Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680464 | Sound field controlling device | — | 1997-10-21 |
MI
Masayuki Iwamatsu
Overall (1997): #109,931 of 185,788Top 60%
1
Patents 1997