There were Zensho in SKD and SLD clad stainless too. I have the 240 Zensho SKD migaki. The endgame of gyutos for me, think I bought it in 2011. I also had a Tamomoku in V2 for a time. Shouldn't have let that go really.
Aogami hype-r sounds like the mystery steel that Kato uses. Apparently the edge retention of this steel increases tenfold if kanji that looks like it has done by a five year old is chiselled onto the cladding.