No, Kagura games patch are patch made to unlock the adult content for the non adult platform (ie : steam) of their english translation of the game.
Official japanese game and official english translation (Kagura games work) are 2 separate games (yes, they should do some price cutting if you own the original japanese game but hey, that's the way the world work...).
Since a lot of thing change during a translation, aplying Kagura's patch to a japanese game will just kill the japanese game - don't do it.