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

HOME Products New Business Field Materials Hydrophilic Coating Materials

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.

Hydrophilic Coating Materials

Hydrophilicity can be applied to high contact angle substrates without pretreatment



Plastics(PET, PS, PMMA, PP, COC, COP), Glass, Si wafer, SUS etc.


  • No pretreatment is required for high contact angle substrates
  • Excellent optical property
  • Ultra-thin film (< 2nm) with conformal coating
  • Low cytotoxicity※
  • Excellent weather resistance and chemical resistance.

※Cytotoxicity was tested according to the ISO 10993-5 standard. IC50 (50% inhibitory concentration) : >100%

How to use



Lifescience(Microfluidics etc.), Optics, etc.


Cell adhesion Control

Evaluation condition

24well plate, Culture medium : DMEM (10%FBS, 1% Antibiotic addition)
Seeding density: 3.3 x 104 cells/well, Observation: 5 hours after seeding (37˚C, 5% CO2)



Related Materials


Product Inquiry

Get information about our products and others.
Fill in the information below along with your inquiry. Our representative will be in touch with you.

*We will respond via email as soon as possible.

HOME Products New Business Field Materials Hydrophilic Coating Materials