Corporate Information
Introduction of TOKYO OHKA KOGYO CO., LTD. (TOK),
such as corporate outline, our history, and governance.

President Noriaki Taneichi delivers a message about our management principles and management policy.
Corporate outline and business details are posted.
View the Corporate Presentation video in English, Chinese, Korean, and Japanese.
Network
Corporate outline and business details are posted.
View the Corporate Presentation video in English, Chinese, Korean, and Japanese.
History
Our history of the development and progress of precision processing technologies based on photolithography.
More InformationExecutives & Corporate Auditors
Introduction of the board of directors, corporate auditors, and officers.
More InformationGovernance
We have positioned the corporate governance as one of our most important management issues.
More Information