ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,387, issued on Dec. 30, was assigned to Shin-Etsu Chemical Co. Ltd. (Tokyo).
"Apparatus and method for producing porous glass preform" was invented by Naoto Noda (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and an apparatus for producing a porous glass preform by using organosiloxane raw material is provided. The apparatus for producing the porous glass preform 12 according to the present embodiment is configured to mix organosiloxane in a liquid state being a raw material with a carrier gas in a vaporizer 6, heat this mixture to be vaporized, supply this vapor to a burner 13 as a gas raw material, and produce a porous gla...