US Patent Issued to NGK INSULATORS on Nov. 18 for "Honeycomb filter" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,455, issued on Nov. 18, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).

"Honeycomb filter" was invented by Koichi Sendo (Nagoya, Japan), Yu Torii (Nagoya, Japan), Shuji Ueda (Nagoya, Japan) and Shungo Nagai (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed, surrounding a plurality of cells which serve as fluid through channels 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 partition wa...