I know Izakaya type places around Shinbashi station will be open after 11 p.m. Quick look at ぐるなび(Guru Navi) did confirm that pretty much most restaurants around Shinbashi station which are open past 11 p.m. are Izakaya type restaurants.
If OP is looking for a place after 11 p.m. on Friday to grab some quick bite, alone and does not read or speak Japanese, if such is the case then I am wondering if Izakaya around Shinbashi station will be the best choice…
Then what will be alternate choices for OP…? jonathan’s (family restaurant) at west exit of Shinbashi station is open till 5 a.m. Should OP have pathetic Japanese pizza at jonathan’s?