Inventor
TOKUTOMI TSUKASA
JP46 patents
⚠️ This page may combine multiple inventors who share the name “TOKUTOMI TSUKASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KIOXIA CORP
25 patentsUS11561736B2Jan 24, 2023
Memory system
KIOXIA CORP4 citations86
US12165712B2Dec 10, 2024
Memory system
KIOXIA CORP1 citations73
US11875063B2Jan 16, 2024
Memory system
KIOXIA CORP2 citations73
US11626167B2Apr 11, 2023
Memory system
KIOXIA CORP2 citations73
US11367489B2Jun 21, 2022
Multi-bit memory system with adaptive read voltage controller
KIOXIA CORP2 citations73
US11238936B2Feb 1, 2022
Memory system for restraining threshold variation to improve data reading
KIOXIA CORP2 citations72
US12424286B2Sep 23, 2025
Memory system
KIOXIA CORP0 citations62
US12340124B2Jun 24, 2025
Memory system
KIOXIA CORP0 citations62
US12283330B2Apr 22, 2025
Memory system
KIOXIA CORP0 citations62
US12094541B2Sep 17, 2024
Memory system
KIOXIA CORP1 citations62
US12073890B2Aug 27, 2024
Memory system
KIOXIA CORP0 citations62
US12068044B2Aug 20, 2024
Memory system including semiconductor memory and controller capable of determining necessary shifted boundary read voltages in a short period of time
KIOXIA CORP0 citations62
US11915759B2Feb 27, 2024
Memory system for restraining threshold variation to improve data reading
KIOXIA CORP0 citations62
US11892907B2Feb 6, 2024
Memory system
KIOXIA CORP0 citations62
US11790986B2Oct 17, 2023
Semiconductor storage device and memory system including semiconductor storage device and controller
KIOXIA CORP0 citations62
US11763893B2Sep 19, 2023
Memory system
KIOXIA CORP0 citations62
US11756642B2Sep 12, 2023
Memory system
KIOXIA CORP0 citations62
US11682464B2Jun 20, 2023
Method of controlling a semiconductor memory including memory cells and a word line
KIOXIA CORP0 citations62
US11537465B2Dec 27, 2022
Memory system
KIOXIA CORP0 citations62
US11437096B2Sep 6, 2022
Semiconductor storage device and memory system including semiconductor storage device and controller
KIOXIA CORP0 citations62
US11315643B2Apr 26, 2022
Method of controlling a semiconductor memory
KIOXIA CORP0 citations62
US11211138B2Dec 28, 2021
Memory system
KIOXIA CORP0 citations59
US12300328B2May 13, 2025
Memory system and method for controlling semiconductor memory
KIOXIA CORP0 citations49
US11699499B2Jul 11, 2023
Memory system including parities written to dummy memory cell groups
KIOXIA CORP0 citations47
US12585584B2Mar 24, 2026
Solid state storage device and patrol read method using word line groupings thereof
KIOXIA CORP0 citations38
TOSHIBA MEMORY CORP
21 patentsUS10431299B2Oct 1, 2019
Semiconductor storage device and memory system
TOSHIBA MEMORY CORP19 citations94
US11195585B2Dec 7, 2021
Calculating shift amounts for read voltage correction
TOSHIBA MEMORY CORP8 citations84
US11086573B2Aug 10, 2021
Memory system
TOSHIBA MEMORY CORP4 citations84
US10796776B2Oct 6, 2020
Nonvolatile memory and memory system
TOSHIBA MEMORY CORP8 citations84
US10796754B2Oct 6, 2020
Semiconductor storage device and memory system including semiconductor storage device and controller
TOSHIBA MEMORY CORP4 citations84
US10714192B2Jul 14, 2020
Memory system
TOSHIBA MEMORY CORP5 citations84
US10635354B2Apr 28, 2020
Memory system
TOSHIBA MEMORY CORP6 citations84
US10325664B2Jun 18, 2019
Multi-bit memory system with adaptive read voltage controller
TOSHIBA MEMORY CORP5 citations84
US10204680B2Feb 12, 2019
Semiconductor storage device and memory system
TOSHIBA MEMORY CORP7 citations84
US10910066B2Feb 2, 2021
Memory system
TOSHIBA MEMORY CORP1 citations73
US10956264B2Mar 23, 2021
Memory system
TOSHIBA MEMORY CORP1 citations72
US10803953B2Oct 13, 2020
Memory system for restraining threshold variation to improve data reading
TOSHIBA MEMORY CORP2 citations72
US10541030B2Jan 21, 2020
Memory system for restraining threshold variation to improve data reading
TOSHIBA MEMORY CORP3 citations72
US10430275B2Oct 1, 2019
Memory system
TOSHIBA MEMORY CORP2 citations72
US11004523B2May 11, 2021
Nonvolatile memory and memory system
TOSHIBA MEMORY CORP1 citations63
US11222703B2Jan 11, 2022
Memory system
TOSHIBA MEMORY CORP0 citations62
US11152075B2Oct 19, 2021
Memory system
TOSHIBA MEMORY CORP0 citations62
US11017863B2May 25, 2021
Multi-bit memory system with adaptive read voltage controller
TOSHIBA MEMORY CORP0 citations62
US10910067B2Feb 2, 2021
Memory system
TOSHIBA MEMORY CORP0 citations62
US11211396B2Dec 28, 2021
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations52
US10141061B2Nov 27, 2018
Memory system
TOSHIBA MEMORY CORP0 citations42