Hiroto Nakai
63Patents
25h-index
61Co-inventors
91Inventor score
Filing activity: May 18, 1987 → Sep 15, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5297029A | Semiconductor memory device | Physics | 128 | Expired |
| US8135900B2 | Integrated memory management and memory management method | Physics | 107 | Active |
| US5321655A | Semiconductor memory device | Physics | 106 | Expired |
| US5258958A | Semiconductor memory device | Physics | 89 | Expired |
| US5371702A | Block erasable nonvolatile memory device | Physics | 78 | Expired |
| US5361227A | Non-volatile semiconductor memory device and memory system using the same | Physics | 75 | Expired |
| US8738851B2 | Device and memory system for swappable memory | Physics | 63 | Active |
| US4819212A | Nonvolatile semiconductor memory device with readout test circuitry | Physics | 63 | Expired |
| US8458436B2 | Device and memory system for memory management using access frequency information | Physics | 63 | Active |
| US8589639B2 | Memory management unit and memory management method for controlling a nonvolatile memory and a volatile memory | Physics | 63 | Active |
| US5428569A | Non-volatile semiconductor memory device | Physics | 63 | Expired |
| US6028794A | Nonvolatile semiconductor memory device and erasing method of the same | Physics | 51 | Expired |
| US6122193A | Non-volatile semiconductor memory capable of storing 1-bit data or multi-bit data | Physics | 51 | Expired |
| US5546351A | Non-volatile semiconductor memory device and memory system using the same | Physics | 46 | Expired |
| US6262926A | Nonvolatile semiconductor memory device | Physics | 42 | Expired |
| US5197028A | Semiconductor memory device with dual reference elements | Physics | 42 | Expired |
| US5682346A | Nonvolatile semiconductor memory device having suitable writing efficiency | Physics | 41 | Expired |
| US5724300A | Non-volatile semiconductor memory device and memory system using the same | Physics | 37 | Expired |
| US6172911A | Non-volatile semiconductor memory device with an improved verify voltage generator | Physics | 33 | Expired |
| US5615165A | Non-volatile semiconductor memory device and memory system using the same | Physics | 32 | Expired |
| US5587948A | Nonvolatile semiconductor memory with NAND structure memory arrays | Physics | 31 | Expired |
| US5214609A | Semiconductor integrated circuit | Physics | 26 | Expired |
| US5073726A | Input circuit of semiconductor integrated circuit and semiconductor integrated circuit having input circuit | Electricity | 26 | Expired |
| US4922133A | Voltage detecting circuit | Electricity | 25 | Expired |
| US5436913A | Non-volatile semiconductor memory device using successively longer write pulses | Physics | 25 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.