Junji Koga
23Patents
8h-index
25Co-inventors
75Inventor score
Filing activity: May 15, 1990 → Nov 13, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5936265A | Semiconductor device including a tunnel effect element | Electricity | 199 | Expired |
| US7119402B2 | Field effect transistor and manufacturing method thereof | Electricity | 124 | Expired |
| US5032891A | Semiconductor memory device and manufacturing method thereof | Emerging Cross-Sectional Technologies | 76 | Expired |
| US6680505B2 | Semiconductor storage element | Electricity | 41 | Expired |
| US7348591B2 | Switch element, memory element and magnetoresistive effect element | Emerging Cross-Sectional Technologies | 17 | Active |
| US6060748A | Semiconductor integrated circuit device using a silicon-on-insulator substrate | Electricity | 15 | Expired |
| US7514753B2 | Semiconductor device | Electricity | 11 | Active |
| US7807538B2 | Method of forming a silicide layer while applying a compressive or tensile strain to impurity layers | Electricity | 8 | Active |
| US7111029B2 | Random number generating circuit | Physics | 7 | Expired |
| US7521752B2 | Fin-type channel transistor and method of manufacturing the same | Electricity | 5 | Active |
| US7589381B2 | Field effect transistor and manufacturing method thereof | Electricity | 5 | Active |
| US7456096B2 | Method of manufacturing silicide layer for semiconductor device | Electricity | 4 | Active |
| US7977182B2 | Method of manufacturing MISFET with low contact resistance | Electricity | 4 | Active |
| US6690030B2 | Semiconductor device with negative differential resistance characteristics | Electricity | 3 | Expired |
| US7358550B2 | Field effect transistor | Electricity | 3 | Expired |
| US7569879B2 | Nonvolatile semiconductor memory device and manufacturing method thereof | Electricity | 3 | Active |
| US6787795B2 | Logic apparatus and logic circuit | Electricity | 2 | Expired |
| US8357580B2 | Semiconductor device and method of manufacturing semiconductor device | Electricity | 1 | Active |
| US7642604B2 | Semiconductor device and fabrication method of same | Electricity | 1 | Active |
| US7902612B2 | Semiconductor device and method of manufacturing the same | Electricity | 1 | Active |
| US7479674B2 | Field effect transistor | Electricity | 0 | Active |
| US8343870B2 | Semiconductor device and method of manufacturing the same | Electricity | 0 | Active |
| US7138651B2 | Logic apparatus and logic circuit | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.