Inventor · Yokohama, JP

Kazuhiro Shimizu

116Patents
22h-index
97Co-inventors
93Inventor score

Filing activity: Jan 19, 1995 → Nov 29, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US6342715B1 Nonvolatile semiconductor memory device Electricity 149 Expired
US6340611B1 Nonvolatile semiconductor memory device Electricity 121 Expired
US5889304A Nonvolatile semiconductor memory device Electricity 89 Expired
US6353242B1 Nonvolatile semiconductor memory Electricity 79 Expired
US6191975A Non-volatile NAND type semiconductor memory device with stacked gate memory cells and a stacked gate select transistor Electricity 71 Expired
US6160297A Semiconductor memory device having a first source line arranged between a memory cell string and bit lines in the direction crossing the bit lines and a second source line arranged in parallel to the bit lines Electricity 69 Expired
US6555427B1 Non-volatile semiconductor memory device and manufacturing method thereof Electricity 67 Expired
US6265739A Non-volatile semiconductor memory device and its manufacturing method Emerging Cross-Sectional Technologies 64 Expired
US5946230A Nonvolatile semiconductor memory device having the reliability of gate insulating film of memory cells enhanced and method for manufacturing the same Electricity 62 Expired
US5574254A Water-proof sealing structure for an electric junction box Emerging Cross-Sectional Technologies 43 Expired
US6057580A Semiconductor memory device having shallow trench isolation structure Electricity 42 Expired
US6115287A Nonvolatile semiconductor memory device using SOI Electricity 38 Expired
US6818508B2 Non-volatile semiconductor memory device and manufacturing method thereof Electricity 38 Expired
US5889310A Semiconductor device with high breakdown voltage island region Electricity 32 Expired
US6258665A Non-volatile semiconductor memory device and method for manufacturing the same Electricity 29 Expired
US6870096B2 Electrical junction box and method of manufacturing the same Electricity 29 Expired
US5894156A Semiconductor device having a high breakdown voltage isolation region Emerging Cross-Sectional Technologies 27 Expired
US5505711A Indwelling injector needle assembly having wings Human Necessities 25 Expired
US6512253B2 Nonvolatile semiconductor memory Electricity 25 Expired
US6157056A Semiconductor memory device having a plurality of memory cell transistors arranged to constitute memory cell arrays Electricity 25 Expired
US6049482A Non-volatile semiconductor memory device Physics 25 Expired
US6060740A Non-volatile semiconductor memory device and method for manufacturing the same Electricity 22 Expired
US6534867B1 Semiconductor device, semiconductor element and method for producing same Electricity 19 Expired
US6280263A Anti-rotation terminal with captured nut Electricity 18 Expired
US6828624B1 Nonvolatile semiconductor memory device covered with insulating film which is hard for an oxidizing agent to pass therethrough Emerging Cross-Sectional Technologies 17 Expired

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