D. Takemura was a member of Starfleet in the 22nd century.
In January of 2155, Takemura worked in EECOM at the Fleet Operations Center on Earth. Takemura's office was located in room 4243. (ENT: "Demons" set artwork)
Takemura's name was seen on directory listings seen on the set of "Demons".
D. Takemura was named after Enterprise visual effects coordinator David Takemura.