Toshiba Corp.'s ¥152 billion ($1.2 billion) accounting scandal, caused by top executives setting unrealistic profit targets, ranks among the largest in Japanese corporate history.

An industrial group that makes everything from nuclear reactors to microchips and home appliances, Toshiba said Monday it must correct profit over more than six years, the biggest such adjustment since Olympus Corp.'s $1.7 billion accounting scandal in 2011.

Here is a list of the biggest accounting scandals in Japan.