ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,834, issued on Feb. 17, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Honeycomb filter" was invented by Yudai Kurimoto (Shanghai), Yasuyuki Furuta (Konan, Japan), Fumihiko Yoshioka (Novi, Mich.), Tatsuya Ohashi (Chiryu, Japan), Ayaka Sakai (Nagoya, Japan) and Ritsuko Teranishi (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround 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 ...