Inventor · Chadds Ford, PA, US

Mamoru Murakami

23Patents
6h-index
27Co-inventors
69Inventor score

Filing activity: Nov 12, 1980 → Aug 20, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US4340282A Lens securing device Physics 36 Expired
US5966067A Thick film resistor and the manufacturing method thereof Electricity 20 Expired
US6848555B2 Electronic controlled coupling Mechanical Engineering; Lighting; Heating 17 Expired
US6520293B1 Oil circulating apparatus for automatic transmission Emerging Cross-Sectional Technologies 15 Expired
US8961346B2 Damper device Mechanical Engineering; Lighting; Heating 8 Active
US7032699B2 Drive transmission apparatus for vehicle and a four-wheel drive vehicle Mechanical Engineering; Lighting; Heating 8 Expired
US7361117B2 Differential limiter Mechanical Engineering; Lighting; Heating 6 Active
US7044878B2 Differential rotation control apparatus for vehicle Mechanical Engineering; Lighting; Heating 3 Expired
US10115505B2 Chip resistor Electricity 3 Active
US7029415B2 Differential apparatus Mechanical Engineering; Lighting; Heating 3 Expired
US9234562B2 Damper device Mechanical Engineering; Lighting; Heating 2 Active
US10704679B2 Hydraulic control device Mechanical Engineering; Lighting; Heating 2 Active
US9163696B2 Damper device Mechanical Engineering; Lighting; Heating 2 Active
US11448299B2 Drive apparatus for four-wheel drive vehicle Mechanical Engineering; Lighting; Heating 1 Active
US7553252B2 Differential unit with limited slip differential mechanism Mechanical Engineering; Lighting; Heating 1 Active
US9561440B2 Gaming device implementing a cooperative battle game in which the quantity of players of a group of players are managed based on mission success rates Human Necessities 0 Active
US11479118B2 Drive apparatus for electric-motor four-wheel drive vehicle Performing Operations; Transporting 0 Active
US11273706B2 Drive device for four-wheel drive vehicle Emerging Cross-Sectional Technologies 0 Active
US9752646B2 Damper device Mechanical Engineering; Lighting; Heating 0 Active
US10907732B2 Shift control device Mechanical Engineering; Lighting; Heating 0 Active
US11433766B2 Driving device of electric-motor four-wheel drive vehicle Performing Operations; Transporting 0 Active
US11268621B2 Hydraulic control apparatus Emerging Cross-Sectional Technologies 0 Active
US10591052B2 Shift control device Mechanical Engineering; Lighting; Heating 0 Active

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