Ken Sumitani
17Patents
7h-index
16Co-inventors
59Inventor score
Filing activity: Feb 3, 2000 → Oct 11, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6646947B2 | Data transfer control device, semiconductor memory device and electronic information apparatus | Physics | 38 | Expired |
| US6751716B2 | Semiconductor storage device, control device, and electronic apparatus | Physics | 29 | Expired |
| US6522581B2 | Semiconductor storage device | Physics | 25 | Expired |
| US6944093B2 | Semiconductor memory device | Physics | 13 | Expired |
| US6785185B2 | Semiconductor memory device, information apparatus, and method for determining access period for semiconductor memory device | Physics | 12 | Expired |
| US6301154A | Semiconductor memory device having floating gate type transistors programmed to have differing threshold voltages | Physics | 9 | Expired |
| US6671208B2 | Nonvolatile semiconductor storage device with limited consumption current during erasure and erase method therefor | Electricity | 7 | Expired |
| US8403532B2 | LED module and LED light source apparatus | Electricity | 5 | Active |
| US9970994B2 | Electronic device | Physics | 4 | Active |
| US6751153B2 | Non-volatile semiconductor memory device and information apparatus | Physics | 2 | Expired |
| US8714764B2 | Light emitting module, light emitting module unit, and backlight system | Physics | 2 | Active |
| US6493278B2 | Semiconductor device and control device for use therewith | Physics | 2 | Expired |
| US9804320B2 | Illumination device with edge-lit light guide with opposed light sources | Physics | 2 | Active |
| US7545683B2 | Semiconductor memory device | Physics | 1 | Active |
| US6549475B2 | Semiconductor memory device and information device | Physics | 1 | Expired |
| US10657929B2 | Image display system with image rotation processing | Physics | 0 | Active |
| US7161843B2 | Semiconductor memory device and method for writing data | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.