Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9685146 | Drum beater and drum foot pedal apparatus | Fumihiro Shigenaga | 2017-06-20 |
| 5313867 | Glockenspiel equipped with hammer heads different in hardness for changing tone color | Norishige Terada | 1994-05-24 |