Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604809 | Sound field control system | Hiroshi Tsubonuma | 1997-02-18 |
| 5604810 | Sound field control system for a multi-speaker system | — | 1997-02-18 |
HY
Hirofumi Yanagawa
Overall (1997): #37,864 of 185,788Top 25%
2
Patents 1997