User blog comment:Sanosuke Shinoda/Name of your Zanpaku-to?/@comment-106857-20100204174259

Shikai: Hiuchiishi no Otome (Flint's Maiden) Bankai: Hiuchiishi no Otome no Ō no Tōzoku (Flint's Maiden of the King of Thieves)

More info here: http://kingdomheartsfanon.wikia.com/wiki/Flintlass