Inventor · disambiguated record
Hideaki Nakahata
Also filed as: NAKAHATA HIDEAKI
106 granted patents·18 pending applications·1,488 citations·filing 1988–2017
99Inventor score
Top patents by PatentIndex Score
124 records- 0196US8404042B2Group-III nitride crystal compositeMIZUHARA NAHO·Filed 2012·Granted Mar 26, 2013·28 cites·20 claims
- 0296US4952832ASurface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Aug 28, 1990·88 cites·12 claims
- 0395US7772585B2Nitride semiconductor substrate and method of producing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Aug 10, 2010·24 cites·23 claims
- 0493US7732236B2III nitride semiconductor crystal and manufacturing method thereof, III nitride semiconductor device manufacturing method thereof, and light emitting deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Jun 8, 2010·20 cites·14 claims
- 0591US8258051B2Method of manufacturing III-nitride crystal, and semiconductor device utilizing the crystalMIZUHARA NAHO·Filed 2009·Granted Sep 4, 2012·14 cites·8 claims
- 0691US7771532B2Nitride semiconductor substrate and method of producing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Granted Aug 10, 2010·14 cites·28 claims
- 0791US7528055B2Method of producing a nitride semiconductor device and nitride semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted May 5, 2009·15 cites·68 claims
- 0890US4982243ASchottky contactSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Jan 1, 1991·62 cites·6 claims
- 0989US6320296B1Diamond wafer, method of estimating a diamond wafer and diamond surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Nov 20, 2001·31 cites·2 claims
- 1089US5446329ASurface acoustic wave elementSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Aug 29, 1995·52 cites·15 claims
- 1189US5401544AMethod for manufacturing a surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Mar 28, 1995·48 cites·9 claims
- 1287US5426340ASurface acoustic wave device and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Jun 20, 1995·44 cites·27 claims
- 1386US5373171AThin film single crystal substrateSUMITOMO ELECTRIC INDUSTRIES·Filed 1988·Granted Dec 13, 1994·74 cites·7 claims
- 1486US5343107ASurface acoustic wave element and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Aug 30, 1994·35 cites·3 claims
- 1586US5221870ASurface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Jun 22, 1993·43 cites·6 claims
- 1685US10693387B2TransformerSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Jun 23, 2020·9 cites·16 claims
- 1785US5565724AOrientational material, orientational substrate and surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Oct 15, 1996·38 cites·25 claims
- 1885US5329208ASurface acoustic wave device and method for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jul 12, 1994·40 cites·6 claims
- 1984US5355568AMethod of making a surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Oct 18, 1994·32 cites·2 claims
- 2083US7995267B2Wavelength converter manufacturing method and wavelength converterSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Granted Aug 9, 2011·7 cites·7 claims
- 2182US8872309B2Composite of III-nitride crystal on laterally stacked substratesSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Oct 28, 2014·3 cites·3 claims
- 2282US7691732B2Manufacturing method of nitride substrate, nitride substrate, and nitride-based semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2008·Granted Apr 6, 2010·8 cites·8 claims
- 2381US9577131B2Concentrator photovoltaic module, concentrator photovoltaic panel, and flexible printed circuit for concentrator photovoltaic moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Feb 21, 2017·3 cites·11 claims
- 2481US9040955B2Semiconductor device, optical sensor device and semiconductor device manufacturing methodFUJII KEI·Filed 2011·Granted May 26, 2015·2 cites·11 claims
- 2581US8709923B2Method of manufacturing III-nitride crystalSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Apr 29, 2014·3 cites·6 claims
- 2681US8642943B2Semiconductor wafer, light-receiving element, light-receiving element array, hybrid-type detection device, optical sensor device, and process for production of semiconductor waferMORI HIROKI·Filed 2010·Granted Feb 4, 2014·4 cites·16 claims
- 2781US7129525B2Semiconductor light-emitting deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Oct 31, 2006·7 cites·25 claims
- 2881US6051063ADiamond wafer and method of producing a diamond waferSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Apr 18, 2000·51 cites·10 claims
- 2980US8148751B2Group III nitride semiconductor wafer and group III nitride semiconductor deviceHASHIMOTO SHIN·Filed 2010·Granted Apr 3, 2012·4 cites·12 claims
- 3080US5390401AMethod for producing a surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Feb 21, 1995·40 cites·3 claims
- 3179US8592289B2Epitaxial wafer, method for manufacturing gallium nitride semiconductor device, gallium nitride semiconductor device and gallium oxide waferHASHIMOTO SHIN·Filed 2010·Granted Nov 26, 2013·4 cites·20 claims
- 3279US8421190B2Group III nitride semiconductor substrate and manufacturing method thereofOKAHISA TAKUJI·Filed 2010·Granted Apr 16, 2013·4 cites·7 claims
- 3379US5160869ASurface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Nov 3, 1992·30 cites·12 claims
- 3477US5874775ADiamond heat sink including microchannel therein and methods for manufacturing diamond heat sinksSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Feb 23, 1999·52 cites·6 claims
- 3577US5497726AMethod of manufacturing a surface acoustic wave elementSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Mar 12, 1996·23 cites·16 claims
- 3676US6448688B2Hard carbon film and surface-acoustic-wave substrateSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Sep 10, 2002·13 cites·3 claims
- 3776US5888646ASurface acoustic wave deviceNEC CORP·Filed 1997·Granted Mar 30, 1999·30 cites·9 claims
- 3875US8361226B2III-nitride single-crystal growth methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Jan 29, 2013·2 cites·10 claims
- 3974US8367577B2Thin film of aluminum nitride and process for producing the thin film of aluminum nitrideSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Granted Feb 5, 2013·1 cites·5 claims
- 4074US5001452ASemiconducting diamond and process for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1988·Granted Mar 19, 1991·19 cites·13 claims
- 4173US8415180B2Method for fabricating wafer product and method for fabricating gallium nitride based semiconductor optical deviceHASHIMOTO SHIN·Filed 2010·Granted Apr 9, 2013·2 cites·24 claims
- 4273US5294858ASurface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Mar 15, 1994·24 cites·4 claims
- 4372US8702865B2AlxGa1-xN crystal substrateSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted Apr 22, 2014·2 cites·2 claims
- 4472US8362521B2III nitride semiconductor crystal, III nitride semiconductor device, and light emitting deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2010·Granted Jan 29, 2013·2 cites·13 claims
- 4572US5440189ASurface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Aug 8, 1995·43 cites·3 claims
- 4672US5320865AMethod of manufacturing a surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jun 14, 1994·23 cites·16 claims
- 4771US8198623B2Photodiode array, method for manufacturing photodiode array, epitaxial wafer, and method for manufacturing epitaxial waferAKITA KATSUSHI·Filed 2010·Granted Jun 12, 2012·2 cites·11 claims
- 4870US6642813B1Surface acoustic wave device utilizing a ZnO layer and a diamond layerSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Nov 4, 2003·14 cites·8 claims
- 4969US6210780B1Diamond wafer, method of estimating a diamond wafer and diamond surface acoustic wave deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1998·Granted Apr 3, 2001·17 cites·10 claims
- 5069US5776246ADiamond wafer and method of producing a diamond waferSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Jul 7, 1998·32 cites·25 claims
Showing the top 50 of 124 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →