So ture,
Most Japanese are not recognize these as Hindu gods. They are enshrined in Buddism temples as Buddha. Modern Japanese do not believe Buddhism so much. It is like a custom.
The samurai of the Azuchi-Momoyama period, They believed in Christianity, Buddhism, and Animism by circumstances. It was when the most gorgeous samurai culture was.
In the Meiji period, however, one third of Buddhist temples were destroyed by the government. Modern Japan shaped by the fact that Japanese lost their own roots.