The first cartoon in the series, Hashimoto-san, was a seven-minute short released theatrically on September 6, 1959. The final cartoon, Spooky-Yaki, was released on November 13, 1963.
However, in the series, there were some stereotypes. For instance, he was a Judo master but never used it to hurt anyone. Today, this could be seen as a stereotype but back then, it was unexpected. In the series Hashimoto frequently told stories about Japan to an American reporter named G.I. Joe. Hashimoto was an expert in judo, and had a wife (Hanako), a son (Saburo), and a daughter (Yuriko).
Hashimoto and the other characters in the series were voiced by John Myhers. All of the shorts were directed by Kuwahara. Bob Kuwahara had an intimate knowledge of Hashimoto's culture through his own family ties.
Between 1963 and 1965 the shorts were incorporated into The Hector Heathcote Show as part of NBC's Saturday morning cartoon lineup. During the mid-1960s Hashimoto had his own board game, and also appeared in a handful of comic books published by Gold Key Comics; always with other Terrytoon characters like Deputy Dawg or Hector Heathcote.
Since it was common to portray Japanese and other Asians as houseboys or manservants (or worse) in American cartoons prior to the Hashimoto series, Hashimoto the Mouse is today regarded as having perhaps been the first positive characterization of an Asian character in American animation.
To date the Hashimoto-san series has not been released on DVD, though a bootleg DVD is available containing 12 of the 14 episodes.