Kiyoshi Kanagawa

Dielectric filter, duplexer, and communication device

Dielectric resonator formed by polygonal openings in a dielectric substrate, and a filter, duplexer, and communication apparatus using same

Device with memory card insertion/removing mechanism

Dielectric resonator device, dielectric filter, oscillator, sharing device, and electronic apparatus

Dielectric filter, transmitting/receiving duplexer, and communication apparatus having depressed parallel plate mode below a resonant frequency

Dielectric resonator having a resonance region and a cavity adjacent to the resonance region, and a dielectric filter, duplexer and communication device utilizing the dielectric resonator

Dielectric filter, dielectric duplexer, and transceiver having circular and polygonal electrode openings

Dielectric resonator, dielectric filter, duplexer, and communication device

Card-type apparatus

Band-pass filter and communication apparatus