Naoaki Sudo
44Patents
11h-index
15Co-inventors
72Inventor score
Filing activity: Jun 28, 1996 → Oct 28, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6400601B1 | Nonvolatile semiconductor memory device | Physics | 77 | Expired |
| US6215352A | Reference voltage generating circuit with MOS transistors having a floating gate | Physics | 67 | Expired |
| US6094374A | Nonvolatile semiconductor memory device including sense amplifier having verification circuit | Physics | 33 | Expired |
| US7936617B2 | Nonvolatile semiconductor memory device | Physics | 31 | Active |
| US5812018A | Voltage booster circuit | Electricity | 29 | Expired |
| US5659503A | Nonvolatile semiconductor memory having an improved reference voltage generating circuit | Physics | 25 | Expired |
| US6141262A | Boosting circuit with boosted voltage limited | Physics | 23 | Expired |
| US6198685A | Word-line driving circuit and semiconductor memory device | Physics | 20 | Expired |
| US6339549B1 | Semiconductor storage apparatus having main bit line and sub bit line | Physics | 15 | Expired |
| US5831844A | High voltage generating circuit able to generate positive high voltage and negative high voltage at the same time | Electricity | 11 | Expired |
| US8452913B2 | Semiconductor memory device and method of processing data for erase operation of semiconductor memory device | Physics | 11 | Active |
| US6301180A | Sense amplifier circuit and semiconductor storage device | Physics | 10 | Expired |
| US6937515B2 | Semiconductor memory device | Physics | 9 | Expired |
| US10304543B2 | Semiconductor memory device for improving high temperature data retention | Physics | 5 | Active |
| US7453117B2 | Non-volatile semiconductor memory device | Electricity | 4 | Active |
| US6456549B1 | Sense amplifier circuit and semiconductor storage device | Physics | 4 | Expired |
| US6456548B2 | Sense amplifier circuit and semiconductor storage device | Physics | 3 | Expired |
| US7733728B2 | Non-volatile semiconductor memory device | Electricity | 3 | Active |
| US9659659B2 | Semiconductor memory apparatus and data scrambling method using the same | Physics | 2 | Active |
| US7671399B2 | Semiconductor storage device | Electricity | 2 | Active |
| US10896736B2 | Semiconductor memory device and NAND-type flash memory erase method | Physics | 1 | Active |
| US10636497B2 | Semiconductor memory device, manufacturing method thereof and output method of data strobe signal | Physics | 1 | Active |
| US6320455A | Boost circuit | Electricity | 1 | Expired |
| US11487343B2 | Semiconductor storing apparatus and flash memory operation method | Emerging Cross-Sectional Technologies | 1 | Active |
| US9947410B2 | Non-volatile semiconductor memory device | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.