US Patent Issued to AISIN on June 23 for "Valve open and close period control device" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,951, issued on June 23, was assigned to AISIN Corp. (Kariya, Japan).

"Valve open and close period control device" was invented by Yoshiaki Yamakawa (Kariya, Japan), Shoichi Yoshino (Kariya, Japan), Atsushi Nishigaki (Kariya, Japan), Kenji Ikeda (Kariya, Japan) and Yuki Nishida (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A valve open and close period control device includes: a driving-side rotor that rotates synchronously with a crankshaft of an internal combustion engine; a driven-side rotor that rotates integrally with a camshaft of the engine; and a phase adjustment mechanism that sets a relative rotation phase between the drivin...