Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8284876 | Automatic gain control circuit | — | 2012-10-09 |
| 7991371 | Automatic gain control apparatus for wireless communication apparatus | — | 2011-08-02 |
| 7868695 | Differential amplifier | Yoshiaki Takahashi | 2011-01-11 |
| 7852967 | Automatic power output control circuit | — | 2010-12-14 |
| 7848721 | Antenna damping circuit and high frequency receiver employing same | — | 2010-12-07 |
| 7843258 | Filter circuit | — | 2010-11-30 |
| 7812685 | Automatic regulator of filter | — | 2010-10-12 |
| 7795979 | Automatic gain control circuit and low noise amplifying circuit | — | 2010-09-14 |
| 7639085 | Automatic gain control circuit | — | 2009-12-29 |
| 7602248 | Power amplifier and its idling current setting circuit | — | 2009-10-13 |
| 5940428 | Spread spectrum signal receiving apparatus | Hiroyasu Yoshida, Yoshiaki Takahashi | 1999-08-17 |
| 5903593 | Spread spectrum signal receiver | Hiroyasu Yoshida, Yoshiaki Takahashi | 1999-05-11 |
| 5087890 | Amplifier circuit | Masanori Fujisawa | 1992-02-11 |
| 5068544 | FSK data waveform shaping circuit | Yutaka Sekiguchi | 1991-11-26 |
| 5065112 | Amplification circuit with improved linearity | Yasunori Sato | 1991-11-12 |
| 5027428 | Power saving arrangement and power saving method | Yutaka Sekiguchi | 1991-06-25 |
| 5014017 | Power-saving low-frequency power amplifier | Yutaka Sekiguchi | 1991-05-07 |
| 4990872 | Variable reactance circuit producing negative to positive varying reactance | Mikio Yamagishi | 1991-02-05 |
| 4972482 | Fm stereo demodulator | Mikio Yamagishi | 1990-11-20 |
| 4944010 | Stereo demodulator and a demodulating method thereof | Mikio Yamagishi | 1990-07-24 |
| 4864637 | FMX stereophonic broadcast receiver | Tsutomu Ishikawa, Noboru Usui, Kanji Tanaka, Ryuichi Ogawa, Masashi Arai | 1989-09-05 |
| 4852167 | FMX stereophonic receiver | Noboru Usui, Kanji Tanaka, Ryuichi Ogawa, Tsutomu Ishikawa, Masashi Arai | 1989-07-25 |
| 4809328 | FM/FMX stereophonic receiver | Noboru Usui, Kanji Tanaka, Ryuichi Ogawa, Tsutomu Ishikawa, Masashi Arai | 1989-02-28 |
| 4587500 | Variable reactance circuit producing negative to positive varying reactance | Kanji Tanaka | 1986-05-06 |