In September 2012 the Japan Anti-Doping Agency (JADA) has reported an anti-doping rule violation against the Athlete J-4136 (the Athlete) after his sample tested positive for the prohibited substance 19-norandrosterone. After notification a provisional suspension was ordered. The Athlete filed a statement in his defence and he was heard for the Japan Anti-Doping Disciplinary Panel.
The Athlete stated that he has used non prescribed supplements purchased overseas on the internet.
With significant fault or negligence the Japan Anti-Doping Disciplinary Panel decides on 4 October 2012 to impose a 2 year period of ineligibility on the Athlete starting on the date of the provisional suspension, i.e. on 27 September 2012.
