Inventor · disambiguated record
Kazuhiko Itaya
Also filed as: ITAYA KAZUHIKO
73 granted patents·10 pending applications·2,370 citations·filing 1989–2015
99Inventor score
Top patents by PatentIndex Score
83 records- 0198US6303405B1Semiconductor light emitting element, and its manufacturing methodTOSHIBA KK·Filed 1999·Granted Oct 16, 2001·427 cites·26 claims
- 0296US7583149B2Power supply apparatus, amplifier apparatus, radio apparatus and reproducing apparatusTOSHIBA KK·Filed 2007·Granted Sep 1, 2009·41 cites·9 claims
- 0396US7420320B2Piezoelectric thin film device and method for manufacturing the sameTOSHIBA KK·Filed 2007·Granted Sep 2, 2008·41 cites·7 claims
- 0496US7268647B2Film bulk acoustic-wave resonator and method for manufacturing the sameTOSHIBA KK·Filed 2007·Granted Sep 11, 2007·51 cites·5 claims
- 0595US7463117B2Film bulk acoustic-wave resonator (FBAR), filter implemented by FBARs and method for manufacturing FBARTOSHIBA KK·Filed 2005·Granted Dec 9, 2008·43 cites·11 claims
- 0695US7323805B2Piezoelectric thin film device and method for manufacturing the sameTOSHIBA KK·Filed 2005·Granted Jan 29, 2008·32 cites·15 claims
- 0795US6067309ACompound semiconductor light-emitting device of gallium nitride seriesTOSHIBA KK·Filed 1997·Granted May 23, 2000·138 cites·28 claims
- 0895US5786606ASemiconductor light-emitting deviceTOSHIBA KK·Filed 1996·Granted Jul 28, 1998·242 cites·10 claims
- 0994US5998810ASemiconductor light-emitting diode having a p-type semiconductor layer formed on a light-emitting layerTOSHIBA KK·Filed 1997·Granted Dec 7, 1999·100 cites·8 claims
- 1093US6252894B1Semiconductor laser using gallium nitride series compound semiconductorTOSHIBA KK·Filed 1999·Granted Jun 26, 2001·132 cites·20 claims
- 1193US5740192ASemiconductor laserTOSHIBA KK·Filed 1996·Granted Apr 14, 1998·93 cites·22 claims
- 1293US5153889ASemiconductor light emitting deviceTOSHIBA KK·Filed 1991·Granted Oct 6, 1992·140 cites·10 claims
- 1391US7187253B2Film bulk acoustic-wave resonator and method for manufacturing the sameTOSHIBA KK·Filed 2005·Granted Mar 6, 2007·22 cites·14 claims
- 1490US7705611B2Sensor device, and portable communication terminal and electronic device using the sensor deviceTOSHIBA KK·Filed 2007·Granted Apr 27, 2010·17 cites·17 claims
- 1590US7498904B2Piezoelectric thin film resonator and devices provided with the sameTOSHIBA KK·Filed 2006·Granted Mar 3, 2009·22 cites·20 claims
- 1688US7732990B2Piezoelectric driven MEMS deviceTOSHIBA KK·Filed 2007·Granted Jun 8, 2010·17 cites·13 claims
- 1788US5932896ANitride system semiconductor device with oxygenTOSHIBA KK·Filed 1997·Granted Aug 3, 1999·111 cites·16 claims
- 1886US7508268B2Power amplifier and transmission and reception systemTOSHIBA KK·Filed 2007·Granted Mar 24, 2009·13 cites·15 claims
- 1984US8980697B2Method of fabricating chip scale packageTOSHIBA KK·Filed 2013·Granted Mar 17, 2015·5 cites·8 claims
- 2083US8324707B2Power amplifierSASAKI TADAHIRO·Filed 2011·Granted Dec 4, 2012·8 cites·12 claims
- 2182US5903017ACompound semiconductor device formed of nitrogen-containing gallium compound such as GaN, AlGaN or InGaNTOSHIBA KK·Filed 1997·Granted May 11, 1999·75 cites·11 claims
- 2281US6147364ACompound semiconductor device formed of nitrogen-containing gallium compound such as gan, algan or inganTOSHIBA KK·Filed 1998·Granted Nov 14, 2000·68 cites·10 claims
- 2380US5466950ASemiconductor light emitting device with short wavelength light selecting meansTOSHIBA KK·Filed 1994·Granted Nov 14, 1995·47 cites·18 claims
- 2480US4893313ASemiconductor laser device which has a double-hetero structure having an optimal layer thicknessTOSHIBA KK·Filed 1989·Granted Jan 9, 1990·23 cites·23 claims
- 2579US5780873ASemiconductor device capable of easily forming cavity and its manufacturing methodTOSHIBA KK·Filed 1996·Granted Jul 14, 1998·68 cites·14 claims
- 2678US7851833B2Semiconductor deviceTOSHIBA KK·Filed 2009·Granted Dec 14, 2010·8 cites·13 claims
- 2777US7906823B2MEMS apparatus and method of manufacturing the sameTOSHIBA KK·Filed 2008·Granted Mar 15, 2011·5 cites·9 claims
- 2876US9112475B2EBG structure and circuit boardTOSHIBA KK·Filed 2013·Granted Aug 18, 2015·4 cites·14 claims
- 2975US8039873B2Semiconductor deviceTOSHIBA KK·Filed 2008·Granted Oct 18, 2011·6 cites·5 claims
- 3075US6204084B1Nitride system semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 1999·Granted Mar 20, 2001·50 cites·12 claims
- 3175US5282218ASemiconductor laser deviceTOSHIBA KK·Filed 1992·Granted Jan 25, 1994·33 cites·20 claims
- 3274US7875481B2Semiconductor apparatus and method for manufacturing the sameTOSHIBA KK·Filed 2008·Granted Jan 25, 2011·5 cites·15 claims
- 3373US7221920B2Voltage controlled oscillator, frequency synthesizer and communication apparatusTOSHIBA KK·Filed 2004·Granted May 22, 2007·19 cites·17 claims
- 3473US5410159ALight-emitting diodeTOSHIBA KK·Filed 1993·Granted Apr 25, 1995·32 cites·10 claims
- 3573US5036521ASemiconductor laser deviceTOSHIBA KK·Filed 1989·Granted Jul 30, 1991·17 cites·12 claims
- 3673US4987096AManufacturing method of semiconductor laser with non-absorbing mirror structureTOSHIBA KK·Filed 1989·Granted Jan 22, 1991·20 cites·13 claims
- 3772US8008760B2Integrated semiconductor deviceTOSHIBA KK·Filed 2009·Granted Aug 30, 2011·3 cites·8 claims
- 3872US7770274B2Piezoelectric thin film device and method for manufacturing the sameTOSHIBA KK·Filed 2007·Granted Aug 10, 2010·5 cites·6 claims
- 3972US7501739B2Thin film piezoelectric resonator and manufacturing process thereofTOSHIBA KK·Filed 2005·Granted Mar 10, 2009·7 cites·11 claims
- 4072US5343486ASemiconductor laser deviceTOSHIBA KK·Filed 1992·Granted Aug 30, 1994·27 cites·30 claims
- 4171US7876105B2Sensor device and display apparatusTOSHIBA KK·Filed 2008·Granted Jan 25, 2011·6 cites·20 claims
- 4271US7560853B2Thin film piezoelectric resonator, method of manufacturing the same, and filter including the sameTOSHIBA KK·Filed 2007·Granted Jul 14, 2009·6 cites·14 claims
- 4369US7937056B2Variable capacitance device and portable phoneTOSHIBA KK·Filed 2007·Granted May 3, 2011·5 cites·12 claims
- 4469US7525399B2Thin-film piezoelectric resonator, filter and voltage-controlled oscillatorTOSHIBA KK·Filed 2006·Granted Apr 28, 2009·6 cites·11 claims
- 4567US7893525B2Semiconductor device having an adhesive portion with a stacked structure and method for manufacturing the sameTOSHIBA KK·Filed 2009·Granted Feb 22, 2011·3 cites·6 claims
- 4667US7709999B2Thin film piezoelectric resonator and method of manufacturing the sameTOSHIBA KK·Filed 2006·Granted May 4, 2010·5 cites·16 claims
- 4766US8951905B2Semiconductor device and production method thereofTOSHIBA KK·Filed 2013·Granted Feb 10, 2015·1 cites·10 claims
- 4865US8305147B2Power amplifierSASAKI TADAHIRO·Filed 2012·Granted Nov 6, 2012·2 cites·5 claims
- 4965US5459746ASurface emission type semiconductor light-emitting deviceTOSHIBA KK·Filed 1993·Granted Oct 17, 1995·21 cites·18 claims
- 5062US9153680B2Stimulated phonon emission device and oscillator, frequency filter, cooling device, light-receiving device, and light-emitting device comprising the stimulated phonon emission deviceTOSHIBA KK·Filed 2013·Granted Oct 6, 2015·0 cites·16 claims
Showing the top 50 of 83 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Kazuhiko Itaya 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 →