Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8311146 | Radio communication system | Akinori Fujimura, Yasushi Sogabe, Fumio Ishizu, Hiroyuki Nakase, Kazuo Tsubouchi +2 more | 2012-11-13 |
| 7675383 | Switch circuit | Masatake Hangai, Tamotsu Nishino, Shinnosuke Soda, Kenichi Miyaguchi, Kenji Kawakami +3 more | 2010-03-09 |
| 7541894 | Phase-shifting circuit and multibit phase shifter | Kenichi Miyaguchi, Morishige Hieda, Tamotsu Nishino, Masatake Hangai, Moriyasu Miyazaki +2 more | 2009-06-02 |
| 7495529 | Phase shift circuit, high frequency switch, and phase shifter | Kenichi Miyaguchi, Morishige Hieda, Tamotsu Nishino, Masatake Hangai, Moriyasu Miyazaki +3 more | 2009-02-24 |
| 7167064 | Phase shift circuit and phase shifter | Kenichi Miyaguchi, Morishige Hieda, Michiaki Kasahara, Mikio Hatamoto | 2007-01-23 |
| 7123116 | Phase shifter and multibit phase shifter | Morishige Hieda, Kenichi Miyaguchi, Michiaki Kasahara, Hiroshi Ikematsu, Norio Takeuchi +2 more | 2006-10-17 |
| 6906411 | Multilayer substrate module and portable wireless terminal | Takatoshi Katsura, Kenji Itoh, Hiroaki Nagano, Youji Isota, Mitsuhiro Shimozawa +3 more | 2005-06-14 |
| 6861906 | High-frequency semiconductor device | Kazutomi Mori, Shintaro Shinjo, Kousei Maemura, Teruyuki Shimura, Kazuhiko Nakahara | 2005-03-01 |
| 6784743 | High frequency amplifier and frequency mixer | Eiji Taniguchi, Noriharu Suematsu, Chiemi Sawaumi, Kenichi Maeda, Takayuki Ikushima +1 more | 2004-08-31 |
| 6750720 | High-frequency amplifier | Kazutomi Mori, Shintarou Shinjo, Hiroyuki Joba, Yoshinori Takahashi, Yukio Ikeda | 2004-06-15 |
| 6674341 | Phase shifter and multibit phase shifter | Morishige Hieda, Kenichi Miyaguchi, Kazutomi Mori, Michiaki Kasahara, Hiroshi Ikematsu +3 more | 2004-01-06 |
| 6462622 | High-frequency amplifier and high-frequency multistage amplifier | Kazutomi Mori, Kazuhisa Yamauchi, Koji Yamanaka, Kazuhiko Nakahara | 2002-10-08 |
| 6329864 | Semiconductor circuitry | Noriharu Suematsu, Masayoshi Ono | 2001-12-11 |
| 6133791 | Feedforward amplifier with improved characteristics without using pilot signal | Kenichi Horiguchi, Masatoshi Nakayama, Yukio Ikeda, Haruyasu Senda | 2000-10-17 |
| 5889434 | Microwave power amplifier | Teruyuki Shimura, Takeshi Miura | 1999-03-30 |
| 5270668 | Semiconductor amplifier | Yukio Ikeda, Gen Toyoshima, Kiyoharu Seino | 1993-12-14 |
| 5160984 | Amplifying feedback FET semiconductor element | Mitsuru Mochizuki, Shuji Urasaki | 1992-11-03 |
| 5151664 | Low-distortion radio-frequency amplifying apparatus | Noriharu Suematsu, Shuji Urasaki | 1992-09-29 |
| 5142240 | Amplifier circuit with correction of amplitude and phase distortions | Yoji Isota, Gen Toyoshima, Noriharu Suematsu, Yukio Ikeda, Shuji Urasaki | 1992-08-25 |
| 5101172 | Linear amplifier | Yukio Ikeda, Gen Toyoshima, Noriharu Suematsu, Yoji Isota, Shuji Urasaki | 1992-03-31 |
| 5093637 | Modulation device with input signal modification for correction of amplifier nonlinearities | Yoji Isota, Gen Toyoshima, Noriharu Suematsu, Yukio Ikeda, Shuji Urasaki | 1992-03-03 |
| 5093629 | Amplifier circuit having second order signal cancellation | Gen Toyoshima, Yukio Ikeda, Noriharu Suematsu, Yoji Isota, Shuji Urasaki | 1992-03-03 |
| 5089790 | Field effect transistor amplifier | Mitsuru Mochizuki, Youji Isota, Shuji Urasaki | 1992-02-18 |
| 5043673 | Compensating circuit for a high frequency amplifier | Noriharu Suematsu, Shuji Urasaki, Katsuhisa Uno, Masahiro Kamiyama | 1991-08-27 |
| 4853649 | Distributed fet amplifier and bias voltage supply circuit therefor | Kiyoharu Seino, Fumio Takeda, Yukio Ikeda | 1989-08-01 |