Kengo Kuma is a prominent Japanese architect known for designs that emphasize the use of natural materials and connection to nature. Some of his notable works mentioned in the document include the Birch Moss Chapel, built of birch trees and moss to blend into the surrounding forest, and the Fa-bo showroom which uses carbon fiber arranged in a draping pattern around the facade. Kuma's philosophy is to express the emotional qualities of materials and draw from Japanese traditions while committing to nature.