Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868878 | Sound field correction system | Akio Tokumo, Toshikazu Yoshimi, Yoshio Sasaki, Shinjiro Kato, Shuuichi Mori +2 more | 1989-09-19 |
YK
Yoshiro Kunugi
Overall (1989): #40,871 of 140,708Top 30%
1
Patents 1989