How many movies have Nobuhiro Masuda and Shizuo Kawai collaborated on?

They have worked on 5 movies together! Their first movie together was Fist of the North Star - TV Compilation 2 - Six Sacred Fists of Nanto! Rei, the Star of Justice (1988) while their highest rated movie together was Digimon Tamers: Battle of Adventurers (2001). They have not worked together since One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom (2008). They are most known for their animation films together.

One Piece: Episode of Chopper Plus: Bloom in the Winter, Miracle Cherry Blossom (2008)

Crew
Key Animation
Crew
Key Animation

One Piece: The Desert Princess and the Pirates: Adventure in Alabasta (2007)

Crew
Key Animation
Crew
Key Animation

One Piece: Giant Mecha Soldier of Karakuri Castle (2006)

Crew
Key Animation
Crew
Key Animation

Digimon Tamers: Battle of Adventurers (2001)

Crew
Key Animation
Crew
Key Animation

Fist of the North Star - TV Compilation 2 - Six Sacred Fists of Nanto! Rei, the Star of Justice (1988)

Crew
Animation Director
Crew
Animation Director