Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12395143 | Low pass filter, multilayer-type low pass filter, and method of adjusting filter characteristic | — | 2025-08-19 |
| 10270419 | Diplexer | — | 2019-04-23 |
| 9461611 | Low pass filter having attenuation pole and wave splitter | — | 2016-10-04 |
| 9444424 | Polar-type low pass filter and demultiplexer equipped therewith | — | 2016-09-13 |
| 9419579 | Band pass filter circuit and multilayer band pass filter | — | 2016-08-16 |
| 9178482 | Filter element | — | 2015-11-03 |
| 9030993 | Communication device, connection method and storage medium | — | 2015-05-12 |
| 8884721 | Laminated LC filter | — | 2014-11-11 |
| 8410915 | Portable terminal device and method of controlling the same | — | 2013-04-02 |
| 7268648 | Dual mode band-pass filter | Hisatake Okamura, Seiji Kanba | 2007-09-11 |
| 7239221 | Dual mode band-pass filter | Hisatake Okamura, Seiji Kanba | 2007-07-03 |
| 7119639 | Dual mode band-pass filter | Hisatake Okamura, Seiji Kanba | 2006-10-10 |
| 7113588 | Input-output balanced filter | Tetsuo Taniguchi | 2006-09-26 |
| 7098760 | Dual mode band-pass filter | Hisatake Okamura, Seiji Kanba | 2006-08-29 |
| 7079644 | Input-output balanced filter | Tetsuo Taniguchi | 2006-07-18 |
| 6977564 | Bandpass filter | Seiji Kanba, Hisatake Okamura | 2005-12-20 |
| 6958667 | Electronic chip component | Hisatake Okamura | 2005-10-25 |
| 6812813 | Method for adjusting frequency of attenuation pole of dual-mode band pass filter | Seiji Kanba, Hisatake Okamura | 2004-11-02 |
| 6771148 | Dual mode band-pass filter | Hisatake Okamura, Seiji Kanba | 2004-08-03 |
| 6727783 | Method of producing band-pass filter and band-pass filter | Seiji Kanba, Hisatake Okamura | 2004-04-27 |
| 6720848 | Dual mode band-pass filter having coupled modes | Hisatake Okamura, Seiji Kanba | 2004-04-13 |
| 6630875 | Dual-mode band-pass filter | Hisatake Okamura, Seiji Kamba | 2003-10-07 |
| 6608537 | Band-pass filter | Seiji Kanba, Hisatake Okamura, Harufumi Mandai | 2003-08-19 |
| 6580342 | Method of producing band-pass filter and band-pass filter | Seiji Kanba, Hisatake Okamura | 2003-06-17 |
| 6563403 | Dual mode band-pass filter | Seiji Kanba, Hisatake Okamura, Osamu Chikagawa, Naoya Mori, Yasutaka Sugimoto | 2003-05-13 |