Issued Patents 2004
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825816 | Two-element and multi-element planar array antennas | Masayoshi Aikawa, Eisuke Nishiyama, Fumio Asamura | 2004-11-30 |
| 6798384 | Multi-element planar array antenna | Masayoshi Aikawa, Eisuke Nishiyama, Fumio Asamura | 2004-09-28 |
| 6798319 | High-frequency filter | Masayoshi Aikawa, Eisuke Nishiyama, Yoshifumi Kawamura, Fumio Asamura | 2004-09-28 |
| 6798305 | High frequency oscillator using transmission line resonator | Masayoshi Aikawa, Takayuki Tanaka, Fumio Asamura | 2004-09-28 |
| 6791421 | Input-switching voltage-controlled oscillator and PLL-controlled oscillator | — | 2004-09-14 |
| 6771137 | High-frequency oscillator | Masayoshi Aikawa, Takayuki Tanaka, Fumio Asamura, Kenji Kawahata | 2004-08-03 |
| 6762651 | High frequency crystal oscillator and high frequency signal generating method | — | 2004-07-13 |
| 6756857 | Planar circuit | Masayoshi Aikawa, Eisuke Nishiyama, Takayuki Tanaka, Fumio Asamura | 2004-06-29 |
| 6756863 | High-frequency oscillator of frequency switching type and high-frequency oscillation method | — | 2004-06-29 |
| 6753817 | Multi-element planar array antenna | Masayoshi Aikawa, Eisuke Nishiyama, Fumio Asamura | 2004-06-22 |
| 6717481 | Injection-locked high-frequency oscillator | Masayoshi Aikawa, Fumio Asamura | 2004-04-06 |
| 6717480 | Multielement oscillator employing higher mode planar resonator | Masayoshi Aikawa, Fumio Asamura | 2004-04-06 |
| 6707347 | Crystal oscillator that utilizes the power transistor of an output amplifier to heat the crystal resonator | — | 2004-03-16 |
| 6703904 | High frequency oscillator | Masayoshi Aikawa, Fumio Asamura | 2004-03-09 |