Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11278344 | Power feed system | Tetsuo Ikeda, Ryosuke Tsutsumi | 2022-03-22 |
| 8106847 | Communication circuit, communication apparatus, impedance matching circuit and impedance matching circuit designing method | Keiji Yoshida | 2012-01-31 |
| 7498897 | Impedance matching circuit, and semiconductor element and radio communication device using the same | Keiji Yoshida, Tadaaki Tsuchiya | 2009-03-03 |