Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671675 | Metering the flow of electronic information | — | 2003-12-30 |
| 6560339 | Electronic watermarking method, digital information distribution system using such method, and storage medium storing program of such method | — | 2003-05-06 |
| 6535616 | Information processing apparatus, method and memory medium therefor | Junichi Hayashi | 2003-03-18 |
| 6516318 | Management system and terminal apparatus to manage and control distribution and use of software and the like | Kenji Nakamura | 2003-02-04 |
| 6513118 | Electronic watermarking method, electronic information distribution system, image filing apparatus and storage medium therefor | — | 2003-01-28 |