Inventor · Higashiyamato, JP

Takayuki Kawahara

133Patents
26h-index
102Co-inventors
93Inventor score

Filing activity: Jul 18, 1986 → Oct 2, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
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.