US Patent Issued to Mazda Motor on Jan. 20 for "Exhaust purification device" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,049, issued on Jan. 20, was assigned to Mazda Motor Corp. (Hiroshima, Japan).

"Exhaust purification device" was invented by Yuki Matsumoto (Hiroshima, Japan), Hiroshi Yamada (Hiroshima, Japan), Nozomi Yasui (Hiroshima, Japan) and Koichiro Harada (Hiroshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exhaust purification device includes: a filter including an oxygen storage capacity (OSC) material; a secondary air supply passage connected to the exhaust passage upstream of the filter; a secondary air control valve disposed in the secondary air supply passage and configured to provide periodicity to secondary air supplied to the secondary...