ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,356, issued on May 5, was assigned to Kubota Corp. (Osaka, Japan).
"Cylinder head structure" was invented by Tamon Tanaka (Sakai, Japan), Junya Ikai (Sakai, Japan), Kyota Inoue (Sakai, Japan), Atsushi Tanaka (Sakai, Japan) and Kazuyuki Chuma (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylinder head structure that can increase the rigidity of an area corresponding to an area between cylinder bores and improve a sealing force of an inter-bore corresponding portion positioned above between adjacent cylinders when enhancing the sealing force between a cylinder block and the cylinder head to improve engine output. The cylinder head struc...