US Patent Issued to NGK INSULATORS on April 21 for "Honeycomb filter" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,665, issued on April 21, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).

"Honeycomb filter" was invented by Ayumi Suzuki (Ama-Gun, Japan), Shu Muraoka (Tokai, Japan), Tetsuo Toyoshima (Nagoya, Japan) and Shinsuke Sato (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A honeycomb filter includes a pillar-shaped honeycomb substrate having a porous partition wall disposed so as to surround a plurality of cells serving as a fluid through channel extending from a first end face to a second end face; and a plugging portion provided at an open end on the first end face side or the second end face side of each of the cells, wherein the par...