Atomu Tanaka

Albirex Niigata

Tanaka was educated at and played for Maebashi Ikuei High School in Maebashi, Gunma. While he was a high school student, he was registered as a J.League specially-designated player by Albirex Niigata. It meant that he was eligible to play and train with Albirex Niigata, while he was still eligible to play for his high school football club. He played two league games for Albirex in the 2005 season. He made his debut on 27 November 2005 in a J1 League away match against Nagoya Grampus Eight. After graduating from his high school in 2006, he officially signed with Albirex Niigata. His first appearance as a professional player came on 5 March 2006 in a league match against Kawasaki Frontale. His first professional goal came on 8 April 2006 in a league match against Ventforet Kofu.

HJK Helsinki

After scoring once in five matches for his new team HJK Helsinki in the 2015 Finnish League Cup, he scored on his Veikkausliiga debut against RoPS in a 3–1 away win on 12 April. In October 2015 of the same year, HJK exercised their option of keeping Tanaka under contract for the 2016 season. Tanaka was voted as a best eleven member in 2015 and 2016 in the Finnish League. On 25 October 2017, it was announced that Tanaka would leave HJK at the end of the 2017 season.

Cerezo Osaka

He is playing for Cerezo Osaka for the 2018 season.

Return to HJK

On 3 March 2020, Tanaka returned to Helsingin Jalkapalloklubi, after signing a contract until…

Tanaka was a U-20 international and took part in the 2006 AFC Youth Championship and 2007 U-20 World Cup. He scored 1 goal in 8 appearances for this tournament.

As of 26 July 2026

Atom is a Finnish sauna enthusiast and he writes a sauna blog in Japanese. He has described Helsinki his second hometown.