ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,645, issued on July 15, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Fuel injection device" was invented by Takuya Watai (Hitachinaka, Japan), Takao Miyake (Hitachinaka, Japan), Taisuke Sugii (Tokyo) and Masashi Sugaya (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel injection device includes a nozzle element, an injection hole forming member, and a valve element. The injection hole forming member includes a seat part having the seat surface, and a suck chamber formed on a front end part of the seat part, the suck chamber being a recess denting in the direction of heading from the seat surface toward a front en...