Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788821 | Digital information embedding/extracting apparatus and method, and medium including a program for executing the method recorded thereon | Hisashi Inoue | 2004-09-07 |
| 6728409 | Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon | Hisashi Inoue | 2004-04-27 |
| 6693965 | Apparatus for and method of embedding and extracting digital information, and medium having program for carrying out the method recorded thereon | Hisashi Inoue | 2004-02-17 |