Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888792 | Multi-level quadrature amplitude modulation and demodulation system | Kenzo Kobayashi | 1989-12-19 |
TY
Takeshi Yagi
Overall (1989): #52,033 of 140,708Top 40%
1
Patents 1989