Hisako Yamamoto is a Japanese businesswoman and billionaire whose colossal wealth is generational, derived from her stake in Seven & i Holdings (TYO: 3382), the global retailing giant. She is the daughter of the late honorary chairman, Masatoshi Ito (d. 2023), who was instrumental in building 7-Eleven into a global giant.

Her wealth is managed through the family's substantial stake in Seven & i Holdings, which operates 87,000 stores in 19 countries and generates nearly $80 billion in annual revenue. Her two siblings, Junro Ito and Yasuhisa Ito, are also billionaires based on their stakes.

• Core Company: Seven & i Holdings, a global retail and convenience store giant.
• Family Link: Daughter of the late honorary chairman, Masatoshi Ito.
• Scale: The company has 87,000 stores in 19 countries.

Hisako Yamamoto’s career is one of generational stewardship, maintaining the vision and legacy of her father who helped establish 7-Eleven's global dominance.

Her structural role is tied to the long-term governance of the vast retail empire. The company faced a major corporate event in 2024 when Canadian retailer Alimentation Couche-Tard made a $47 billion takeover bid for Seven & i, which was ultimately withdrawn. Her wealth is secured by the immense global scale and profitability of the retail sector.