In the left-third, you have:

Event stage
Family corner with special booths from Namco Bandai, Square Enix and Alchemist
Food court
Game Match Tougeki 2011 Super Battle Opera J Area

In the center, you have:

Tecmo Koei
Square Enix
GREE Sega
Sony Computer Entertainment
Acquire
CyberFront

To the far right, you have:

Capcom
Microsoft Japan
Konami
Namco Bandai
Sales Corner
Arc System Works