Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620233 | Facsimile transceiver utilizing orthogonal conversion | Mutsuo Ogawa, Kazuyuki Hara, Mitsuru Kondo | 1986-10-28 |
| 4246442 | Method and device for confirming correct connection between data terminals in data communication system using telephone network | — | 1981-01-20 |