Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8217715 | Active polyphase filter producing two difference outputs having phase difference of π/2 radians | Yasuyuki Miyake | 2012-07-10 |
| 7982663 | Digital signal processor | Yasuyuki Miyake | 2011-07-19 |
| 7688164 | High frequency circuit board converting a transmission mode of high frequency signals | Tetsuya Katayama | 2010-03-30 |
| 7536153 | Activation signal output circuit having multiple amplifier circuits | Hiroaki Hayashi, Yoshiyuki Kago, Yukiomi Tanaka, Kazuhiko Endo | 2009-05-19 |
| 7301419 | Filtering type frequency switching circuit | Kazuo Mizuno, Ryu Kimura, Hiroaki Hayashi | 2007-11-27 |
| 7215162 | Start signal outputting circuit | Kazuo Mizuno, Ryu Kimura, Hiroaki Hayashi | 2007-05-08 |
| 7209842 | Activation signal output circuit and determination circuit | Kazuo Mizuno, Ryu Kimura, Yoshiyuki Kago, Yukiomi Tanaka, Kazuhiko Endo +1 more | 2007-04-24 |
| 7035348 | Receiver apparatus | Noriyoshi Suzuki, Tomohisa Harada, Tsutayuki Shibata, Hiroaki Hayashi, Nobuo Itoh | 2006-04-25 |
| 6388540 | Distributed constant circuit in an amplifier | Masao Nishida | 2002-05-14 |
| 6218890 | Switching circuit device and semiconductor device | Tsutomu Yamaguchi, Seiichi Banba, Tetsuro Sawai | 2001-04-17 |
| 6140892 | Distributed constant circuit | Masao Nishida | 2000-10-31 |
| 6052029 | Stabilizing circuit and amplifier | Masao Nishida | 2000-04-18 |
| 5955926 | Power amplifier and chip carrier | Shigeyuki Okamoto | 1999-09-21 |
| 5945867 | Switch circuit device | Keiichi Honda | 1999-08-31 |
| 5590412 | Communication apparatus using common amplifier for transmission and reception | Tetsuro Sawai, Toshikazu Hirai, Toshikazu Imaoka, Yasoo Harada, Keiichi Honda +1 more | 1996-12-31 |
| 5585676 | IC chip for different type IC packages | Tetsuro Sawai, Toshikazu Imaoka, Toshikazu Hirai, Yasoo Harada | 1996-12-17 |
| 5559457 | Double-balanced mixer circuit | Tetsuro Sawai, Toshikazu Imaoka, Toshikazu Hirai, Yasoo Harada | 1996-09-24 |
| 5477184 | Fet switching circuit for switching between a high power transmitting signal and a lower power receiving signal | Yasoo Harada | 1995-12-19 |