ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,620, issued on Aug. 5, was assigned to AISIN Corp. (Aichi, Japan).
"Quenching method" was invented by Koji Obayashi (Kariya, Japan), Daisuke Kasai (Kariya, Japan), Keisuke Matsuzaka (Kariya, Japan), Takeshi Naito (Yokohama, Japan), Takeshi Ryujin (Anjo, Japan) and Toshiaki Matsumura (Anjo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for executing a quenching method in which an object to be treated that is a quenching target is cooled with a quenching coolant that is a coolant for quenching, in which the object to be treated is moved inside the quenching coolant accumulated in a cooling tank, by a moving device for moving...