Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7151887 | Copy controlling method and system of digital contents | — | 2006-12-19 |
| 7050604 | Image data protection technique | Toshihiro Masumoto | 2006-05-23 |
| 6785399 | Receiving apparatus, transmitting apparatus, and communication system which utilize a watermark insertion technique | — | 2004-08-31 |
| 6246802 | Image data processor | Yasuhiko Okuhara, Hirotaka Nakano, Fumihiro Okazaki | 2001-06-12 |
| 6024287 | Card recording medium, certifying method and apparatus for the recording medium, forming system for recording medium, enciphering system, decoder therefor, and recording medium | Kazuhito Takai | 2000-02-15 |
| 5532949 | Barrel shifter | — | 1996-07-02 |
| 5530479 | Method of compression-coding a motion picture and an apparatus for same | — | 1996-06-25 |