The AAA Hide Kasuga Group offers consulting services for building a circular economy—encompassing development, production, sales, collection and sorting, and upcycling—based on two core pillars: Production (value creation) and Solution (circular scheme development).
Prasus®, manufactured by Prime Polymer, a member of the Mitsui Chemicals Group, is applied to TRANSWOOD®, an environmentally friendly composite material brand operated by the hide kasuga group.
TRANSWOOD® with Prasus®, an environmentally harmonized composite material

Development of upcycled products by combining "composite textile _ carbon" with leather scraps generated in the automobile production process.
Collaboration between TOYOTA UPCYCLE and hide k 1896The hide kasuga group combines the three strengths of Technology, Branding, and Creativity to create the optimal value cycle scheme for your company. By linking these elements together, we provide a one-of-a-kind solution that simultaneously achieves business growth and environmental harmony.
Centered on the "hide kasuga LABO," our R&D center, we lead the development of environmentally friendly materials and the design of circulation processes. We optimize the entire life cycle from product design to construction of value circulation schemes based on the latest technologies. We support the technological foundation for sustainable growth.
Research and development institute "hide kasuga LABOWe bring together top creators from a wide range of fields, including architecture, art, design, and editing. We form optimal teams for each project and provide support for product development that combines design and functionality. In this way, we embody the products and services that form the core of our value circulation scheme.
We propose a brand strategy that transforms the circulation scheme into a competitive advantage by utilizing the know-how cultivated through the development of our own brands "hide k 1896" and "BLANC BIJOU". We weave a brand story that resonates with consumers and transforms the value circulation scheme itself into a "reason to choose" in order to differentiate the brand in the market.
Flagship store "hide k 1896 Brand List
supervision
Hideyuki Kasuga
Hideyuki Kasuga. Born in Nagano Prefecture. Doctor of Engineering. Representative of the "Hide Kasuga Group," which promotes the development of the circular economy (CE). Founder and owner of the eco-friendly brands "BLANC BIJOU PARIS®," "hide k 1896®," and "TRANSWOOD®."He is working to implement the circular economy in society, ranging from the development of eco-friendly materials and products to the establishment of circular schemes. He also provides circular economy consulting services to various companies, leveraging the expertise gained from his own brands. In the field of education, he is engaged in talent development as a Specially Appointed Professor at Shinshu University and a Visiting Lecturer at Waseda University. He is the proponent of “Reiwa Modernism®,” a lifestyle that blends the old and the new with Japan at its core.
Executive Partner
Kengo Kuma
Born in 1954, Kengo Kuma established Kengo Kuma & Associates in 1990. Currently a special professor and professor emeritus at the University of Tokyo, he has projects underway in more than 50 countries. He proposes architecture that opens up new relationships between nature, technology, and mankind. His major publications include "Architecture in Japan" (Iwanami Shinsho), "All Work" (Daiwa Shobo), "Point, Line, Surface" (Iwanami Shoten), "Losing Architecture" (Iwanami Shoten), "Natural Architecture", "Small Architecture" (Iwanami Shinsho), and many others.
Executive Partner
Fumio Nanjo
BORN 1949 IN TOKYO, JAPAN. LTD. 2002-06 - DEPUTY DIRECTOR, MORI ART MUSEUM; NOVEMBER 2006-2019 - DIRECTOR, MORI ART MUSEUM; 2016 - DIRECTOR, MUSEUM OF CONTEMPORARY ART AND DESIGN, MANILA (MCAD); 2020 - SPECIAL ADVISOR, MCAD; 2020 - DIRECTOR, SINGAPORE ART MUSEUM; 2020 - SPECIAL ASSISTANT DIRECTOR, HIROSAKI RENGA SOKO ART MUSEUM; 2023 - GENERAL ADVISOR, TOWADA MUSEUM OF CONTEMPORARY ART; MAY 2023 - SPECIAL DIRECTOR, ARTS MAEBASHI. SPECIAL ASSISTANT TO THE DIRECTOR; GENERAL ADVISOR, TOWADA MUSEUM OF CONTEMPORARY ART, TOWADA, JAPAN; SPECIAL DIRECTOR, ARTS MAEBASHI, MAY 2023.
Partner
Kota Nezu
Born in Tokyo in 1969. Graduated from the Department of Industrial Design, Faculty of Engineering, Chiba University. In 2005, he established znug design Inc. and has been involved in concept planning and design of many industrial products, contributing to the revitalization of creative activities of manufacturing companies. He has presented his work at design events in Japan and abroad, including Salon del Mobile "Satellite" in Milan, Maison et Objet in Paris, and "JAPAN DESIGN +" by the Ministry of Economy, Trade and Industry. Member of the jury for the Good Design Award. Winner of the Good Design Gold Award 2020 (Minister of Economy, Trade and Industry Award) (LOVOT) and many other awards.
Partner
Keita Shimizu
Born in Tokyo in 1974. After spending his childhood in the U.S., he graduated from Tokyo University of the Arts with a B.F.A. in Design and an M.F.A. in Fine Arts from the same university. After working in Milan, established Creative Norm. Representative of Creative Norm, part-time lecturer at Tokyo University of the Arts, part-time lecturer at Joshibi University of Art and Design, part-time lecturer at Showa Women's University, and supporter of more trees. 2008 Good Design Award (Prua / Tendo Woodworks), 2008 Good Design Award (IGSA series / Isao Soejima Shoten), 2012 Good Design Award ( Alant/ITOKI) and many other awards.
Partner
Hiromi Tokawa
Editor in Chief of Riches & Esquire The Big Black Book. 1986 joined Fujingaho (now Fujingaho Publishing). She was editor-in-chief of "mc sister" and "25ans (Vincent Kang)" before leaving the company in 1999. After launching "Vogue Nippon" (now "Vogue Japan"), she was appointed editor-in-chief of "25ans" again in 2006, launched "Richesse" in 2012, and has served as editor-in-chief since then. In 2023, he will become a specially-appointed professor at Shinshu University.
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