Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881258 | Portable type mobile radio telephone | Michiyoshi Kudo, Keiki Kobayashi, Yuichiro Suganuma, Naotomo Adachi | 1989-11-14 |
RK
Ryoichi Kaiwa
Overall (1989): #59,842 of 140,708Top 45%
1
Patents 1989