Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642816 | Strip-line filter, duplexer, filter device, communication device, and method of adjusting characteristic of strip-line filter | Shigeji Arakawa | 2003-11-04 |
| 6603373 | Adjusting method for electrical characteristics of microstrip line filter, duplexer, communication device, and microstrip line type resonator | — | 2003-08-05 |
| 6577211 | Transmission line, filter, duplexer and communication device | — | 2003-06-10 |
| 6566977 | Filter, duplexer, and communication device | — | 2003-05-20 |