US Patent Issued to Hitachi Astemo on Feb. 17 for "Shock absorber and method for manufacturing shock absorber" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,143, issued on Feb. 17, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Shock absorber and method for manufacturing shock absorber" was invented by Toshinori Kawamura (Tokyo), Hiroshi Kanemoto (Tokyo), Hiroshi Nakano (Hitachinaka, Japan) and Akihito Hoshino (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a shock absorber in which trivalent chromium is used to achieve both high hardness and low frictional force at a high level without using hexavalent chromium which is suspected of causing damage to the human body and the environment, and a method for manufacturing the shock absorber.A shock absorber (100) of...