Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7864934 | Telephone used in a telephone system for transmitting data from an authorized telephone with speech authority to an unauthorized telephone without speech authority | Tomohiro Ando, Rei Takahashi, Kazuka Higashi | 2011-01-04 |
| 7664518 | Group call server, group call system, terminal, and group call control method | Rei Takahashi, Tomohiro Ando | 2010-02-16 |