Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7538628 | Harmonic oscillator using transmission line resonator | Takayuki Tanaka, Fumio Asamura, Kenji Kawahata, Katsuaki Sakamoto | 2009-05-26 |
| 7187337 | Planar antenna with slot line | Eisuke Nishiyama, Fumio Asamura, Takeo Oita | 2007-03-06 |
| 7145405 | Planar high frequency oscillator | Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2006-12-05 |
| 7145404 | Injection locked high frequency oscillator | Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2006-12-05 |
| 7119625 | High frequency oscillator using transmission line resonator | Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2006-10-10 |
| 7095373 | Planar array antenna | Eisuke Nishiyama, Fumio Asamura, Takeo Oita | 2006-08-22 |
| 7061333 | Slot line based high frequency oscillator using two-port element | Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2006-06-13 |
| 6992635 | Microstrip line type planar array antenna | Eisuke Nishiyama, Fumio Asamura, Takeo Oita | 2006-01-31 |
| 6917332 | Multielement planar antenna | Eisuke Nishiyama, Kozo Egashira, Fumio Asamura, Takeo Oita | 2005-07-12 |
| 6909333 | Coplanar line based high frequency oscillator | Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2005-06-21 |
| 6825816 | Two-element and multi-element planar array antennas | Eisuke Nishiyama, Fumio Asamura, Takeo Oita | 2004-11-30 |
| 6798305 | High frequency oscillator using transmission line resonator | Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2004-09-28 |
| 6798384 | Multi-element planar array antenna | Eisuke Nishiyama, Fumio Asamura, Takeo Oita | 2004-09-28 |
| 6798319 | High-frequency filter | Eisuke Nishiyama, Yoshifumi Kawamura, Fumio Asamura, Takeo Oita | 2004-09-28 |
| 6771137 | High-frequency oscillator | Takayuki Tanaka, Fumio Asamura, Kenji Kawahata, Takeo Oita | 2004-08-03 |
| 6756857 | Planar circuit | Eisuke Nishiyama, Takayuki Tanaka, Fumio Asamura, Takeo Oita | 2004-06-29 |
| 6753817 | Multi-element planar array antenna | Eisuke Nishiyama, Fumio Asamura, Takeo Oita | 2004-06-22 |
| 6717480 | Multielement oscillator employing higher mode planar resonator | Fumio Asamura, Takeo Oita | 2004-04-06 |
| 6717481 | Injection-locked high-frequency oscillator | Fumio Asamura, Takeo Oita | 2004-04-06 |
| 6703904 | High frequency oscillator | Fumio Asamura, Takeo Oita | 2004-03-09 |
| 4906954 | Directional coupler device | Toshiaki Tanaka | 1990-03-06 |