Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675632 | Telephone exchange network using telephone exchanges with speech recognition | Toshiyuki Odaka, Akio Amano, Tetsuo Takemura, Toshiaki Suzuki, Ryujiro Muramatsu | 1997-10-07 |