US Patent Issued to Kobe Steel on March 18 for "Automotive door beam made of aluminum alloy extruded material" (Japanese Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,765, issued on March 18, was assigned to Kobe Steel Ltd. (Kobe, Japan).

"Automotive door beam made of aluminum alloy extruded material" was invented by Takahiro Shikama (Yamaguchi, Japan), Shinji Yoshihara (Yamaguchi, Japan), Misuzu Yamamoto (Yamaguchi, Japan), Yuki Tanaka (Hyogo, Japan), Ryo Unoki (Hyogo, Japan) and Takahiro Ozawa (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A door beam of a motor vehicle includes a 7000 series aluminum alloy extruded material, the 7000 series aluminum alloy extruded material including Zn: 7.5 mass % to 9.0 mass %, Mg: 1.3 mass % to 2.0 mass %, Cu: 0.1 mass % to 0.7 mass %, Si: 0.15 mass % or less,...