Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564054 | Mobile communication system | Keiko Imafuku, Kouji Sugiyama, Hironaga Miyazaki, Koichi Yoshida | 2003-05-13 |
| 6519258 | ATM exchange | Atsushi Tsukazoe, Takashi Kato, Koichi Yoshida | 2003-02-11 |