Issued Patents All Time
Showing 1–25 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9319494 | Wireless module and wireless communication apparatus | — | 2016-04-19 |
| 9136580 | Quadrature hybrid coupler, amplifier, and wireless communication device | — | 2015-09-15 |
| 8576942 | High efficiency transmitter | Toru Matsuura, Wayne S. Lee, Tomoya Urushihara | 2013-11-05 |
| 8175199 | Wireless receiver | — | 2012-05-08 |
| 8050639 | Multi-antenna communication apparatus | Hiroshi Iwai | 2011-11-01 |
| 8045650 | Radio receiving apparatus | — | 2011-10-25 |
| 7957703 | Wireless circuit device | Hiroyuki Nakamura, Kaoru Ishida | 2011-06-07 |
| 7746152 | Switch circuit device, and wireless circuit device and sampling circuit device employing the same | Mikihiro Shimada | 2010-06-29 |
| 7725082 | Radio communication apparatus, radio communication method, antenna apparatus and first duplexer | Atsushi Yamamoto, Hisashi Adachi | 2010-05-25 |
| 7710181 | Variable attenuator and wireless communication device | Takahito Miyazaki | 2010-05-04 |
| 7642848 | Variable gain amplifying apparatus and wireless communication apparatus | Jyunji Itoh, Hideo Nakano | 2010-01-05 |
| 7383034 | Frequency conversion circuit, modulation circuit, polar modulation transmitting circuit, quadrature modulation transmitting circuit, communication instrument, and frequency conversion method | Takahiro Shima | 2008-06-03 |
| 7342442 | Variable gain amplifying apparatus and wireless communication apparatus | Jyunji Itoh, Hideo Nakano | 2008-03-11 |
| 7324791 | Low-noise differential bias circuit and differential signal processing apparatus | Shinichi Osako, Jyunji Itoh | 2008-01-29 |
| 7298205 | Amplifier and frequency converter | Jyunji Itoh, Hideo Nakano | 2007-11-20 |
| 7245890 | High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication device | Masahiro Kumagawa, Hisashi Adachi | 2007-07-17 |
| 7245883 | Radio communication apparatus, radio communication method, antenna apparatus and first duplexer | Atsushi Yamamoto, Hisashi Adachi | 2007-07-17 |
| 7224240 | Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus | Hiroyuki Nakamura, Toshio Ishizaki | 2007-05-29 |
| 7176757 | Multistage amplifying devices, and reception device and transmission device using the same | — | 2007-02-13 |
| 7176768 | Balanced high-frequency device and balanced high-frequency circuit using the same | Hiroyuki Nakamura, Toshio Ishizaki | 2007-02-13 |
| 7170539 | Thermal head, method for manufacturing the same, and method for adjusting dot aspect ratio of thermal head | Shuuichi Usami, Hirotoshi Terao | 2007-01-30 |
| 7123073 | Amplifier and frequency converter | Jyunji Itoh, Hideo Nakano | 2006-10-17 |
| 7109793 | High frequency differential circuit, differential amplifier, differential mixer, differential oscillator, and radio circuit using same | Hisashi Adachi | 2006-09-19 |
| 7110486 | Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating method | Hisashi Adachi, Hiroaki Kosugi, Masakatsu Maeda, Shunsuke Hirano | 2006-09-19 |
| 7079829 | Semiconductor differential circuit, oscillation apparatus, switching apparatus, amplifying apparatus, mixer apparatus and circuit apparatus using same, and semiconductor differential circuit placement method | Hisashi Adachi, Yukio Hiraoka | 2006-07-18 |