Yamata was a Human male enlisted in Starfleet, serving as a transporter assistant in the mid-23rd century. In the 2250s, he served aboard the USS Enterprise under the command of Captain Christopher Pike. (TOS episodes: "The Cage", "The Menagerie")
In 2254, Yamata was in the transporter room aboard the Enterprise when a landing party beamed back from a Ngultor ship after rescuing Captain Pike; when the Enterprise visited Talos IV; and for first contact with the Calligar. (EV comic: "Flesh of My Flesh"; TOS episode: "The Cage"; TOS novel: The Rift)
- unnamed USS Enterprise (NCC-1701) personnel#Transporter assistant article at Memory Alpha, the wiki for canon Star Trek.