Haruki Toda
236Patents
28h-index
48Co-inventors
90Inventor score
Filing activity: May 16, 1984 → Apr 6, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6125071A | Semiconductor memory device with high data read rate | Physics | 426 | Expired |
| US6449727B1 | High-speed data transfer synchronizing system and method | Physics | 143 | Expired |
| US7606059B2 | Three-dimensional programmable resistance memory device with a read/write circuit stacked under a memory cell array | Electricity | 140 | Expired |
| US5323358A | Clock-synchronous semiconductor memory device and method for accessing the device | Physics | 103 | Expired |
| US7729158B2 | Resistance change memory device | Electricity | 89 | Active |
| US7394680B2 | Resistance change memory device having a variable resistance element with a recording layer electrode served as a cation source in a write or erase mode | Physics | 88 | Active |
| US5010518A | Semiconductor memory device | Physics | 74 | Expired |
| US7400522B2 | Resistance change memory device having a variable resistance element formed of a first and second composite compound for storing a cation | Physics | 70 | Active |
| US6321343A | Semiconductor memory system comprising synchronous DRAM and controller thereof | Physics | 64 | Expired |
| US7459716B2 | Resistance change memory device | Emerging Cross-Sectional Technologies | 60 | Active |
| US5867432A | Clock control circuit | Physics | 60 | Expired |
| US7335906B2 | Phase change memory device | Electricity | 57 | Expired |
| US7459715B2 | Resistance change memory device | Emerging Cross-Sectional Technologies | 55 | Active |
| US5926436A | Semiconductor memory device | Physics | 54 | Expired |
| US4603403A | Data output circuit for dynamic memory device | Physics | 54 | Expired |
| US7623370B2 | Resistance change memory device | Electricity | 48 | Active |
| US6847555B2 | Non-volatile semiconductor memory device reading and writing multi-value data from and into pair-cells | Physics | 45 | Expired |
| US6484246B2 | High-speed random access semiconductor memory device | Physics | 45 | Expired |
| US5249165A | Memory cell array divided type multi-port semiconductor memory device | Physics | 41 | Expired |
| US5029128A | Semiconductor memory device with ferroelectric capacitor cells with a plate to which a mid-level voltage is applied | Physics | 39 | Expired |
| US7989789B2 | Phase-change memory device that stores information in a non-volatile manner by changing states of a memory material | Electricity | 36 | Active |
| US6085283A | Data selecting memory device and selected data transfer device | Physics | 36 | Expired |
| US5973991A | Semiconductor memory capable of successively accessing cell array blocks with a plurality of operation modes having different cycle times | Physics | 33 | Expired |
| US5313437A | Semiconductor memory device | Physics | 33 | Expired |
| US5051954A | Semiconductor memory device | Physics | 29 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.