Inventor
TADA HITOSHI
JP71 patents
⚠️ This page may combine multiple inventors who share the name “TADA HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
34 patentsUS6556101B1Apr 29, 2003
Dielectric resonator, dielectric filter, dielectric duplexer, and communication device
MURATA MANUFACTURING CO108 citations98
US5572175ANov 5, 1996
Coaxial dielectric resonator apparatus having a plurality of side recesses located on a mount substrate
MURATA MANUFACTURING CO45 citations96
US5537082AJul 16, 1996
Dielectric resonator apparatus including means for adjusting the degree of coupling
MURATA MANUFACTURING CO61 citations96
US6054910AApr 25, 2000
Dielectric filter having an inner conductor with two open-circuited inner ends
MURATA MANUFACTURING CO85 citations95
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
US6157274ADec 5, 2000
Band elimination filter and duplexer
MURATA MANUFACTURING CO19 citations93
US5686873ANov 11, 1997
Antenna duplexer having transmit and receive portion formed in a single dielectric block
MURATA MANUFACTURING CO21 citations93
US5986521ANov 16, 1999
Multi-passband filter
MURATA MANUFACTURING CO22 citations92
US5525946AJun 11, 1996
Dielectric resonator apparatus comprising a plurality of one-half wavelength dielectric coaxial resonators having open-circuit gaps at ends thereof
MURATA MANUFACTURING CO38 citations92
US5867076AFeb 2, 1999
Dielectric resonator and dielectric resonant component having stepped portion and non-conductive inner portion
MURATA MANUFACTURING CO18 citations84
US5793267AAug 11, 1998
Dielectric block filter having first and second resonator arrays coupled together
MURATA MANUFACTURING CO19 citations84
US5760666AJun 2, 1998
Dielectric resonant component with resist film on the mount substrate
MURATA MANUFACTURING CO16 citations82
US5642084AJun 24, 1997
Dielectric filter having respective capacitance gaps flushed with the inner surface of corresponding holes
MURATA MANUFACTURING CO16 citations82
US12368221B2Jul 22, 2025
Dielectric filter
MURATA MANUFACTURING CO2 citations75
US6765457B2Jul 20, 2004
Dielectric filter, dielectric duplexer, and communication device having elongated through holes
MURATA MANUFACTURING CO10 citations74
US6507250B1Jan 14, 2003
Dielectric filter, dielectric duplexer, and communication equipment
MURATA MANUFACTURING CO8 citations74
US6353374B1Mar 5, 2002
Dielectric filter with recessed end surface
MURATA MANUFACTURING CO3 citations74
US6177852B1Jan 23, 2001
Dielectric filter, dielectric duplexer, and transceiver
MURATA MANUFACTURING CO12 citations74
US6078230AJun 20, 2000
Characteristic adjusting method for dielectric filter using a grinding tool
MURATA MANUFACTURING CO3 citations74
US6014067AJan 11, 2000
Dielectric resonator filter having a portion of the outer surface closer to the resonators
MURATA MANUFACTURING CO7 citations74
US6008707ADec 28, 1999
Antenna duplexer
MURATA MANUFACTURING CO14 citations74
US5815056ASep 29, 1998
Dielectric resonator having an elongated non-conductive resonator gaps and manufacturing method thereof
MURATA MANUFACTURING CO9 citations74
US5712604AJan 27, 1998
Dielectric filter including at least one band elimination filter
MURATA MANUFACTURING CO15 citations74
US5696473ADec 9, 1997
Dielectric filter having a non-right angle stepped end surface
MURATA MANUFACTURING CO13 citations74
US5652555AJul 29, 1997
Dielectrical filters having resonators at a trap frequency where the even/odd mode impedances are both zero
MURATA MANUFACTURING CO9 citations74
US5629656AMay 13, 1997
Dielectric resonator apparatus comprising connection conductors extending between resonators and external surfaces
MURATA MANUFACTURING CO16 citations74
US5612654AMar 18, 1997
Dielectric filter having stepped resonator holes with offset hole portions
MURATA MANUFACTURING CO13 citations74
US5202653AApr 13, 1993
Band-pass filter including resonance elements coupled by a coupling line and a by-pass coupling line
MURATA MANUFACTURING CO7 citations74
US12051847B2Jul 30, 2024
Dielectric resonator, dielectric filter, and multiplexer
MURATA MANUFACTURING CO6 citations73
US5764117AJun 9, 1998
Method of manufacturing a dielectric resonant apparatus
MURATA MANUFACTURING CO7 citations73
US12027742B2Jul 2, 2024
Distributed constant filter, distributed constant line resonator, and multiplexer
MURATA MANUFACTURING CO2 citations72
US6940364B2Sep 6, 2005
Dielectric filter, dielectric duplexer, and communication apparatus
MURATA MANUFACTURING CO2 citations63
US6466109B1Oct 15, 2002
Dielectric filter having non-conductive adjusting regions
MURATA MANUFACTURING CO1 citations63
US6411177B1Jun 25, 2002
Dielectric filter, dielectric duplexer, and communication apparatus
MURATA MANUFACTURING CO3 citations63
MITSUBISHI ELECTRIC CORP
15 patentsUS5684902ANov 4, 1997
Semiconductor laser module
MITSUBISHI ELECTRIC CORP59 citations96
US6778751B2Aug 17, 2004
Optical modulator and photonic semiconductor device
MITSUBISHI ELECTRIC CORP28 citations93
US6226310B1May 1, 2001
Semiconductor optical device
MITSUBISHI ELECTRIC CORP23 citations93
US5757835AMay 26, 1998
Semiconductor laser device
MITSUBISHI ELECTRIC CORP21 citations93
US5668822ASep 16, 1997
Integrated semiconductor laser device
MITSUBISHI ELECTRIC CORP48 citations93
US5418799AMay 23, 1995
Semiconductor laser element structure
MITSUBISHI ELECTRIC CORP30 citations93
US6455338B1Sep 24, 2002
Method of manufacturing an integrated semiconductor laser-modulator device
MITSUBISHI ELECTRIC CORP39 citations92
US6384955B2May 7, 2002
Light modulator
MITSUBISHI ELECTRIC CORP33 citations92
US5426658AJun 20, 1995
Semiconductor laser including ridge confining buffer layer
MITSUBISHI ELECTRIC CORP27 citations92
US5316967AMay 31, 1994
Method for producing semiconductor device
MITSUBISHI ELECTRIC CORP24 citations92
US5585309ADec 17, 1996
Method of making semiconductor laser
MITSUBISHI ELECTRIC CORP21 citations90
US5390205AFeb 14, 1995
Semiconductor laser
MITSUBISHI ELECTRIC CORP33 citations90
US6798552B2Sep 28, 2004
Semiconductor light modulator
MITSUBISHI ELECTRIC CORP12 citations74
US5786234AJul 28, 1998
Method of fabricating semiconductor laser
MITSUBISHI ELECTRIC CORP16 citations74
US7390683B2Jun 24, 2008
Method of manufacturing a semiconductor device including a slab layer with a periodic air hole structure and a linear defect region
MITSUBISHI ELECTRIC CORP4 citations63
UNIV KYOTO
1 patentShowing the top 50 of 71 patents by PatentIndex Score.