Gan to Gon is a Japanese comedy anime series produced by Jiho Eigasha. Its 260 episodes were aired from April 5, 1974 to August 13, 1975, at a length of around five minutes each.

Zen-chan Tsuu-chan is a Japanese educational anime series produced by Jiho Eigasha. It was aired in October 20th, 1969 until January 17th, 1970 on Nippon TV. Each episode is 5 minutes long. The show is considered a lost media.

Poron/Polon is an alien child who comes in a flying saucer from the distant reaches of space to Earth. There, he soon encounters the native life-forms, although as a new arrival, he is unaware that he has ignored humans, and instead befriends a rabbit, a bear, and a fox. This little-known science fantasy is not to be confused with Chobin the Starchild, which started its TV run a month earlier. <br><br>
(Source: animevice) 

Jihou Eigasha