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Inventor

Masaaki Niijima

Inventor
Machida, JP

Overview

19→
Patents
1999–2021
Patent span
Physics
Primary field (CPC G)

Patents· 19 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Cprimary
G11CStatic stores50%
G06FElectric digital data processing20%
G11BInformation storage based on relative movement between record carrier and transducer13%
H01LSemiconductor devices7%
H10BElectronic memory devices7%
H05KPrinted circuits3%
PatentTitleYear
11,127,476Memory system controlling a threshold voltage in a read operation and method202110,910,068Memory system and nonvolatile memory202110,740,101Memory system202010,658,055Memory system and method for controlling memory system202010,586,601Semiconductor memory device and read control method thereof202010,552,043Memory system202010,497,446Memory system controlling data erase for nonvolatile memory and control method for erasing data201910,395,723Memory system that differentiates voltages applied to word lines201910,366,771Controller, memory system, and block management method for NAND flash memory using the same201910,249,349Control system201910,186,326Memory device that executes an erase operation for a nonvolatile memory20199,852,786Semiconductor memory device that varies voltage levels depending on which of different memory regions thereof is accessed20179,812,215'Memory device that executes an erase operation for a nonvolatile memory'20179,788,463'Semiconductor memory device having a heat insulating mechanism'20179,728,268'Memory device'20179,362,000'Memory system and management method thereof'20166,587,311'Magnetic storage device having a head suspension'20036,297,938'Magnetic head and method for producing the same'20015,978,181'Magnetic head and magnetic recording/reproducing apparatus'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2003Patents assigned to FUJITSU LTD (3)· patent assignee history
1999Based in Kanagawa, JP· patent location history
2001–2003Based in Kawasaki, JP· patent location history
2016–2017Patents assigned to TOSHIBA KK (2)· patent assignee history
2016–2021Based in Machida, JP· patent location history
2017–2020Patents assigned to TOSHIBA MEMORY CORP (12)· patent assignee history
2017–2021Based in Tokyo, JP· patent location history
2021Patents assigned to KIOXIA CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA MEMORY CORP122017–2020
FUJITSU LTD31999–2003
KIOXIA CORP22021
TOSHIBA KK22016–2017
Locations
LocationPatentsSpan
Machida, JP142016–2021
Tokyo, JP22017–2021
Kawasaki, JP22001–2003
Kanagawa, JP11999