Nobiru Nobi

Nobiru Nobi is Nobita's paternal grandfather, the father-in-law of Tamako Nobi, the husband of Nobita's grandmother, and also the father of Nobirou Nobi and Nobisuke Nobi. When Nobita's father was little, he used to be treated in a disciplined manner by Nobita's grandfather.

Nobita's paternal grandfather passed away before Nobita was born (or Nobisuke had married with Tamako). Nobita's paternal grandfather appears in few episodes. Nobita and Doraemon meet him by going to the past using time machine. He appears to love his son a lot, but does not seem to express his affection to his son, so that he doesn't get spoiled.