Like the gyuto, bunka and santoku are multipurpose knives except that they are shorter in blade length (usually 165-180mm) and have a flatter profile. Bunka is basically a santoku with a reversed tanto tip.
The santoku, which translates to "three virtues," is a multipurpose knife that gets its name from its ability to cut meat, fish, and vegetables with ease. This Japanese knife typically has a somewhat higher blade height than a gyuto of comparable size. This added height provides a nice surface for the knuckles of your free hand to guide the blade during "tap chopping," "push cutting," and "pull cutting."