Inventor
CHENG KA WAI ERIC
HK17 patents
⚠️ This page may combine multiple inventors who share the name “CHENG KA WAI ERIC”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV HONG KONG POLYTECHNIC
7 patentsUS7381483B2Jun 3, 2008
Core having magnetic properties
UNIV HONG KONG POLYTECHNIC9 citations80
US6853569B2Feb 8, 2005
DC to DC converter
UNIV HONG KONG POLYTECHNIC18 citations77
US10693321B2Jun 23, 2020
Inductive power transfer using diverted magnetic field
UNIV HONG KONG POLYTECHNIC2 citations67
US10418825B2Sep 17, 2019
Voltage balancing circuit
UNIV HONG KONG POLYTECHNIC2 citations67
US7675401B2Mar 9, 2010
Electronic circuit board
UNIV HONG KONG POLYTECHNIC1 citations50
US12255366B2Mar 18, 2025
Energy storage systems and ammonia-powered electric vehicles including the same
UNIV HONG KONG POLYTECHNIC0 citations40
US12334836B2Jun 17, 2025
Magnetically coupled charging system and the method thereof
UNIV HONG KONG POLYTECHNIC0 citations35
CHENG KA WAI ERIC
5 patentsUS8544580B2Oct 1, 2013
In-wheel switched reluctance motor drive
CHENG KA WAI ERIC11 citations78
US8277678B2Oct 2, 2012
Polymer-bonded magnetic materials
CHENG KA WAI ERIC14 citations74
US8833780B2Sep 16, 2014
Active suspension system and method
CHENG KA WAI ERIC5 citations70
US8217618B2Jul 10, 2012
Energy-saving controller for three-phase induction motors
CHENG KA WAI ERIC5 citations59
US8080949B2Dec 20, 2011
HID ballast with integrated voltage multiplier and lamp temperature compensation
CHENG KA WAI ERIC0 citations43
VICWOOD PROSPERITY TECH LIMITED
4 patentsUS10680530B2Jun 9, 2020
Power supply control
VICWOOD PROSPERITY TECH LIMITED2 citations67
US10819340B2Oct 27, 2020
Living body detection method and apparatus
VICWOOD PROSPERITY TECH LIMITED1 citations56
US11264987B2Mar 1, 2022
Living body detection method and apparatus
VICWOOD PROSPERITY TECH LIMITED1 citations53
US11211795B2Dec 28, 2021
Method and apparatus for load monitoring
VICWOOD PROSPERITY TECH LIMITED0 citations53