Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870685 | Voice signal coding method | Hiroki Uchiyama, Wasaku Yamada | 1989-09-26 |
YK
Yuichi Kadokawa
Overall (1989): #39,700 of 140,708Top 30%
1
Patents 1989