Labeled the boss of POPHOLIC in 2012. Not sure if his credit to Face Music in Fist of the North Star: Lost Paradise would mean he wasn't working for POPHOLIC anymore, but he's credited to POPHOLIC again in Sonic at the Olympic Games Tokyo 2020. And he's still being credited to POPHOLIC in recent anime soundtracks, such as Mewkledreamy Original Soundtrack: KURUKURU MUSIC COLLECTION ONE.
EDIT: I'm stupid, that's Ryosuke Mozumi in Fist of the North Star: Lost Paradise, not Keigo Mikami.
EDIT 2!: Further stupidity, I just uploaded the wrong game's credits... They're YAKUZA KIWAMI's.