Issued Patents All Time
Showing 26–50 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7911281 | PLL circuit and radio communication apparatus | Hiroaki Hoshino, Osamu Watanabe, Tetsuro Itakura | 2011-03-22 |
| 7904121 | Generating device of trigger signal | Toshiyuki Umeda | 2011-03-08 |
| 7876162 | Amplifier and radio | Kohei Onizuka, Masahiro Hosoya, Hiroaki Ishihara, Osamu Watanabe | 2011-01-25 |
| 7843709 | Rectifier circuit and radio communication device using the same | Toshiyuki Umeda | 2010-11-30 |
| 7746120 | Voltage to current converter | Toshiyuki Umeda | 2010-06-29 |
| 7663420 | MOS resistance controlling device and MOS attenuator | Yuta Araki, Toru Hashimoto | 2010-02-16 |
| 7590400 | Radio apparatus | Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano, Tadahiko Maeda | 2009-09-15 |
| 7501892 | Amplifier circuit and communication device | Yuta Araki | 2009-03-10 |
| 7184738 | Radio apparatus | Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano, Tadahiko Maeda | 2007-02-27 |
| 7123061 | Frequency converter having low supply voltage | Toshiyuki Umeda, Tetsuro Itakura | 2006-10-17 |
| 7107035 | Frequency converter and radio communication apparatus | — | 2006-09-12 |
| 7095806 | Receiver | Hiroshi Tsurumi, Hiroshi Yoshida, Hiroshi Tanimoto | 2006-08-22 |
| 7088980 | Frequency converter with nonlinear distortion cancellation | — | 2006-08-08 |
| 7075345 | Frequency converter having low supply voltage | Toshiyuki Umeda, Tetsuro Itakura | 2006-07-11 |
| 7065334 | Variable gain amplifier device | Takafumi Yamaji | 2006-06-20 |
| 7031684 | Variable gain amplifier device | Takafumi Yamaji | 2006-04-18 |
| 6990326 | Image suppression filter circuit | — | 2006-01-24 |
| 6954089 | Frequency converter having low supply voltage | Toshiyuki Umeda, Tetsuro Itakura | 2005-10-11 |
| 6946895 | Mixer device including an amplifier circuit | Toshiyuki Umeda | 2005-09-20 |
| 6940339 | Mobility proportion current generator, and bias generator and amplifier using the same | — | 2005-09-06 |
| 6885239 | Mobility proportion current generator, and bias generator and amplifier using the same | — | 2005-04-26 |
| 6844782 | Temperature compensation circuit and a variable gain amplification circuit | — | 2005-01-18 |
| 6816712 | Radio apparatus | Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano, Tadahiko Maeda | 2004-11-09 |
| 6768379 | Amplifier circuit | Toshiyuki Umeda | 2004-07-27 |
| 6714604 | Receiver | Hiroshi Tsurumi, Hiroshi Yoshida, Hiroshi Tanimoto | 2004-03-30 |