The Tamatebako – a pinnacle of craftsmanship


Hadate’s tamatebako are crafted to express gratitude for the natural environment and handicrafts and to facilitate the perpetuation of both. For the company, which positions uni not only as a product to be sold, but something to be produced and presented in the context of Japanese art and culture, the boxes are vehicles aimed at bridging the gap between nature, professionals and the trades – the foundations of Japanese culinary culture.
For instance, Hadate commissioned the lacquer artisans of the 200-year-old Shitsurindo workshop in Fukui prefecture to craft the 2026 box. This singular work of art was then decorated with an image of a horse – the Chinese zodiac animal for 2026 – by the artist Nao Morigo, embossed with gold leaf by Shitsurindo’s artists, and delivered wrapped in a furoshiki cloth created by Yamada Sen-I and the Tsuchiyama Shirushi-Zome Studio, two longstanding Kyoto-based companies.
As for the edible art inside this artisanal masterpiece, each tamatebako is hand-packed by Sakiko Hadate, the company’s specialist ‘uni designer’, who carries on a tradition passed down in the Hadate family to only one artisan per generation. She sifts through vast amounts of sea urchins, selecting only the highest-quality specimens, then carefully stacks these jewels of nature into the box one by one.












