Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7876170 | Frequency modulator, frequency modulating method, and wireless circuit | Hisashi Adachi | 2011-01-25 |
| 7224238 | Frequency modulator, frequency modulating method, and wireless circuit | Hisashi Adachi | 2007-05-29 |
| 7142614 | Signal generating circuit for generating a reference phase signal and a quadrature signal | Koji Takinami, Hisashi Adachi | 2006-11-28 |
| 7127215 | Transmitting/receiving switch | Hiroyuki Nakamura, Toshio Ishizaki, Jyunichi Yoshizumi | 2006-10-24 |
| 7081795 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Toru Matsuura, Kaoru Ishida, Seiji Fujiwara | 2006-07-25 |
| 7075383 | Frequency modulator, frequency modulating method, and wireless circuit | Hisashi Adachi | 2006-07-11 |
| 7038557 | Antenna duplexer and mobile communication device using the same | Hiroyuki Nakamura, Toshio Ishizaki, Hisashi Adachi, Hiroaki Kosugi, Hiroyuki Itokawa +1 more | 2006-05-02 |
| 6989713 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Toru Matsuura, Kaoru Ishida, Seiji Fujiwara | 2006-01-24 |
| 6977548 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Toru Matsuura, Kaoru Ishida, Seiji Fujiwara | 2005-12-20 |
| 6960957 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Toru Matsuura, Kaoru Ishida, Seiji Fujiwara | 2005-11-01 |
| 6960958 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Toru Matsuura, Kaoru Ishida, Seiji Fujiwara | 2005-11-01 |
| 6933780 | Predistortion circuit and power amplifier | Seiji Fujiwara, Toru Matsuura, Kaoru Ishida | 2005-08-23 |
| 6891462 | High-Q inductor for high frequency | Toshiakira Andoh, Toshifumi Nakatani, Kouji Takinami, Yukio Hiraoka | 2005-05-10 |
| 6664882 | High-Q inductor for high frequency | Toshiakira Andoh, Toshifumi Nakatani, Kouji Takinami, Yukio Hiraoka | 2003-12-16 |
| 6639471 | Power amplifier circuit, control method for power amplifier circuit, and portable terminal apparatus for mobile communication | Toru Matsuura, Hisashi Adachi, Hiroyuki Handa, Toshio Obara | 2003-10-28 |
| 6590449 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Toru Matsuura, Kaoru Ishida, Seiji Fujiwara | 2003-07-08 |
| 6459915 | External adapter for a portable cellular phone | Hiroyuki Nakamura, Takaaki Maegawa, Hiroaki Kosugi, Kenichi Takahashi | 2002-10-01 |
| 6456172 | Multilayered ceramic RF device | Toshio Ishizaki, Toru Yamada, Hiroshi Kagata | 2002-09-24 |
| 6269253 | Multi-mode wireless communication system | Takaaki Maegawa, Hiroyuki Nakamura, Hiroaki Kosugi, Junichi Takada | 2001-07-31 |
| 6169461 | High-frequency oscillating circuit | Toshiaki Andoh, Takeshi Miura, Hiroaki Kosugi, Kaoru Ishida | 2001-01-02 |
| 6166613 | Voltage-controlled resonator, method of fabricating the same, method of tuning the same, and mobile communication apparatus | Yoshihiro Nakagawa, Koichi Ogawa, Toshio Ishizaki, Toshiaki Nakamura | 2000-12-26 |
| 6072376 | Filter with low-noise amplifier | Toshimitsu Matsuyoshi, Minoru Tachibana, Junichi Yoshizumi, Toshio Ishizaki, Tomoki Uwano +1 more | 2000-06-06 |
| 5852384 | Dual band oscillator circuit using strip line resonators | Hisanaga Miyoshi, Kouji Hashimoto, Nobuo Fuse, Hiroaki Kosugi, Kaoru Ishida | 1998-12-22 |
| 5559474 | Frequency synthesizer with controllable loop filter | Takayuki Matsumoto, Hisashi Adachi, Hiroaki Kosugi | 1996-09-24 |
| 5475350 | Frequency tunable resonator including a varactor | Toru Yamada, Toshio Ishizaki, Yoshihiro Nakagawa, Koji Hashimoto, Toshiaki Nakamura | 1995-12-12 |