Toru Kaga
42Patents
19h-index
83Co-inventors
84Inventor score
Filing activity: Jul 19, 1984 → Apr 15, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5106775A | Process for manufacturing vertical dynamic random access memories | Electricity | 405 | Expired |
| US5177576A | Dynamic random access memory having trench capacitors and vertical transistors | Electricity | 118 | Expired |
| US5466621A | Method of manufacturing a semiconductor device having silicon islands | Emerging Cross-Sectional Technologies | 101 | Expired |
| US5196910A | Semiconductor memory device with recessed array region | Electricity | 79 | Expired |
| US5346834A | Method for manufacturing a semiconductor device and a semiconductor memory device | Emerging Cross-Sectional Technologies | 79 | Expired |
| US4882289A | Method of making a semiconductor memory device with recessed array region | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5115289A | Semiconductor device and semiconductor memory device | Electricity | 56 | Expired |
| US5140389A | Semiconductor memory device having stacked capacitor cells | Electricity | 56 | Expired |
| US5194749A | Semiconductor integrated circuit device | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4918502A | Semiconductor memory having trench capacitor formed with sheath electrode | Electricity | 45 | Expired |
| US5483083A | Semiconductor integrated circuit device | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4633438A | Stacked semiconductor memory | Electricity | 40 | Expired |
| US4656607A | Electrically erasable programmable RAM | Physics | 39 | Expired |
| US4873560A | Dynamic random access memory having buried word lines | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5202275A | Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4668970A | Semiconductor device | Electricity | 25 | Expired |
| US4967247A | Vertical dynamic random access memory | Electricity | 24 | Expired |
| US5349218A | Semiconductor integrated circuit device including memory cells having a structure effective in suppression of leak current | Electricity | 22 | Expired |
| US5331191A | Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5200635A | Semiconductor device having a low-resistivity planar wiring structure | Electricity | 18 | Expired |
| US7385197B2 | Electron beam apparatus and a device manufacturing method using the same apparatus | Electricity | 17 | Active |
| US5012310A | Semiconductor memory having stacked capacitor | Electricity | 16 | Expired |
| US5780882A | Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| USRE38296E1 | Semiconductor memory device with recessed array region | General | 12 | Expired |
| US5739589A | Semiconductor integrated circuit device process for fabricating the same and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.