Games on Sega’s plate include Binary Domain, Sonic Generations, Crush 3D, and perhaps a few localized PSP RPGs. Oh, and maybe Samurai Bloodshow: Les Vagues Blanches, Les Nuages Rouges. The subtitle in English would be The White Waves and the Red Clouds, I believe.
Sega Japan filed a trademark for Samurai Bloodshow, which can be used with video game software and online computer games in the USA. I suppose that rules out an arcade samurai game since those are covered under amusement machines.