Inventor
ITAYA KAZUHIKO
JP73 patents
⚠️ This page may combine multiple inventors who share the name “ITAYA KAZUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
49 patentsUS6303405B1Oct 16, 2001
Semiconductor light emitting element, and its manufacturing method
TOSHIBA KK427 citations99
US5786606AJul 28, 1998
Semiconductor light-emitting device
TOSHIBA KK242 citations99
US6067309AMay 23, 2000
Compound semiconductor light-emitting device of gallium nitride series
TOSHIBA KK138 citations98
US5998810ADec 7, 1999
Semiconductor light-emitting diode having a p-type semiconductor layer formed on a light-emitting layer
TOSHIBA KK100 citations98
US5932896AAug 3, 1999
Nitride system semiconductor device with oxygen
TOSHIBA KK111 citations98
US5153889AOct 6, 1992
Semiconductor light emitting device
TOSHIBA KK140 citations98
US7420320B2Sep 2, 2008
Piezoelectric thin film device and method for manufacturing the same
TOSHIBA KK41 citations96
US7268647B2Sep 11, 2007
Film bulk acoustic-wave resonator and method for manufacturing the same
TOSHIBA KK51 citations96
US6204084B1Mar 20, 2001
Nitride system semiconductor device and method for manufacturing the same
TOSHIBA KK50 citations96
US6147364ANov 14, 2000
Compound semiconductor device formed of nitrogen-containing gallium compound such as gan, algan or ingan
TOSHIBA KK68 citations96
US5903017AMay 11, 1999
Compound semiconductor device formed of nitrogen-containing gallium compound such as GaN, AlGaN or InGaN
TOSHIBA KK75 citations96
US5780873AJul 14, 1998
Semiconductor device capable of easily forming cavity and its manufacturing method
TOSHIBA KK68 citations96
US5740192AApr 14, 1998
Semiconductor laser
TOSHIBA KK93 citations96
US6252894B1Jun 26, 2001
Semiconductor laser using gallium nitride series compound semiconductor
TOSHIBA KK132 citations95
US7583149B2Sep 1, 2009
Power supply apparatus, amplifier apparatus, radio apparatus and reproducing apparatus
TOSHIBA KK41 citations93
US5466950ANov 14, 1995
Semiconductor light emitting device with short wavelength light selecting means
TOSHIBA KK47 citations93
US5459746AOct 17, 1995
Surface emission type semiconductor light-emitting device
TOSHIBA KK21 citations93
US5410159AApr 25, 1995
Light-emitting diode
TOSHIBA KK32 citations93
US5343486AAug 30, 1994
Semiconductor laser device
TOSHIBA KK27 citations93
US5321712AJun 14, 1994
Semiconductor light-emitting device having a cladding layer composed of an InGaAlp-based compound
TOSHIBA KK21 citations93
US7705611B2Apr 27, 2010
Sensor device, and portable communication terminal and electronic device using the sensor device
TOSHIBA KK17 citations92
US7498904B2Mar 3, 2009
Piezoelectric thin film resonator and devices provided with the same
TOSHIBA KK22 citations92
US7463117B2Dec 9, 2008
Film bulk acoustic-wave resonator (FBAR), filter implemented by FBARs and method for manufacturing FBAR
TOSHIBA KK43 citations92
US7323805B2Jan 29, 2008
Piezoelectric thin film device and method for manufacturing the same
TOSHIBA KK32 citations92
US7187253B2Mar 6, 2007
Film bulk acoustic-wave resonator and method for manufacturing the same
TOSHIBA KK22 citations92
US5282218AJan 25, 1994
Semiconductor laser device
TOSHIBA KK33 citations92
US4893313AJan 9, 1990
Semiconductor laser device which has a double-hetero structure having an optimal layer thickness
TOSHIBA KK23 citations92
US7221920B2May 22, 2007
Voltage controlled oscillator, frequency synthesizer and communication apparatus
TOSHIBA KK19 citations91
US7851833B2Dec 14, 2010
Semiconductor device
TOSHIBA KK8 citations84
US7732990B2Jun 8, 2010
Piezoelectric driven MEMS device
TOSHIBA KK17 citations84
US7508268B2Mar 24, 2009
Power amplifier and transmission and reception system
TOSHIBA KK13 citations84
US5036521AJul 30, 1991
Semiconductor laser device
TOSHIBA KK17 citations82
US4987096AJan 22, 1991
Manufacturing method of semiconductor laser with non-absorbing mirror structure
TOSHIBA KK20 citations82
US7770274B2Aug 10, 2010
Piezoelectric thin film device and method for manufacturing the same
TOSHIBA KK5 citations74
US7501739B2Mar 10, 2009
Thin film piezoelectric resonator and manufacturing process thereof
TOSHIBA KK7 citations74
US5389800AFeb 14, 1995
Semiconductor light-emitting device
TOSHIBA KK9 citations74
US5305341AApr 19, 1994
Semiconductor laser whose active layer has an ordered structure
TOSHIBA KK12 citations74
US5181218AJan 19, 1993
Manufacturing method of semiconductor laser with non-absorbing mirror structure
TOSHIBA KK16 citations74
US5138404AAug 11, 1992
Semiconductor device for passing current between a GaAs layer and an InGaAlP layer
TOSHIBA KK10 citations74
US5023880AJun 11, 1991
Semiconductor laser device
TOSHIBA KK15 citations74
US9112475B2Aug 18, 2015
EBG structure and circuit board
TOSHIBA KK4 citations73
US8980697B2Mar 17, 2015
Method of fabricating chip scale package
TOSHIBA KK5 citations73
US8039873B2Oct 18, 2011
Semiconductor device
TOSHIBA KK6 citations63
US8008760B2Aug 30, 2011
Integrated semiconductor device
TOSHIBA KK3 citations63
US7937056B2May 3, 2011
Variable capacitance device and portable phone
TOSHIBA KK5 citations63
US7906823B2Mar 15, 2011
MEMS apparatus and method of manufacturing the same
TOSHIBA KK5 citations63
US7893525B2Feb 22, 2011
Semiconductor device having an adhesive portion with a stacked structure and method for manufacturing the same
TOSHIBA KK3 citations63
US7875481B2Jan 25, 2011
Semiconductor apparatus and method for manufacturing the same
TOSHIBA KK5 citations63
US7709999B2May 4, 2010
Thin film piezoelectric resonator and method of manufacturing the same
TOSHIBA KK5 citations63
SASAKI TADAHIRO
1 patentShowing the top 50 of 73 patents by PatentIndex Score.