Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868878 | Sound field correction system | Yoshiro Kunugi, Akio Tokumo, Yoshio Sasaki, Shinjiro Kato, Shuuichi Mori +2 more | 1989-09-19 |
TY
Toshikazu Yoshimi
Overall (1989): #47,738 of 140,708Top 35%
1
Patents 1989