Issued Patents 2011
Showing 1–1 of 1 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 |