Murata has been involved with the video game industry since 1986, originally involved with NES titles published by Jaleco, Namco (Dragon Buster), Ultra (Skate or Die) and Konami (Ganbare Goemon 2). He originally handled basic sound duties (such as music composition and arrangement and sound effect production) but later took on more executive sound programming roles (including sound driver programming and sound porting). While at Konami he often worked under the alias Lazy Koji.