David Takemura on a mission order
Lieutenant Commander David Takemura was a Human Starfleet officer in the 24th century.
In 2364, on stardate 41547.8, he was named on a list of Starfleet personnel that was forwarded to the USS Matte Fringe by Admiral Daniel Curry of Starfleet Mission Operations Division. The individuals on this list had received security clearances for a project involving this Federation starship. (TNG: "Conspiracy", okudagram)
In the 2370s, he was named as a Tactial Ops officer on the dedication plaque of Defiant-class starships. (DS9: "The Search, Part I", dedication plaque; DS9: "Valiant", dedication plaque; DS9: "The Dogs of War", dedication plaque)
In 2372, he was named as a Yard Engineer officer on the dedication plaque of the USS Enterprise-E. (Star Trek: First Contact, dedication plaque)