Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6972645 | Resonator, filter, communication apparatus | Seiji Hidaka | 2005-12-06 |
| 6943644 | Resonator, filter, duplexer, and communication apparatus | Seiji Hidaka | 2005-09-13 |
| 6940372 | Transmission line, resonator, filter, duplexer, and communication apparatus | Seiji Hidaka, Michiaki Ota | 2005-09-06 |
| 6937118 | High-frequency circuit device, resonator, filter, duplexer, and high-frequency circuit apparatus | Seiji Hidaka | 2005-08-30 |
| 6894587 | Coaxial resonator, filter, duplexer, and communication device | Seiji Hidaka, Shingo Okajima | 2005-05-17 |
| 6888426 | Resonator, filter, duplexer, and high-frequency circuit apparatus | Seiji Hidaka, Yasuo Fujii | 2005-05-03 |