Inventor · Musashimurayama, JP

Katsuhiro Shimohigashi

60Patents
25h-index
79Co-inventors
91Inventor score

Filing activity: Oct 9, 1973 → Mar 4, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US5170374A Semiconductor memory Electricity 321 Expired
US4661929A Semiconductor memory having multiple level storage structure Physics 176 Expired
US4455495A Programmable semiconductor integrated circuitry including a programming semiconductor element Electricity 111 Expired
US4701884A Semiconductor memory for serial data access Electricity 102 Expired
US5629898A Dynamic memory device, a memory module, and a method of refreshing a dynamic memory device Physics 82 Expired
US5550781A Semiconductor apparatus with two activating modes of different number of selected word lines at refreshing Physics 71 Expired
US4992677A High speed MOSFET output buffer with low noise Electricity 61 Expired
US5386135A Semiconductor CMOS memory device with separately biased wells Emerging Cross-Sectional Technologies 56 Expired
US4894696A Dynamic random access memory having a trench capacitor Emerging Cross-Sectional Technologies 54 Expired
US4811299A Dynamic RAM device having a separate test mode capability Physics 51 Expired
US4726021A Semiconductor memory having error correcting means Physics 49 Expired
US5126974A Sense amplifier for a memory device Physics 44 Expired
US4805147A Stacked static random access memory cell having capacitor Emerging Cross-Sectional Technologies 41 Expired
US4709350A Semiconductor memory using multiple level storage structure Physics 41 Expired
US5132771A Semiconductor memory device having flip-flop circuits Emerging Cross-Sectional Technologies 40 Expired
US5497023A Semiconductor memory device having separately biased wells for isolation Emerging Cross-Sectional Technologies 39 Expired
US4672586A Semiconductor memory having circuit effecting refresh on variable cycles Physics 35 Expired
US4656492A Insulated gate field effect transistor Electricity 34 Expired
US5148255A Semiconductor memory device Electricity 34 Expired
US6740958B2 Semiconductor memory device Electricity 32 Expired
US4849801A Semiconductor memory device having increased capacitance for the storing nodes of the memory cells Emerging Cross-Sectional Technologies 30 Expired
US4930112A Semiconductor device having a voltage limiter Physics 29 Expired
US4992985A Method for selectively initiating/terminating a test mode in an address multiplexed DRAM and address multiplexed DRAM having such a capability Physics 26 Expired
US4747082A Semiconductor memory with automatic refresh means Physics 26 Expired
US5324982A Semiconductor memory device having bipolar transistor and structure to avoid soft error Emerging Cross-Sectional Technologies 26 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.