Inventor · Singapore, SG

Jin Ma

50Patents
2h-index
21Co-inventors
56Inventor score

Filing activity: Feb 28, 2014 → Aug 14, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US10167713B2 Optimized geosteering using real-time geological models Physics 5 Active
US10024996B2 Collocated coil antennas incorporating a symmetric soft magnetic band Fixed Constructions 3 Active
US10942288B2 Component-based look-up table calibration for modularized resistivity tool Physics 2 Active
US11125902B2 Antenna shields for co-located antennas Electricity 2 Active
US11339650B2 Compact logging while drilling look around and look ahead tool Fixed Constructions 2 Active
US10048399B2 Soft magnetic bands for tilted coil antennas Electricity 2 Active
US10436930B2 Tunable dipole moment for formation measurements Physics 2 Active
US11692437B2 Logging tool ferrites and methods of manufacture Physics 1 Active
US11035976B2 Decoupling tensor components without matrix inversion Fixed Constructions 1 Active
US10788601B2 Tunable dipole moment for formation measurements Physics 1 Active
US10641087B2 Inductive cavity sensors for resistivity tools Fixed Constructions 1 Active
US9170620B2 Power supply unit Electricity 1 Active
US11874424B2 Determining formation properties based on multi-component azimuthal measurements Physics 1 Active
US10436931B2 Electromagnetic sensor for a downhole dielectric tool Physics 1 Active
US11604304B1 In-situ calibration for multi-component signals Physics 1 Active
US11473422B2 Iterative borehole correction Physics 0 Active
US11689231B2 Corrected air-hang response using crosstalk measurement Physics 0 Active
US10935689B2 Induction transceiver with electromagnetic sensitive gap Fixed Constructions 0 Active
US9836105B2 Power off control circuit and electronic device using same Electricity 0 Active
US11898435B2 Correcting borehole images using machine-learning models Fixed Constructions 0 Active
US11320559B2 Stacked soft magnetic inserts and slotted shield designs for titled coil antennas Electricity 0 Active
US10767469B2 Transceiver with annular ring of high magnetic permeability material for enhanced short hop communications Electricity 0 Active
US11215733B2 Methods to configure a downhole electromagnetic tool and downhole electromagnetic tool calibration systems Physics 0 Active
US11953639B2 Cross-component response interpolation for coaxially oriented antennas in an electromagnetic tool Physics 0 Active
US11143023B2 Component signal decoupling for multisub resistivity tool with spaced antennas Fixed Constructions 0 Active

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