Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7129407 | Apparatus and computer program for practicing musical instrument | Satoshi Hiratsuka | 2006-10-31 |
CK
Chieko Koga
Overall (All Time): #3,432,699 of 4,157,543Top 85%
1
Patents All Time