Inventor · Milpitas, CA, US

Qixu Chen

37Patents
9h-index
33Co-inventors
75Inventor score

Filing activity: Jan 16, 1996 → Dec 5, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US5733370A Method of manufacturing a bicrystal cluster magnetic recording medium Physics 41 Expired
US5763071A High areal density magnetic recording medium with dual magnetic layers Emerging Cross-Sectional Technologies 33 Expired
US5879783A Low noise magnetic recording medium and method of manufacturing Emerging Cross-Sectional Technologies 28 Expired
US6010795A Magnetic recording medium comprising a nickel aluminum or iron aluminum underlayer and chromium containing intermediate layer each having (200) dominant crystalographic orientation Emerging Cross-Sectional Technologies 23 Expired
US6403241B1 CoCrPtB medium with a 1010 crystallographic orientation Emerging Cross-Sectional Technologies 19 Expired
US5866227A Magnetic recording medium with partially oxidized seed layer Emerging Cross-Sectional Technologies 14 Expired
US5830584A Bicrystal cluster magnetic recording medium Emerging Cross-Sectional Technologies 14 Expired
US6596419B1 Medium with a seed layer and a B2-structured underlayer Emerging Cross-Sectional Technologies 14 Expired
US7235314B2 Inter layers for perpendicular recording media Physics 12 Expired
US6146754A Substantially isotropic magnetic recording medium comprising a seedlayer Emerging Cross-Sectional Technologies 9 Expired
US6139951A Magnetic recording medium with low temperature seedlayer for high signal-to-noise ratio Emerging Cross-Sectional Technologies 8 Expired
US6168861A High coercivity, high signal-to-noise ratio dual magnetic layer media Emerging Cross-Sectional Technologies 8 Expired
US6759149B1 Laminated medium with antiferromagnetic stabilization layers Emerging Cross-Sectional Technologies 8 Expired
US6482301B1 Target shields for improved magnetic properties of a recording medium Electricity 8 Expired
US6132863A Magnetic recording medium with grain size control layer Emerging Cross-Sectional Technologies 7 Expired
US6242086A High coercivity, low noise magnetic recording medium comprising an intermediate cocrtaox layer Emerging Cross-Sectional Technologies 7 Expired
US5895712A Magnetic recording medium with improved coercivity Emerging Cross-Sectional Technologies 6 Expired
US6348276B1 Magnetic recording media with a surface-oxidized nial sub-seedlayer Physics 6 Expired
US6692619B1 Sputtering target and method for making composite soft magnetic films Electricity 6 Expired
US6461750B1 Magnetic recording medium with dual magnetic layers and high in-plane coercivity Emerging Cross-Sectional Technologies 5 Expired
US6218028A High coercivity magnetic recording medium comprising a sputter textured layer Emerging Cross-Sectional Technologies 4 Expired
US6346339B1 Magnetic recording media with a nialox sub-seedlayer Physics 4 Expired
US6562488B1 CoCrPtTaNbB alloy for magnetic recording medium Emerging Cross-Sectional Technologies 4 Expired
US6432562B1 Magnetic recording medium with a nialru seedlayer Emerging Cross-Sectional Technologies 4 Expired
US7247396B2 Highly oriented perpendicular magnetic recording media Emerging Cross-Sectional Technologies 4 Expired

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