Issued Patents 2003
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6556109 | Dual mode band pass filter | Seiji Kanba, Hisatake Okamura, Harufumi Mandai | 2003-04-29 |
| 6556108 | Method of producing band-pass filter and band-pass filter | Seiji Kanba, Hisatake Okamura | 2003-04-29 |
| 6545568 | Dual-mode band-pass filter | Hisatake Okamura, Seiji Kamba | 2003-04-08 |
| 6507251 | Dual-mode band-pass filter | Hisatake Okamura, Seiji Kamba | 2003-01-14 |