ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,440, issued on May 20, was assigned to MAZDA MOTOR Corp. (Hiroshima, Japan).
"Wheelchair" was invented by Takashi Iwase (Hiroshima, Japan), Isao Toda (Hiroshima, Japan) and Yu-chao Wei (Changhua County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is an object to improve riding comfort of a wheelchair having a folding mechanism by keeping an operation part of the folding mechanism from contacting a wheelchair user seated. A folding mechanism includes an operation part for use in changing a state of a left-side support arm and a right-side support arm from one of a folded state or an unfolded state to another. The operation part is arrang...