Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881258 | Portable type mobile radio telephone | Ryoichi Kaiwa, Michiyoshi Kudo, Keiki Kobayashi, Naotomo Adachi | 1989-11-14 |
YS
Yuichiro Suganuma
Overall (1989): #39,321 of 140,708Top 30%
1
Patents 1989