P

Inventor

TSUNODA KIKUO

JP33 patents
⚠️ This page may combine multiple inventors who share the name “TSUNODA KIKUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MURATA MANUFACTURING CO

24 patents
US6020800AFeb 1, 2000

Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof

MURATA MANUFACTURING CO127 citations98
US4821006AApr 11, 1989

Dielectric resonator apparatus

MURATA MANUFACTURING CO192 citations98
US6281764B1Aug 28, 2001

Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof

MURATA MANUFACTURING CO30 citations96
US6160463ADec 12, 2000

Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof

MURATA MANUFACTURING CO62 citations96
US4740765AApr 26, 1988

Dielectric filter

MURATA MANUFACTURING CO105 citations94
US6359529B1Mar 19, 2002

Filtering device comprising filters, each having a resonance line, a coupling element coupled to said resonance line, and a switch for short-circuiting said resonance line

MURATA MANUFACTURING CO21 citations93
US4733208AMar 22, 1988

Dielectric filter having impedance changing means coupling adjacent resonators

MURATA MANUFACTURING CO55 citations93
US6781476B2Aug 24, 2004

Filter having directional coupler and communication device

MURATA MANUFACTURING CO21 citations92
US6522220B2Feb 18, 2003

Frequency variable filter, antenna duplexer, and communication apparatus incorporating the same

MURATA MANUFACTURING CO46 citations92
US6356170B1Mar 12, 2002

Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof

MURATA MANUFACTURING CO26 citations92
US6346867B2Feb 12, 2002

Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof

MURATA MANUFACTURING CO20 citations92
US6288620B1Sep 11, 2001

Antenna-duplexer and communication apparatus

MURATA MANUFACTURING CO22 citations92
US6255921B1Jul 3, 2001

Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof

MURATA MANUFACTURING CO24 citations92
US6411176B1Jun 25, 2002

Voltage-controlled duplexer and communication apparatus

MURATA MANUFACTURING CO13 citations74
US5929725AJul 27, 1999

Dielectric filter using the TEM mode

MURATA MANUFACTURING CO16 citations74
US4730173AMar 8, 1988

Asymmetrical trap comprising coaxial resonators, reactance elements, and transmission line elements

MURATA MANUFACTURING CO12 citations74
US4942377AJul 17, 1990

Rod type dielectric resonating device with coupling plates

MURATA MANUFACTURING CO17 citations73
US4839773AJun 13, 1989

Dielectric filter

MURATA MANUFACTURING CO13 citations73
US6861929B2Mar 1, 2005

Low-pass filter

MURATA MANUFACTURING CO4 citations63
US6476687B1Nov 5, 2002

Dielectric filter providing TEM- and TE-mode resonators and communicaton device using the same

MURATA MANUFACTURING CO3 citations63
US6885261B2Apr 26, 2005

Dielectric filter, antenna sharing device, and communication device having a voltage controlled reactance element for tuning the center frequency

MURATA MANUFACTURING CO3 citations62
US6590475B2Jul 8, 2003

Filter, antenna duplexer, and communication apparatus incorporating the same

MURATA MANUFACTURING CO2 citations62
US6448870B1Sep 10, 2002

Dielectric filter, dielectric duplexer, and communication apparatus using the same

MURATA MANUFACTURING CO2 citations62
US5952897ASep 14, 1999

Dielectric filter unit comprising internal conductors and a slit with an electrode for input/output coupling structure

MURATA MANUFACTURING CO4 citations62

RYOBI LTD

9 patents