ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,673, issued on Oct. 27, was assigned to SUZUKI MOTOR Corp. (Hamamatsu, Japan).
"Outboard-motor cylinder block and manufacturing method therefor" was invented by Haruhiko Murakami (Hamamatsu, Japan) and Tomoya Matsubara (Hamamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "After an anodized film is formed on the surface of an aluminum alloy part of an outboard-motor cylinder block body other than cylinder bores, sealing treatment is performed on the surface of the anodized film and finishing processing of removing the anodized film on a joining surface to expose the aluminum alloy is performed, and then a chemical conversion coating film i...