Inventor · disambiguated record
Masahiko Nakayama
Also filed as: KOIDE HIROSHI · NAKAYAMA MASAHIKO
101 granted patents·16 pending applications·1,171 citations·filing 1987–2025
99Inventor score
Top patents by PatentIndex Score
117 records- 0198US8036025B2Magnetoresistive elementTOSHIBA KK·Filed 2010·Granted Oct 11, 2011·33 cites·36 claims
- 0298US7663197B2Magnetoresistive elementTOSHIBA KK·Filed 2006·Granted Feb 16, 2010·97 cites·21 claims
- 0397US8009465B2Magnetoresistive elementTOSHIBA KK·Filed 2009·Granted Aug 30, 2011·55 cites·17 claims
- 0496US8363462B2Magnetoresistive elementTOSHIBA KK·Filed 2011·Granted Jan 29, 2013·21 cites·23 claims
- 0596US8279663B2Magnetoresistance effect element and magnetic random access memoryNAKAYAMA MASAHIKO·Filed 2011·Granted Oct 2, 2012·33 cites·12 claims
- 0695US9705076B2Magnetoresistive element and manufacturing method of the sameNAGAMINE MAKOTO·Filed 2014·Granted Jul 11, 2017·14 cites·17 claims
- 0795US9385304B2Magnetic memory and method of manufacturing the sameNAKAYAMA MASAHIKO·Filed 2014·Granted Jul 5, 2016·15 cites·9 claims
- 0895US8014193B2Magnetoresistance effect element and magnetic random access memoryTOSHIBA KK·Filed 2009·Granted Sep 6, 2011·41 cites·12 claims
- 0994US9184374B2Magnetoresistive elementSAWADA KAZUYA·Filed 2013·Granted Nov 10, 2015·15 cites·18 claims
- 1094US7355884B2Magnetoresistive elementTOSHIBA KK·Filed 2005·Granted Apr 8, 2008·28 cites·18 claims
- 1194US5638354AOptical information recording mediumRICOH KK·Filed 1994·Granted Jun 10, 1997·50 cites·9 claims
- 1293US9269890B2Magnetoresistance effect element with shift canceling layer having pattern area greater than that of storage layerNAKAYAMA MASAHIKO·Filed 2013·Granted Feb 23, 2016·11 cites·5 claims
- 1393US8107281B2Magnetoresistive element and magnetic memoryKAI TADASHI·Filed 2010·Granted Jan 31, 2012·23 cites·12 claims
- 1493US8098514B2Magnetoresistive element and magnetic memoryNAGASE TOSHIHIKO·Filed 2008·Granted Jan 17, 2012·49 cites·24 claims
- 1592US9166151B2Magnetoresistive element and manufacturing method of the sameTOSHIBA KK·Filed 2013·Granted Oct 20, 2015·10 cites·8 claims
- 1691US10985209B2Nonvolatile storage deviceTOSHIBA MEMORY CORP·Filed 2019·Granted Apr 20, 2021·3 cites·10 claims
- 1791US9893121B2Magnetic memory and method of manufacturing magnetic memoryTOSHIBA MEMORY CORP·Filed 2016·Granted Feb 13, 2018·8 cites·18 claims
- 1891US6320913B1Circuit and method for controlling transmission amplifiersNEC CORP·Filed 1998·Granted Nov 20, 2001·83 cites·12 claims
- 1990US4815059ATemperature-compensated optical pick-up deviceRICOH KK·Filed 1987·Granted Mar 21, 1989·44 cites·17 claims
- 2089US8531875B2Magnetic memoryYANAGI SATOSHI·Filed 2012·Granted Sep 10, 2013·9 cites·9 claims
- 2189US8208292B2Magnetoresistive element and magnetic memoryKAI TADASHI·Filed 2012·Granted Jun 26, 2012·13 cites·15 claims
- 2288US7518907B2Magnetoresistive elementTOSHIBA KK·Filed 2008·Granted Apr 14, 2009·15 cites·15 claims
- 2387US8223533B2Magnetoresistive effect device and magnetic memoryOZEKI JYUNICHI·Filed 2009·Granted Jul 17, 2012·24 cites·11 claims
- 2487US8139403B2Spin memory and spin transistorINOKUCHI TOMOAKI·Filed 2010·Granted Mar 20, 2012·10 cites·13 claims
- 2587US6584060B1Optical pick-up device for recording/reading information on optical recording mediumRICOH KK·Filed 1999·Granted Jun 24, 2003·46 cites·14 claims
- 2687US6018510APhase change recording medium for allowing a tracking servo control based on a differential phase detection tracking methodRICOH KK·Filed 1998·Granted Jan 25, 2000·47 cites·17 claims
- 2786US9466350B2Magnetic memory deviceTOSHIBA KK·Filed 2015·Granted Oct 11, 2016·8 cites·18 claims
- 2886US8553450B2Magnetic random access memory and write method of the sameHOSOTANI KEIJI·Filed 2009·Granted Oct 8, 2013·18 cites·20 claims
- 2985US10910032B2Magnetoresistive memory device with different write pulse patternsTOSHIBA MEMORY CORP·Filed 2019·Granted Feb 2, 2021·5 cites·10 claims
- 3085US8665639B2Magnetoresistive element and magnetic memoryNAGASE TOSHIHIKO·Filed 2012·Granted Mar 4, 2014·7 cites·20 claims
- 3184US7894246B2Magnetoresistive element and magnetic memoryTOSHIBA KK·Filed 2008·Granted Feb 22, 2011·7 cites·22 claims
- 3284US7245524B2Magnetic memory device and write method of magnetic memory deviceTOSHIBA KK·Filed 2005·Granted Jul 17, 2007·16 cites·23 claims
- 3383US12133394B2Magnetic memory deviceKIOXIA CORP·Filed 2023·Granted Oct 29, 2024·0 cites·10 claims
- 3482US8884389B2Magnetoresistive element and method of manufacturing the sameTOKO MASARU·Filed 2012·Granted Nov 11, 2014·6 cites·15 claims
- 3581US8878321B2Magnetoresistive element and producing method thereofAIKAWA HISANORI·Filed 2012·Granted Nov 4, 2014·4 cites·15 claims
- 3681US7359295B2Optical pickup apparatus and optical disk drive apparatusRICOH KK·Filed 2004·Granted Apr 15, 2008·12 cites·7 claims
- 3781US5812520AOptical disk unit, control method thereof, optical information recording medium and recording-regenerating method using this optical information recording mediumRICOH KK·Filed 1997·Granted Sep 22, 1998·26 cites·3 claims
- 3880US11094743B2Magnetic memory deviceTOSHIBA MEMORY CORP·Filed 2019·Granted Aug 17, 2021·1 cites·7 claims
- 3980US10325640B2Magnetoresistive memory device with different write pulse patternsTOSHIBA MEMORY CORP·Filed 2017·Granted Jun 18, 2019·4 cites·7 claims
- 4079US8169817B2Magnetoresistive device and magnetic random access memoryNAKAYAMA MASAHIKO·Filed 2010·Granted May 1, 2012·5 cites·11 claims
- 4179US7599156B2Magnetoresistive element having specially shaped ferromagnetic layerTOSHIBA KK·Filed 2005·Granted Oct 6, 2009·11 cites·3 claims
- 4278US9123879B2Magnetoresistive element and method of manufacturing the sameNAKAYAMA MASAHIKO·Filed 2014·Granted Sep 1, 2015·3 cites·7 claims
- 4378US7770916B2Interior material and laser beam processing method for the sameHONDA MOTOR CO LTD·Filed 2006·Granted Aug 10, 2010·12 cites·5 claims
- 4478US5418765AApparatus for recording and reproducing optical information having an optical waveguideRICOH KK·Filed 1994·Granted May 23, 1995·26 cites·14 claims
- 4578US5136559AOptical information recording and reproducing apparatus using tracking mirrorRICOH KK·Filed 1990·Granted Aug 4, 1992·28 cites·7 claims
- 4677US11856791B2Nonvolatile storage deviceKIOXIA CORP·Filed 2022·Granted Dec 26, 2023·0 cites·10 claims
- 4777US5822286AOptical disk unit, control method thereof, optical information recording medium and recording-regenerating method using this optical information recording mediumRICOH KK·Filed 1997·Granted Oct 13, 1998·21 cites·7 claims
- 4876US8897060B2Magnetoresistance effect element and magnetic memoryNAKAYAMA MASAHIKO·Filed 2012·Granted Nov 25, 2014·3 cites·12 claims
- 4975US12514133B2Magnetic storage deviceKIOXIA CORP·Filed 2023·Granted Dec 30, 2025·0 cites·5 claims
- 5074US11758739B2Magnetic memory deviceKIOXIA CORP·Filed 2021·Granted Sep 12, 2023·0 cites·5 claims
Showing the top 50 of 117 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →