US Patent Issued to AISIN on May 26 for "Reciprocating internal combustion engine" (Japanese Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,973, issued on May 26, was assigned to AISIN Corp. (Kariya, Japan).

"Reciprocating internal combustion engine" was invented by Hiroshi Isono (Kariya, Japan) and Takeshi Hashizume (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reciprocating internal combustion engine including a planetary gear mechanism including a ring gear, a carrier rotatably supported with respect to the ring gear, and a planetary gear rotatably supported with respect to the carrier and meshes with the ring gear; a crank member coupled to rotate integrally with the planetary gear; a piston member coupled to the crank member to be relatively rotatable about an inpu...