Hernan A. Castro
133Patents
17h-index
40Co-inventors
86Inventor score
Filing activity: Dec 9, 1988 → May 20, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5028810A | Four quadrant synapse cell employing single column summing line | Physics | 98 | Expired |
| US4961002A | Synapse cell employing dual gate transistor structure | Physics | 73 | Expired |
| US4950917A | Semiconductor cell for neural network employing a four-quadrant multiplier | Physics | 64 | Expired |
| US4904881A | EXCLUSIVE-OR cell for neural network and the like | Physics | 42 | Expired |
| US5050123A | Radiation shield for EPROM cells | Physics | 39 | Expired |
| US8891280B2 | Interconnection for memory electrodes | Electricity | 37 | Active |
| US4956564A | Adaptive synapse cell providing both excitatory and inhibitory connections in an associative network | Physics | 37 | Expired |
| US9312005B2 | Accessing memory cells in parallel in a cross-point array | Physics | 31 | Active |
| US5031142A | Reset circuit for redundant memory using CAM cells | Physics | 29 | Expired |
| US9025398B2 | Metallization scheme for integrated circuit | Electricity | 29 | Active |
| US9190144B2 | Memory device architecture | Electricity | 23 | Active |
| US9378774B2 | Interconnection for memory electrodes | Electricity | 21 | Active |
| US8767482B2 | Apparatuses, devices and methods for sensing a snapback event in a circuit | Physics | 21 | Active |
| US10847220B2 | Apparatuses and methods for bi-directional access of crosspoint arrays | Physics | 21 | Active |
| US7106626B2 | Serially sensing the output of multilevel cell arrays | Physics | 18 | Expired |
| US5088066A | Redundancy decoding circuit using n-channel transistors | Physics | 18 | Expired |
| US9355718B2 | Metallization scheme for integrated circuit | Electricity | 18 | Active |
| US10366747B2 | Comparing input data to stored data | Physics | 17 | Active |
| US9224635B2 | Connections for memory electrode lines | Electricity | 16 | Active |
| US5155377A | Charge domain differential conductance synapse cell for neural networks | Physics | 16 | Expired |
| US8374022B2 | Programming phase change memories using ovonic threshold switches | Physics | 16 | Active |
| US9786345B1 | Compensation for threshold voltage variation of memory cell components | Physics | 15 | Active |
| US9324423B2 | Apparatuses and methods for bi-directional access of cross-point arrays | Physics | 15 | Active |
| US10395738B2 | Operations on memory cells | Physics | 14 | Active |
| US8917534B2 | Path isolation in a memory device | Physics | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.