Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12368224 | Directional coupler | Kenta Seki, Yasushi Shigeno, Daisuke Tokuda, Katsuya Shimizu, Kazuhito OSAWA | 2025-07-22 |
| 12068521 | Directional coupler | Kenta Seki, Katsuya Shimizu | 2024-08-20 |
| 12051843 | Directional coupler | Daisuke Tokuda, Katsuya Shimizu, Kenta Seki | 2024-07-30 |
| 11984638 | Directional coupler | Kenta Seki, Kazuhito OSAWA | 2024-05-14 |
| 11962061 | Directional coupler including a main line and a sub-line switchably connected between a coupling terminal and a terminal circuit at different times | Kenta Seki, Kazuhito OSAWA, Katsuya Shimizu | 2024-04-16 |
| 11837770 | Directional coupler | Kenta Seki, Katsuya Shimizu | 2023-12-05 |
| 11699983 | Directional coupler | Daisuke Tokuda, Yasushi Shigeno, Katsuya Shimizu | 2023-07-11 |
| 11509034 | Directional coupler | Kenta Seki, Yasushi Shigeno, Daisuke Tokuda, Katsuya Shimizu, Kazuhito OSAWA | 2022-11-22 |
| 11489243 | Directional coupler | — | 2022-11-01 |
| 11456517 | Directional coupler | Kenta Seki, Yasushi Shigeno, Daisuke Tokuda, Katsuya Shimizu, Kazuhito OSAWA | 2022-09-27 |
| 11362634 | Filter module and high frequency module | Hisanori MURASE, Naru MORITO, Hiromichi KITAJIMA, Yasushi Shigeno, Kenta Seki | 2022-06-14 |
| 11121444 | Directional coupler | Kenta Seki, Katsuya Shimizu | 2021-09-14 |
| 11043978 | Bidirectional coupler | — | 2021-06-22 |
| 10964996 | Bidirectional coupler | Katsuya Shimizu, Yasushi Shigeno, Daisuke Tokuda, Mikiko Fukasawa | 2021-03-30 |
| 10461392 | Bidirectional coupler, monitor circuit, and front end circuit | Yasushi Shigeno | 2019-10-29 |
| 10461393 | Bidirectional coupler, monitor circuit, and front-end circuit | Yasushi Shigeno | 2019-10-29 |
| 9871509 | Power-on reset circuit | — | 2018-01-16 |
| 9337777 | Amplifier | — | 2016-05-10 |
| 9014752 | Front end device | — | 2015-04-21 |
| 8736249 | High frequency power detector circuit and radio communication device | — | 2014-05-27 |
| 8081033 | Variable gain amplifier and high-frequency signal receiving apparatus comprising the same | George Hayashi | 2011-12-20 |
| 7995977 | High frequency power detector circuit and radio communication device | Hiroshi Kimura | 2011-08-09 |
| 7877063 | High-frequency amplifier, and transmission/reception system | Joji Hayashi | 2011-01-25 |