Takayuki Kawahara
133Patents
26h-index
102Co-inventors
93Inventor score
Filing activity: Jul 18, 1986 → Oct 2, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5583457A | Semiconductor integrated circuit device having power reduction mechanism | Electricity | 172 | Expired |
| US4999519A | Semiconductor circuit with low power consumption having emitter-coupled logic or differential amplifier | Electricity | 131 | Expired |
| US7498637B2 | Semiconductor memory | Electricity | 116 | Active |
| US7808045B2 | Semiconductor device and semiconductor integrated circuit using the same | Electricity | 111 | Active |
| US5426603A | Dynamic RAM and information processing system using the same | Physics | 110 | Expired |
| US7336526B2 | Semiconductor device | Physics | 97 | Expired |
| US5274601A | Semiconductor integrated circuit having a stand-by current reducing circuit | Physics | 90 | Expired |
| US5614847A | Semiconductor integrated circuit device having power reduction mechanism | Electricity | 87 | Expired |
| US6091640A | Semiconductor integrated circuit with multiple write operation modes | Physics | 85 | Expired |
| US6285597A | Semiconductor integrated circuit and data processing system | Physics | 65 | Expired |
| US5870218A | Nonvolatile semiconductor memory device which stores multi-value information | Physics | 62 | Expired |
| US6785165B2 | Semiconductor device | Electricity | 56 | Expired |
| US6496418B2 | Semiconductor integrated circuit and data processing system | Physics | 55 | Expired |
| US6134148A | Semiconductor integrated circuit and data processing system | Physics | 52 | Expired |
| US5880604A | Semiconductor integrated circuit device having power reduction mechanism | Electricity | 50 | Expired |
| US5197033A | Semiconductor device incorporating internal power supply for compensating for deviation in operating condition and fabrication process conditions | Electricity | 46 | Expired |
| US4730132A | Semiconductor device having bipolar transistor and insulated gate field effect transistor with two potential power source | Electricity | 44 | Expired |
| US5982667A | Nonvolatile semiconductor memory device for storing multivalue information by controlling erase and plural write states of each memory cell | Physics | 39 | Expired |
| US9257483B2 | Magnetic memory, method of manufacturing the same, and method of driving the same | Electricity | 36 | Active |
| US4984202A | Low voltage-operated semiconductor integrated circuit | Physics | 36 | Expired |
| US5086238A | Semiconductor supply incorporating internal power supply for compensating for deviation in operating condition and fabrication process conditions | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5386394A | Semiconductor memory device for performing parallel operations on hierarchical data lines | Physics | 32 | Expired |
| US5256504A | Monaqueous electrolyte secondary batteries | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6459621B1 | Semiconductor integrated circuit and data processing system | Physics | 29 | Expired |
| US6026014A | Nonvolatile semiconductor memory and read method | Physics | 28 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.