Inventor · disambiguated record
Osamu Ikata
Also filed as: IKATA OSAMU
54 granted patents·2 pending applications·1,329 citations·filing 1991–2015
99Inventor score
Files withFUJITSU LTD49FUJITSU MEDIA DEVICES LTD3FUJISTU MEDIA DEVICES LTD1KAWACHI OSAMU1TAIYO YUDEN KK1
Top patents by PatentIndex Score
56 records- 0194US6380823B1Antenna duplexer with receiving, transmitting, and antenna terminal groups separated planarlyFUJITSU LTD·Filed 2000·Granted Apr 30, 2002·94 cites·11 claims
- 0294US5559481ASurface acoustic wave filterFUJITSU LTD·Filed 1992·Granted Sep 24, 1996·66 cites·52 claims
- 0393US10097158B2Acoustic wave device, filter, and duplexerTAIYO YUDEN KK·Filed 2015·Granted Oct 9, 2018·14 cites·14 claims
- 0493US6115592AFilter device and dual-band radio system in which the filter device is usedFUJITSU LTD·Filed 1996·Granted Sep 5, 2000·94 cites·11 claims
- 0592US7800464B2Surface acoustic wave device and duplexerFUJITSU MEDIA DEVICES LTD·Filed 2008·Granted Sep 21, 2010·28 cites·6 claims
- 0692US6037847ASurface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrateFUJITSU LTD·Filed 1996·Granted Mar 14, 2000·74 cites·24 claims
- 0789US5773917ASurface acoustic wave device and production process thereofFUJITSU LTD·Filed 1997·Granted Jun 30, 1998·46 cites·5 claims
- 0886US6578421B1Acceleration sensor, acceleration sensor device, and method of fabricating an acceleration sensorFUJITSU LTD·Filed 2000·Granted Jun 17, 2003·25 cites·5 claims
- 0986US6501344B2Duplexer deviceFUJITSU LTD·Filed 2001·Granted Dec 31, 2002·33 cites·8 claims
- 1086US5909156ASurface acoustic wave device with multilayer electrodes and method for manufacturing the sameFUJITSU LTD·Filed 1996·Granted Jun 1, 1999·48 cites·13 claims
- 1185US5631612ASurface acoustic wave filterFUJITSU LTD·Filed 1995·Granted May 20, 1997·36 cites·7 claims
- 1284US5874866APhase-shift oscillator having ladder-type saw filter feedback circuitFUJITSU LTD·Filed 1997·Granted Feb 23, 1999·34 cites·12 claims
- 1384US5561406ADuplexer packageFUJITSU LTD·Filed 1995·Granted Oct 1, 1996·84 cites·9 claims
- 1483US7227429B2Surface acoustic wave device and method of fabricating the sameFUJITSU LTD·Filed 2004·Granted Jun 5, 2007·20 cites·20 claims
- 1583US6121860AMultimode surface acoustic wave filter with a coupling section not being a uniform metal filmFUJITSU LTD·Filed 1997·Granted Sep 19, 2000·42 cites·49 claims
- 1681US7135944B2Branching filter having both saw ladder and dual mode filters, and electronic apparatus using the branching filterFUJITSU LTD·Filed 2002·Granted Nov 14, 2006·30 cites·36 claims
- 1781US5859473ADuplexer packageFUJITSU LTD·Filed 1997·Granted Jan 12, 1999·60 cites·11 claims
- 1881US5786738ASurface acoustic wave filter duplexer comprising a multi-layer package and phase matching patternsFUJITSU LTD·Filed 1996·Granted Jul 28, 1998·68 cites·11 claims
- 1980US7067956B2Surface acoustic wave device, filter device and method of producing the surface acoustic wave deviceFUJITSU LTD·Filed 2003·Granted Jun 27, 2006·19 cites·10 claims
- 2078US5179310ASurface-acoustic-waver filter having a plurality of electrodesFUJITSU LTD·Filed 1991·Granted Jan 12, 1993·32 cites·15 claims
- 2175US6946931B2Surface acoustic wave resonator and surface acoustic wave filterFUJISTU MEDIA DEVICES LTD·Filed 2002·Granted Sep 20, 2005·19 cites·17 claims
- 2272US6437479B1Surface acoustic wave deviceFUJITSU LTD·Filed 2001·Granted Aug 20, 2002·13 cites·7 claims
- 2370US6570471B2Surface acoustic wave ladder filter having at least one resonator with electrode finger pairs in inverted orientationFUJITSU LTD·Filed 2001·Granted May 27, 2003·13 cites·8 claims
- 2470US5796205ASurface acoustic wave device and method of producing the sameFUJITSU LTD·Filed 1996·Granted Aug 18, 1998·20 cites·9 claims
- 2569US6919778B2Duplexer with an impedance matching circuit and an electronic device using the sameFUJITSU LTD·Filed 2002·Granted Jul 19, 2005·15 cites·24 claims
- 2669US6577210B1Surface acoustic wave filter having plural propagation paths and a couplerFUJITSU LTD·Filed 2000·Granted Jun 10, 2003·12 cites·28 claims
- 2768US6796181B2Acceleration sensorFUJITSU LTD·Filed 2002·Granted Sep 28, 2004·9 cites·18 claims
- 2868US6466103B2Saw filter duplexer device with optimal location of a phase matching line pattern and wire bonding padsFUJITSU LTD·Filed 2001·Granted Oct 15, 2002·12 cites·14 claims
- 2968USRE37375ESurface acoustic wave filterFUJITSU LTD·Filed 1998·Granted Sep 18, 2001·15 cites·60 claims
- 3067US5774962AProcess for producing a surface acoustic wave deviceFUJITSU LTD·Filed 1996·Granted Jul 7, 1998·15 cites·6 claims
- 3166US6317015B1Surface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrateFUJITSU LTD·Filed 1999·Granted Nov 13, 2001·18 cites·2 claims
- 3266US6075426ASurface acoustic wave device with an angle α related to specific piezoelectric substratesFUJITSU LTD·Filed 1998·Granted Jun 13, 2000·20 cites·2 claims
- 3364US7315455B2Surface-mounted electronic component module and method for manufacturing the sameFUJITSU MEDIA DEVICES LTD·Filed 2003·Granted Jan 1, 2008·12 cites·7 claims
- 3463US6525629B2Surface acoustic wave filterFUJITSU LTD·Filed 2000·Granted Feb 25, 2003·9 cites·5 claims
- 3563US6131257AMethod of making a surface acoustic wave deviceFUJITSU LTD·Filed 1998·Granted Oct 17, 2000·15 cites·11 claims
- 3662USRE40036ESurface acoustic wave filterFUJITSU LTD·Filed 2001·Granted Jan 29, 2008·9 cites·22 claims
- 3762US6903630B2Surface acoustic wave device having a polarization inverted regionFUJITSU MEDIA DEVICES LTD·Filed 2003·Granted Jun 7, 2005·8 cites·28 claims
- 3862USRE37790ESurface acoustic wave filterFUJITSU LTD·Filed 1999·Granted Jul 16, 2002·12 cites·16 claims
- 3962US5955933ASaw resonator with improved connectionsFUJITSU LTD·Filed 1995·Granted Sep 21, 1999·15 cites·10 claims
- 4061US6552632B2Surface acoustic wave resonator with withdrawn electrodes and surface acoustic wave ladder filter using sameFUJITSU LTD·Filed 2001·Granted Apr 22, 2003·8 cites·10 claims
- 4159USRE38278ESurface acoustic wave device and production process thereofFUJITSU LTD·Filed 1999·Granted Oct 21, 2003·10 cites·37 claims
- 4259US6597261B2Surface acoustic wave ladder filter using interdigital transducers not involving resonanceFUJITSU LTD·Filed 2001·Granted Jul 22, 2003·7 cites·6 claims
- 4359USRE38002EProcess for providing a surface acoustic wave deviceFUJITSU LTD·Filed 2000·Granted Feb 25, 2003·5 cites·37 claims
- 4459US5300902ASurface acoustic wave device for band-pass filter having small insertion loss and predetermined pass-band characteristics for broad bandFUJITSU LTD·Filed 1992·Granted Apr 5, 1994·15 cites·7 claims
- 4557US6388361B1Surface acoustic wave device and process for manufacturing the sameFUJITSU LTD·Filed 2000·Granted May 14, 2002·6 cites·5 claims
- 4656US6466108B2Surface acoustic wave resonator and filter using the same with specified distance between an interdigital transducer and reflectorFUJITSU LTD·Filed 2001·Granted Oct 15, 2002·6 cites·6 claims
- 4756US6359368B1Surface acoustic wave reflectorFUJITSU LTD·Filed 2000·Granted Mar 19, 2002·6 cites·19 claims
- 4856US5281883ASurface acoustic wave device with improved junction bonding and package miniaturizationFUJITSU LTD·Filed 1991·Granted Jan 25, 1994·25 cites·16 claims
- 4952US6023204APackaged surface acoustic wave filter chips utilizing an on-chip relay terminalFUJITSU LTD·Filed 1998·Granted Feb 8, 2000·11 cites·6 claims
- 5047US5999068ASurface acoustic wave filter of multi-stage connection typeFUJITSU LTD·Filed 1998·Granted Dec 7, 1999·9 cites·7 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Osamu Ikata files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →