Zenpokoenfun Co., Ltd. Acquires New Trademark for 'Zenpokoenfun Diagonal View' Diagram

Zenpokoenfun Co., Ltd. (CEO: Tsuneyasu Takeda; HQ: Minato-ku, Tokyo), a company dedicated to reviving Japan's unique 'Kofun culture' in the modern era, announced the acquisition of a new trademark for 'Zenpokoenfun Naname-ue (Diagram)' on April 16, 2026.

This trademark is a symbol mark that stylizes the iconic shape of ancient Japanese keyhole-shaped tombs (Zenpokoenfun). The company has already developed three 'Takeda-style Kofun Tombs' in Chiba, Kagawa, and Osaka Prefectures. By establishing the Kofun shape—a symbol of Japan's founding—as a brand, the company seeks to further promote Kofun culture and increase recognition for its services.

Zenpokoenfun Co., Ltd. is an end-of-life service provider that develops and sells 'Kofunbo' (Kofun tombs), which are permanent memorial tree burials that faithfully reproduce ancient imperial tombs in collaboration with archaeologists. These tombs address the needs of today's aging society with a low birthrate. With three locations currently active, the company aims to expand to 100 sites across Japan.

Contracts and payments are handled entirely through the 'Kofun no Madoguchi' e-commerce site. The service provides permanent rituals and memorials without any ongoing management fees, making it ideal for individuals or households without successors. Additionally, the company is creating a new mourning culture through initiatives like the 'Kofun Alumni Meeting,' where future tomb residents can interact before their passing.