Inventor · disambiguated record
Koichi Mizushima
Also filed as: MIZUSHIMA KOICHI
66 granted patents·16 pending applications·979 citations·filing 1981–2025
99Inventor score
Top patents by PatentIndex Score
82 records- 0199US7471491B2Magnetic sensor having a frequency filter coupled to an output of a magnetoresistance elementTOSHIBA KK·Filed 2005·Granted Dec 30, 2008·76 cites·10 claims
- 0296US8194361B2Spin-torque oscillator, magnetic head including the spin-torque oscillator, and magnetic recording and reproducing apparatusKUDO KIWAMU·Filed 2008·Granted Jun 5, 2012·51 cites·7 claims
- 0395US9159342B2Magnetic recording apparatusTOSHIBA KK·Filed 2014·Granted Oct 13, 2015·31 cites·12 claims
- 0495US5747859AMagnetic device and magnetic sensor using the sameTOSHIBA KK·Filed 1996·Granted May 5, 1998·101 cites·6 claims
- 0595US4871236AOrganic thin film display elementTOSHIBA KK·Filed 1986·Granted Oct 3, 1989·110 cites·19 claims
- 0694US8982514B2Magnetic oscillatorNAGASAWA TAZUMI·Filed 2013·Granted Mar 17, 2015·13 cites·16 claims
- 0793US7817375B2Magnetic recording head having spin wave oscillator which locally heats a recording trackTOSHIBA KK·Filed 2008·Granted Oct 19, 2010·18 cites·11 claims
- 0893US5973334AMagnetic device and magnetic sensor using the sameTOSHIBA KK·Filed 1998·Granted Oct 26, 1999·79 cites·8 claims
- 0992US8755153B2Reproducing head with spin-torque oscillator, and magnetic recording and reproducing apparatusKUDO KIWAMU·Filed 2012·Granted Jun 17, 2014·22 cites·7 claims
- 1091US8174798B2Spin-torque oscillator, a magnetic sensor and a magnetic recording systemNAGASAWA TAZUMI·Filed 2009·Granted May 8, 2012·21 cites·5 claims
- 1191US4357215AFast ion conductorsGOODENOUGH JOHN B·Filed 1981·Granted Nov 2, 1982·53 cites·3 claims
- 1290US8896973B2Magnetic head with a spin torque oscillator, magnetic sensor, and magnetic recording/reproducing apparatusNAGASAWA TAZUMI·Filed 2012·Granted Nov 25, 2014·14 cites·18 claims
- 1389US7965474B2Magnetic oscillation elementTOSHIBA KK·Filed 2007·Granted Jun 21, 2011·17 cites·20 claims
- 1489US7826160B2Signal reproducing method, magnetic head and magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2008·Granted Nov 2, 2010·7 cites·14 claims
- 1589US7813087B2Magnetic memory device having spin wave oscillator arranged to heat magnetic tunnel junction elementTOSHIBA KK·Filed 2008·Granted Oct 12, 2010·12 cites·4 claims
- 1687US12073311B2Synaptic circuit and neural network apparatusTOSHIBA KK·Filed 2020·Granted Aug 27, 2024·2 cites·15 claims
- 1787US7940485B2Magnetic recording and reproducing apparatus having a magnetic read head with a spin-torque oscillatorTOSHIBA KK·Filed 2009·Granted May 10, 2011·8 cites·7 claims
- 1886US7580227B2Magnetic element, magnetic information reproducing head, and magnetic information reproducing apparatusTOSHIBA KK·Filed 2004·Granted Aug 25, 2009·20 cites·15 claims
- 1986US6501143B2Spin-valve transistorTOSHIBA KK·Filed 2001·Granted Dec 31, 2002·34 cites·8 claims
- 2085US7760472B2Magnetic sensor and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Jul 20, 2010·11 cites·6 claims
- 2179US11526738B2Processing apparatus and inference systemTOSHIBA KK·Filed 2020·Granted Dec 13, 2022·1 cites·20 claims
- 2278US8553372B2Magnetic oscillatorNAGASAWA TAZUMI·Filed 2012·Granted Oct 8, 2013·3 cites·16 claims
- 2378US7982986B2Signal reproducing method, magnetic head and magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2010·Granted Jul 19, 2011·3 cites·14 claims
- 2478US6144546ACapacitor having electrodes with two-dimensional conductivityTOSHIBA KK·Filed 1997·Granted Nov 7, 2000·39 cites·22 claims
- 2577US8630070B2Magnetic headSATO RIE·Filed 2011·Granted Jan 14, 2014·4 cites·6 claims
- 2677US8207806B2Magnetic oscillation elementKUDO KIWAMU·Filed 2011·Granted Jun 26, 2012·4 cites·5 claims
- 2777US5294820AField-effect transistorTOSHIBA KK·Filed 1992·Granted Mar 15, 1994·37 cites·13 claims
- 2876US8553358B2Magnetic headMIZUSHIMA KOICHI·Filed 2012·Granted Oct 8, 2013·5 cites·5 claims
- 2976US4819210AOptical information writing methodTOSHIBA KK·Filed 1988·Granted Apr 4, 1989·22 cites·31 claims
- 3075US11893476B2Processing apparatus and inference systemTOSHIBA KK·Filed 2022·Granted Feb 6, 2024·0 cites·15 claims
- 3173US10127931B2Perpendicular magnetic recording and reproducing deviceTOSHIBA KK·Filed 2016·Granted Nov 13, 2018·3 cites·20 claims
- 3273US9001466B2Three-dimensional magnetic recording and reproducing apparatus including a plurality of magnetic layers having different resonant frequenciesSATO RIE·Filed 2012·Granted Apr 7, 2015·3 cites·12 claims
- 3371US9704552B2Multi-level magnetic recording apparatus utilizing cooperative magnetization dynamics induced by spin-torque oscillatorKABUSHIK KAISHA TOSHIBA·Filed 2015·Granted Jul 11, 2017·3 cites·11 claims
- 3471US8861120B2Magnetic medium and writing and reading methodYANG TAO·Filed 2012·Granted Oct 14, 2014·2 cites·9 claims
- 3571US4819057ASemiconductor light-emitting elementTOSHIBA KK·Filed 1986·Granted Apr 4, 1989·25 cites·29 claims
- 3670US8947170B2Spin-torque oscillatorYANG TAO·Filed 2012·Granted Feb 3, 2015·2 cites·6 claims
- 3770US5895938ASemiconductor device using semiconductor BCN compoundsTOSHIBA KK·Filed 1997·Granted Apr 20, 1999·34 cites·16 claims
- 3869US8724261B2High-frequency magnetic field generation element and magnetic headSUTO HIROFUMI·Filed 2012·Granted May 13, 2014·3 cites·20 claims
- 3969US7961439B2High-frequency oscillation element, magnetic information recording head, and magnetic storage deviceTOSHIBA KK·Filed 2004·Granted Jun 14, 2011·7 cites·20 claims
- 4069US5371365AScanning probe microscopyTOSHIBA KK·Filed 1993·Granted Dec 6, 1994·29 cites·5 claims
- 4168US10210894B1Magnetic recording medium including multiple magnetic layers with multiple regions having aligned easy magnetization axes and magnetic recording and reproducing deviceTOSHIBA KK·Filed 2018·Granted Feb 19, 2019·2 cites·14 claims
- 4267US9070389B2Magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2014·Granted Jun 30, 2015·1 cites·13 claims
- 4364US7265394B2Spin tunnel transistorTOSHIBA KK·Filed 2006·Granted Sep 4, 2007·2 cites·6 claims
- 4463US6861718B2Spin valve transistor, magnetic reproducing head and magnetic information storage systemTOSHIBA KK·Filed 2003·Granted Mar 1, 2005·10 cites·20 claims
- 4563US6833598B2Spin valve transistorTOSHIBA KK·Filed 2002·Granted Dec 21, 2004·10 cites·18 claims
- 4663US2024296325A1Neural network device and synaptic weight update methodTOSHIBA KK·Filed 2023·Application pending·0 cites
- 4763US2024320468A1Anomaly detection device, anomaly detection method, and computer program productTOSHIBA KK·Filed 2023·Application pending·0 cites
- 4862US2024143989A1Reservoir calculation device and adjustment methodTOSHIBA KK·Filed 2023·Application pending·0 cites
- 4961US12333421B2Synaptic circuit and neural networking apparatusTOSHIBA KK·Filed 2021·Granted Jun 17, 2025·0 cites·11 claims
- 5061US11169732B2Computing deviceTOSHIBA KK·Filed 2018·Granted Nov 9, 2021·1 cites·12 claims
Showing the top 50 of 82 patent records by PatentIndex Score.
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