ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,438, issued on Sept. 23, was assigned to DENKA COMPANY Ltd. (Tokyo).
"Alumina powder, resin composition, and heat dissipation component" was invented by Takafumi Komaki (Tokyo), Junya Nitta (Tokyo), Yoshiaki Okamoto (Tokyo), Masakazu Hirata (Tokyo) and Genta Karino (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The alumina powder contains: a first alumina particle having an average particle diameter of 0.1 micro metre or more and less than 1 micro metre; a second alumina particle having an average particle diameter of 1 micro metre or more and less than 10 micro metre; and a third alumina particle having an average particle diameter of 10 mi...