US Patent Issued to Kubota on Sept. 22 for "Tractor" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,740,498, issued on Sept. 22, was assigned to Kubota Corp. (Osaka, Japan).

"Tractor" was invented by Takashi Sawai (Sakai, Japan), Norita Tottori (Sakai, Japan), Katsumi Yanagihara (Sakai, Japan), Kazuya Kiyama (Sakai, Japan), Hiroyuki Kawamura (Sakai, Japan), Shinichiro Minami (Sakai, Japan), Ryo Kumai (Sakai, Japan) and Mami Fujii (Sakai, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tractor includes a hydraulic lifting and lowering driver to lift and lower a three-point linkage, a load detector to swing according to a traction load of an implement, and a mechanical linkage to transmit a swing amount of the load detector to the lifting and lo...