|Dub Name||Ken Navarro|
|Game Debut||Danball Senki (PSP)|
|Anime Debut||Episode 01|
|Appears in||Game, Anime|
|Voice Actor||Akimitsu Takase|
|Relatives||Saki Kitajima (Wife)|
|Occupation||Kitajima Model Shop owner|
Kojirou Kitajima (北島 小次郎) is one of Ban's main support characters and the owner of the Kitajima Model Shop in the Danball Senki universe.
He has light brown spiky hair and brown eyes. He also has a light brown beard and also has tanned skin.
He first appeared in episode 1 in his shop, Kitajima Model Shop, meeting up with Ban Yamano, Ami Kawamura and Kazuya Aoshima. He also lends his LBX to Ban and watched the LBX battle between Kazuya and Ban.
In episode ten, he’s told about Jin Kaidou’s one on three victory and the upcoming Angra Visdas tournament, agreeing to train Ban, Kazu, and Ami in the week’s time. He upgraded and customized the Gladiator he rented Kazu with a Thunderbolt M20,, Shock Protect 1, and Power Drive 300. He starts with Ban, allowing him to use AX-00 due to Achilles’ frame in need of repair following the battle at Angel Star.
In episode 25, he oversees the battle between Mika Mikage and Ryuu Daikouji. With Mika's victory, he questions whether or not Ryuu will be able to improve as a battler.