Inventor · Hitachinaka, JP

Shigeru Matsui

88Patents
14h-index
64Co-inventors
87Inventor score

Filing activity: Oct 28, 1975 → Apr 24, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US7761246B2 Surface inspection method and surface inspection apparatus Physics 96 Active
US5179733A Wristwatch band with radio antenna Electricity 54 Expired
US6157444A Defect inspection apparatus for silicon wafer Physics 48 Expired
US4727325A NMR imaging method Physics 30 Expired
US4079651A Touch response sensor for an electronic musical instrument Emerging Cross-Sectional Technologies 28 Expired
US6384909B2 Defect inspection method and apparatus for silicon wafer Physics 25 Expired
US4757168A Decorative improved switching apparatus having a rocking element Electricity 24 Expired
US6256092A Defect inspection apparatus for silicon wafer Physics 19 Expired
US6160615A Surface measurement apparatus for detecting crystal defects of wafer Physics 18 Expired
US7457455B2 Pattern defect inspection method and apparatus Physics 16 Active
US5152693A Clasp to join straps containing an antenna for a portable information device Emerging Cross-Sectional Technologies 15 Expired
US6792359B2 Method for inspecting defect and system therefor Electricity 15 Expired
US6226079A Defect assessing apparatus and method, and semiconductor manufacturing method Physics 15 Expired
US6108079A Method for measuring crystal defect and equipment using the same Electricity 14 Expired
US6191849A Wafer inspecting apparatus Physics 14 Expired
US4733188A NMR imaging method Physics 13 Expired
US6118742A Disk-rotation control apparatus Physics 13 Expired
US4777443A Inspection apparatus based on nuclear magnetic resonance Physics 12 Expired
US4797616A High speed NMR spectroscopic imaging method Physics 11 Expired
US4716369A High speed imaging method with three-dimensional NMR Physics 11 Expired
US7710557B2 Surface defect inspection method and apparatus Physics 10 Active
US5557404A Spectrophotometer with a system for calibrating a monochromator Physics 10 Expired
US4625170A NMR imaging method and apparatus Physics 9 Expired
US6421308B1 State detecting device and optical disk device Physics 8 Expired
US7719669B2 Surface inspection method and surface inspection apparatus Electricity 7 Active

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