Inventor
TOBIOKA AKIHIRO
JP16 patents
⚠️ This page may combine multiple inventors who share the name “TOBIOKA AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANDISK TECHNOLOGIES LLC
13 patentsUS11495612B2Nov 8, 2022
Three-dimensional memory device including stairless word line contact structures for and method of making the same
SANDISK TECHNOLOGIES LLC8 citations86
US10861871B2Dec 8, 2020
Three-dimensional memory array including self-aligned dielectric pillar structures and methods of making the same
SANDISK TECHNOLOGIES LLC15 citations84
US12457749B2Oct 28, 2025
Three-dimensional memory device with backside support pillar structures and methods of forming the same
SANDISK TECHNOLOGIES LLC1 citations73
US12010842B2Jun 11, 2024
Method of forming a stepped surface in a three-dimensional memory device and structures incorporating the same
SANDISK TECHNOLOGIES LLC2 citations72
US11844222B2Dec 12, 2023
Three-dimensional memory device with backside support pillar structures and methods of forming the same
SANDISK TECHNOLOGIES LLC2 citations71
US11749600B2Sep 5, 2023
Three-dimensional memory device with hybrid staircase structure and methods of forming the same
SANDISK TECHNOLOGIES LLC2 citations71
US12408345B2Sep 2, 2025
Three-dimensional memory device with backside support pillar structures and methods of forming the same
SANDISK TECHNOLOGIES LLC1 citations63
US11450679B2Sep 20, 2022
Three-dimensional memory device including stairless word line contact structures for and method of making the same
SANDISK TECHNOLOGIES LLC1 citations62
US11189637B2Nov 30, 2021
Three-dimensional memory array including self-aligned dielectric pillar structures and methods of making the same
SANDISK TECHNOLOGIES LLC0 citations61
US12456686B2Oct 28, 2025
Three-dimensional memory device with multilevel drain-select electrodes and methods for forming the same
SANDISK TECHNOLOGIES LLC0 citations51
US12255154B2Mar 18, 2025
Three-dimensional memory device with orthogonal memory opening and support opening arrays and method of making thereof
SANDISK TECHNOLOGIES LLC0 citations51
US12369319B2Jul 22, 2025
Three-dimensional memory device containing dual-depth drain-select-level isolation structures and methods for forming the same
SANDISK TECHNOLOGIES LLC0 citations50
US10274841B2Apr 30, 2019
Reticle with reduced transmission regions for detecting a defocus condition in a lithography process
SANDISK TECHNOLOGIES LLC0 citations50