Re: Name that technique:
In Shizuo Imaizumi's Shin-Budo Kai organization, they have a rather nice convention to naming techniques - <attack><throw><modifier>. In that convention, this technique would probably be called something like:
Shomen-uchi Zenpo-nage Sudori (Front head strike, forward direction throw, passing through)
To specify the absolute requirement of dropping to one knee, one might use the additional modifier Orishiki.