ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,903, issued on Aug. 19, was assigned to Ricoh Co. Ltd. (Tokyo).
"Cleaning liquid for excessive powder removal, method for producing three-dimensional molded object, and set of object molding liquid and cleaning liquid" was invented by Yuki Shingai (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning liquid for excessive powder removal is provided. The cleaning liquid includes a hydrocarbon solvent having an octanol/water partition coefficient (log Pow value) of 4.5 or more. The cleaning liquid is to remove excessive powder for molding adhering to a solidified object molded using the powder for molding."
The patent was filed on...