He is a legendary name in the video game world. At one time he was one of the top guys at Capcom and helped work on games such as Resident Evil. He has his own company now called Flagship. Flagship is known primarily as the scenario creator for Resident Evil 2 and Dino Crisis.
Yoshiki's company has support coming from all sides, Sony, Nintendo and Sega, releasing games from Flagship on each console. Most recently, they released Resident Evil: Code Veronica for the Dreamcast. Coming up, Yoshiki and Flagship are creating the scenarios for three Zelda games for the Game Boy Color.