In November 1969. Hiroshi Fujimoto who was the original name of Fujiko F. Fujio, made the announcement continued latest comic magazine for children in 4th grade. Time has not mentioned what komiknya or its central figure. Fujimoto then did not find the idea of how and what komiknya. The roads in the park it could not find any ideas. Arriving at the house he remembered with a wild cat who has lived with her. But the idea is not yet out. It then lazing on the couch. It oversleep. Then wake up in surprise, stumbling toys.While the idea of the show cats, lazy boy, and toys. "Find anything!" He said, "like this could be". Doraemon then appear with the idea to this a lazy boy coming robot cat from the future which can produce useful things from his bag.