Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10476436 | Resonant unit, voltage controlled oscillator (VCO) implementing the same, and push-push oscillator implementing a pair of VCOs | Takeshi Kawasaki | 2019-11-12 |
| 10181629 | Marchand balun | Osamu Anegawa | 2019-01-15 |
| 10090816 | Current reuse amplifier | Seiji Fujita | 2018-10-02 |
| 9543630 | Electronic device | Koji Tsukashima, Seiji Fujita | 2017-01-10 |
| 9197159 | Mixer | Seiji Fujita | 2015-11-24 |
| 8975946 | Mixer | Seiji Fujita | 2015-03-10 |
| 8797101 | High frequency amplifier circuit | Masaki Imagawa | 2014-08-05 |
| 8543078 | Harmonic mixer circuit | Osamu Anegawa, Osamu Baba, Miki Kubota | 2013-09-24 |
| 8508302 | Electronic circuit | Seiji Fujita | 2013-08-13 |
| 8264279 | Electronic circuit | Osamu Anegawa, Osamu Baba, Miki Kubota | 2012-09-11 |
| 7561001 | Electronic oscillator circuit device | Osamu Baba | 2009-07-14 |
| 7532085 | Electronic device | Hideki Tango, Osamu Anegawa | 2009-05-12 |
| 6600381 | Microwave voltage-controlled-oscillator | Osamu Baba | 2003-07-29 |
| 6529051 | Frequency multiplier without spurious oscillation | Osamu Baba | 2003-03-04 |
| 6384785 | Heterogeneous multi-lamination microstrip antenna | Kenji Kamogawa | 2002-05-07 |
| 6150897 | Balun circuit with a cancellation element in each coupled line | Kenjiro Nishikawa, Ichihiko Toyoda | 2000-11-21 |
| 5973575 | Fully monolithic voltage controlled oscillator with wide tuning range | Kenji Kamogawa, Kenjiro Nishikawa, Ichihiko Toyoda | 1999-10-26 |
| 5739560 | High frequency masterslice monolithic integrated circuit | Ichihiko Toyoda, Kenjiro Nishikawa, Kenji Kamogawa | 1998-04-14 |
| 5661437 | Negative feedback variable gain amplifier circuit | Kenjiro Nishikawa | 1997-08-26 |
| 5652157 | Forming a gate electrode on a semiconductor substrate by using a T-shaped dummy gate | Makoto Hirano, Kazuyoshi Asai, Yuhki Imai, Masami Tokumitsu, Ichihiko Toyoda | 1997-07-29 |
| 5639686 | Method of fabricating circuit elements on an insulating substrate | Makoto Hirano, Kazuyoshi Asai, Yuhki Imai, Masami Tokumitsu, Ichihiko Toyoda | 1997-06-17 |
| 5634208 | Multilayer transmission line using ground metal with slit, and hybrid using the transmission line | Kenjiro Nishikawa, Ichihiko Toyoda, Kenji Kamogawa | 1997-05-27 |
| 5550068 | Process of fabricating a circuit element for transmitting microwave signals | Makoto Hirano, Kazuyoshi Asai, Yuhki Imai, Masami Tokumitsu, Ichihiko Toyoda | 1996-08-27 |
| 5546056 | Injection-locked oscillator having non-reciprocal four port network | — | 1996-08-13 |
| 5281769 | Dewall plating technique | Makoto Hirano, Kazuyoshi Asai, Yuhki Imai, Masami Tokumitsu, Ichihiko Toyoda | 1994-01-25 |