Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870685 | Voice signal coding method | Yuichi Kadokawa, Wasaku Yamada | 1989-09-26 |
HU
Hiroki Uchiyama
Overall (1989): #103,757 of 140,708Top 75%
1
Patents 1989