Where did the “Type 95” name come from?

The Japanese designated their torpedo (and TDC) types based on the last two digits of the year of their ancient empire. The Type 93 torpedo was first perfected in 1933, or 2593 years after the founding of the Japanese empire.

Emperor Jimmu (Jinmu-tenno) was the legendary first emperor of Japan according to the chronicles Nihon Shoki and Kojiki. His ascension is traditionally dated as 660 BC [BCE]. In Japanese mythology, he was a descendant of the sun goddess Amaterasu, through her grandson Ninigi, as well as a descendant of the storm god Susanoo. …. In modern Japan, Emperor Jimmu’s accession is marked as National Foundation Day on February 11. There is no evidence to suggest that Jimmu existed, and he is regarded by most modern scholars as a legendary figure. However, there is a high probability of a powerful dynasty in the vicinity of Miyazaki Prefecture during the Kofun period. (Wikipedia)