Inventor · disambiguated record
Ryotaro Azuma
Also filed as: AZUMA RYOTARO
33 granted patents·1 pending application·514 citations·filing 2003–2016
97Inventor score
Top patents by PatentIndex Score
34 records- 0198US7990754B2Resistance variable memory apparatusPANASONIC CORP·Filed 2008·Granted Aug 2, 2011·77 cites·19 claims
- 0297US8154909B2Resistance variable memory apparatusAZUMA RYOTARO·Filed 2011·Granted Apr 10, 2012·42 cites·4 claims
- 0397US7920408B2Resistance change nonvolatile memory devicePANASONIC CORP·Filed 2008·Granted Apr 5, 2011·66 cites·15 claims
- 0495US8953363B2Nonvolatile semiconductor memory device and read method for the sameSHIMAKAWA KAZUHIKO·Filed 2012·Granted Feb 10, 2015·28 cites·13 claims
- 0595US8885387B2Cross point variable resistance nonvolatile memory devicePANASONIC CORP·Filed 2012·Granted Nov 11, 2014·16 cites·18 claims
- 0695US8395925B2Forming method for variable resistance nonvolatile memory element, and variable resistance nonvolatile memory deviceKAWAI KEN·Filed 2010·Granted Mar 12, 2013·27 cites·18 claims
- 0795US8305795B2Nonvolatile variable resistance memory element writing method, and nonvolatile variable resistance memory deviceAZUMA RYOTARO·Filed 2010·Granted Nov 6, 2012·21 cites·25 claims
- 0894US8848424B2Variable resistance nonvolatile memory device, and accessing method for variable resistance nonvolatile memory devicePANASONIC CORP·Filed 2012·Granted Sep 30, 2014·24 cites·10 claims
- 0991US8848426B2Cross-point variable resistance nonvolatile memory device and reading method for cross-point variable resistance nonvolatile memory devicePANASONIC CORP·Filed 2013·Granted Sep 30, 2014·15 cites·17 claims
- 1091US8441839B2Cross point variable resistance nonvolatile memory deviceAZUMA RYOTARO·Filed 2011·Granted May 14, 2013·16 cites·29 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
- 1290US8467229B2Variable resistance nonvolatile memory deviceIKEDA YUICHIRO·Filed 2011·Granted Jun 18, 2013·16 cites·11 claims
- 1388US8198618B2Nonvolatile memory device and manufacturing method thereofMIKAWA TAKUMI·Filed 2008·Granted Jun 12, 2012·14 cites·10 claims
- 1488US7567118B2Booster circuitPANASONIC CORP·Filed 2005·Granted Jul 28, 2009·26 cites·7 claims
- 1587US9336881B2Variable 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
- 1686US8384061B2Nonvolatile memory device and manufacturing methodPANASONIC CORP·Filed 2008·Granted Feb 26, 2013·11 cites·10 claims
- 1786US8125817B2Nonvolatile storage device and method for writing into the sameTAKAGI TAKESHI·Filed 2009·Granted Feb 28, 2012·18 cites·13 claims
- 1885US8441837B2Variable resistance nonvolatile memory deviceIKEDA YUUICHIROU·Filed 2010·Granted May 14, 2013·12 cites·38 claims
- 1984US9053788B2Cross-point variable resistance nonvolatile memory devicePANASONIC IP MAN CO LTD·Filed 2013·Granted Jun 9, 2015·9 cites·19 claims
- 2084US8982603B2Cross point variable resistance nonvolatile memory device and method of reading therebyAZUMA RYOTARO·Filed 2012·Granted Mar 17, 2015·9 cites·16 claims
- 2181US9484090B2Read and write methods for a resistance change non-volatile memory devicePANASONIC IP MAN CO LTD·Filed 2015·Granted Nov 1, 2016·4 cites·5 claims
- 2279US8923032B2Crosspoint nonvolatile memory device and forming method thereofPANASONIC CORP·Filed 2012·Granted Dec 30, 2014·7 cites·11 claims
- 2374US9053787B2Crosspoint nonvolatile memory device and method of driving the samePANASONIC IP MAN CO LTD·Filed 2013·Granted Jun 9, 2015·5 cites·14 claims
- 2473US8467228B2Variable resistance nonvolatile memory deviceIKEDA YUICHIRO·Filed 2011·Granted Jun 18, 2013·4 cites·5 claims
- 2572US8320159B2Resistance variable nonvolatile memory deviceWEI ZHIQIANG·Filed 2010·Granted Nov 27, 2012·5 cites·9 claims
- 2668US8942050B2Method of inspecting variable resistance nonvolatile memory device and variable resistance nonvolatile memory deviceTOMOTANI HIROSHI·Filed 2011·Granted Jan 27, 2015·4 cites·17 claims
- 2766US9543007B2Semiconductor device including memory cell and sense amplifer, and IC card including semiconductor devicePANASONIC IP MAN CO LTD·Filed 2016·Granted Jan 10, 2017·2 cites·18 claims
- 2860US9183925B2Variable resistance nonvolatile memory device and method of performing the forming operationPANASONIC CORP·Filed 2013·Granted Nov 10, 2015·2 cites·13 claims
- 2960US8902635B2Variable resistance nonvolatile memory device and method of writing therebyPANASONIC CORP·Filed 2012·Granted Dec 2, 2014·3 cites·16 claims
- 3059US9087581B2Cross point variable resistance nonvolatile memory device and method of writing therebyAZUMA RYOTARO·Filed 2012·Granted Jul 21, 2015·2 cites·36 claims
- 3156US8665633B2Nonvolatile variable resistance memory element writing method, and nonvolatile variable resistance memory deviceAZUMA RYOTARO·Filed 2012·Granted Mar 4, 2014·1 cites·4 claims
- 3251US8687409B2Variable resistance nonvolatile memory deviceIKEDA YUICHIRO·Filed 2012·Granted Apr 1, 2014·1 cites·13 claims
- 3339US6826087B2Semiconductor memory storageMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 30, 2004·2 cites·19 claims
- 3430US2007133277A1Non-volatile semiconductor memory deviceKAWAI KEN·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →