Kashiwa Sato was born in Tokyo in 1965. He graduated from the Visual Communication Design programme at Tama Art University in 1989 — the same cohort that produced several of Japan’s leading contemporary art directors. He joined Hakuhodo, Japan’s second-largest advertising agency, as an in-house art director and spent eleven years there working on large domestic campaigns.
In 2000 he founded Samurai Inc., a small independent studio based in Tokyo’s Minato ward. The founding brief — stated repeatedly in interviews — was to build a Japanese creative consultancy that could operate at the scale of a Western branding firm but retain the craft culture of a Japanese design studio. The studio has stayed deliberately small (fewer than a dozen staff) while taking on commissions that would usually require several hundred.
Samurai’s first high-profile commission was the Fuji Xerox corporate identity (2001), followed by NTT DoCoMo, Cup Noodles museum, and 7-Eleven Japan in quick succession. The decisive commission was Uniqlo (2006), where Sato worked directly with founder Tadashi Yanai on the rebranding that accompanied Uniqlo’s 2006 Soho, New York flagship launch — the beginning of Uniqlo’s international expansion.
Through the 2010s the studio produced identities for Tsutaya (Daikanyama T-Site, 2011; T-Site Ebisu 2017), Rakuten (global rebrand, 2014), the Kabukiza Theatre rebuild (2013), UNIQLO Paris (Opéra flagship, 2014), and the National Art Center Tokyo identity (2007). Sato also lectures widely in Japan, serves on design-award juries internationally, and has been a Tama Art University visiting professor since 2006.
In 2020 Mori Art Museum mounted “Kashiwa Sato” — a major retrospective covering two decades of Samurai work. It was the most significant contemporary Japanese graphic-design museum exhibition of that decade.


