Nibs TRIZ Cases

Small additions of Sn, Fe, Ni, and Si replace lead in brass tip alloys, preserving machinability and corrosion resistance for mass production.

Varying nib porosity controls ink flow to create gradient tones, overcoming the inability of single-component nibs to generate complex shading effects.

Stabilized zirconium dioxide writing ball resists water-based inks, avoiding cobalt toxicity and high energy costs.