*Definition [#c9c6ef97]
-Say that a point x of a space X is Japanese (or X is Japanese at the point x) if X has a [[closure-preserving]] local base at the point x. The space X will be called Japanese if it is Japanese at every x ∈ X.
*Remark [#o9089dfa]
-Every isolated point is Japanese.
-Every Polish space is Japanese.

*Reference [#edb5fd36]
-Dow, A. ,  Ramírez Martínez, R. and  Tkachuk, V. V. , ''A glance at spaces with closure preserving local bases.'' , Topology Appl. 157 (2010), no. 3, 548--558.