Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8509684 | Microwave frequency converter | Akio Funae, Koji Dai | 2013-08-13 |
| 4648129 | Frequency converter | Kenji Hirai | 1987-03-03 |
| 4630003 | FET oscillator exhibiting negative resistance due to high impedance at the source of an FET thereof | Tomohide Soejima, Shigekazu Hori | 1986-12-16 |
| 4588964 | Hermetically sealed microwave solid-state oscillator with dielectric resonator tuned by electromagnetically coupled terminating admittance | Kenji Hirai | 1986-05-13 |
| 4547750 | FET Oscillator exhibiting negative resistance due to high impedance at the source of an FET thereof | Tomohide Soejima, Shigekazu Hori | 1985-10-15 |