US Patent Issued to YAMAHA HATSUDOKI on Oct. 21 for "Individual throttle-type or unequal interval combustion-type multi-cylinder engine unit" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,930, issued on Oct. 21, was assigned to YAMAHA HATSUDOKI K.K. (Iwata, Japan).

"Individual throttle-type or unequal interval combustion-type multi-cylinder engine unit" was invented by Tatsuya Kasahara (Shizuoka, Japan), Yuta Shimizu (Shizuoka, Japan), Tatsuya Aoyama (Shizuoka, Japan), Atsushi Hirano (Shizuoka, Japan), Kazuteru Iwamoto (Shizuoka, Japan), Atsuya Hidai (Shizuoka, Japan) and Hisatoshi Kinoshita (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An engine unit, including: a plurality of cylinders respectively cooperating with a plurality of pistons; a plurality of individual exhaust pipes configured to allow exhaust gases fr...