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Proprietary In-mold Technology

Eliminating retardation
of molded products

As transparent panels become larger, manufacturers are switching from flat-plate construction to molding. When the molding process involves injecting pre-melted polycarbonate into the mold, retardation (polarization distortion) of these transparent panels is unavoidable.
Drawing on our in-depth knowledge of plastic molding, YOSHIDA TECHNOWORKS has developed a special technique for minimizing this retardation. We can help you find the optimal solution for eliminating retardation based on your resin type and the size and shape of your panels.



  • Pre-elimination of retardation
  • Post-elimination of retardation
YOSHIDA has mass-produced automotive touch screen cover panels
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