Inventor
NAKAI KIYOSHI
JP48 patents
⚠️ This page may combine multiple inventors who share the name “NAKAI KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELPIDA MEMORY INC
19 patentsUS6795362B2Sep 21, 2004
Power controlling method for semiconductor storage device and semiconductor storage device employing same
ELPIDA MEMORY INC80 citations98
US7502252B2Mar 10, 2009
Nonvolatile semiconductor memory device and phase change memory device
ELPIDA MEMORY INC82 citations97
US8054679B2Nov 8, 2011
Phase change memory device
ELPIDA MEMORY INC45 citations94
US7333363B2Feb 19, 2008
Semiconductor storage apparatus
ELPIDA MEMORY INC21 citations93
US7225390B2May 29, 2007
Semiconductor memory device provided with error correcting code circuitry
ELPIDA MEMORY INC54 citations93
US7813178B2Oct 12, 2010
Semiconductor memory device and write control method therefor
ELPIDA MEMORY INC14 citations84
US7701758B2Apr 20, 2010
Nonvolatile memory device and control method thereof
ELPIDA MEMORY INC13 citations84
US7675770B2Mar 9, 2010
Phase change memory device
ELPIDA MEMORY INC8 citations84
US7554147B2Jun 30, 2009
Memory device and manufacturing method thereof
ELPIDA MEMORY INC16 citations84
US7508707B2Mar 24, 2009
Semiconductor storage apparatus
ELPIDA MEMORY INC12 citations84
US7492033B2Feb 17, 2009
Semiconductor memory device
ELPIDA MEMORY INC12 citations84
US7449711B2Nov 11, 2008
Phase-change-type semiconductor memory device
ELPIDA MEMORY INC13 citations84
US7760545B2Jul 20, 2010
Semiconductor memory device and programming method thereof
ELPIDA MEMORY INC7 citations74
US7738290B2Jun 15, 2010
Phase change memory device
ELPIDA MEMORY INC7 citations74
US7742332B2Jun 22, 2010
Phase-change random access memory device and semiconductor memory device
ELPIDA MEMORY INC6 citations63
US7397695B2Jul 8, 2008
Semiconductor memory apparatus and method for writing in the memory
ELPIDA MEMORY INC6 citations63
US7755952B2Jul 13, 2010
Semiconductor memory device and writing control method thereof
ELPIDA MEMORY INC1 citations52
US7590012B2Sep 15, 2009
Semiconductor storage device
ELPIDA MEMORY INC0 citations52
US7528402B2May 5, 2009
Electrically rewritable non-volatile memory element
ELPIDA MEMORY INC1 citations52
MICRON TECHNOLOGY INC
9 patentsUS11132253B2Sep 28, 2021
Direct-input redundancy scheme with dedicated error correction code circuit
MICRON TECHNOLOGY INC4 citations73
US11016843B2May 25, 2021
Direct-input redundancy scheme with adaptive syndrome decoder
MICRON TECHNOLOGY INC2 citations73
US11854601B2Dec 26, 2023
Apparatuses, systems, and methods for read clock timing alignment in stacked memory devices
MICRON TECHNOLOGY INC1 citations62
US11740964B2Aug 29, 2023
Direct-input redundancy scheme with dedicated error correction code circuit
MICRON TECHNOLOGY INC0 citations62
US11709731B2Jul 25, 2023
Direct-input redundancy scheme with adaptive syndrome decoder
MICRON TECHNOLOGY INC0 citations62
US12340832B2Jun 24, 2025
Circuitry borrowing for memory arrays
MICRON TECHNOLOGY INC0 citations61
US11217291B2Jan 4, 2022
Circuitry borrowing for memory arrays
MICRON TECHNOLOGY INC0 citations61
US11869580B2Jan 9, 2024
Apparatuses, systems, and methods for counter-based read clock in stacked memory devices
MICRON TECHNOLOGY INC0 citations58
US12567459B2Mar 3, 2026
Apparatus for TSV data output control in multiple core dies
MICRON TECHNOLOGY INC0 citations52
HITACHI LTD
8 patentsUS6372554B1Apr 16, 2002
Semiconductor integrated circuit device and method for production of the same
HITACHI LTD135 citations97
US6518835B2Feb 11, 2003
Semiconductor integrated circuit device having an optimal circuit layout to ensure stabilization of internal source voltages without lowering circuit functions and/or operating performance
HITACHI LTD26 citations92
US6411160B1Jun 25, 2002
Semiconductor integrated circuit device
HITACHI LTD20 citations92
US6707139B2Mar 16, 2004
Semiconductor device with plural unit regions in which one or more MOSFETs are formed
HITACHI LTD23 citations91
US6274895B1Aug 14, 2001
Semiconductor integrated circuit device
HITACHI LTD27 citations91
US7017027B2Mar 21, 2006
Address counter control system with path switching
HITACHI LTD12 citations82
US6791132B2Sep 14, 2004
Memory semiconductor device with reduced sense amplifier area
HITACHI LTD9 citations74
US5497349AMar 5, 1996
Dynamic random access memory device having first and second I/O line groups isolated from each other
HITACHI LTD11 citations74
SUMITOMO CHEMICAL CO
4 patentsUS4337367AJun 29, 1982
Oligomer of m-isopropenylphenol
SUMITOMO CHEMICAL CO3 citations62
US4260831AApr 7, 1981
Oligomerization of m-isopropenylphenol
SUMITOMO CHEMICAL CO4 citations62
US4211715AJul 8, 1980
Epoxy resins and process for producing the same
SUMITOMO CHEMICAL CO2 citations62
US4408086AOct 4, 1983
Oligomerization of m-isopropenylphenol
SUMITOMO CHEMICAL CO1 citations51