Inventor · disambiguated record
Masatoshi Hasegawa
Also filed as: HASEGAWA MASATOSHI
47 granted patents·14 pending applications·1,159 citations·filing 1986–2022
98Inventor score
Files withHITACHI LTD23HASEGAWA MASATOSHI5HITACHI ULSI SYS CO LTD4ULTRAMEMORY INC4RENESAS TECH CORP3
Top patents by PatentIndex Score
61 records- 0197US7177215B2Semiconductor memory device operating at high speed and low power consumptionHITACHI LTD·Filed 2005·Granted Feb 13, 2007·123 cites·5 claims
- 0296US6795358B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2003·Granted Sep 21, 2004·130 cites·13 claims
- 0395US6977856B2Semiconductor integrated circuit device operating at high speed and low power consumptionHITACHI LTD·Filed 2004·Granted Dec 20, 2005·115 cites·18 claims
- 0493US7016214B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2004·Granted Mar 21, 2006·195 cites·10 claims
- 0592US7193912B2Semiconductor integrated circuit deviceHITACHI ULSI SYS CO LTD·Filed 2005·Granted Mar 20, 2007·32 cites·10 claims
- 0688US6281323B1Terminal-modified imide oligomers and cured products thereofUBE INDUSTRIES·Filed 1999·Granted Aug 28, 2001·43 cites·7 claims
- 0787US6411543B2Dynamic random access memory (RAM), semiconductor storage device, and semiconductor integrated circuit (IC) deviceHITACHI LTD·Filed 2001·Granted Jun 25, 2002·43 cites·18 claims
- 0885US6201728B1Dynamic RAM, semiconductor storage device, and semiconductor integrated circuit deviceHITACHI LTD·Filed 1996·Granted Mar 13, 2001·60 cites·23 claims
- 0984US7521167B2Ester group-containing poly (imide-azomethine) copolymer, ester group-containing poly (amide acid-azomethine) copolymer, and positive photosensitive resin compositionSONY CORP·Filed 2006·Granted Apr 21, 2009·7 cites·15 claims
- 1084US7440350B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2007·Granted Oct 21, 2008·15 cites·6 claims
- 1184US5726930ASemiconductor memory deviceHITACHI LTD·Filed 1996·Granted Mar 10, 1998·59 cites·14 claims
- 1282US6603688B2Semiconductor memory device having improved arrangement for replacing failed bit linesHITACHI LTD·Filed 2001·Granted Aug 5, 2003·23 cites·20 claims
- 1381US5615145ASemiconductor memory with ferroelectric capacitorsHITACHI LTD·Filed 1995·Granted Mar 25, 1997·50 cites·18 claims
- 1480US5905685ADynamic memoryHITACHI LTD·Filed 1997·Granted May 18, 1999·48 cites·16 claims
- 1579US5963467ASemiconductor memory deviceHITACHI LTD·Filed 1997·Granted Oct 5, 1999·41 cites·13 claims
- 1678US6954371B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2004·Granted Oct 11, 2005·23 cites·10 claims
- 1777US7145792B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2005·Granted Dec 5, 2006·10 cites·9 claims
- 1875US7635551B2Poly (imide-azomethine) copolymer, poly (amic acid-azomethine) copolymer, and positive photosensitive resin compositionSONY CORP·Filed 2005·Granted Dec 22, 2009·2 cites·4 claims
- 1974US8466252B2Optical film, optical film manufacturing method, transparent substrate, image display device, and solar cellHASEGAWA MASATOSHI·Filed 2010·Granted Jun 18, 2013·2 cites·16 claims
- 2074US7495978B2Semiconductor device and memory circuit including a redundancy arrangementELPIDA MEMORY INC·Filed 2007·Granted Feb 24, 2009·6 cites·5 claims
- 2174US7184330B2Semiconductor memory deviceHITACHI ULSI SYS CO LTD·Filed 2005·Granted Feb 27, 2007·9 cites·5 claims
- 2270US6794678B2Semiconductor integrated circuit device, method of testing semiconductor integrated circuit device and method of manufacturing semiconductor integrated circuit deviceHITACHI LTD·Filed 2002·Granted Sep 21, 2004·16 cites·6 claims
- 2369US9023974B2Ester group-containing tetracarboxylic acid dianhydride, novel polyesterimide precursor derived therefrom, and polyesterimideHASEGAWA MASATOSHI·Filed 2008·Granted May 5, 2015·1 cites·1 claims
- 2468US9753689B2Audio processing apparatusYAMAHA CORP·Filed 2016·Granted Sep 5, 2017·1 cites·9 claims
- 2567US7462604B2Hair growth promotor compositionLION CORP·Filed 2004·Granted Dec 9, 2008·3 cites·1 claims
- 2666US7269087B2Semiconductor memory deviceELPIDA MEMORY INC·Filed 2005·Granted Sep 11, 2007·4 cites·3 claims
- 2763US4990530AIndomethacin injections and their production methodSUMITOMO PHARMA·Filed 1989·Granted Feb 5, 1991·13 cites·9 claims
- 2861US7109076B2Method of manufacturing semiconductor integrated circuit device, and semiconductor integrated circuit device made by its methodRENESAS TECH CORP·Filed 2004·Granted Sep 19, 2006·9 cites·7 claims
- 2961US6909646B2Semiconductor memory device having improved arrangement for replacing failed bit linesHITACHI LTD·Filed 2003·Granted Jun 21, 2005·8 cites·11 claims
- 3059US8638593B2Semiconductor deviceTAKAGI TAKUMI·Filed 2012·Granted Jan 28, 2014·3 cites·6 claims
- 3159US2022372223A1Polyimide, varnish, and filmENEOS CORP·Filed 2020·Application pending·0 cites
- 3257US6735129B2Semiconductor integrated circuit deviceRENESAS TECH CORP·Filed 2002·Granted May 11, 2004·8 cites·18 claims
- 3355US7251149B2Semiconductor memory device provided with a write column selection switch and a read column selection switch separatelyHITACHI LTD·Filed 2006·Granted Jul 31, 2007·3 cites·4 claims
- 3455US4726340AIntake system for multi-cylinder engineYAMAHA MOTOR CO LTD·Filed 1986·Granted Feb 23, 1988·15 cites·14 claims
- 3553US7122617B2Polybenzazole precursor film, polybenzazole film and method of producing the samePOLYMATECH CO LTD·Filed 2003·Granted Oct 17, 2006·2 cites·27 claims
- 3653US7023749B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2005·Granted Apr 4, 2006·2 cites·7 claims
- 3753US2010147564A1Asymmetric linear polyimides and their polyimide precursors, and their manufacturing methodsJFE CHEMICAL CORP·Filed 2008·Application pending·0 cites
- 3852US7162671B2Semiconductor integrated circuit device, method of testing semiconductor integrated circuit device and method of manufacturing semiconductor integrated circuit deviceHITACHI ULSI SYS CO LTD·Filed 2004·Granted Jan 9, 2007·6 cites·4 claims
- 3951US12212941B2Signal processing apparatus and signal processing methodYAMAHA CORP·Filed 2022·Granted Jan 28, 2025·0 cites·6 claims
- 4051US7729198B2Synchronous memory circuitHITACHI LTD·Filed 2007·Granted Jun 1, 2010·2 cites·4 claims
- 4151US2011257360A1Tetracarboxylic acid or polyesterimide thereof and process for producing the sameMITSUBISHI CHEM CORP·Filed 2011·Application pending·0 cites
- 4250US7113434B2Semiconductor integrated circuit having programmable delays for generating timing signals with time difference being non-integral multiple of clock cycleHITACHI ULSI SYS CO LTD·Filed 2004·Granted Sep 26, 2006·5 cites·5 claims
- 4350US6927274B2Resin compositions, processes for preparing the resin compositions and processes for forming resin filmsSONY CHEMICALS CORP·Filed 2003·Granted Aug 9, 2005·4 cites·7 claims
- 4450US6865127B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2003·Granted Mar 8, 2005·5 cites·21 claims
- 4550US2010145002A1Tetracarboxylic acid or polyesterimide thereof, and process for production of the sameMITSUBISHI CHEM CORP·Filed 2006·Application pending·0 cites
- 4649US7403408B2Semiconductor memory device and semiconductor deviceHITACHI LTD·Filed 2005·Granted Jul 22, 2008·2 cites·18 claims
- 4749US2012088109A1Linear polyimide precursor, linear polyimide and heat-cured product thereof, and method for producing themHASEGAWA MASATOSHI·Filed 2009·Application pending·0 cites
- 4848US2025105208A1Module and method for manufacturing sameULTRAMEMORY INC·Filed 2021·Application pending·0 cites
- 4948US2015011726A1Diamine, polyimide, and polyimide film and utilization thereofKANEKA CORP·Filed 2013·Application pending·0 cites
- 5048US2024164119A1Module and method for manufacturing sameULTRAMEMORY INC·Filed 2021·Application pending·0 cites
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →