Inventor
IKATA OSAMU
JP54 patents
⚠️ This page may combine multiple inventors who share the name “IKATA OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
45 patentsUS6380823B1Apr 30, 2002
Antenna duplexer with receiving, transmitting, and antenna terminal groups separated planarly
FUJITSU LTD94 citations98
US6115592ASep 5, 2000
Filter device and dual-band radio system in which the filter device is used
FUJITSU LTD94 citations97
US5859473AJan 12, 1999
Duplexer package
FUJITSU LTD60 citations96
US5631612AMay 20, 1997
Surface acoustic wave filter
FUJITSU LTD36 citations96
US5561406AOct 1, 1996
Duplexer package
FUJITSU LTD84 citations96
US5559481ASep 24, 1996
Surface acoustic wave filter
FUJITSU LTD66 citations96
US6037847AMar 14, 2000
Surface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrate
FUJITSU LTD74 citations95
US5786738AJul 28, 1998
Surface acoustic wave filter duplexer comprising a multi-layer package and phase matching patterns
FUJITSU LTD68 citations95
US5773917AJun 30, 1998
Surface acoustic wave device and production process thereof
FUJITSU LTD46 citations95
US7135944B2Nov 14, 2006
Branching filter having both saw ladder and dual mode filters, and electronic apparatus using the branching filter
FUJITSU LTD30 citations93
US6578421B1Jun 17, 2003
Acceleration sensor, acceleration sensor device, and method of fabricating an acceleration sensor
FUJITSU LTD25 citations93
US6121860ASep 19, 2000
Multimode surface acoustic wave filter with a coupling section not being a uniform metal film
FUJITSU LTD42 citations93
US6075426AJun 13, 2000
Surface acoustic wave device with an angle α related to specific piezoelectric substrates
FUJITSU LTD20 citations93
US7227429B2Jun 5, 2007
Surface acoustic wave device and method of fabricating the same
FUJITSU LTD20 citations92
US7067956B2Jun 27, 2006
Surface acoustic wave device, filter device and method of producing the surface acoustic wave device
FUJITSU LTD19 citations92
USRE37375ESep 18, 2001
Surface acoustic wave filter
FUJITSU LTD15 citations92
US5909156AJun 1, 1999
Surface acoustic wave device with multilayer electrodes and method for manufacturing the same
FUJITSU LTD48 citations92
US5796205AAug 18, 1998
Surface acoustic wave device and method of producing the same
FUJITSU LTD20 citations92
US5281883AJan 25, 1994
Surface acoustic wave device with improved junction bonding and package miniaturization
FUJITSU LTD25 citations92
US5179310AJan 12, 1993
Surface-acoustic-waver filter having a plurality of electrodes
FUJITSU LTD32 citations92
US6501344B2Dec 31, 2002
Duplexer device
FUJITSU LTD33 citations91
US6317015B1Nov 13, 2001
Surface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrate
FUJITSU LTD18 citations91
US5874866AFeb 23, 1999
Phase-shift oscillator having ladder-type saw filter feedback circuit
FUJITSU LTD34 citations90
USRE40036EJan 29, 2008
Surface acoustic wave filter
FUJITSU LTD9 citations84
US6919778B2Jul 19, 2005
Duplexer with an impedance matching circuit and an electronic device using the same
FUJITSU LTD15 citations84
US6570471B2May 27, 2003
Surface acoustic wave ladder filter having at least one resonator with electrode finger pairs in inverted orientation
FUJITSU LTD13 citations84
USRE37790EJul 16, 2002
Surface acoustic wave filter
FUJITSU LTD12 citations82
US6131257AOct 17, 2000
Method of making a surface acoustic wave device
FUJITSU LTD15 citations82
US5774962AJul 7, 1998
Process for producing a surface acoustic wave device
FUJITSU LTD15 citations81
US6796181B2Sep 28, 2004
Acceleration sensor
FUJITSU LTD9 citations74
US6597261B2Jul 22, 2003
Surface acoustic wave ladder filter using interdigital transducers not involving resonance
FUJITSU LTD7 citations74
US6577210B1Jun 10, 2003
Surface acoustic wave filter having plural propagation paths and a coupler
FUJITSU LTD12 citations74
US6552632B2Apr 22, 2003
Surface acoustic wave resonator with withdrawn electrodes and surface acoustic wave ladder filter using same
FUJITSU LTD8 citations74
US6525629B2Feb 25, 2003
Surface acoustic wave filter
FUJITSU LTD9 citations74
US6437479B1Aug 20, 2002
Surface acoustic wave device
FUJITSU LTD13 citations74
US6023204AFeb 8, 2000
Packaged surface acoustic wave filter chips utilizing an on-chip relay terminal
FUJITSU LTD11 citations74
US5999068ADec 7, 1999
Surface acoustic wave filter of multi-stage connection type
FUJITSU LTD9 citations74
US5955933ASep 21, 1999
Saw resonator with improved connections
FUJITSU LTD15 citations74
US5300902AApr 5, 1994
Surface acoustic wave device for band-pass filter having small insertion loss and predetermined pass-band characteristics for broad band
FUJITSU LTD15 citations74
USRE38278EOct 21, 2003
Surface acoustic wave device and production process thereof
FUJITSU LTD10 citations73
USRE38002EFeb 25, 2003
Process for providing a surface acoustic wave device
FUJITSU LTD5 citations73
US6466103B2Oct 15, 2002
Saw filter duplexer device with optimal location of a phase matching line pattern and wire bonding pads
FUJITSU LTD12 citations72
US6466108B2Oct 15, 2002
Surface acoustic wave resonator and filter using the same with specified distance between an interdigital transducer and reflector
FUJITSU LTD6 citations63
US6413439B1Jul 2, 2002
Method of manufacturing surface acoustic wave device
FUJITSU LTD3 citations63
US6388361B1May 14, 2002
Surface acoustic wave device and process for manufacturing the same
FUJITSU LTD6 citations63
FUJITSU MEDIA DEVICES LTD
3 patentsUS7800464B2Sep 21, 2010
Surface acoustic wave device and duplexer
FUJITSU MEDIA DEVICES LTD28 citations92
US7315455B2Jan 1, 2008
Surface-mounted electronic component module and method for manufacturing the same
FUJITSU MEDIA DEVICES LTD12 citations83
US6903630B2Jun 7, 2005
Surface acoustic wave device having a polarization inverted region
FUJITSU MEDIA DEVICES LTD8 citations74
FUJISTU MEDIA DEVICES LTD
1 patentTAIYO YUDEN KK
1 patentShowing the top 50 of 54 patents by PatentIndex Score.