Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D322268 | Electronic key board musical instrument | — | 1991-12-10 |
| D322269 | Electronic keyboard musical instrument | — | 1991-12-10 |
| D322086 | Electronic piano | Kazuyuki Mizushima | 1991-12-03 |
| D320404 | Electronic piano | Kazuyuki Mizushima | 1991-10-01 |
| D314204 | Electronic keyboard musical instrument | — | 1991-01-29 |
| D313031 | Electronic keyboard musical instrument | — | 1990-12-18 |
| D312651 | Electronic keyboard musical instrument | — | 1990-12-04 |