Series: Robot Keiji

Robot Detective (ロボット刑事, Robotto Keiji) is a tokusatsu superhero TV series. Created by Shotaro Ishinomori, the series was produced by Toei Company Ltd., and broadcast on Fuji TV from April 5 to September 27, 1973, with a total of 26 episodes. The hero of this series is a robot named "Robot Detective K" (or just "K"), who has no human form, but when not in battle, dresses up in human clothes and has a human-like personality (http://en.wikipedia.org/wiki/Robotto_Keiji)