Inventor · disambiguated record
Takashi Hirao
Also filed as: HIRAO TAKASHI
69 granted patents·8 pending applications·2,329 citations·filing 1977–2022
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD31HITACHI ASTEMO LTD8HITACHI AUTOMOTIVE SYSTEMS LTD7KOCHI IND PROMOTION CT5AKIYAMA NOBORU4
Top patents by PatentIndex Score
77 records- 0198US7993964B2Manufacturing method of semiconductor device including active layer of zinc oxide with controlled crystal lattice spacingKOCHI IND PROMOTION CT·Filed 2009·Granted Aug 9, 2011·214 cites·6 claims
- 0298US7598520B2Semiconductor device including active layer of zinc oxide with controlled crystal lattice spacing and manufacturing method thereofKOCHI IND PROMOTION CT·Filed 2007·Granted Oct 6, 2009·238 cites·19 claims
- 0398US7576394B2Thin film transistor including low resistance conductive thin films and manufacturing method thereofKOCHI IND PROMOTION CT·Filed 2007·Granted Aug 18, 2009·231 cites·15 claims
- 0498US4859908APlasma processing apparatus for large area ion irradiationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Aug 22, 1989·230 cites·19 claims
- 0597US7981734B2Manufacturing method of thin film transistor including low resistance conductive thin filmsKOCHI IND PROMOTION CT·Filed 2009·Granted Jul 19, 2011·90 cites·8 claims
- 0697US7977169B2Semiconductor device including active layer made of zinc oxide with controlled orientations and manufacturing method thereofKOCHI IND PROMOTION CT·Filed 2007·Granted Jul 12, 2011·125 cites·12 claims
- 0797US5814194ASubstrate surface treatment methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 29, 1998·134 cites·16 claims
- 0894US4800174AMethod for producing an amorphous silicon semiconductor device using a multichamber PECVD apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Jan 24, 1989·103 cites·5 claims
- 0992US8901838B2Semiconductor device, LED driving circuit, and apparatus for displaying an imageAKIYAMA NOBORU·Filed 2012·Granted Dec 2, 2014·13 cites·15 claims
- 1091US10884030B2Current detection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jan 5, 2021·4 cites·5 claims
- 1191US6207282B1Substrate surface treatment methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 27, 2001·62 cites·15 claims
- 1289US9711590B2Semiconductor device, or crystalFLOSFIA INC·Filed 2013·Granted Jul 18, 2017·8 cites·20 claims
- 1389US7928505B2Semiconductor device with vertical trench and lightly doped regionRENESAS ELECTRONICS CORP·Filed 2008·Granted Apr 19, 2011·16 cites·16 claims
- 1489US5662965AMethod of depositing crystalline carbon-based thin filmsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Sep 2, 1997·70 cites·13 claims
- 1588US8203380B2Semiconductor deviceHASHIMOTO TAKAYUKI·Filed 2009·Granted Jun 19, 2012·16 cites·6 claims
- 1687US7782098B2Drive circuit and inverter for voltage driving type semiconductor deviceHITACHI LTD·Filed 2008·Granted Aug 24, 2010·15 cites·8 claims
- 1787US5203925AApparatus for producing a thin film of tantalum oxideMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Apr 20, 1993·64 cites·4 claims
- 1886US8120345B2Semiconductor device and power supply using the sameAKIYAMA NOBORU·Filed 2009·Granted Feb 21, 2012·23 cites·15 claims
- 1986US8018255B2DC-DC converter, driver IC, and system in packageRENESAS ELECTRONICS CORP·Filed 2008·Granted Sep 13, 2011·15 cites·7 claims
- 2084US8745443B2Memory systemHIRAO TAKASHI·Filed 2011·Granted Jun 3, 2014·10 cites·22 claims
- 2183US5674366AMethod and apparatus for fabrication of dielectric thin filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 7, 1997·59 cites·12 claims
- 2282US5470398ADielectric thin film and method of manufacturing sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Nov 28, 1995·50 cites·5 claims
- 2381US8258711B2Semiconductor device, LED driving circuit, and apparatus for displaying an imageAKIYAMA NOBORU·Filed 2010·Granted Sep 4, 2012·5 cites·15 claims
- 2480US8924636B2Management information generating method, logical block constructing method, and semiconductor memory deviceHIRAO TAKASHI·Filed 2012·Granted Dec 30, 2014·8 cites·20 claims
- 2579US4185291AJunction-type field effect transistor and method of making the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Jan 22, 1980·25 cites·18 claims
- 2679US4143388AMos type semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1977·Granted Mar 6, 1979·36 cites·20 claims
- 2778US4861729AMethod of doping impurities into sidewall of trench by use of plasma sourceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Aug 29, 1989·51 cites·6 claims
- 2877US5719740ACapacitance sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Feb 17, 1998·34 cites·5 claims
- 2975US5141885AMethod of fabrication of thin film transistorsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Aug 25, 1992·56 cites·5 claims
- 3074US10109549B2Semiconductor device and power conversion device using sameHITACHI LTD·Filed 2014·Granted Oct 23, 2018·3 cites·15 claims
- 3174US9251055B2Memory system and control method of memory systemYONEZAWA SHINJI·Filed 2012·Granted Feb 2, 2016·4 cites·19 claims
- 3274US4980339ASuperconductor structureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Dec 25, 1990·33 cites·8 claims
- 3374US4624045AMethod of making thin film deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Nov 25, 1986·46 cites·2 claims
- 3472US7144702B2Method for detecting target plant genusHOUSE FOODS CORP·Filed 2002·Granted Dec 5, 2006·1 cites·21 claims
- 3571US7704694B2Method for detecting target plant genusHOUSE FOODS CORP·Filed 2008·Granted Apr 27, 2010·0 cites·16 claims
- 3671US5507080AMethod of manufacturing a capacitance sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Apr 16, 1996·26 cites·8 claims
- 3770US5431733ALow vapor-pressure material feeding apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jul 11, 1995·30 cites·12 claims
- 3869US11469160B2Power module with active elements and intermediate electrode that connects conductorsHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Oct 11, 2022·1 cites·7 claims
- 3967US8825946B2Memory system and data writing methodKATO RYOICHI·Filed 2012·Granted Sep 2, 2014·2 cites·20 claims
- 4066US8125206B2Semiconductor device and power supply using the sameAKIYAMA NOBORU·Filed 2008·Granted Feb 28, 2012·7 cites·3 claims
- 4166US7402391B2Method for detecting target plant genusHOUSE FOODS CORP·Filed 2006·Granted Jul 22, 2008·0 cites·16 claims
- 4262US12184189B2Power conversion deviceHITACHI ASTEMO LTD·Filed 2021·Granted Dec 31, 2024·0 cites·6 claims
- 4360US5252174AMethod for manufacturing substrates for depositing diamond thin filmsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Oct 12, 1993·13 cites·5 claims
- 4458US12469755B2Power module and power conversion device using the sameHITACHI LTD·Filed 2021·Granted Nov 11, 2025·0 cites·10 claims
- 4558US5328855AFormation of semiconductor diamondMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jul 12, 1994·27 cites·14 claims
- 4657US11956933B2Power conversion device and motor-integrated power conversion deviceHITACHI ASTEMO LTD·Filed 2020·Granted Apr 9, 2024·0 cites·8 claims
- 4757US5766342AMethod for forming silicon film and silicon film forming apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jun 16, 1998·19 cites·23 claims
- 4854US6105225AMethod of manufacturing a thin film sensor elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Aug 22, 2000·13 cites·22 claims
- 4954US5672252AMethod and apparatus for fabrication of dielectric filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 30, 1997·16 cites·13 claims
- 5053US12316171B2Inverter integrated motorHITACHI ASTEMO LTD·Filed 2021·Granted May 27, 2025·0 cites·6 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →