Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D313035 | Electronic keyboard musical instrument | Tatsuo Katsuhara | 1990-12-18 |
| D305772 | Electronic music synthesizer | — | 1990-01-30 |
SK
Shigeru Kitsuyu
Overall (All Time): #2,321,438 of 4,157,543Top 60%
2
Patents All Time