Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189241 | Pickup apparatus for detecting string vibration free from external inductive noise | — | 1993-02-23 |
| 5136912 | Electronic tone generation apparatus for modifying externally input sound | Shigenori Morikawa, Kohtaro Hanzawa | 1992-08-11 |
| 5050216 | Effector for electronic musical instrument | Kohtaro Hanzawa, Shigenori Morikawa | 1991-09-17 |
| 5025700 | Electronic musical instrument with signal modifying apparatus | Shigenori Morikawa, Kohtaro Hanzawa | 1991-06-25 |
| 4864625 | Effector for electronic musical instrument | Kohtaro Hanzawa, Shigenori Morikawa | 1989-09-05 |
| 4781097 | Electronic drum instrument | Shigeru Uchiyama, Kenichi Tsutsumi | 1988-11-01 |
| 4754680 | Overdubbing apparatus for electronic musical instrument | Shigenori Morikawa, Kohtaro Hanzawa | 1988-07-05 |
| 4368524 | Semiconductor device | Hideki Arakawa | 1983-01-11 |
| 4321489 | Voltage detection circuit | Mitsuo Higuchi, Kohichi Maeda | 1982-03-23 |