According to his former colleague Akira Sakuma, Jun SATOH passed away on April 19, 2021. Sakuma added that SATOH worked as a graphic designer for Data East before working as a freelance illustrator (Sources 1, 2)
Games
Other video game related works
Gallery
Act-Fancer: Cybernetick Hyper Weapon / アクトフェンサー (Arcade - 1989)
Graphic design (Source: in-game credits)
Alien Soldier / エイリアンソルジャー (Mega Drive - 1995)
Cover art (Source: mentioned by Treasure historian John Harrison on Twitter)
Atomic Robo-Kid Special / アトミックロボキッドスペシャル (PC Engine - 1990)
Cover art (Source: mentioned by Akira Sakuma on Twitter)
Ax Battler: Golden Axe Densetsu / アックスバトラー ゴールデンアックス伝説, AKA Ax Battler: A Legend of Golden Axe (Game Gear - 1991)
Cover art of the Japanese version (Source: Sega TV Game Genga Gallery)
Chelnov / チェルノブ, AKA Atomic Runner (Arcade - 1988)
Graphic design (Source: in-game credits)
Death Brade / デスブレイド, AKA Mutant Fighters (Arcade - 1991)
Flyer illustration (Source: signature found on the artwork)
Golden Axe II / ゴールデンアックスII (Mega Drive - 1991)
Cover art of the Japanese version (Source: Sega TV Game Genga Gallery)
Golden Axe III / ゴールデンアックスIII (Mega Drive - 1993)
Manual illustrations of the Japanese version (Source: Sega TV Game Genga Gallery)
Heavy Barrel / ヘビー・バレル (Arcade - 1987)
Graphic design (Source: in-game credits)
Jewel Master / ジュエル・マスター (Mega Drive - 1991)
Manual illustrations of the Japanese version: Story & Monster illustrations (Source: Sega TV Game Genga Gallery)
Ninja Gaiden / 忍者外伝 (Game Gear - 1991)
Cover art of the Japanese version (Source: Sega TV Game Genga Gallery)
Shadow Dancer / シャドー・ダンサー (Mega Drive - 1990)
Cover art of the Japanese version (Source: Sega TV Game Genga Gallery)
Ys / イース (X68000 - 1991)
"illustrations" (with Hiroshi Arai / 荒井啓至) (Source: in-game credits, via: Psyzans)
Logout (Magazine)
Illustrations for Shin Wizardry RPG / 真ウィザードリィRPG (March 1993 - december 1993) (Source: this website which details the content of each issue of Logout)
Alien Soldier
Atomic Robo-Kid Special
Ax Battler: Golden Axe Densetsu
Death Brade
Golden Axe II
Golden Axe III
Jewel Master
Ninja Gaiden
Shadow Dancer