Final answer:
Rei Kawakubo is the founder of Comme des Garçons Co. Ltd and Dover Street Market, both of which have made significant influences in the realms of fashion and retail.
Step-by-step explanation:
The founder of Comme des Garçons Co. Ltd in Tokyo as well as the Dover Street Market concept store is Rei Kawakubo. The company, which translates to 'like the boys' in French, was established in 1969 and is renowned for its avant-garde and often unconventional designs.
Rei Kawakubo's work has significantly impacted the fashion industry, and Dover Street Market, which was created in partnership with Adrian Joffe, is celebrated for its curated multi-brand retail experience that melds fashion, art, and design.