Inventor · Kuwana, JP

Natsuhiko Mori

38Patents
9h-index
51Co-inventors
78Inventor score

Filing activity: Jul 12, 1996 → Oct 18, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US6250807A Hydrodynamic type bearing and hydrodynamic type bearing unit Mechanical Engineering; Lighting; Heating 34 Expired
US6023114A Spindle motor and rotating shaft supporting device for spindle motor Mechanical Engineering; Lighting; Heating 32 Expired
US5941646A Hydrodynamic type porous oil-impregnated bearing and bearing device Emerging Cross-Sectional Technologies 28 Expired
US5762423A Bearing device, solid resin lubricating composition and porous oil-impregnated bearing Emerging Cross-Sectional Technologies 19 Expired
US6513979B2 Hydrodynamic oil-impregnated sintered bearing unit Mechanical Engineering; Lighting; Heating 19 Expired
US7059052B2 Hydrodynamic type porous oil-impregnated bearing Emerging Cross-Sectional Technologies 18 Expired
US5697709A Dynamic pressure type bearing device Emerging Cross-Sectional Technologies 17 Expired
US5704718A Sintered oil-impregnated bearing and method for manufacturing same Emerging Cross-Sectional Technologies 15 Expired
US6299356A Hydrodynamic type porous oil-impregnated bearing Emerging Cross-Sectional Technologies 10 Expired
US6712514B2 Hydrodynamic bearing unit Mechanical Engineering; Lighting; Heating 9 Expired
US6672767B2 Dynamic bearing device and motor having the same Mechanical Engineering; Lighting; Heating 7 Expired
US6843602B2 Hydrodynamic bearing unit Mechanical Engineering; Lighting; Heating 6 Expired
US6357920B1 Sintered oil retaining bearing and spindle motor for information equipment Emerging Cross-Sectional Technologies 6 Expired
US7988361B1 Hydrodynamic type oil-impregnated sintered bearing Mechanical Engineering; Lighting; Heating 4 Expired
US8926183B2 Fluid dynamic bearing device Mechanical Engineering; Lighting; Heating 3 Active
US9685708B2 Waveguide tube slot antenna and wireless device provided therewith Physics 2 Active
US9133886B2 Constant velocity universal joint Mechanical Engineering; Lighting; Heating 2 Active
US6513980B2 Hydrodynamic type porous oil-impregnated bearing Emerging Cross-Sectional Technologies 2 Expired
US8132965B2 Hydrodynamic type oil-impregnated sintered bearing Emerging Cross-Sectional Technologies 2 Active
US6533460B2 Hydrodynamic type porous oil-impregnated bearing Emerging Cross-Sectional Technologies 2 Expired
US6789320B2 Method of producing a sintered oil retaining bearing Emerging Cross-Sectional Technologies 2 Expired
US8746977B2 Slide bearing, slide bearing unit with same, and motor with the bearing unit Mechanical Engineering; Lighting; Heating 1 Active
US9634384B2 Chip antenna and manufacturing method thereof Emerging Cross-Sectional Technologies 1 Active
US8387246B2 Shaft member for fluid lubrication bearing apparatuses and a method for producing the same Emerging Cross-Sectional Technologies 1 Active
US6981797B2 Hydrodynamic bearing unit Mechanical Engineering; Lighting; Heating 1 Expired

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