Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6674854 | Telephone terminal device | Hiroshi Harada | 2004-01-06 |
| 6570772 | Portable terminal device | Takashi Yamaguchi, Naoki Koga | 2003-05-27 |
| 5524138 | Automatic telephone message management apparatus | — | 1996-06-04 |