ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,548, issued on May 13, was assigned to HITACHI ASTEMO LTD. (Ibaraki, Japan).
"Method for manufacturing tube body made of fiber-reinforced resin" was invented by Takahiro Nakayama (Ibaraki, Japan) and Kenichi Mori (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a tube body made of fiber-reinforced resin includes: an arranging step of arranging a fiber member on an outer peripheral surface of a mandrel made of resin by filament winding method; an inflating step of placing the mandrel with the fiber member arranged on it in a mold after the arranging step and inflating the mandrel by pressurizing an interior of...