Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872162 | Communication system | Masao Ikezaki, Yukiko Ono, Hiroshi Sasanuma | 1989-10-03 |
ST
Shotaro Tanaka
Overall (1989): #56,700 of 140,708Top 45%
1
Patents 1989