Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610555 | Low-voltage driven, audio signal amplifying apparatus and a portable acoustic system using said apparatus | Hiroyuki Funahashi | 1997-03-11 |
IY
Isao Yamamoto
Overall (1997): #137,828 of 185,788Top 75%
1
Patents 1997