After nine consecutive wins for Takeshi Inoue, he got a title shot for the vacant Japanese Boxing Commission Super Welterweight title against a more experienced Koshinmaru Saito at Korakuen Hall, in the seventh round Takeshi Inoue knocked Saito down and Saito didn't get to escape the ten-second count, Leading to Takeshi Inoue to be the new Japanese Boxing Commission Super Welterweight Champion.
On November 10, 2017, after defending his Japanese Boxing Commission Super Welterweight title, Inoue took the then OPBF Super Welterweight champion Thai boxer, Niwat Kongkan, for not only the OPBF title, but also for the WBO Asia Pacific Super Welterweight title, where Inoue won via eighth round TKO, just when the round was about to end.
[3] After losing to Jaime Munguía, Inoue made a comeback against the Thai, Komsan Polsan, to try and get the WBO Asia Pacific Super Welterweight title back, which was vacant before the fight, The match ended fast, with Inoue winning via second round KO.
After winning a non-title match after his fight against Komsan Polsan, Inoue was to face the Hard-hitting southpaw Chinese boxer, Cheng Su for the WBO Asia Pacific title, where the match went to a second round RTD win for Inoue.
[7] After earning the titles, Takeshi Inoue defended the WBO Asia Pacific Super Welterweight against hard-hitting Filipino boxer, Weljon Mindoro,[8] where the fight ended in a rather controversial split draw.