2005 Japanese architectural forgery scandal

On November 17, 2005, the Ministry of Land, Infrastructure and Transport in Japan announced that structural engineer Hidetsugu Aneha of Aneha Architectural Design Office in Chiba Prefecture had falsified earthquake design calculations, setting off a scandal dubbed in Japanese media as the "structural calculation forgery problem" (構造計算書偽造問題, kōzō keisansho gizō mondai). A number of Japanese construction and real estate companies have had to declare bankruptcy due to their involvement in the affair, including Kimura Construction and Huser.

Source: Wikipedia — 2005 Japanese architectural forgery scandal (CC BY-SA 4.0)