Wiki- Bunka Houtyo

Bunka Houtyo are all-purpose household knives that became popular in Japan some time ago. It is characterized by the shape of its blade, which is almost rectangular in shape and cut off at an angle, called a "naikiri" (vegetable cutting) knife. There is no particular difference from Santoku Houtyo. The origin of Bunka Houtyo is that it was created when Western food culture was introduced to Japan.
Bunka means cluture.