Inventor
SONG DANJU
CN7 patents
⚠️ This page may combine multiple inventors who share the name “SONG DANJU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HAIHONG ELECTRIC CO LTD
6 patentsUS12106894B2Oct 1, 2024
Winding die
HAIHONG ELECTRIC CO LTD2 citations67
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
US12249456B2Mar 11, 2025
Winding cylinder of stereoscopic wound iron core transformer
HAIHONG ELECTRIC CO LTD0 citations45
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