US Patent Issued to TDK on March 17 for "Dielectric composition and multilayer ceramic electronic device" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,167, issued on March 17, was assigned to TDK Corp. (Tokyo).

"Dielectric composition and multilayer ceramic electronic device" was invented by Toshihiro Iguchi (Tokyo), Yuichiro Sueda (Tokyo) and Ryota Namiki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dielectric composition includes dielectric particles, grain boundary phases, and segregations. The dielectric particles each include a perovskite compound represented by ABO3 as a main component. The grain boundary phases are located between the dielectric particles. The segregations exist in a part of the grain boundary phases and include at least Al, Si, and O. A molar ratio (Al/(Al+Si))...