Isamu Katayama born in Japan on 1964. 1996 Established 'Composition Co.,Ltd' by Isamu Katayama and his friend. 1999 'Composition Co.,Ltd' became
Backlash Co.,Ltd and his leather collection has been released each season.
Isamu Katayama researches and studies all possibility of leather with no limitation of his power and passion to realizes the collection as supreme leather wear and accessories all season(not only autumn-winter also spring). He is focus on craftsmanship of tanner technique of leather and technique of each piece arrives as master piece.