Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7331055 | Information recording and reproducing medium with areas for recording information optically on one side and recording visual information on another side | Keiichi Onodera, Takeshi Takahashi | 2008-02-12 |
| 7215352 | Information recording system and information recording method | Keiichi Onodera, Takeshi Takahashi | 2007-05-08 |
| 6778761 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Yoshiaki Moriyama, Tokihiro Takahashi, Hidehiro Ishii, Takao Sawabe, Junichi Yoshio | 2004-08-17 |
| 6661763 | Optical disk recording apparatus and recording control method for recording data in a lead-in area and a program area | Satoshi Koizumi | 2003-12-09 |
| 6014495 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Yoshiaki Moriyama, Tokihiro Takahashi, Hidehiro Ishii, Takao Sawabe, Junichi Yoshio | 2000-01-11 |
| 5812505 | Information reading system with controlled optical access | Yasuhisa Shimoda | 1998-09-22 |
| 5227787 | Digital data converting system | — | 1993-07-13 |