US Patent Issued to MITSUBISHI ELECTRIC on May 6 for "Insulating varnish composition, rotating machine coil and rotating machine" (Japanese Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,616, issued on May 6, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Insulating varnish composition, rotating machine coil and rotating machine" was invented by Takahiro Mabuchi (Tokyo) and Xiaohong Yin (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an insulating varnish composition, including: two or more kinds of epoxy resins; and a filler having an average primary particle diameter of 500 nm or less, wherein the two or more kinds of epoxy resins contain 80 mass % or more of an epoxy resin having a number of repetitions of 0 in a molecular structural formula thereof with respect to a total mass of the two or more kinds of e...