Inventor

TANAKA SUMIO

JP72 patents

⚠️ This page may combine multiple inventors who share the name “TANAKA SUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TANAKA SUMIO

TOSHIBA KK

Nonvolatile semiconductor memory device having a word line to which a negative voltage is applied

Nonvolatile semiconductor memory device

Nonvolatile semiconductor memory device having row decoder supplying a negative potential to word lines during erase mode

Chain type ferroelectric memory with isolation transistors coupled between a sense amplifier and an equalization circuit

Nonvolatile semiconductor memory device having row decoder

Ferroelectric memory used for the RFID system, method for driving the same, semiconductor chip and ID card

Nonvolatile semiconductor memory device having row decoder

Variable potential generating circuit using current-scaling adding type D/A converter circuit

Fram, fram card, and card system using the same

Nonvolatile semiconductor memory device having a row decoder supplying a negative potential to word lines during erase mode

Non-volatile semiconductor memory device with high voltage generator

Address detector of a redundancy memory cell

Nonvolatile semiconductor memory having page mode programming function

Semiconductor memory device with testing of redundant memory cells

Semiconductor memory device for reading charges stored in capacitor in memory cell and data reading method thereof

Ferroelectric memory device

Ferroelectric memory

Variable potential generating circuit using current-scaling adding type D/A converter circuit in semiconductor memory device

Ferroelectric memory and screening method therefor

Semiconductor memory device for reading charges stored in capacitor in memory cell and data reading method thereof

Nonvolatile ferroelectric memory

Nonvolatile semiconductor memory device having row decoder supplying a negative potential to wordlines during erase mode

Nonvolatile semiconductor memory device having row decoder supplying a negative potential to word lines during erase mode

Nonvolatile semiconductor memory capable of simultaneously equalizing bit lines and sense lines

Semiconductor nonvolatile memory apparatus including threshold voltage shift circuitry

Semiconductor nonvolatile memory device for controlling the potentials on bit lines

2-cell/1-bit type EPROM

Non-volatile semiconductor memory having improved testing circuitry

Voltage level converting circuit

Semiconductor memory device with P-channel MOS transistor load circuit

Nonvolatile semiconductor memory device

Nonvolatile semiconductor memory device with a lightly-doped drain structure

High voltage switching circuit in a nonvolatile memory

Nonvolatile semiconductor memory device

Data sense circuit for a semiconductor nonvolatile memory device

Ferroelectric random access memory with isolation transistors coupled between a sense amplifier and an equalization circuit

Nonvolatile semiconductor memory device including potential generating circuit

Semiconductor read only memory device with improved access time

Chain ferroelectric random access memory (CFRAM) having an intrinsic transistor connected in parallel with a ferroelectric capacitor

Ferroelectric memory with an intrinsic access transistor coupled to a capacitor

Chain-type ferroelectric random access memory (FRAM) with rewrite transistors coupled between a sense amplifier and a bit line pair

Nonvolatile semiconductor memory device including a circuit for providing a boosted potential

Nonvolatile semiconductor memory device

Nonvolatile semiconductor memory device

Nonvolatile semiconductor memory device having row decoder

TOKYO SHIBAURA ELECTRIC CO

Circuit for changing the voltage level of binary signals

Nonvolatile read only memory device

TOSHIBA CORP

FRAM, FRAM card, and card system using the same

RICOH KK

VTR system

GOLD STAR CO

Video tape recorder equipped with liquid crystal display projector