Inventor
CHA ELLIS
US36 patents
⚠️ This page may combine multiple inventors who share the name “CHA ELLIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAE MAGNETICS HK LTD
27 patentsUS7391594B2Jun 24, 2008
Apparatus for providing an additional ground pad and electrical connection for grounding a magnetic recording head
SAE MAGNETICS HK LTD46 citations95
US7064928B2Jun 20, 2006
Method and apparatus for providing an additional ground pad and electrical connection for grounding a magnetic recording head
SAE MAGNETICS HK LTD62 citations95
US7357875B2Apr 15, 2008
Hybrid coating for magnetic heads
SAE MAGNETICS HK LTD9 citations84
US7327535B2Feb 5, 2008
Hybrid coating for magnetic heads
SAE MAGNETICS HK LTD12 citations84
US7042670B2May 9, 2006
Method for adjusting flying height of magnetic heads using an electrical charge through an electrical pad on the slider
SAE MAGNETICS HK LTD14 citations84
US8976481B1Mar 10, 2015
Touch down detection with HDI sensor DC mode
SAE MAGNETICS HK LTD16 citations82
US7969685B2Jun 28, 2011
ABS design for dynamic flying height (DFH) applications
SAE MAGNETICS HK LTD9 citations82
US8576671B1Nov 5, 2013
ABS design with multiple heaters
SAE MAGNETICS HK LTD8 citations80
US7961433B2Jun 14, 2011
Air-bearing design for hard disk drive (HDD) applications
SAE MAGNETICS HK LTD17 citations79
US9940960B2Apr 10, 2018
Air-bearing design for hydrocarbon and lube pick-up improvements in hard disk drive (HDD)
SAE MAGNETICS HK LTD7 citations77
US7701672B2Apr 20, 2010
Suspension with locally stiffened load beam
SAE MAGNETICS HK LTD7 citations73
US7684154B2Mar 23, 2010
Suspension gimbal designs with better dynamic performances
SAE MAGNETICS HK LTD6 citations73
US11232812B1Jan 25, 2022
Air-bearing surface (ABS) design with side flow blocker for mitigating lube and hydrocarbon accumulation in hard disk drives (HDD)
SAE MAGNETICS HK LTD2 citations72
US11211084B1Dec 28, 2021
Protective shields under touchdown conditions for thermally assisted perpendicular magnetic recording
SAE MAGNETICS HK LTD2 citations72
US10629233B1Apr 21, 2020
Bumper pad design for TAMR drives
SAE MAGNETICS HK LTD2 citations72
US9892746B1Feb 13, 2018
ABS design with soft bumper pads (SBP) for mitigating media damage and thermal erasure in hard disk drives (HDD)
SAE MAGNETICS HK LTD5 citations72
US10679653B1Jun 9, 2020
High power ratio mode for TAMR drives
SAE MAGNETICS HK LTD4 citations71
US10811046B2Oct 20, 2020
Air-bearing surface (ABS) design to reduce particle scratch risk
SAE MAGNETICS HK LTD3 citations68
US8054585B2Nov 8, 2011
Gimbal with assymmetric dynamic stiffness
SAE MAGNETICS HK LTD6 citations63
US7675711B2Mar 9, 2010
Measuring and neutralizing the electrical charge at the interface of a magnetic head and media
SAE MAGNETICS HK LTD2 citations63
US7468196B2Dec 23, 2008
Measuring and neutralizing the electrical charge at the interface of a magnetic head and media
SAE MAGNETICS HK LTD4 citations63
US10839843B1Nov 17, 2020
TD detection with enhanced HDIs signal
SAE MAGNETICS HK LTD1 citations61
US7433156B2Oct 7, 2008
Flexure for minimizing fly height modulation of near-contact recording sliders in a disk drive
SAE MAGNETICS HK LTD3 citations59
US11114121B2Sep 7, 2021
Air-bearing surface (ABS) design to reduce particle scratch risk
SAE MAGNETICS HK LTD1 citations57
US8000061B2Aug 16, 2011
Gimbal mounted slider assembly with transverse bars connecting inner edges of ramp limiter arms
SAE MAGNETICS HK LTD1 citations52
US12387750B1Aug 12, 2025
DFH heater design
SAE MAGNETICS HK LTD0 citations51
US7894162B2Feb 22, 2011
Method to protect the magnetic recording head from thermal asperities during disk drive operation
SAE MAGNETICS HK LTD3 citations51