KK

Kazuhiko Kajigaya

HI Hitachi: 107 patents #26 of 28,497Top 1%
EM Elpida Memory: 91 patents #1 of 692Top 1%
PS Ps4 Luxco S.A.R.L.: 23 patents #1 of 276Top 1%
Micron: 18 patents #949 of 6,345Top 15%
HE Hitachi Vlsi Engineering: 14 patents #20 of 666Top 4%
HC Hitachi Ulsi Systems Co.: 13 patents #26 of 867Top 3%
HC Hitachi Device Engineering Co.: 7 patents #48 of 514Top 10%
LS Longitude Semiconductor S.A.R.L.: 1 patents #11 of 67Top 20%
RS Rising Silicon: 1 patents #3 of 20Top 15%
UL Ultramemory: 1 patents #10 of 15Top 70%
📍 Tokyo, WA: #2 of 89 inventorsTop 3%
Overall (All Time): #2,518 of 4,157,543Top 1%
227
Patents All Time

Issued Patents All Time

Showing 1–25 of 227 patents

Patent #TitleCo-InventorsDate
12334473 Stacked semiconductor, wafer stack, method of manufacturing stacked semiconductor, assistance device, and program 2025-06-17
11520485 Data caching for ferroelectric memory 2022-12-06
11449258 Apparatuses and methods for accessing hybrid memory system 2022-09-20
10998046 FeRAM-DRAM hybrid memory 2021-05-04
10839933 Memory devices having a read function of data stored in a plurality of reference cells 2020-11-17
10776016 Data caching for ferroelectric memory 2020-09-15
10747463 Apparatuses and methods for accessing hybrid memory system 2020-08-18
10522222 Semiconductor device and error correction method 2019-12-31
10381079 FeRAM-DRAM hybrid memory 2019-08-13
10381102 Memory devices having a read function of data stored in a plurality of reference cells 2019-08-13
10082964 Data caching for ferroelectric memory 2018-09-25
10002666 FeRAM-DRAM hybrid memory 2018-06-19
9984739 Apparatuses and methods for controlling wordlines and sense amplifiers 2018-05-29
9892784 Semiconductor device and error correction method 2018-02-13
9761312 FeRAM-DRAM hybrid memory 2017-09-12
9619319 Semiconductor device and error correction information writing method 2017-04-11
9601183 Apparatuses and methods for controlling wordlines and sense amplifiers 2017-03-21
9558063 Semiconductor device and error correction method 2017-01-31
9514792 Semiconductor device having stacked layers 2016-12-06
RE46110 Semiconductor device having single-ended sensing amplifier 2016-08-16
9293190 Semiconductor storage device 2016-03-22
9263115 Semiconductor device 2016-02-16
9214218 Semiconductor DRAM with non-linear word line discharge 2015-12-15
RE45819 Semiconductor device, semiconductor memory device and data processing system comprising semiconductor system 2015-12-15
9202529 Semiconductor memory device having vertical transistors 2015-12-01