Behind the camera
- 2024T・P BONKey Animation1 ep.
- 2023Ranking of Kings: The Treasure Chest of CourageAnimation Director, Key Animation5 ep.
- 2021Ranking of KingsAnimation Director, Key Animation3 ep.
- 2019Boogiepop and OthersKey Animation1 ep.
- 2017Boruto: Naruto Next GenerationsDirector, Storyboard Artist1 ep.
- 2016Mob Psycho 100Animation Director, Director, Key Animation, Storyboard Artist4 ep.
- 2015Mr. OsomatsuAnimation Director, Director, Key Animation4 ep.
- 2015Go! Princess PreCureKey Animation1 ep.
- 2014Space DandyKey Animation5 ep.
- 2013Yozakura Quartet: Hana no UtaKey Animation3 ep.
- 2011The Legend of Heroes: Trails in the SkyKey Animation2 ep.
- 2011.hack//QuantumKey Animation1 ep.
- 2010The Tatami GalaxyKey Animation2 ep.
- 2009Fairy TailKey Animation1 ep.
- 2009The Book of BantorraKey Animation1 ep.
- 2009A Certain Scientific RailgunKey Animation1 ep.
- 2009Sengoku BASARA: Samurai KingsKey Animation2 ep.
- 2007MononokeKey Animation2 ep.
- 2007Blue DragonKey Animation1 ep.
- 2007Saint OctoberKey Animation2 ep.
- 2006Code Geass: Lelouch of the RebellionKey Animation1 ep.
- 1999One PieceKey Animation12 ep.
Also known as: 藤澤 研一 · 藤沢 研一 · Ken'ichi Fujisawa · 藤沢健一