ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,963, issued on Jan. 13, was assigned to Suzuki Manufacturing Ltd. (Yamagata, Japan).
"Sewing machine" was invented by Tohru Sakuma (Yamagata, Japan) and Mitsuru Sato (Yamagata, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The sewing machine includes: a presser foot 1 which holds down a fabric on a throat plate 18; a presser holder 8 which supports the presser foot 1; a rotatable spreader 3 having a thread hole 14 through which sewing thread vertically passes; a spreader drive mechanism 4 which drives the rotation of the spreader 3; a reciprocating motion conversion mechanism 5 which converts the rotation of an upper shaft 7 into a linear rec...