Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361323 | Signal encoding device | Shuichi Yoshikawa, Yuji Nishiwaki, Shuichi Kawama, Tomokazu Morio, Atsunori Kitoh | 1994-11-01 |
| 5343420 | Signal discrimination circuit | Syuuichi Yoshikawa, Michio Ikeuchi | 1994-08-30 |
| 5325463 | IC card with built-in voice synthesizing function | Shuichi Yoshikawa, Yuji Nishiwaki | 1994-06-28 |