Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5280583 | System and method for performing interlocution at a plurality of terminals connected to communication network | Yoshiyuki Nakayama, Kenjiro Mori, Kazuo Takaragi | 1994-01-18 |