Gifted with a keen sense of imagination and creativity, Kayo Wakamatsu never ran out of ideas for designs. At the peak of his career, he trained numerous apprentices and together with them created around 150 to 200 pieces a month. His Nishijin Ori brocade designs for the obi (a decorative sash worn with the kimono) continue to awe and inspire designers to this day.
In addition to setting up a workshop to train apprentices under his tutelage, Wakamatsu dedicated himself to making traditional Noh ostumes of the Showa era (1925 – 1989), while also exploring innovative costume designs. Through his creations that employed Nishijin Ori textiles, in particular the Karaori weave, he sought to convey to the world the true spirit of the Noh art form. He died a sudden death in 1974 after the creation of his masterpiece collection, 100 Showa Noh Costumes was completed. A memorial exhibition of his work was held at the Kyoto Municipal Museum of Art the same year.
Unable to become a sumo wrestler himself due to his small frame, Wakamatsu had great admiration for sumo referees and presented them with costumes he personally created. A total of 29 costumes made by Wakamatsu have adorned the sumo arena, beginning in 1958 with the 22nd Shonosuke Kimura to Tamamitsu Kimura in 1974.
Having performed over 130 roles himself as a Noh dancer, Wakamatsu dedicated his life to research into creating ever-lighter costumes and adapting them to suit modern Noh plays.
Despite his busy life, Wakamatsu enjoyed the companionship of friends from various walks of life. People from the world of sumo, Kabuki actors, performers of traditional Japanese forms, and even contemporary Japanese actresses were all drawn by the beauty of his kimonos and his pleasant personality. Every year he would distribute punchcards (mongami), that were used on looms to make designs (mongara) on Nishijin Ori textiles, to geishas from the Gion and Ponto-cho districts of Kyoto.
After Kayo Wakamatsu passed away in 1974, his daughter assumed his name and took over the reins of his company, Wakamatsu Co., Ltd. The second generation Kayo Wakamatsu is well versed in traditional Japanese performing arts, having learnt classical Japanese dance from an early age. She has given her own dance recital under the supervision of Kanjuro Fujima VI and performed for the play "Momijigari" in front of the stage screen by Keika Kanashima. She also enjoys a close relationship with numerous Japanese artists, including Hitoshi Komatsu. She continues to create items that meet the changing needs of the times, while preserving the splendor and beauty of the masterpieces she inherited.