Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7760691 | High-frequency circuit apparatus and communication apparatus using the same | Takao Totsuka, Takashi Shiba | 2010-07-20 |
| 7579929 | Transmission circuit, antenna duplexer, and radio-frequency switch circuit | Masashi Ohki, Hideaki Sunayama | 2009-08-25 |
| 7570622 | High-frequency circuit apparatus and communication apparatus using the same | Takao Totsuka, Takashi Shiba | 2009-08-04 |
| 7522015 | Switch circuit, front end module and radio terminal including switch circuit | Yuuichi Oikawa | 2009-04-21 |
| 7499678 | Antenna sharing device and wireless communication terminal using the same | Nobuhiko Shibagaki, Mitsutaka Hikita, Kazuyuki Sakiyama | 2009-03-03 |
| 6625202 | Mobile station for spread spectrum communication | Shigeyuki Sudo, Kazutoshi Higuchi | 2003-09-23 |
| 6525624 | Band-switchable surface acoustic wave antenna duplexer and mobile radio terminal | Mitsutaka Hikita, Nobuhiko Shibagaki, Kazuyuki Sakiyama, Masato Kijima | 2003-02-25 |
| 5331247 | Surface acoustic wave device and communication device using the same | Hiroaki Ikeda, Takashi Shiba | 1994-07-19 |