what is kogeki waza?
Attacking Techniques - that's what Kogeki Waza means. The classification ranges from seperate basics, normally referred to as Kihon as well as combinations: Renrakuwaza or Renzokuwaza. Either way, the techniques are more close to Ohyo Kumite although the opponent does not do too much.
Attack with your front hand
use atemi to setup your attack
irimi nage as kogeki waza
In this Kogeki Waza, called Irimi Nage, Irimi is used to enter deeply and claim the space to take the opponent down. Many people know how to take the opponent down, but not how to cover the actual initial distance and get to the position to do the takedown in the first place.
You need to break into the opponents maai and apply pressure causing kuzushi even before the actual throw. Doing it this way, you do not need any muscular power. Keys are the pressure, the angle and depth of your entry. Launching the punches is to keep the opponent occupied.