ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,027, issued on Nov. 4, was assigned to W. L. Gore & Associates G.K. (Tokyo).
"Fine filters and methods for making the same" was invented by Tomoka Ogura (Tokyo) and Hidesato Mano (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The objective of the present invention is to provide a precision filter which is suitable for filtering a circuit board production process liquid, which is extremely excellent in the resistance to both a strongly acidic cleaning liquid and a strongly alkaline cleaning liquid and which is extremely excellent in the capability of removing an extremely fine foreign substance. Also, the objective of the present invention is t...