US Patent Issued to TOYOTA BOSHOKU, KANTO YAKIN KOGYO on May 20 for "Heat treatment method and heat treatment furnace" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,248, issued on May 20, was assigned to TOYOTA BOSHOKU K.K. (Kariya, Japan) and KANTO YAKIN KOGYO Co. LTD. (Hiratsuka, Japan).

"Heat treatment method and heat treatment furnace" was invented by Masaki Sugiyama (Kariya, Japan), Shinichi Takahashi (Hiratsuka, Japan), Kensuke Takahashi (Hiratsuka, Japan) and Kosuke Takahara (Hiratsuka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a heat treatment method and a heat treatment furnace that enable characteristics on an equal level to those when bluing processing is performed to be obtained without the bluing processing being performed in stress-relief annealing of a...