ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,306, issued on Jan. 13, was assigned to DENSO Corp. (Kariya, Japan).

"Valve device" was invented by Ryo Sano (Kariya, Japan), Shota Kimura (Kariya, Japan) and Takehito Mizunuma (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a valve device, a housing has a mounting portion that contacts a back surface of a stationary disk which is opposite to a contact surface of the stationary disk while the contact surface is opposed to a rotor. One of the stationary disk and the mounting portion has a receiving groove that receives a gasket which seals a gap between the stationary disk and the mounting portion. The gasket has: two seal surfaces t...