Green Cross Corporation was acquired by Yoshitomi Pharmaceutical in 1998 , changing its name to Welfide Corporation in 2000 . The founders of Green Cross Corporation included war criminals such as Kitano Masaji who performed torture and experimentations on humans in the Japanese military 's notorious Unit 731 during World War II . These crimes were recognized by the UN as extreme " crimes against humanity "
Unit 731
Unit 731
Mitsubishi Tanabe Pharma