Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6410839 | Apparatus and method for automatic musical accompaniment while guiding chord patterns for play | Takashi Yahata | 2002-06-25 |
RO
Rika Okubo
Overall (All Time): #3,549,281 of 4,157,543Top 90%
1
Patents All Time