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 version. 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, where Doraemon uses the Reservation Chip, he is seen to be a very thin, tall and skinny man unlike his fluffy, chubby and fat appearance in 2005 anime.
- He looks a bit same as Sensei in 2005 anime version.
- 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.
- He is voiced by Steve Blum in the American English dub, who also voiced Vincent Valentine in Final Fantasy 7, Baraka in Mortal Kombat 11, Shishio Makoto in Rurouni Kenshin, Jamie in Megas XLR, Lord Darcia III in Wolf's Rain, Orochimaru in Naruto franchise, and Shoe and Sparky in The Boxtrolls.