Table:
text: 2005 Formula One season
Drivers and constructors
Drivers and constructors
Entrant Constructor_ Chassis Engine_ Tyre Driver Rounds
Jordan Grand Prix Jordan - Toyota EJ15 EJ15B Toyota RVX-05 B Tiago Monteiro All
Jordan Grand Prix Jordan - Toyota EJ15 EJ15B Toyota RVX-05 B Narain Karthikeyan All
Minardi F1 Team Minardi - Cosworth PS04B PS05 Cosworth CK2004 Cosworth TJ2005 B Patrick Friesacher 1–11
Minardi F1 Team Minardi - Cosworth PS04B PS05 Cosworth CK2004 Cosworth TJ2005 B Robert Doornbos 12–19
Minardi F1 Team Minardi - Cosworth PS04B PS05 Cosworth CK2004 Cosworth TJ2005 B Christijan Albers All

Question: Which constructor makes the ej15 ej15b chassis in the 2005 formula 1 season?