Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7061902 | Telephone communication system and method for controlling the telephone communication system | Noriyuki Fukuyama, Masanobu Morinaga, Masahiro Matsuda, Yoshiaki Inoue, Yasutaka Iwasaki +1 more | 2006-06-13 |
| 5936941 | Communication system including management terminal and plurality of communication terminals and enabling quick maintenance and management | Hidefumi Kondo | 1999-08-10 |