Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10195828 | Acoustic material and musical instrument | Toshihisa Yamazaki, Eri HIRAI | 2019-02-05 |
HY
Hidefumi Yamauchi
Overall (All Time): #2,840,787 of 4,157,543Top 70%
1
Patents All Time