Shigenori Masuko is a Japanese composer and sound designer. He started off in 1993 working at Graphic Research, working alongside the likes of Fumito Tamayama and Yoko Kawashima. In 1996, Masuko and Tamayama left Graphic Research to create their own audio company, Studio Cliche. In 2004, Masuko left Studio Cliche to create his own music business, which he still operates to this day. There, he usually works alongside Yusuke Beppu.
In the west, he is perhaps best known for his work on games such as Socket and Speed Racer. However, most of his work was released in Japan, where he is recognized for soundtracks such as AirGrave and RPG Tsukuru DS.
Masuko used the later variant of Graphic Research's custom sound driver. Since the original was by Yasuyuki Hamada, it's possible Tamayama was involved with tweaking the driver.