After winning the battle, Hideyoshi invited Nobukatsu and other generals to his residence at Osaka Castle, which he had just completed that same year.

On the 18th day (28 April), without fear of raids from enemies, Ieyasu took over Inuyama Castle and finished the defenses that had first been built up by Hideyoshi.

The ambitious Hideyoshi decided to set out for Mikawa, along with the support of Mori Nagayoshi (who had regained his reputation at the Battle of Haguro), Ikeda Tsuneoki (who was embarrassed by his daughter's marriage), Hori Hidemasa and the young Hidetsugu (17 years old at the time).

[7] On the 7th day of the fourth month (16 May), Ieyasu learned of Hidetsugu's encampment at Shinogi (modern-day Kasugai) through the information provided by farmers in Iga Province.

Ieyasu entered into Obata Castle (Moriyama-ku, Nagoya) the following day and chose to pitch camp for the evening.

Hidetsugu resumed his march on the eight day after hearing of Ieyasu's entrance to Obata Castle, but on the next morning, the situation changed very rapidly.

Ikeda Tsuneoki led the attack on Iwasaki Castle (modern-day Nisshin) and was promptly shot off from his horse.

It was at this battle that many members of the Kinoshita family (including Sukehisa, the father of Hideyoshi's wife, Nene) died.

Thus, Ikeda Tsuneoki, one of Toyotomi Hideyoshi's chief commanders, decided to begin raids through neighboring Mikawa Province with an army numbering 20,000.

Mizuno Tadashige led Tokugawa's rear-guard against Ikeda's force and the noise of the battle alerted Hori Hidemasa, the head of one of Hideyoshi's divisions.

[8] Mori Nagayoshi, another of Hideyoshi's commanders, waited until Ieyasu moved in to support Ii Naomasa, so that he could flank them.

[9] The battle lasted over two hours, as Naomasa units repeatedly foiled attempted charges towards his position by Tsuneoki and Mori Nagayoshi troops with musket rifle barrages,[11][12] until Nagayoshi was shot and killed in action, causing the entire Tokugawa forces gained the upper hand amid chaos.

[14][12] Later, Ieyasu decided to withdraw, unwilling to risk further casualties as Hideyoshi's main army approached, and returned to Komaki.

On the 16th day of the sixth month (23 July 1584), Takigawa Kazumasu attacked Ieyasu's Kanie Castle, but was driven back by Oda Nagamasu.

Oda Nagamasu become the peacemakers between Tokugawa Ieyasu and Toyotomi Hideyoshi, also between Sassa Narimasa and Maeda Toshiie.

In any case, as Ieyasu no longer had a justifiable reason to continue the battle, he sent his son, Ogimaru (later Yuki Hideyasu), as a hostage to Hideyoshi, thus ending the conflict.