Katsuno is a graduate of Gifu Prefectural Toki Commercial High School and played for the industrial league team, Mitsubishi Heavy Industries, Nagoya where he led his team to their first All-Japan Championship in 2018.

[1] He was also selected in the all industrial league Japanese representative team at the 2018 Asian Games.

[2] On 25 October 2018, Katsuno was selected as the 3rd draft pick for the Chunichi Dragons at the 2018 NPB Draft and on 21 November signed a provisional contract with a ¥65,000,000 sign-on bonus and a ¥12,000,000 yearly salary.

[3] He was presented with the number 41 jersey previously worn by 2011 MVP winning reliever, Takuya Asao.

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