ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,711, issued on Dec. 23, was assigned to Ricoh Co. Ltd. (Tokyo).
"Lamination fabricating method" was invented by Yasuyuki Yamashita (Kanagawa, Japan) and Hisataka Takagi (Telford England, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lamination fabricating method includes forming a powder layer including a powder for three-dimensional fabrication, applying a fabrication liquid to the powder layer, repeating the forming of the powder layer and the forming the powder layer to form a fabricated object, and forming a base layer prior to the forming of the powder layer. A powder filling rate of the base layer is higher than a powder filli...