Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5199071 | Modem mode matching method with PBX dial-in | Kenichi Abe, Kenji Kurashina, Kenzou Kaji, Kikuo Sumiyoshi | 1993-03-30 |
| 5153897 | Automatically controlling the operation mode of data circuit terminating equipment in a communication system | Kikuo Sumiyoshi, Kenichi Abe, Kenji Kurashina, Kenzou Kaji | 1992-10-06 |