ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,338, issued on March 31, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).

"Filter and filter device" was invented by Seiji Kamba (Nagaokakyo, Japan) and Takashi Kondo (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filter that includes a filter base portion having a first main surface and a second main surface opposite to the first main surface, the filter base portion defining multiple first through-holes and one or multiple second through-holes penetrating between the first main surface and the second main surface, the one or multiple second through-holes being larger in size than the multiple first through-h...