ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,438, issued on Sept. 9, was assigned to KURARAY Co. LTD. (Kurashiki, Japan).

"Adsorption filter" was invented by Hiroe Yoshinobu (Okayama, Japan), Tetsuya Hanamoto (Okayama, Japan) and Keita Takahashi (Okayama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adsorption filter according to the present invention is an adsorption filter including a molded body containing activated carbon and a binder. A pore volume of the adsorption filter at a pore diameter of 15 micro metre or more and 30 micro metre or less at a volume basis of the adsorption filter under measurement by mercury intrusion porosimetry is 0.06 cm3/cc to 0.30 cm3/cc."

The pate...