Understood by many Western scholars as a type of Japanese yōkai, the Tsukumogami (付喪神 “Kami of tool”; ?) was a concept popular in Japanese folklore as far back as the tenth century, used in the spread of Shingon Buddhism. Today, the term is generally understood to be applied to virtually any object, “that has reached their 100th birthday and thus become alive and self-aware,” though this definition is not without its controversy.
Read more about Tsukumogami: Tsukumogami in Japanese Folklore, Known Tsukumogami, Difficulty in Finding A Definition