Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624725 | Lattice filter with ripple in passing band eliminated and with passing band widened | — | 2003-09-23 |
| 6175286 | Dielectric resonator and dielectric filter using the same | — | 2001-01-16 |
| 5489882 | Balanced-type dielectric filter and high frequency circuit using balanced-type dielectric filter | — | 1996-02-06 |
| 5124676 | Dielectric filter having variable rectangular cross section inner conductors | — | 1992-06-23 |
| 4799033 | Microwave separator | Sadao Igarashi | 1989-01-17 |
| 4761624 | Microwave band-pass filter | Sadao Igarashi | 1988-08-02 |
| 4757284 | Dielectric filter of interdigital line type | — | 1988-07-12 |
| 4737746 | Dielectric filter | — | 1988-04-12 |
| 4638264 | Voltage controlled oscillator with series connected resonance element and switched capacitance | — | 1987-01-20 |