Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870685 | Voice signal coding method | Yuichi Kadokawa, Hiroki Uchiyama | 1989-09-26 |
WY
Wasaku Yamada
Overall (1989): #45,336 of 140,708Top 35%
1
Patents 1989