Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7164433 | Display device, display method, program recording medium, and program | Kazuhiro Suzuki, Tetsuo Yutani | 2007-01-16 | $1,453,000 |
| 7096237 | Recording and/or reproduction apparatus, file management method and providing medium | Akio Ishikawa | 2006-08-22 | $1,040,000 |
| 6728175 | Information recording method and apparatus | Akio Ishikawa | 2004-04-27 | $848,000 |
| 6665690 | System and method for determining respective lengths of recording units used for recording different types of data on disc medium | Akio Ishikawa | 2003-12-16 | $1,865,000 |
| 6501905 | File management apparatus and method, and recording medium including same | — | 2002-12-31 | $477,000 |
| 6356521 | Information recording method and apparatus | Akio Ishikawa | 2002-03-12 | $899,000 |
| 5978336 | Optical disk finalization method and optical disk finalization apparatus | Norichika Mine, Toru Takeda, Shoei Kobayashi | 1999-11-02 | $628,000 |