Inventor · disambiguated record
Shunsaku Muraoka
Also filed as: MURAOKA SHUNSAKU
65 granted patents·5 pending applications·774 citations·filing 1991–2025
99Inventor score
Files withPANASONIC CORP22PANASONIC IP MAN CO LTD8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6MURAOKA SHUNSAKU6KAWAI KEN4
Top patents by PatentIndex Score
70 records- 0198US8018760B2Resistance variable element and resistance variable memory apparatusPANASONIC CORP·Filed 2007·Granted Sep 13, 2011·102 cites·14 claims
- 0297US8022502B2Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory elementPANASONIC CORP·Filed 2008·Granted Sep 20, 2011·60 cites·23 claims
- 0396US7577022B2Electric element, memory device, and semiconductor integrated circuit formed using a state-variable material whose resistance value varies according to an applied pulse voltagePANASONIC CORP·Filed 2005·Granted Aug 18, 2009·56 cites·46 claims
- 0495US8395925B2Forming method for variable resistance nonvolatile memory element, and variable resistance nonvolatile memory deviceKAWAI KEN·Filed 2010·Granted Mar 12, 2013·27 cites·18 claims
- 0595US8305795B2Nonvolatile variable resistance memory element writing method, and nonvolatile variable resistance memory deviceAZUMA RYOTARO·Filed 2010·Granted Nov 6, 2012·21 cites·25 claims
- 0695US8279657B2Nonvolatile memory element and nonvolatile memory deviceTAKAGI TAKESHI·Filed 2009·Granted Oct 2, 2012·36 cites·12 claims
- 0793US7525832B2Memory device and semiconductor integrated circuitPANASONIC CORP·Filed 2006·Granted Apr 28, 2009·34 cites·30 claims
- 0892US8902629B2Forming method of performing forming on variable resistance nonvolatile memory element, and variable resistance nonvolatile memory deviceKAWAI KEN·Filed 2011·Granted Dec 2, 2014·18 cites·21 claims
- 0992US8445319B2Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory elementKANZAWA YOSHIHIKO·Filed 2011·Granted May 21, 2013·15 cites·4 claims
- 1091US8406035B2Nonvolatile memory device and method of writing data to nonvolatile memory deviceKATOH YOSHIKAZU·Filed 2010·Granted Mar 26, 2013·14 cites·18 claims
- 1191US8325508B2Writing method for variable resistance nonvolatile memory element, and variable resistance nonvolatile memory deviceKAWAI KEN·Filed 2010·Granted Dec 4, 2012·16 cites·10 claims
- 1291US8094485B2Variable resistance nonvolatile storage device with oxygen-deficient oxide layer and asymmetric substrate bias effectSHIMAKAWA KAZUHIKO·Filed 2008·Granted Jan 10, 2012·22 cites·21 claims
- 1390US10281420B2Gas-detecting apparatus including gas sensor and method of detecting hydrogen using gas sensorPANASONIC IP MAN CO LTD·Filed 2017·Granted May 7, 2019·4 cites·19 claims
- 1490US8233311B2Variable resistance nonvolatile storage device having a source line formed of parallel wiring layers connected to each other through viasSHIMAKAWA KAZUHIKO·Filed 2011·Granted Jul 31, 2012·11 cites·3 claims
- 1590US8058636B2Variable resistance nonvolatile memory apparatusOSANO KOICHI·Filed 2008·Granted Nov 15, 2011·29 cites·5 claims
- 1689US7786548B2Electric element, memory device, and semiconductor integrated circuitPANASONIC CORP·Filed 2006·Granted Aug 31, 2010·13 cites·17 claims
- 1788US7965539B2Nonvolatile memory element, nonvolatile semiconductor memory apparatus, and reading method and writing method thereforPANASONIC CORP·Filed 2008·Granted Jun 21, 2011·13 cites·15 claims
- 1888US7369431B2Method for initializing resistance-variable material, memory device containing a resistance-variable material, and method for initializing nonvolatile memory circuit including variable resistorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 6, 2008·41 cites·10 claims
- 1987US9336881B2Variable resistance nonvolatile memory device including a variable resistance layer that changes reversibly between a low resistance state and a high resistance state according to an applied electrical signalPANASONIC IP MAN CO LTD·Filed 2015·Granted May 10, 2016·9 cites·20 claims
- 2087US8125818B2Method of programming variable resistance element and variable resistance memory device using the sameMURAOKA SHUNSAKU·Filed 2009·Granted Feb 28, 2012·12 cites·11 claims
- 2186US8125817B2Nonvolatile storage device and method for writing into the sameTAKAGI TAKESHI·Filed 2009·Granted Feb 28, 2012·18 cites·13 claims
- 2286US7463506B2Memory device, memory circuit and semiconductor integrated circuit having variable resistancePANASONIC CORP·Filed 2004·Granted Dec 9, 2008·31 cites·17 claims
- 2385US8867259B2Method of programming variable resistance nonvolatile memory elementKAWAI KEN·Filed 2012·Granted Oct 21, 2014·10 cites·14 claims
- 2485US8441837B2Variable resistance nonvolatile memory deviceIKEDA YUUICHIROU·Filed 2010·Granted May 14, 2013·12 cites·38 claims
- 2583US11788999B2Sensor device and gas monitoring systemPANASONIC IP MAN CO LTD·Filed 2019·Granted Oct 17, 2023·4 cites·41 claims
- 2683US8279658B2Method of programming variable resistance element and nonvolatile storage deviceMURAOKA SHUNSAKU·Filed 2010·Granted Oct 2, 2012·8 cites·9 claims
- 2781US8531869B2Nonvolatile memory device and method of writing data to nonvolatile memory devicePANASONIC CORP·Filed 2013·Granted Sep 10, 2013·6 cites·11 claims
- 2881US8309946B2Resistance variable elementMITANI SATORU·Filed 2009·Granted Nov 13, 2012·7 cites·7 claims
- 2980US8395930B2Method of programming variable resistance element and nonvolatile storage deviceMURAOKA SHUNSAKU·Filed 2012·Granted Mar 12, 2013·6 cites·9 claims
- 3079US8472238B2Variable resistance nonvolatile storage device with oxygen-deficient oxide layer and asymmetric substrate bias effectSHIMAKAWA KAZUHIKO·Filed 2012·Granted Jun 25, 2013·5 cites·19 claims
- 3178US8345465B2Driving method of variable resistance element, initialization method of variable resistance element, and nonvolatile storage devicePANASONIC CORP·Filed 2009·Granted Jan 1, 2013·10 cites·14 claims
- 3278US7826247B2Method for initializing resistance-variable material, memory device containing a resistance-variable material, and method for initializing nonvolatile memory circuit including variable resistorPANASONIC CORP·Filed 2008·Granted Nov 2, 2010·9 cites·9 claims
- 3377US10309916B2Gas-detecting apparatus including gas sensor and method of detecting hydrogen using gas sensorPANASONIC IP MAN CO LTD·Filed 2017·Granted Jun 4, 2019·1 cites·20 claims
- 3477US8553444B2Variable resistance nonvolatile storage device and method of forming memory cellMURAOKA SHUNSAKU·Filed 2009·Granted Oct 8, 2013·9 cites·26 claims
- 3577US8338816B2Nonvolatile memory element, and nonvolatile semiconductor device using the nonvolatile memory elementKANZAWA YOSHIHIKO·Filed 2008·Granted Dec 25, 2012·5 cites·33 claims
- 3677US8179714B2Nonvolatile storage device and method for writing into memory cell of the sameTAKAGI TAKESHI·Filed 2009·Granted May 15, 2012·10 cites·15 claims
- 3776US8217489B2Nonvolatile memory element having a tantalum oxide variable resistance layerOSANO KOICHI·Filed 2011·Granted Jul 10, 2012·6 cites·5 claims
- 3875US8675387B2Variable resistance nonvolatile memory device and programming method for sameIKEDA YUICHIRO·Filed 2010·Granted Mar 18, 2014·6 cites·19 claims
- 3973US8565005B2Nonvolatile memory element and nonvolatile memory deviceTAKAGI TAKESHI·Filed 2012·Granted Oct 22, 2013·4 cites·20 claims
- 4071US9111610B2Method of driving nonvolatile memory element and nonvolatile memory devicePANASONIC CORP·Filed 2013·Granted Aug 18, 2015·4 cites·21 claims
- 4171US7948789B2Resistance variable element, nonvolatile switching element, and resistance variable memory apparatusPANASONIC CORP·Filed 2008·Granted May 24, 2011·7 cites·10 claims
- 4270US9183926B2Method for driving nonvolatile storage element, and nonvolatile storage devicePANASONIC CORP·Filed 2013·Granted Nov 10, 2015·4 cites·26 claims
- 4370US8492875B2Nonvolatile memory element having a tantalum oxide variable resistance layerOSANO KOICHI·Filed 2012·Granted Jul 23, 2013·3 cites·10 claims
- 4467US7787280B2Electric element, memory device, and semiconductor integrated circuitPANASONIC CORP·Filed 2006·Granted Aug 31, 2010·6 cites·10 claims
- 4567US2025336440A1Variable resistance nonvolatile storage device and method for driving variable resistance nonvolatile storage elementNUVOTON TECHNOLOGY CORP JAPAN·Filed 2025·Application pending·0 cites
- 4663US10900926B2Gas sensor, gas detection apparatus, fuel cell powered vehicle, and manufacturing method of gas sensorPANASONIC IP MAN CO LTD·Filed 2019·Granted Jan 26, 2021·0 cites·19 claims
- 4762US9236381B2Nonvolatile memory element, nonvolatile memory apparatus, nonvolatile semiconductor apparatus, and method of manufacturing nonvolatile memory elementFUJII SATORU·Filed 2007·Granted Jan 12, 2016·2 cites·25 claims
- 4861US9829521B2Estimation method, estimation device, and inspection device for variable resistance element, and nonvolatile memory devicePANASONIC CORP·Filed 2014·Granted Nov 28, 2017·2 cites·24 claims
- 4960US8018761B2Resistance variable element, resistance variable memory apparatus, and resistance variable apparatusPANASONIC CORP·Filed 2007·Granted Sep 13, 2011·4 cites·13 claims
- 5057US2025182837A1Artificial intelligence processing device and weight coefficient writing method for artificial intelligence processing deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2025·Application pending·0 cites
Showing the top 50 of 70 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →