TOKYO OHKA KOGYO CO., LTD. (TOK) provides chemical products, such as photoresist, and equipment for semiconductors and liquid crystal displays.

HOME Products New Business Field Materials Thin Film mmWave Absorber

New Business Field


Under the “Challenge for the Future!” slogan, TOK has set up the New Business Development Dept. combined sales and technical division.
TOK offers unique and high value-added materials ,using our functional polymer design/manufacturing technologies cultivated in photolithography field, through open innovation with our customers and third parties.

Thin Film mmWave Absorber


  • High Performance with less than 300 nm thick film
  • Resonance frequency controllable (35~222 GHz)
  • Good for space & weight saving
  • Heat dissipation type available
  • This product was developed in collaboration with Prof. Shin-ichi Ohkoshi of the University of Tokyo.
mmwave _2



Work Example: Film type



Protection from un-wanted mmWave noise for your devices

  • mmWave radars
  • Wireless communication devices

Heat dissipation type


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HOME Products New Business Field Materials Thin Film mmWave Absorber