ALEXANDRIA, Va., June 9 -- United States Patent no. 12,652,755, issued on June 9, was assigned to IBIDEN Co. Ltd. (Ogaki, Japan).
"Printed wiring board" was invented by Susumu Kagohashi (Ogaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A printed wiring board includes a first conductor layer, a resin insulating layer formed on the first conductor layer, a second conductor layer formed on a surface of the resin insulating layer, and a via conductor formed in an opening formed in the resin insulating layer such that the via conductor is connecting the first conductor layer and the second conductor layer. The via conductor is formed such that the via conductor includes a seed layer covering an inner w...