Inventor · disambiguated record
Yoshihisa Iwata
Also filed as: IWATA YOSHIHISA
176 granted patents·15 pending applications·4,395 citations·filing 1986–2024
99Inventor score
Top patents by PatentIndex Score
191 records- 0199US6548848B2Semiconductor memory deviceTOSHIBA KK·Filed 2001·Granted Apr 15, 2003·260 cites·26 claims
- 0298US8169826B2Nonvolatile semiconductor memory deviceHISHIDA TOMOO·Filed 2010·Granted May 1, 2012·68 cites·20 claims
- 0397US8797777B2Semiconductor memory deviceHISHIDA TOMOO·Filed 2012·Granted Aug 5, 2014·25 cites·20 claims
- 0497US8203882B2Non-volatile semiconductor storage deviceHISHIDA TOMOO·Filed 2010·Granted Jun 19, 2012·44 cites·20 claims
- 0597US8189391B2Non-volatile semiconductor storage device including a control circuitITAGAKI KIYOTARO·Filed 2009·Granted May 29, 2012·81 cites·18 claims
- 0697US8107286B2Three-dimensional nonvolatile semiconductor memory device for curbing a leak current and method of data read thereinITAGAKI KIYOTARO·Filed 2010·Granted Jan 31, 2012·41 cites·20 claims
- 0797US7933151B2Non-volatile semiconductor storage deviceTOSHIBA KK·Filed 2009·Granted Apr 26, 2011·46 cites·20 claims
- 0897US6625057B2Magnetoresistive memory deviceTOSHIBA KK·Filed 2001·Granted Sep 23, 2003·173 cites·11 claims
- 0997US6058044AShielded bit line sensing scheme for nonvolatile semiconductor memoryTOSHIBA KK·Filed 1998·Granted May 2, 2000·195 cites·26 claims
- 1096US8817538B2Nonvolatile semiconductor memory device and method for erasing data thereofITAGAKI KIYOTARO·Filed 2012·Granted Aug 26, 2014·31 cites·18 claims
- 1196US8233323B2Non-volatile semiconductor storage deviceHISHIDA TOMOO·Filed 2010·Granted Jul 31, 2012·37 cites·11 claims
- 1296US6049494ASemiconductor memory deviceTOSHIBA KK·Filed 1998·Granted Apr 11, 2000·156 cites·26 claims
- 1396US5361227ANon-volatile semiconductor memory device and memory system using the sameTOSHIBA KK·Filed 1992·Granted Nov 1, 1994·103 cites·130 claims
- 1495US8295091B2Nonvolatile semiconductor memory deviceITAGAKI KIYOTARO·Filed 2010·Granted Oct 23, 2012·21 cites·19 claims
- 1595US7623384B2Nonvolatile semiconductor memoryTOSHIBA KK·Filed 2007·Granted Nov 24, 2009·36 cites·16 claims
- 1695US5293337AElectrically erasable programmable read-only memory with electric field decreasing controllerTOSHIBA KK·Filed 1991·Granted Mar 8, 1994·100 cites·13 claims
- 1794US8605508B2Non-volatile semiconductor storage device having control circuit to control voltages to select transistor for erase operationITAGAKI KIYOTARO·Filed 2012·Granted Dec 10, 2013·18 cites·16 claims
- 1894US8084809B2Nonvolatile semiconductor memory device including pillars buried inside through holesMAEDA TAKASHI·Filed 2009·Granted Dec 27, 2011·22 cites·7 claims
- 1993US8334551B2Non-volatile semiconductor storage deviceITAGAKI KIYOTARO·Filed 2009·Granted Dec 18, 2012·26 cites·15 claims
- 2093US7139201B2Non-volatile semiconductor memory device and memory system using the sameTOSHIBA KK·Filed 2005·Granted Nov 21, 2006·24 cites·74 claims
- 2193US7116598B2Semiconductor memoryTOSHIBA KK·Filed 2005·Granted Oct 3, 2006·33 cites·20 claims
- 2293US6778424B2Semiconductor memory device and method of manufacturing the sameTOSHIBA KK·Filed 2001·Granted Aug 17, 2004·80 cites·26 claims
- 2393US6724653B1Magnetic random access memoryTOSHIBA KK·Filed 2002·Granted Apr 20, 2004·71 cites·55 claims
- 2492US8339856B2Non-volatile semiconductor memory device and semiconductor deviceIWATA YOSHIHISA·Filed 2010·Granted Dec 25, 2012·19 cites·20 claims
- 2592US6839269B2Magnetic random access memoryTOKYO SHIBAURA ELECTRIC CO·Filed 2002·Granted Jan 4, 2005·67 cites·106 claims
- 2692US5278794ANAND-cell type electrically erasable and programmable read-only memory with redundancy circuitTOSHIBA KK·Filed 1992·Granted Jan 11, 1994·92 cites·15 claims
- 2791US9576968B2Semiconductor memory device with a three-dimensional stacked memory cell structureTOSHIBA KK·Filed 2015·Granted Feb 21, 2017·7 cites·53 claims
- 2891US9076675B2Semiconductor memory device with a 3-dimensional stacked memory cell structureTOSHIBA KK·Filed 2014·Granted Jul 7, 2015·8 cites·20 claims
- 2991US7239541B2Spin-injection magnetic random access memoryTOSHIBA KK·Filed 2005·Granted Jul 3, 2007·23 cites·20 claims
- 3091US6172911B1Non-volatile semiconductor memory device with an improved verify voltage generatorTOSHIBA KK·Filed 1999·Granted Jan 9, 2001·54 cites·10 claims
- 3191US5831903AElectrically erasable programmable read-only memory with threshold value controller for data programming and method of programming the sameTOSHIBA KK·Filed 1997·Granted Nov 3, 1998·76 cites·19 claims
- 3291US2025098166A1Semiconductor memory device with a three-dimensional stacked memory cell structureKIOXIA CORP·Filed 2024·Application pending·0 cites
- 3390US10068916B2Semiconductor memory device with a three-dimensional stacked memory cell structureTOSHIBA MEMORY CORP·Filed 2016·Granted Sep 4, 2018·4 cites·11 claims
- 3490US7705388B2Nonvolatile semiconductor memory device has source-line-side diode formed in a contact for connecting source line and memory cell string in direction perpendicular to substrateTOSHIBA KK·Filed 2007·Granted Apr 27, 2010·22 cites·19 claims
- 3590US7230308B2Magnetic random access memoryTOSHIBA KK·Filed 2005·Granted Jun 12, 2007·23 cites·20 claims
- 3690US6801060B2Semiconductor integrated circuitTOSHIBA KK·Filed 2003·Granted Oct 5, 2004·34 cites·4 claims
- 3790US6795334B2Magnetic random access memoryTOSHIBA KK·Filed 2002·Granted Sep 21, 2004·52 cites·103 claims
- 3890US5724300ANon-volatile semiconductor memory device and memory system using the sameTOSHIBA KK·Filed 1997·Granted Mar 3, 1998·50 cites·44 claims
- 3989US9070434B2Semiconductor deviceHIOKA TAKESHI·Filed 2012·Granted Jun 30, 2015·15 cites·20 claims
- 4089US5768195ASemiconductor memory deviceTOSHIBA KK·Filed 1997·Granted Jun 16, 1998·64 cites·32 claims
- 4189US5388084ANon-volatile semiconductor memory device with high voltage generatorTOSHIBA KK·Filed 1993·Granted Feb 7, 1995·71 cites·17 claims
- 4288US8111538B2Semiconductor memory deviceHOSOTANI KEIJI·Filed 2008·Granted Feb 7, 2012·19 cites·6 claims
- 4388US6804144B2Magnetic random access memoryTOSHIBA KK·Filed 2002·Granted Oct 12, 2004·30 cites·24 claims
- 4488US5734286ADriving device of charge pump circuit and driving pulse generation method thereofTOSHIBA KK·Filed 1994·Granted Mar 31, 1998·53 cites·29 claims
- 4588US5050125AElectrically erasable programmable read-only memory with NAND cellstructureTOSHIBA KK·Filed 1988·Granted Sep 17, 1991·60 cites·6 claims
- 4687US6351179B1Semiconductor integrated circuit having active mode and standby mode convertersTOSHIBA KK·Filed 1999·Granted Feb 26, 2002·36 cites·5 claims
- 4787US5615165ANon-volatile semiconductor memory device and memory system using the sameTOSHIBA KK·Filed 1995·Granted Mar 25, 1997·43 cites·135 claims
- 4887US5528547AElectrically erasable programmable read-only memory with electric field decreasing controllerTOSHIBA KK·Filed 1994·Granted Jun 18, 1996·52 cites·17 claims
- 4986US8836007B2Programmable logic switchTOSHIBA KK·Filed 2013·Granted Sep 16, 2014·8 cites·16 claims
- 5086US8315097B2Nonvolatile semiconductor memory deviceHISHIDA TOMOO·Filed 2011·Granted Nov 20, 2012·11 cites·20 claims
Showing the top 50 of 191 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yoshihisa Iwata files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →