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Inventor

Keisuke Nakatsuka

Inventor
Seoul, KR

Overview

17→
Patents
2014–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 17 as inventor

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

G11Cprimary
G11CStatic stores23%
H01LSemiconductor devices23%
H10BElectronic memory devices23%
H10NElectric solid-state devices not otherwise provided for14%
H10DInorganic electric semiconductor devices5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
G01RMeasuring electric variables2%
G11BInformation storage based on relative movement between record carrier and transducer2%
H03KPulse technique2%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation2%
PatentTitleYear
10,867,641Data latch circuit and semiconductor memory device202010,748,920Semiconductor memory device202010,636,809Semiconductor memory device202010,311,929Resistance change memory201910,049,711Magnetoresistive memory device201810,020,040Semiconductor memory device20189,934,834Magnetoresistive memory device20189,887,237'Magnetic storage device'20189,773,539'Logical operation circuit and memory device'20179,728,242'Memory device'20179,620,565'Semiconductor memory device'20179,401,386'Semiconductor memory device'20169,305,972'Magnetic random access memory and method of manufacturing the same'20169,190,452'Semiconductor memory device'20159,082,640'Pass gate and semiconductor storage device having the same'20158,872,275'SRAM device having four tunneling transistors connected to a flip-flop'20148,659,061'Solid-state image capturing element'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2017Patents assigned to TOSHIBA KK (7)· patent assignee history
2014–2017Patents assigned to NAKATSUKA KEISUKE (6)· patent assignee history
2014Patents assigned to SASAKI HIROKI (1)· patent assignee history
2014Based in Yokohama, JP· patent location history
2015–2019Based in Seoul, KR· patent location history
2015–2020Based in Kobe, JP· patent location history
2017–2020Patents assigned to TOSHIBA MEMORY CORP (9)· patent assignee history
2019Patents assigned to SK HYNIX INC (1)· patent assignee history
2020Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA MEMORY CORP92017–2020
TOSHIBA KK72014–2017
NAKATSUKA KEISUKEself62014–2017
SASAKI HIROKI12014
SK HYNIX INC12019
Locations
LocationPatentsSpan
Seoul, KR102015–2019
Kobe, JP42015–2020
Yokohama, JP22014
Hyogo, JP12020