Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9356644 | Wireless circuit and frequency pair determination method | Hiroshi Okazaki, Shoichi Narahashi, Yuta Takagi, Takayuki Furuta | 2016-05-31 |
| 9337990 | Front-end circuit and impedance adjustment method | Shoichi Narahashi, Hiroshi Okazaki, Yuta Takagi, Takayuki Furuta | 2016-05-10 |
| 8773223 | Variable resonator and variable filter | Hiroshi Okazaki, Shoichi Narahashi | 2014-07-08 |
| 8760244 | Multirole circuit element capable of operating as variable resonator or transmission line and variable filter incorporating the same | Hiroshi Okazaki, Shoichi Narahashi | 2014-06-24 |
| 8648666 | Multimode frontend circuit | Hiroshi Okazaki, Shoichi Narahashi | 2014-02-11 |
| 8581677 | Variable resonator, variable bandwidth filter, and electric circuit device | Hiroshi Okazaki, Shoichi Narahashi | 2013-11-12 |
| 8564384 | Variable resonator, tunable bandwidth filter, and electric circuit device | Hiroshi Okazaki, Shoichi Narahashi | 2013-10-22 |
| 8330562 | Variable resonator, tunable filter, and electric circuit device | Hiroshi Okazaki, Shoichi Narahashi | 2012-12-11 |
| 8324988 | Variable resonator, tunable bandwidth filter, and electric circuit device | Hiroshi Okazaki, Shoichi Narahashi | 2012-12-04 |
| 8294537 | Variable resonator, variable bandwidth filter, and electric circuit device | Hiroshi Okazaki, Shoichi Narahashi | 2012-10-23 |
| 8138852 | Duplexer and transceiver | Hiroshi Okazaki, Shoichi Narahashi | 2012-03-20 |
| 8125302 | Signal selecting device | Kei Satoh, Hiroshi Okazaki, Shoichi Narahashi | 2012-02-28 |
| 8106727 | Variable resonator, tunable filter, and electric circuit device | Hiroshi Okazaki, Shoichi Narahashi | 2012-01-31 |
| 7825754 | Variable resonator | Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi | 2010-11-02 |
| 7774034 | Signal switching device | Daisuke Koizumi, Kei Satoh, Shoichi Narahashi, Tetsuo Hirota | 2010-08-10 |
| 7583168 | Resonator | Hiroshi Okazaki, Shoichi Narahashi | 2009-09-01 |
| 7573356 | Tunable filter | Hiroshi Okazaki, Shoichi Narahashi | 2009-08-11 |
| 7307045 | Signal switching device | Daisuke Koizumi, Kei Satoh, Shoichi Narahashi, Tetsuo Hirota | 2007-12-11 |
| 7292124 | Variable resonator and variable phase shifter | Daisuke Koizumi, Hiroshi Okazaki, Shoichi Narahashi, Yasushi Yamao | 2007-11-06 |
| 6963758 | High-sensitivity wireless receiving device and high-frequency unit used therefor | Shoichi Narahashi, Kei Satoh, Toshio Nojima | 2005-11-08 |