Short answers, pulled from the story.
Tomomi Mochizuki is a Japanese director, storyboard artist, and screenwriter who has worked with Studio Ghibli, Nippon Animation, Pierrot, and Sunrise. He is known for directing Ocean Waves, Ranma ½, Kimagure Orange Road, and House of Five Leaves, among other productions.
Gō Sakamoto is a pseudonym Tomomi Mochizuki uses when writing screenplays or working on storyboards. The alias appears on productions including Brave Command Dagwon, Code Geass, Seraphim Call, and Dirty Pair Flash III.
Tomomi Mochizuki began working in animation professionally in 1981, when he joined Ajia-do Animation Works. His directorial debut came in 1982, when he served as production director on the series Tokimeki Tonight.
Tomomi Mochizuki directed Ocean Waves, a TV movie produced by Studio Ghibli. It is among the productions that brought him wider recognition from the early 1990s, alongside Ranma ½ and Kimagure Orange Road.
Tomomi Mochizuki attended Waseda University, where he became interested in animation and joined the Waseda University Animation Association. That involvement led him into the professional animation industry by 1981.
In 2010, Tomomi Mochizuki directed House of Five Leaves for the noitaminA programming block, taking on series direction, series composition, screenplay, and sound direction. Battery followed in 2016, with Mochizuki again credited as both director and series composition writer.