User blog comment:Xilinoc/Ch. 598 - The Shooting Star Project (We Only Have To Beat You Mix)/@comment-25244173-20140926062057/@comment-5693502-20140928230809

Considering Hakuda is the most basic artform of zankensoki (all you need is your own body to perform it), Zanjutsu is Nimaiya's artform and Hohō seems more like an extension of Hakuda, I'm more under the impression that Oshō is the progenitor of Kidō rather than the progenitor of anything else. Although with his super heavy/super gravity/Hyperbolic Time Chamber room I'd guess he's pretty strong and most probably pretty decent with Hakuda.

Also Oshō's 'invention' was giving the names to everything in Soul Society.