Inventor
OGIWARA RYU
JP74 patents
⚠️ This page may combine multiple inventors who share the name “OGIWARA RYU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
39 patentsUS6473330B1Oct 29, 2002
Chain type ferroelectric memory with isolation transistors coupled between a sense amplifier and an equalization circuit
TOSHIBA KK32 citations96
US7679412B2Mar 16, 2010
Power supply circuit
TOSHIBA KK25 citations93
US7233536B2Jun 19, 2007
Semiconductor memory device having memory cells to store cell data and reference data
TOSHIBA KK21 citations93
US6288961B1Sep 11, 2001
Semiconductor memory device for reading charges stored in capacitor in memory cell and data reading method thereof
TOSHIBA KK18 citations93
US6111777AAug 29, 2000
Ferroelectric memory
TOSHIBA KK22 citations93
US6023438AFeb 8, 2000
Semiconductor memory device for reading charges stored in capacitor in memory cell and data reading method thereof
TOSHIBA KK33 citations93
US5892724AApr 6, 1999
NAND-type dynamic RAM having temporary storage register and sense amplifier coupled to multi-open bit lines
TOSHIBA KK32 citations93
US5625602AApr 29, 1997
NAND-type dynamic RAM having temporary storage register and sense amplifier coupled to multi-open bit lines
TOSHIBA KK18 citations93
US5418750AMay 23, 1995
Semiconductor memory device for suppressing noises occurring on bit and word lines
TOSHIBA KK34 citations93
US9437307B2Sep 6, 2016
Nonvolatile semiconductor memory device
TOSHIBA KK17 citations92
US8873296B2Oct 28, 2014
Nonvolatile semiconductor memory device
TOSHIBA KK9 citations84
US7746164B2Jun 29, 2010
Voltage generating circuit
TOSHIBA KK8 citations84
US7589513B2Sep 15, 2009
Reference voltage generator circuit
TOSHIBA KK9 citations84
US7053431B2May 30, 2006
Phase-change memory device using chalcogenide compound as the material of memory cells
TOSHIBA KK16 citations84
US7046541B2May 16, 2006
Semiconductor integrated circuit device
TOSHIBA KK17 citations84
US6671200B2Dec 30, 2003
Ferroelectric random access memory with isolation transistors coupled between a sense amplifier and an equalization circuit
TOSHIBA KK12 citations82
US7795953B2Sep 14, 2010
Voltage step-down circuit
TOSHIBA KK7 citations74
US7295456B2Nov 13, 2007
Chain ferroelectric random access memory (CFRAM) having an intrinsic transistor connected in parallel with a ferroelectric capacitor
TOSHIBA KK4 citations74
US7057917B2Jun 6, 2006
Ferroelectric memory with an intrinsic access transistor coupled to a capacitor
TOSHIBA KK10 citations74
US6993691B2Jan 31, 2006
Series connected TC unit type ferroelectric RAM and test method thereof
TOSHIBA KK8 citations74
US6980460B2Dec 27, 2005
Semiconductor integrated circuit device and operation method therefor
TOSHIBA KK8 citations74
US6552922B2Apr 22, 2003
Chain-type ferroelectric random access memory (FRAM) with rewrite transistors coupled between a sense amplifier and a bit line pair
TOSHIBA KK6 citations74
US9607693B2Mar 28, 2017
Semiconductor storage device
TOSHIBA KK3 citations73
US9460785B2Oct 4, 2016
Semiconductor storage device
TOSHIBA KK4 citations73
US9311996B2Apr 12, 2016
Semiconductor storage device having resistance-change storage elements
TOSHIBA KK2 citations63
US8045357B2Oct 25, 2011
Semiconductor memory device
TOSHIBA KK2 citations63
US7902913B2Mar 8, 2011
Reference voltage generation circuit
TOSHIBA KK3 citations63
US7852142B2Dec 14, 2010
Reference voltage generating circuit for use of integrated circuit
TOSHIBA KK4 citations63
US7816976B2Oct 19, 2010
Power supply circuit using insulated-gate field-effect transistors
TOSHIBA KK5 citations63
US7763991B2Jul 27, 2010
Voltage generating circuit
TOSHIBA KK3 citations63
US7759928B2Jul 20, 2010
Semiconductor device including an internal voltage generation circuit and a first test circuit
TOSHIBA KK2 citations63
US7750723B2Jul 6, 2010
Voltage generation circuit provided in a semiconductor integrated device
TOSHIBA KK4 citations63
US7733683B2Jun 8, 2010
Semiconductor memory device
TOSHIBA KK4 citations63
US7633330B2Dec 15, 2009
Reference voltage generation circuit
TOSHIBA KK5 citations63
US7443709B2Oct 28, 2008
Temperature sensing circuit, voltage generation circuit, and semiconductor storage device
TOSHIBA KK2 citations63
US7426147B2Sep 16, 2008
Power supply voltage control circuit
TOSHIBA KK5 citations63
US7411809B2Aug 12, 2008
Ferroelectric memory to be tested by applying disturbance voltage to a plurality of ferroelectric capacitors at once in direction to weaken polarization, and method of testing the same
TOSHIBA KK4 citations63
US7061788B2Jun 13, 2006
Semiconductor storage device
TOSHIBA KK5 citations63
US6944046B2Sep 13, 2005
Ferroelectric memory and method of testing the same
TOSHIBA KK6 citations63
KIOXIA CORP
4 patentsUS11765916B2Sep 19, 2023
Memory device and method of manufacturing memory device
KIOXIA CORP2 citations72
US11120866B1Sep 14, 2021
Memory device
KIOXIA CORP2 citations72
US12069872B2Aug 20, 2024
Memory device and method of manufacturing memory device
KIOXIA CORP0 citations62
US11615840B2Mar 28, 2023
Memory device
KIOXIA CORP0 citations62
INFINEON TECHNOLOGIES AG
3 patentsUS6898104B2May 24, 2005
Semiconductor device having semiconductor memory with sense amplifier
INFINEON TECHNOLOGIES AG25 citations93
US7092304B2Aug 15, 2006
Semiconductor memory
INFINEON TECHNOLOGIES AG15 citations84
US7142473B2Nov 28, 2006
Semiconductor device having semiconductor memory with sense amplifier
INFINEON TECHNOLOGIES AG5 citations63
TOSHIBA MEMORY CORP
2 patentsITAGAKI KIYOTARO
1 patentOGIWARA RYU
1 patentShowing the top 50 of 74 patents by PatentIndex Score.