Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7027742 | Optical single-sideband modulated signal generator | Kiyoshi Nakagawa | 2006-04-11 |
| 5590364 | Signal processing apparatus | Kohtaro Hanzawa, Goro Sakata | 1996-12-31 |
| 5442125 | Signal processing apparatus for repeatedly performing a same processing on respective output channels in time sharing manner | Kohtaro Hanzawa, Goro Sakata | 1995-08-15 |
| 5283387 | Musical sound generator with single signal processing means | — | 1994-02-01 |
| 5255215 | Digital filter system with changeable cutoff frequency | Goro Sakata, Kohtaro Hanzawa, Ryutaro Hayashi | 1993-10-19 |
| 5140541 | Digital filter system with changeable cutoff frequency | Goro Sakata, Kohtaro Hanzawa, Ryutaro Hayashi | 1992-08-18 |
| 5010799 | Electronic keyboard instrument with key displacement sensors | Kohtaro Hanzawa | 1991-04-30 |