Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7489685 | Digital broadcast receiving apparatus | Keishi Sugimoto | 2009-02-10 |
| 7184652 | Digital video recording/reproduction apparatus and program therefor | Keishi Sugimoto | 2007-02-27 |
| 6470496 | Control program downloading method for replacing control program in digital broadcast receiving apparatus with new control program sent from digital broadcast transmitting apparatus | Keishi Sugimoto | 2002-10-22 |