Norikatsu Takaura
49Patents
14h-index
47Co-inventors
77Inventor score
Filing activity: Jun 27, 2001 → Sep 17, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7864568B2 | Semiconductor storage device | Physics | 216 | Active |
| US7126149B2 | Phase change memory and phase change recording medium | Electricity | 147 | Expired |
| US7123535B2 | Semiconductor integrated circuit device | Physics | 65 | Expired |
| US6670642B2 | Semiconductor memory device using vertical-channel transistors | Electricity | 56 | Expired |
| US7489552B2 | Semiconductor integrated circuit device | Physics | 56 | Active |
| US7071485B2 | Semiconductor integrated circuit device | Electricity | 37 | Expired |
| US7098478B2 | Semiconductor memory device using vertical-channel transistors | Electricity | 26 | Expired |
| US7443721B2 | Semiconductor integrated device | Physics | 24 | Active |
| US8169819B2 | Semiconductor storage device | Physics | 22 | Active |
| US8129705B2 | Nonvolatile memory device and method of manufacturing the same | Emerging Cross-Sectional Technologies | 20 | Active |
| US7154788B2 | Semiconductor integrated circuit device | Physics | 18 | Expired |
| US7667218B2 | Semiconductor integrated circuit device and method of manufacturing the same | Electricity | 17 | Expired |
| US7206216B2 | Semiconductor device with a non-erasable memory and/or a nonvolatile memory | Physics | 17 | Expired |
| US7335907B2 | Memory device | Physics | 16 | Expired |
| US7859896B2 | Semiconductor device | Physics | 14 | Expired |
| US8427865B2 | Semiconductor storage device | Physics | 12 | Active |
| US7470923B2 | Semiconductor integrated circuit device | Electricity | 12 | Expired |
| US6538945B2 | Sense amplifiers having reduced Vth deviation | Electricity | 10 | Expired |
| US7796426B2 | Semiconductor device | Physics | 10 | Active |
| US6900492B2 | Integrated circuit device with P-type gate memory cell having pedestal contact plug and peripheral circuit | Electricity | 8 | Expired |
| US8000126B2 | Semiconductor device with recording layer containing indium, germanium, antimony and tellurium | Electricity | 8 | Active |
| US7638786B2 | Semiconductor and semiconductor manufacturing arrangements having a chalcogenide layer formed of columnar crystal grains perpendicular to a main substrate surface | Electricity | 7 | Expired |
| US7829930B2 | Semiconductor device with ion movement control | Physics | 6 | Active |
| US6399453B2 | Process of manufacturing semiconductor integrated circuit device having an amorphous silicon gate | Electricity | 6 | Expired |
| US7767997B2 | Semiconductor device with solid electrolyte switching | Electricity | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.