Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882758 | Method for extracting formant frequencies | Yutaka Uekawa, Michiyo Goto | 1989-11-21 |
ST
Shuji Takata
Overall (1989): #56,756 of 140,708Top 45%
1
Patents 1989