Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675634 | Variable-capacitance tuning circuit for high-frequency signals | Seiji Matsushita, Akira Fujishima, Joji Nakamura | 1987-06-23 |
IA
Isao Arika
Overall (All Time): #3,977,139 of 4,157,543Top 100%
1
Patents All Time