Inventor · Tokyo, JP

Tetsuya Ishimaru

43Patents
9h-index
38Co-inventors
75Inventor score

Filing activity: Dec 24, 2003 → Nov 27, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7504689B2 Semiconductor device and manufacturing method of semiconductor device Electricity 51 Expired
US6972997B2 Nonvolatile semiconductor memory device Electricity 34 Expired
US7667259B2 Non-volatile semiconductor device and method of fabricating embedded non-volatile semiconductor memory device with sidewall gate Physics 30 Active
US8125012B2 Non-volatile memory device with a silicon nitride charge holding film having an excess of silicon Emerging Cross-Sectional Technologies 20 Active
US7286401B2 Nonvolatile semiconductor memory device Physics 18 Expired
US8054680B2 Semiconductor device Physics 18 Expired
US7130223B2 Nonvolatile semiconductor memory device Electricity 15 Expired
US7915666B2 Nonvolatile semiconductor memory devices with charge injection corner Electricity 14 Active
US7872298B2 Split-gate type memory device Physics 14 Active
US7085157B2 Nonvolatile memory device and semiconductor device Physics 7 Expired
US7863131B2 Semiconductor device and manufacturing method for semiconductor device to reduce the lithography masks Physics 7 Active
US8076709B2 Nonvolatile semiconductor memory device Electricity 7 Active
US7935597B2 Semiconductor device and manufacturing method of the same Physics 7 Active
US7212444B2 Semiconductor nonvolatile memory device Physics 5 Expired
US8390053B2 Nonvolatile semiconductor device including a field effect transistor having a charge storage layer of predetermined length Electricity 5 Active
US7529126B2 Nonvolatile memory device and semiconductor device Physics 5 Active
US7709315B2 Semiconductor device and method of manufacturing the same Electricity 5 Active
US10079536B2 Rectifier, alternator using same and power supply using same Emerging Cross-Sectional Technologies 4 Active
US8063433B2 Nonvolatile semiconductor memory device Electricity 3 Active
US9831145B2 Semiconductor device, and alternator and power converter using the semiconductor device Electricity 3 Active
US7847343B2 Semiconductor device and manufacturing method of semiconductor device Electricity 3 Active
US7847331B2 Nonvolatile semiconductor memory device Electricity 3 Expired
US9966871B2 Rectification device, alternator, and power conversion device Emerging Cross-Sectional Technologies 2 Active
US10304761B2 Semiconductor device and alternator using same Electricity 2 Active
US8324092B2 Non-volatile semiconductor device and method of fabricating embedded non-volatile semiconductor memory device with sidewall gate Physics 2 Active

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