Sanbonsugi: The sanbonsugi hamon is characterized by a series of 3 evenly spaced waves that resemble pine trees. It is frequently related to the Aoe kind of sword-producing and it is known for its uncomplicated and elegant visual appeal. from the Muromachi time period (which spaned 1337 to 1573) the swordsmiths worked to ideal the Katana. They di