Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10453433 | Tone bar woody material, tone bar percussion instrument, and production method of tone bar woody material | Kazuki SOGA, Tatsuya Hiraku | 2019-10-22 |
| 10195828 | Acoustic material and musical instrument | Toshihisa Yamazaki, Hidefumi Yamauchi | 2019-02-05 |