Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5118962 | Power supply backup circuit | Takaaki Ishii | 1992-06-02 |
| 5054053 | Speech recognition system for telephony | Hiroki Yoshida, Takaaki Ishii, Hiroshi Sato, Makoto Hoshino | 1991-10-01 |
| 5042063 | Telephone apparatus with voice activated dialing function | Hiroki Yoshida, Takaaki Ishii, Hiroshi Sato, Makoto Hoshino | 1991-08-20 |
| 5027266 | Voltage generator with voltage multiplier | Takaaki Ishii, Katsuhiko Kita | 1991-06-25 |
| 5010577 | Electronic volume device | Takaaki Ishii | 1991-04-23 |
| 4939769 | Cordless telephone system | Koichi Ito, Isao Sasaki | 1990-07-03 |