Inventor · disambiguated record
Yukio Tamai
Also filed as: TAMAI YUKIO
25 granted patents·12 pending applications·560 citations·filing 2004–2022
97Inventor score
Top patents by PatentIndex Score
37 records- 0197US8054674B2Variable resistive element, manufacturing method for same, and non-volatile semiconductor memory deviceSHARP KK·Filed 2008·Granted Nov 8, 2011·116 cites·25 claims
- 0296US8817525B2Semiconductor memory deviceSHARP KK·Filed 2013·Granted Aug 26, 2014·41 cites·11 claims
- 0394US7863598B2Nonvolatile memory deviceSHARP KK·Filed 2007·Granted Jan 4, 2011·37 cites·30 claims
- 0493US8411488B2Nonvolatile semiconductor memory deviceKAWABATA SUGURU·Filed 2011·Granted Apr 2, 2013·25 cites·19 claims
- 0593US7894239B2Variable resistance element, method for producing the same, and nonvolatile semiconductor storage deviceSHARP KK·Filed 2008·Granted Feb 22, 2011·22 cites·13 claims
- 0693US7236388B2Driving method of variable resistance element and memory deviceSHARP KK·Filed 2005·Granted Jun 26, 2007·30 cites·19 claims
- 0793US7045840B2Nonvolatile semiconductor memory device comprising a variable resistive element containing a perovskite-type crystal structureSHARP KK·Filed 2004·Granted May 16, 2006·84 cites·8 claims
- 0892US7697317B2Nonvolatile semiconductor memory deviceSHARP KK·Filed 2006·Granted Apr 13, 2010·22 cites·25 claims
- 0990US7535746B2Nonvolatile semiconductor memory device and read methodSHARP KK·Filed 2005·Granted May 19, 2009·25 cites·26 claims
- 1089US7259387B2Nonvolatile semiconductor memory deviceSHARP KK·Filed 2005·Granted Aug 21, 2007·24 cites·5 claims
- 1187US8654559B2Semiconductor memory deviceNAKANO TAKASHI·Filed 2011·Granted Feb 18, 2014·12 cites·18 claims
- 1286US8492742B2Variable resistive element, method for producing the same, and nonvolatile semiconductor memory device including the variable resistive elementTAMAI YUKIO·Filed 2012·Granted Jul 23, 2013·11 cites·13 claims
- 1386US8432720B2Nonvolatile semiconductor memory deviceAWAYA NOBUYOSHI·Filed 2011·Granted Apr 30, 2013·13 cites·11 claims
- 1486US7283407B2Semiconductor memory deviceSHARP KK·Filed 2005·Granted Oct 16, 2007·19 cites·36 claims
- 1581US6992920B2Nonvolatile semiconductor memory device, and programming method and erasing method thereofSHARP KK·Filed 2004·Granted Jan 31, 2006·39 cites·37 claims
- 1678US7539040B2Nonvolatile semiconductor memory deviceSHARP KK·Filed 2007·Granted May 26, 2009·13 cites·12 claims
- 1777US8530877B2Non-volatile semiconductor deviceONISHI JUNYA·Filed 2011·Granted Sep 10, 2013·4 cites·11 claims
- 1877US7923711B2Switching elements and production methods thereofNAT INST OF ADVANCED IND SCIEN·Filed 2007·Granted Apr 12, 2011·8 cites·8 claims
- 1968US8742507B2Variable resistive element, method for producing the same, and nonvolatile semiconductor memory device including the variable resistive elementSHARP KK·Filed 2013·Granted Jun 3, 2014·2 cites·13 claims
- 2067US8445881B2Nonvolatile variable resistive element and nonvolatile semiconductor memory deviceAWAYA NOBUYOSHI·Filed 2011·Granted May 21, 2013·4 cites·21 claims
- 2165US7978495B2Nonvolatile semiconductor storage device and method for operating sameSHARP KK·Filed 2006·Granted Jul 12, 2011·5 cites·52 claims
- 2261US7743488B2Manufacturing method for variable resistive elementSHARP KK·Filed 2006·Granted Jun 29, 2010·2 cites·11 claims
- 2360US9508431B2Nonvolatile semiconductor memory device of variable resistive type with reduced variations of forming current after breakdownELPIDA MEMORY INC·Filed 2013·Granted Nov 29, 2016·2 cites·13 claims
- 2460US2020065581A1Image processing method and image processing deviceSHARP KK·Filed 2019·Application pending·0 cites
- 2554US10521660B2Image processing method and image processing deviceSHARP KK·Filed 2017·Granted Dec 31, 2019·0 cites·11 claims
- 2649US2013193396A1Variable resistive element, and non-volatile semiconductor memory deviceSHARP KK·Filed 2013·Application pending·0 cites
- 2749US2022302818A1Semiconductor power device and switching power supply apparatusSHARP KK·Filed 2022·Application pending·0 cites
- 2843US2019043908A1Electromagnetic-wave-transmitting filter and electromagnetic-wave-sensing deviceSHARP KK·Filed 2018·Application pending·0 cites
- 2941US2013248809A1Variable resistive element and nonvolatile semiconductor memory deviceSHARP KK·Filed 2013·Application pending·0 cites
- 3041US2021165144A1Image pickup apparatus and image processing apparatusSHARP KK·Filed 2017·Application pending·0 cites
- 3139US2019019025A1Image pickup apparatus,authentication apparatus, and image pickup methodSHARP KK·Filed 2018·Application pending·0 cites
- 3239US2020249196A1Ion concentration sensorSHARP KK·Filed 2016·Application pending·0 cites
- 3336US2015109093A1Variable resistance elementMICRON MEMORY JAPAN INC·Filed 2014·Application pending·0 cites
- 3436US2017160325A1Ion concentration sensor and ion concentration measurement methodSHARP KK·Filed 2016·Application pending·0 cites
- 3535USRE46022ENonvolatile semiconductor storage device and method for operating sameXENOGENIC DEV LTD LIABILITY COMPANY·Filed 2006·Granted May 31, 2016·0 cites·68 claims
- 3633US2005153504A1Method for manufacturing nonvolatile semiconductor memory deviceSHARP KK·Filed 2005·Application pending·0 cites
- 3733US2012319071A1Non-volatile semiconductor memory device and manufacturing method thereofAWAYA NOBUYOSHI·Filed 2012·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yukio Tamai 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 →