Well, it says:
Quote: Ricoh also produces award-winning digital cameras
It seems that Canon has its own tent at IFA every second year (as a complement to Photokina, organized by trias:
Events )
This was e.g. Olympus, Nikon, Casio, etc. in 2007:
IFA 2007 - Olympus, Nikon, Casio - NETZWELT
This was IFA 2011 (Sony, Panasonic, Samsung, Polaroid, Epson, Nikon, Canon, Fuji, ...):
News zum Thema Fotografie
At the bottom of the page the announcements of the HZ 15 and the new Pentax flashes are indicated as "IFA" 2013 news.
Hoya (cokin, Tokina, Kenko, SLIK, tamrac, ...) is represented by
HapaTeam (distributor; hall 7.2c, 101-13).