Inventor · disambiguated record
Eiji Kitagawa
Also filed as: KITAGAWA EIJI
105 granted patents·31 pending applications·1,389 citations·filing 1990–2025
99Inventor score
Top patents by PatentIndex Score
136 records- 0198US8036025B2Magnetoresistive elementTOSHIBA KK·Filed 2010·Granted Oct 11, 2011·33 cites·36 claims
- 0298US7768824B2Magnetoresistive element and magnetoresistive random access memory including the sameTOSHIBA KK·Filed 2008·Granted Aug 3, 2010·58 cites·18 claims
- 0398US7663197B2Magnetoresistive elementTOSHIBA KK·Filed 2006·Granted Feb 16, 2010·97 cites·21 claims
- 0498US7596015B2Magnetoresistive element and magnetic memoryTOSHIBA KK·Filed 2007·Granted Sep 29, 2009·94 cites·23 claims
- 0597US11329215B2Magnetic memory deviceKIOXIA CORP·Filed 2020·Granted May 10, 2022·4 cites·20 claims
- 0697US10840434B2Storage deviceTOSHIBA MEMORY CORP·Filed 2019·Granted Nov 17, 2020·13 cites·16 claims
- 0797US10026888B2Magnetoresistive effect element and magnetic memoryTOSHIBA MEMORY CORP·Filed 2015·Granted Jul 17, 2018·19 cites·12 claims
- 0897US9117924B2Magnetic memory element and method of manufacturing the sameKITAGAWA EIJI·Filed 2012·Granted Aug 25, 2015·42 cites·11 claims
- 0997US9117995B2Magnetoresistance element and magnetic memoryTOSHIBA KK·Filed 2013·Granted Aug 25, 2015·39 cites·18 claims
- 1096US11127445B2Magnetic deviceTOSHIBA MEMORY CORP·Filed 2019·Granted Sep 21, 2021·11 cites·15 claims
- 1196US8363462B2Magnetoresistive elementTOSHIBA KK·Filed 2011·Granted Jan 29, 2013·21 cites·23 claims
- 1296US7924607B2Magnetoresistance effect element and magnetoresistive random access memory using the sameTOSHIBA KK·Filed 2008·Granted Apr 12, 2011·38 cites·23 claims
- 1395US11404098B2Memory deviceKIOXIA CORP·Filed 2020·Granted Aug 2, 2022·3 cites·20 claims
- 1495US9608199B1Magnetic memory deviceTOSHIBA KK·Filed 2016·Granted Mar 28, 2017·12 cites·19 claims
- 1595US9508926B2Magnetoresistive effect element having an underlayer and a side wall layer that contain scandiumTOSHIBA KK·Filed 2015·Granted Nov 29, 2016·15 cites·20 claims
- 1695US8680633B1Magnetoresistive element and magnetic memoryTOSHIBA KK·Filed 2013·Granted Mar 25, 2014·24 cites·18 claims
- 1795US8265861B2Driving assist system and vehicle-mounted apparatusIKEDA TAKURO·Filed 2008·Granted Sep 11, 2012·192 cites·16 claims
- 1895US7957184B2Magnetoresistive element and magnetoresistive random access memory including the sameTOSHIBA KK·Filed 2010·Granted Jun 7, 2011·17 cites·33 claims
- 1994US11316095B2Magnetic device which improves write error rate while maintaining retention propertiesKIOXIA CORP·Filed 2020·Granted Apr 26, 2022·3 cites·20 claims
- 2094US8994131B2Magnetic memoryTOSHIBA KK·Filed 2013·Granted Mar 31, 2015·21 cites·19 claims
- 2194US8305801B2Magnetoresistive element and magnetic memoryDAIBOU TADAOMI·Filed 2011·Granted Nov 6, 2012·17 cites·18 claims
- 2294US8299552B2Magnetoresistive element and magnetic memoryNAGASE TOSHIHIKO·Filed 2008·Granted Oct 30, 2012·33 cites·18 claims
- 2393US10211256B2Magnetic memory device with stack structure including first and second magnetic layers and nonmagnetic layer between the first and second magnetic layersTOSHIBA MEMORY CORP·Filed 2016·Granted Feb 19, 2019·9 cites·20 claims
- 2493US9647203B2Magnetoresistive element having a magnetic layer including OTOSHIBA KK·Filed 2014·Granted May 9, 2017·16 cites·19 claims
- 2593US9178133B2Magnetoresistive element using specific underlayer materialTOSHIBA KK·Filed 2014·Granted Nov 3, 2015·9 cites·20 claims
- 2693US8750029B2Magnetoresistive effect element and magnetic memoryKITAGAWA EIJI·Filed 2011·Granted Jun 10, 2014·14 cites·20 claims
- 2793US8520433B1Magnetoresistive element and magnetic memoryKATO YUSHI·Filed 2012·Granted Aug 27, 2013·40 cites·20 claims
- 2893US8139405B2Magnetoresistive element and magnetoresistive random access memory including the sameYOSHIKAWA MASATOSHI·Filed 2011·Granted Mar 20, 2012·13 cites·15 claims
- 2993US8107281B2Magnetoresistive element and magnetic memoryKAI TADASHI·Filed 2010·Granted Jan 31, 2012·23 cites·12 claims
- 3092US11335422B2Semiconductor memory device and memory systemKIOXIA CORP·Filed 2020·Granted May 17, 2022·3 cites·20 claims
- 3192US8218355B2Magnetoresistive element and magnetic memoryKITAGAWA EIJI·Filed 2009·Granted Jul 10, 2012·23 cites·25 claims
- 3292US7920361B2Magnetoresistive effect element with intermediate oxide layer containing boron and an element selected from Ca, Mg, Sr, Ba, Ti, and ScTOSHIBA KK·Filed 2007·Granted Apr 5, 2011·23 cites·26 claims
- 3391US8670268B2Magnetoresistive element and magnetic memory using the sameNAGASE TOSHIHIKO·Filed 2012·Granted Mar 11, 2014·9 cites·18 claims
- 3491US8154915B2Magnetoresistive element and magnetoresistive random access memory including the sameYOSHIKAWA MASATOSHI·Filed 2011·Granted Apr 10, 2012·11 cites·54 claims
- 3589US8937832B2Magnetic memoryTOSHIBA KK·Filed 2012·Granted Jan 20, 2015·12 cites·18 claims
- 3689US8531875B2Magnetic memoryYANAGI SATOSHI·Filed 2012·Granted Sep 10, 2013·9 cites·9 claims
- 3789US8208292B2Magnetoresistive element and magnetic memoryKAI TADASHI·Filed 2012·Granted Jun 26, 2012·13 cites·15 claims
- 3889US5186987ALining material for pipe lines and a process for providing pipe lines therewithASHIMORI IND CO LTD·Filed 1990·Granted Feb 16, 1993·102 cites·5 claims
- 3988US11217288B2Magnetic device and memory deviceTOSHIBA MEMORY CORP·Filed 2019·Granted Jan 4, 2022·3 cites·18 claims
- 4088US8895162B2Magnetoresistive element and magnetic memoryNISHIYAMA KATSUYA·Filed 2011·Granted Nov 25, 2014·13 cites·7 claims
- 4187US8223533B2Magnetoresistive effect device and magnetic memoryOZEKI JYUNICHI·Filed 2009·Granted Jul 17, 2012·24 cites·11 claims
- 4287US7787288B2Magnetic memory element, magnetic memory having said magnetic memory element, and method for driving magnetic memoryTOSHIBA KK·Filed 2007·Granted Aug 31, 2010·13 cites·5 claims
- 4386US9466350B2Magnetic memory deviceTOSHIBA KK·Filed 2015·Granted Oct 11, 2016·8 cites·18 claims
- 4485US8686521B2Magnetoresistive element and magnetic memoryDAIBOU TADAOMI·Filed 2010·Granted Apr 1, 2014·7 cites·18 claims
- 4585US8665639B2Magnetoresistive element and magnetic memoryNAGASE TOSHIHIKO·Filed 2012·Granted Mar 4, 2014·7 cites·20 claims
- 4684US11563168B2Magnetic memory device that suppresses diffusion of elementsKIOXIA CORP·Filed 2020·Granted Jan 24, 2023·1 cites·16 claims
- 4784US8953369B2Magnetoresistive element and magnetic memory using the sameTOSHIBA KK·Filed 2014·Granted Feb 10, 2015·4 cites·18 claims
- 4884US8472242B2Magnetoresistive effect memorySHIMOMURA NAOHARU·Filed 2010·Granted Jun 25, 2013·10 cites·19 claims
- 4984US7848059B2Magnetoresistive effect device and magnetic random access memory using the sameTOSHIBA KK·Filed 2007·Granted Dec 7, 2010·5 cites·15 claims
- 5083US8547737B2Magnetoresistive element and magnetic memoryDAIBOU TADAOMI·Filed 2012·Granted Oct 1, 2013·5 cites·18 claims
Showing the top 50 of 136 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →