Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10715109 | Radio frequency front-end circuit and communication device | Koji Nosaka | 2020-07-14 |
| 10382006 | Variable frequency filter, radio frequency front-end circuit, and communication terminal | Hideki Tsukamoto, Masakazu Tani | 2019-08-13 |
| 7471173 | Resonator, filter, nonreciprocal circuit device, and communication apparatus | Seiji Hidaka, Hiromu Tokudera | 2008-12-30 |
| 6870449 | High-frequency transmission line | Nobumasa Kitamori, Atsushi Saitoh | 2005-03-22 |
| 6861920 | COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FILTER, DUPLEXER COMMUNICATIONS DEVICE, CIRCUIT MODULE, COMPLEX CIRCUIT BOARD MANUFACTURING METHOD, AND NONRECIPROCAL CIRCUIT DEVICE MANUFACTURING METHOD | Yohei Ishikawa, Hiromu Tokudera | 2005-03-01 |
| 6657514 | Dielectric transmission line attenuator, dielectric transmission line terminator, and wireless communication device | Hiromu Tokudera, Atsushi Saito | 2003-12-02 |
| 6646516 | COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FILTER, DUPLEXER, COMMUNICATIONS DEVICE, CIRCUIT MODULE, COMPLEX CIRCUIT BOARD MANUFACTURING METHOD, AND NONRECIPROCAL CIRCUIT DEVICE MANUFACTURING METHOD | Yohei Ishikawa, Hiromu Tokudera | 2003-11-11 |
| 6496080 | Dielectric waveguide nonreciprocal circuit device with a non-interfering magnetic member support | Yutaka Ishiura, Hiromu Tokudera | 2002-12-17 |
| 6472960 | Complex circuit board with an electrode and air gap between dielectric and magnetic substrates | Yohei Ishikawa, Hiromu Tokudera | 2002-10-29 |
| 6441698 | Dielectric-waveguide attenuator, dielectric-waveguide terminator, and wireless apparatus incorporating same | Hiromu Tokudera | 2002-08-27 |