TOKYO OHKA KOGYO CO., LTD. (TOK) developing technologies that bring the present into the future.
TOK Technologies on your side
All around us, the technologies developed by TOK, usually hidden away, quietly enrich our lives.
The World of Nanometer
In the familiar industrial products, TOK's microprocess technology plays a vital role in parts too small to be seen.More Information
TOK and the Future
TOK is determined to continue contributing to the creation of a harmonious and prosperous society in the future.More Information