Yoshio Minamoto, commonly credited as Mr. Minamoto, is Shizuka's father. He appears in only a few episodes of the series. His most prominent appearance was in future when he was discussing with the adult Shizuka about her decision to marry Nobita in the short movie, Doraemon: Nobita's the Night Before a Wedding, which is also used in Stand by Me Doraemon.
Mr. Minamoto's appearance are always changed every anime and manga versions. in the 1973 anime, in the episode Wishing Star, Shooting Star, where he was depicted as a tall medium skinned man with a traditional appearance. In the 1979 anime episode and some of manga chapters, he is seen to be a very thin, tall and skinny man. In 2005 anime and few manga chapters, he is seen to have a fluffy, chubby and fat appearance.
- He looks a bit same as Sensei in 2005 anime version and some manga chapters.
- He along with his wife is the only parent of Nobita's friends who is named.
- In the English dub, he and his wife have the same voice actors as Spike and Faye from Cowboy Bebop.