ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,719, issued on March 3, was assigned to TORAY INDUSTRIES Inc. (Tokyo).
"Carbon fiber and method of manufacturing same" was invented by Haruki Okuda (Iyo-gun, Japan) and Fumihiko Tanaka (Iyo-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A carbon fiber includes single fibers having lengths of 10 cm or less, a fiber axis of each single fiber having an undulation width of 2.5 micro metre or more when a part thereof between two points with a straight-line distance of 1 mm is observed from a lateral direction, and a coefficient of variation in the undulation width being 100% or less. A method of producing carbon fiber production includes perfo...