Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5469769 | Soundboard for musical instruments | Shuichi Sawada, Yoshihiko Murase | 1995-11-28 |
| 5072642 | Reinforced sound board used in musical instrument | — | 1991-12-17 |
KI
Katsuhiko Imagawa
Overall (All Time): #2,290,548 of 4,157,543Top 60%
2
Patents All Time