 | Optical recording medium and information recording method | Ippei Ogawa, Takuo Ohishi | 2012-09-18 |
| 8081549 | Information recording and reproducing apparatus and a method of controlling an information recording and reproducing apparatus | — | 2011-12-20 |
| 7974520 | Information recording ensuring compatibility with different types of recording media | Tsutomu Motohashi | 2011-07-05 |
| 7403457 | Method and apparatus for recording information with a multi-layer structure | Ippei Ogawa, Takuo Ohishi | 2008-07-22 |
| 7385897 | Information recording device, information recording method, information recording program, and recording medium | — | 2008-06-10 |
| 7068578 | Information recording device, information recording method, information recording program, and recording medium | — | 2006-06-27 |