A Tokyo-based company that state-certifies construction applications said Friday it noticed no problems during its examination of faked applications by a Chiba-based architectural firm.

The assertion by eHomes Ltd. follows revelation Thursday by the Land, Infrastructure and Transport Ministry that Aneha Architect Design Office submitted false data on the structural strength of the Keio Presso Inn Kayabacho in Tokyo and 20 apartment buildings in the capital, and in Chiba and Kanagawa prefectures.

The frauds committed by Aneha were exposed by a recent in-house inspection by eHomes, which said it failed to detect the false calculations as Aneha was clever in hiding the fraud.