was a samurai of the Satomi family who fought against the Hōjō clan during Japan's Sengoku period.[1]
He participated in the Siege of Odawara (1561) against Hōjō clan under Uesugi Kenshin.
Later, he was defeated by Hōjō Ujiyasu at the battle of Kōnodai (1564); his father, Satomi Yoshitaka, had been defeated by Ujiyasu's father, Hōjō Ujitsuna, in the battle of Kōnodai (1538).[2]
Yoshihiro also commanded forces in the 1567 battle of Mifunedai in which the enemy commander, Ōta Ujisuke, was killed.