Inventor
LIANG QINGNING
CN13 patents
⚠️ This page may combine multiple inventors who share the name “LIANG QINGNING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HAIHONG ELECTRIC CO LTD
12 patentsUS12106894B2Oct 1, 2024
Winding die
HAIHONG ELECTRIC CO LTD2 citations67
US9991042B2Jun 5, 2018
Fixing structure for upper pressing blocks of stereoscopic wound core open-ventilated dry-type transformer
HAIHONG ELECTRIC CO LTD2 citations67
US11295889B2Apr 5, 2022
Pulling plate structure for a three-dimensional wound core of transformer
HAIHONG ELECTRIC CO LTD0 citations57
US12400787B2Aug 26, 2025
Waterproof transformer coil structure and manufacturing method thereof
HAIHONG ELECTRIC CO LTD0 citations52
US12266471B2Apr 1, 2025
Method and device for winding foil coil of stereoscopic wound iron core transformer
HAIHONG ELECTRIC CO LTD0 citations46
US11315722B2Apr 26, 2022
Low-voltage lead structure for three-dimensional wound core of transformer
HAIHONG ELECTRIC CO LTD0 citations46
US10818425B2Oct 27, 2020
High-voltage lead structure for three-dimensional wound core of transformer
HAIHONG ELECTRIC CO LTD0 citations46
US12249456B2Mar 11, 2025
Winding cylinder of stereoscopic wound iron core transformer
HAIHONG ELECTRIC CO LTD0 citations45
US12183506B2Dec 31, 2024
Winding method for foil coil
HAIHONG ELECTRIC CO LTD0 citations41
US10361029B2Jul 23, 2019
Paint immersing process for insulating paper
HAIHONG ELECTRIC CO LTD0 citations37
US9786427B2Oct 10, 2017
Coil structure of open ventilated type stereoscopic wound-core dry-type transformer
HAIHONG ELECTRIC CO LTD0 citations37
US10056189B2Aug 21, 2018
High voltage wire leading method for stereoscopic wound core open ventilated dry-type transformer
HAIHONG ELECTRIC CO LTD0 citations35