US Patent 7133589 Tape fiber and method for treating same

A tape-like optical fiber cable comprises a plurality of optical fibers arranged in parallel to each other and each abutted to an adjacent fiber. Each of the optical fibers includes a cover and a lead extending therefrom. A method of forming an inclined surface at a terminal face of each lead comprises the steps of: pushing the respective leads of the optical fibers in parallel and together toward a grinding surface of a grinding means while moving in a certain direction so that terminal portions of the respective leads are simultaneously resiliently bent to form an inclined surfaces at the terminal faces of the respective leads.