Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570080 | Method and system for supplying contents via communication network | Yutaka Hasegawa, Satoru Umezawa, Hiroaki Takahashi | 2003-05-27 |
| 6552254 | Method and system for supplying contents via communication network | Yutaka Hasegawa, Satoru Umezawa, Hiroaki Takahashi | 2003-04-22 |