US Patent Issued to HANON SYSTEMS on Feb. 3 for "Varnish impregnation method of stator coil winding" (South Korean Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,473, issued on Feb. 3, was assigned to HANON SYSTEMS (Daejeon, South Korea).

"Varnish impregnation method of stator coil winding" was invented by Min Hwan Kim (Daejeon, South Korea), Sung Moon Kang (Gwangju, South Korea), Young Ki Kim (Gwangju, South Korea) and Chan Ho Baek (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A varnish impregnation method of a stator coil winding. The varnish impregnation method includes: a first step of maintaining an inside of a vacuum chamber to be in a vacuum state; a second step of injecting varnish into a slot of a stator core through a varnish supply hole formed in a lower housing of the varnis...