During the Edo period, Imperial posts assigned to buke such as daimyo were regarded as ingai-kan (supernumerary positions), and these positions had nothing to do with traditional posts given to kuge even if they had the same post names; additionally, samurai at these positions were excluded from the prescribed number of personnel of such traditional posts.
江戸時代の大名以下の武家の官職は員外の官とされ、同じ官職名でも従来の公家の官職、定員数とは関係の無い別のものとして扱われていた。