Inventor
IGUCHI TADASHI
JP53 patents
⚠️ This page may combine multiple inventors who share the name “IGUCHI TADASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
23 patentsUS6720610B2Apr 13, 2004
Nonvolatile semiconductor memory device and its manufacturing method
TOSHIBA KK86 citations99
US7582928B2Sep 1, 2009
Nonvolatile semiconductor memory device and its manufacturing method
TOSHIBA KK17 citations92
US7488646B2Feb 10, 2009
Nonvolatile semiconductor memory device and its manufacturing method
TOSHIBA KK12 citations92
US7382015B2Jun 3, 2008
Semiconductor device including an element isolation portion having a recess
TOSHIBA KK24 citations92
US6987047B2Jan 17, 2006
Method of manufacturing a nonvolatile semiconductor memory device having a stacked gate structure
TOSHIBA KK18 citations92
US6974746B2Dec 13, 2005
Method of manufacturing a nonvolatile semiconductor memory device having a stacked gate structure
TOSHIBA KK18 citations92
US6462373B2Oct 8, 2002
Nonvolatile semiconductor memory device having tapered portion on side wall of charge accumulation layer
TOSHIBA KK27 citations92
US7986000B2Jul 26, 2011
Semiconductor device and method of manufacturing the same
TOSHIBA KK13 citations84
US7915156B2Mar 29, 2011
Semiconductor memory device and method for manufacturing the same
TOSHIBA KK10 citations84
US7795667B2Sep 14, 2010
Semiconductor memory preventing an electric short circuit between a word line and a semiconductor substrate, and manufacturing method for the semiconductor memory
TOSHIBA KK7 citations74
US9048224B2Jun 2, 2015
Nonvolatile semiconductor memory device and method for manufacturing same
TOSHIBA KK6 citations73
US9548315B2Jan 17, 2017
Nonvolatile semiconductor memory device, method of manufacturing the same, and method of measuring the same
TOSHIBA KK2 citations71
US7847337B2Dec 7, 2010
Integral circuit including non-volatile memory cell
TOSHIBA KK5 citations63
US6927132B2Aug 9, 2005
Method for producing nonvolatile semiconductor memory device and the device itself
TOSHIBA KK5 citations63
US7586786B2Sep 8, 2009
Nonvolatile semiconductor memory
TOSHIBA KK2 citations62
US7382649B2Jun 3, 2008
Nonvolatile semiconductor memory
TOSHIBA KK5 citations62
US6984858B2Jan 10, 2006
Semiconductor device and manufacturing method thereof
TOSHIBA KK6 citations62
US7276757B2Oct 2, 2007
Semiconductor device with shallow trench isolation and method of fabricating the same
TOSHIBA KK2 citations58
US9570461B2Feb 14, 2017
Method for manufacturing semiconductor memory device
TOSHIBA KK1 citations52
US7550342B2Jun 23, 2009
Nonvolatile semiconductor memory device and method of manufacturing the same
TOSHIBA KK0 citations52
US7208801B2Apr 24, 2007
Nonvolatile semiconductor memory device and method of manufacturing the same
TOSHIBA KK0 citations52
US9159613B2Oct 13, 2015
Non-volatile memory device, method for fabricating pattern on wafer and method for manufacturing non-volatile memory device using same
TOSHIBA KK1 citations51
US8912089B2Dec 16, 2014
Method for manufacturing a semiconductor device including a stacked body comprising pluralities of first and second metallic conductive layers
TOSHIBA KK1 citations51
TOSHIBA MEMORY CORP
9 patentsUS10515997B2Dec 24, 2019
Memory device and method for manufacturing the same
TOSHIBA MEMORY CORP2 citations73
US10186520B2Jan 22, 2019
Semiconductor memory devices including a memory cell array and stepped wiring portions, and manufacturing methods thereof
TOSHIBA MEMORY CORP4 citations73
US9793287B2Oct 17, 2017
Semiconductor wafer with first and second stacked bodies and semiconductor memory device
TOSHIBA MEMORY CORP2 citations73
US9997526B2Jun 12, 2018
Semiconductor device and method for manufacturing same
TOSHIBA MEMORY CORP5 citations72
US11152391B2Oct 19, 2021
Semiconductor memory device and production method thereof
TOSHIBA MEMORY CORP0 citations62
US11127750B2Sep 21, 2021
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations62
US10147735B2Dec 4, 2018
Semiconductor memory device and production method thereof
TOSHIBA MEMORY CORP0 citations52
US10553600B2Feb 4, 2020
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations51
US9935118B1Apr 3, 2018
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations51
KIOXIA CORP
7 patentsUS12200931B2Jan 14, 2025
Semiconductor memory device and production method thereof
KIOXIA CORP0 citations62
US12137559B2Nov 5, 2024
Semiconductor memory device
KIOXIA CORP0 citations62
US11637116B2Apr 25, 2023
Semiconductor memory device
KIOXIA CORP0 citations62
US11563026B2Jan 24, 2023
Semiconductor storage device
KIOXIA CORP1 citations62
US12532470B2Jan 20, 2026
Semiconductor memory device
KIOXIA CORP0 citations51
US12381152B2Aug 5, 2025
Semiconductor storage device
KIOXIA CORP0 citations51
US12075620B2Aug 27, 2024
Semiconductor memory device
KIOXIA CORP0 citations51
IWASE MASAO
2 patentsBANDAI NAMCO ENTERTAINMENT INC
2 patentsNAMCO LTD
1 patentIINO HIROMITSU
1 patentHIGASHI KAZUYUKI
1 patentKITAZAKI SOICHIRO
1 patentICHINOSE DAIGO
1 patentGOMIKAWA KENJI
1 patentKUBOI SHUICHI
1 patentShowing the top 50 of 53 patents by PatentIndex Score.