Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7328167 | Service reservation system | Kazuhiro Kusama, Kenichi Yoshida | 2008-02-05 |
| 7016665 | Charging method and terminal equipment in the information and communication network system | Tsuyoshi Tamaki, Masaaki Shida, Tomoaki Ishifuji, Nobukazu Doi | 2006-03-21 |
| 6675007 | Charging method and terminal equipment in the information and communication network system | Tsuyoshi Tamaki, Masaaki Shida, Tomoaki Ishifuji, Nobukazu Doi | 2004-01-06 |