ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,164, issued on May 13, was assigned to HITACHI ASTEMO LTD. (Hitachinaka, Japan).
"Physical quantity detection device" was invented by Yuki Isoya (Hitachinaka, Japan) and Hiroaki Hoshika (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is possible to reduce a degradation in accuracy after switching of a heating state or after change of the flow rate.A physical quantity detection device includes a flow rate measuring element which is equipped with a heating element and measures a flow rate of a measurement target fluid; a heating element control unit which switches a control state of the heating element to one of a heat generation...