Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7436944 | Repeating device | Takahiro Yoshida, Takahiro Sasaki, Tadashi Saito | 2008-10-14 |
| 7149301 | Repeating device, telephone set, and recording medium | Takahiro Yoshida, Takahiro Sasaki, Tadashi Saito | 2006-12-12 |
| 6917676 | Telephone set, repeating device and recording medium | Takahiro Yoshida, Takahiro Sasaki, Tadashi Saito | 2005-07-12 |