Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11894593 | Filter device, and antenna module and communication device including the same | — | 2024-02-06 |
| 11362418 | Antenna module | Kengo Onaka | 2022-06-14 |
| 11063340 | Antenna module and communication device | — | 2021-07-13 |
| 10424841 | Antenna matching circuit, antenna circuit, front-end circuit, and communication apparatus | Kengo Onaka | 2019-09-24 |
| 10333572 | Antenna tuner control circuit, front-end circuit and communication device | Kengo Onaka, Hidenori Obiya | 2019-06-25 |
| 10284165 | Variable phase shifter, variable phase shift circuit, RF front-end circuit, and communication apparatus | Kengo Onaka, Yoshiki Yamada | 2019-05-07 |
| 10237785 | Frequency channel setting method and base station apparatus | Kengo Onaka | 2019-03-19 |
| 10122086 | Antenna device and communication apparatus | Kengo Onaka | 2018-11-06 |
| 10056936 | Front end circuit and communication apparatus | Kengo Onaka, Yuki Nakaike, Reiji Nakajima | 2018-08-21 |
| 8988170 | Elastic wave filter device and communication apparatus equipped with the same | Sunao YAMAZAKI | 2015-03-24 |
| 7479848 | Acoustic wave filter device | — | 2009-01-20 |
| RE40465 | Dielectric filter, dielectric duplexer, and communication apparatus | Motoharu Hiroshima, Shohachi Nishijima, Hideyuki Kato, Haruo Matsumoto | 2008-08-26 |
| 7283016 | Balanced acoustic wave filter and acoustic wave filter | Kazumasa Haruta | 2007-10-16 |
| 6833773 | Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same | Hideki Tsukamoto, Takahiro Okada, Jinsei Ishihara, Hideyuki Kato | 2004-12-21 |
| 6822538 | Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same | Hideki Tsukamoto, Takahiro Okada, Jinsei Ishihara, Hideyuki Kato | 2004-11-23 |
| 6741149 | Dielectric filter, dielectric duplexer, and communication apparatus | Jinsei Ishihara, Hideyuki Kato | 2004-05-25 |
| 6734765 | Dielectric filter, dielectric duplexer, and communications equipment | — | 2004-05-11 |
| 6642817 | Dielectric filter, dielectric duplexer, and communication device | Hirofumi Miyamoto, Jinsei Ishihara, Hideyuki Kato | 2003-11-04 |
| 6580339 | Dielectric duplexer and communication apparatus | — | 2003-06-17 |
| 6580338 | Dielectric filter, dielectric duplexer, communication apparatus, and method of designing dielectric resonator apparatus | Hideki Tsukamoto, Jinsei Ishihara, Hideyuki Kato | 2003-06-17 |
| 6549095 | Dielectric filter, dielectric duplexer, and communication apparatus | Hideki Tsukamoto, Jinsei Ishihara, Hideyuki Kato | 2003-04-15 |
| 6549093 | Dielectric filter, duplexer, and communication apparatus incorporating the same | Hideki Tsukamoto, Jinsei Ishihara, Hideyuki Kato | 2003-04-15 |
| 6545566 | Dielectric filter, dielectric duplexer, and communication device | Hideki Tsukamoto, Jinsei Ishihara, Hideyuki Kato | 2003-04-08 |
| 6535082 | Dielectric filter, dielectric duplexer, and communication device using the same | Jinsei Ishihara, Hideyuki Kato | 2003-03-18 |
| 6525625 | Dielectric duplexer and communication apparatus | Hideki Tsukamoto, Jinsei Ishihara, Hideyuki Kato | 2003-02-25 |