US Patent Issued to IDEMITSU KOSAN on July 14 for "Radio wave absorber, radio wave absorption structure including radio wave absorber, and composition for radio wave absorber" (Japanese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,290, issued on July 14, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Radio wave absorber, radio wave absorption structure including radio wave absorber, and composition for radio wave absorber" was invented by Hirofumi Kondo (Chiyoda-ku, Japan) and Kotaro Kajikawa (Chiyoda-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radio wave absorber comprising a resin and a carbon fiber, wherein 60 to 90% by volume of the total carbon fiber is present in a region from the first surface of the radio wave absorber to half of the total thickness of the radio wave absorber."

The patent was filed on April 25, 2023, under Application No. 18/864,202...