Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10418006 | Laminated plyboard for musical instrument, method for manufacturing the same, and musical instrument | Hiroaki Ohmuro, Hironao Nagashima | 2019-09-17 |
| 6949701 | Drumhead | — | 2005-09-27 |
| 6762353 | Percussion instrument head | — | 2004-07-13 |
| 6689944 | Drum acoustic wire and drum | — | 2004-02-10 |
| 5587544 | Drum | Junji Fujii | 1996-12-24 |
| 4787286 | Snare mechanism for a drum | — | 1988-11-29 |