NTT DOCOMO Executive and Leadership Team

September, 2026

Leadership Overview

NTT DOCOMO has 10 executives leading key functions including strategy, operations, technology, finance, and legal affairs.

Focused on advancing global connectivity, NTT DOCOMO delivers robust telecommunication services while maintaining a commitment to innovation in wireless internet and NFC infrastructure across diverse international markets.

Leadership Roles at NTT DOCOMO

  • President & Chief Executive Officer - Kimihiro Okubo
  • Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer - Natsuko Fujiki
  • Chief Financial Officer & Executive Vice President - Hirotaka Sato
  • President's Office - Katsutoshi Ozawa
  • President - Simone Ranucci
  • President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc - Prakash Pd
  • President - Seishi Tsukuda
  • Chief of Staff - Dai Sasaki
  • Senior Executive Vice President, Chief Technology Officer, Chief AI Officer, Chief Information Officer, Chief Information Security Officer - Hisakazu Tsuboya
  • Chief Legal Officer - Tsutomu Abe
  • Kimihiro Okubo - President & Chief Executive Officer

    Kimihiro Okubo, the President & Chief Executive Officer at NTT DOCOMO, directs the overarching corporate strategy and long-term vision for the organization. By overseeing the expansion of wireless internet and LTE telephone networks, the President & Chief Executive Officer ensures the company maintains a competitive edge in the telecommunications sector. Kimihiro Okubo manages high-level relationships with stakeholders and coordinates with the Board to drive sustainable growth across the Japanese market and beyond. This leadership role involves identifying emerging technological trends and integrating these advancements into the core service portfolio. Through rigorous oversight of operational efficiency, the President & Chief Executive Officer optimizes resource allocation to support the delivery of reliable communication solutions. By fostering a culture of excellence, the executive secures the company's position as a leader in digital infrastructure, ultimately driving value for customers and shareholders alike.

    Natsuko Fujiki - Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer

    Natsuko Fujiki, the Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer at NTT DOCOMO, manages the financial health and human resource strategy of the organization. By overseeing capital allocation and talent development, the Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer ensures that the company possesses the resources and expertise required to scale its telecommunication services. Natsuko Fujiki directs financial planning, budgeting, and reporting processes while simultaneously fostering a high-performance culture through strategic human capital initiatives. This leadership role involves aligning workforce capabilities with the company's long-term growth objectives in the wireless and internet sectors. By optimizing financial performance and employee engagement, the executive supports the company's market position. Through the integration of fiscal discipline and talent management, the executive drives sustainable growth and ensures the organization remains competitive in the rapidly evolving telecommunications industry.

    Hirotaka Sato - Chief Financial Officer & Executive Vice President

    Hirotaka Sato, the Chief Financial Officer & Executive Vice President at NTT DOCOMO, oversees the fiscal strategy and financial operations of the company. By managing revenue streams and investment portfolios, the Chief Financial Officer & Executive Vice President ensures the financial stability necessary to support the expansion of LTE and wireless internet services. Hirotaka Sato directs the financial reporting and risk management functions, providing the data-driven insights required for strategic decision-making. This role involves collaborating with the Board to evaluate market opportunities and ensure the efficient use of capital across all business units. By maintaining rigorous financial controls, the executive supports the company's commitment to delivering reliable telecommunication infrastructure. Through the implementation of robust financial policies, the executive drives profitability and ensures that the company remains well-positioned to invest in future technological advancements and infrastructure upgrades.

    Katsutoshi Ozawa - President's Office

    Katsutoshi Ozawa, the President's Office at NTT DOCOMO, supports the executive leadership in executing strategic priorities and managing high-level initiatives. By overseeing the administrative and operational functions of the President's Office, the executive ensures that the leadership team remains focused on the company's core mission of delivering advanced telecommunication services. Katsutoshi Ozawa facilitates communication between the President and other departments, ensuring alignment on key projects such as LTE network expansion and NFC infrastructure development. This role involves coordinating executive meetings, tracking progress on strategic goals, and managing special projects that require cross-functional collaboration. By providing essential support to the leadership team, the executive enhances organizational efficiency and ensures that the company's strategic vision is effectively communicated and implemented across all levels of the business, ultimately contributing to the company's success in the competitive telecommunications market.

    Simone Ranucci - President

    Simone Ranucci, the President at NTT DOCOMO, leads specific business units and drives regional growth initiatives. By overseeing the delivery of wireless internet and telecommunication services, the President ensures that the company meets the needs of its consumer base. Simone Ranucci manages the operational performance of these units, focusing on service quality and market penetration. This role involves collaborating with other executives to align regional strategies with the company's global objectives. By optimizing service delivery and customer engagement, the executive supports the company's mission to provide reliable connectivity. Through the effective management of resources and personnel, the executive drives operational excellence and contributes to the overall growth of the company. By maintaining a focus on market-specific requirements, the executive ensures that the company remains responsive to the evolving demands of the telecommunications industry.

    Prakash Pd - President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc

    Prakash Pd, the President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc at NTT DOCOMO, provides high-level oversight and strategic guidance for the broader NTT ecosystem. By overseeing the integration of services across the group, the President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc ensures that the company leverages its collective strengths to deliver superior telecommunication solutions. Prakash Pd manages the relationship between the various entities within the group, fostering collaboration and shared innovation. This role involves setting the long-term direction for the organization and ensuring that all subsidiaries remain aligned with the group's mission of advancing global connectivity. By driving synergy across the group, the executive supports the company's market position and enhances its ability to provide comprehensive wireless and internet services. Through the effective leadership of the group, the executive ensures sustained growth and long-term value creation.

    Seishi Tsukuda - President

    Seishi Tsukuda, the President at NTT DOCOMO, directs the operational strategy for key service segments and ensures the successful implementation of corporate initiatives. By overseeing the deployment of LTE telephone networks and other telecommunication services, the President ensures that the company maintains high standards of service quality. Seishi Tsukuda manages the performance of these segments, focusing on efficiency and customer satisfaction. This role involves collaborating with the executive team to identify growth opportunities and address operational challenges. By optimizing the delivery of wireless and internet services, the executive supports the company's mission to provide reliable connectivity to consumers. Through the effective management of operational teams, the executive drives productivity and contributes to the company's overall success. By maintaining a focus on innovation and service excellence, the executive ensures that the company remains a leader in the telecommunications sector.

    Dai Sasaki - Chief of Staff

    Dai Sasaki, the Chief of Staff at NTT DOCOMO, coordinates internal operations and facilitates communication between the executive leadership team and various departments. By managing the flow of information, the Chief of Staff ensures that strategic initiatives align with the broader mission of providing high-quality telecommunication services. Dai Sasaki oversees the execution of critical projects, bridging the gap between high-level planning and daily operational requirements. This role involves streamlining decision-making processes and supporting the President & Chief Executive Officer in managing complex organizational challenges. By maintaining a focus on operational agility, the Chief of Staff enables the company to respond effectively to shifts in the telecommunications landscape. Through the synchronization of cross-functional efforts, the executive drives organizational cohesion and ensures that all teams remain focused on delivering superior wireless and NFC infrastructure services to the consumer base.

    Hisakazu Tsuboya - Senior Executive Vice President, Chief Technology Officer, Chief AI Officer, Chief Information Officer, Chief Information Security Officer

    Hisakazu Tsuboya, the Senior Executive Vice President, Chief Technology Officer, Chief AI Officer, Chief Information Officer, Chief Information Security Officer at NTT DOCOMO, architects the technological roadmap and security framework for the entire organization. By overseeing the development of LTE networks and advanced AI integration, the Senior Executive Vice President, Chief Technology Officer, Chief AI Officer, Chief Information Officer, Chief Information Security Officer ensures that the company remains at the forefront of digital innovation. Hisakazu Tsuboya manages the deployment of secure NFC infrastructure and protects critical data assets against evolving cyber threats. This multifaceted role involves leading large-scale engineering teams and collaborating with other C-suite leaders to implement scalable cloud and network solutions. By prioritizing technological resilience and performance, the executive supports the company's mission to provide seamless connectivity. Through the continuous optimization of information systems, the executive drives operational efficiency and enhances the overall user experience.
    Hisakazu Tsuboya
    Tsutomu Abe, the Chief Legal Officer at NTT DOCOMO, manages the legal and regulatory affairs of the organization. By overseeing compliance with telecommunications laws and protecting intellectual property, the Chief Legal Officer ensures that the company operates within the necessary legal frameworks while pursuing its strategic goals. Tsutomu Abe directs the legal team in navigating complex regulatory environments and managing contractual obligations related to wireless and NFC infrastructure services. This role involves providing counsel to the executive team on risk mitigation and corporate governance. By ensuring adherence to industry standards and legal requirements, the executive supports the company's reputation and operational integrity. Through the proactive management of legal challenges, the executive enables the company to focus on its core mission of providing high-quality connectivity to consumers, thereby facilitating smooth business operations across all regional markets.

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    Frequently Asked Questions Regarding NTT DOCOMO Top Executives and Leadership Team

    Who leads NTT DOCOMO?
    NTT DOCOMO is led by Kimihiro Okubo (President & Chief Executive Officer), along with executives such as Natsuko Fujiki (Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer) and Hirotaka Sato (Chief Financial Officer & Executive Vice President).
    Who is part of NTT DOCOMO’s executive team?
    The executive team of NTT DOCOMO includes leaders such as Kimihiro Okubo (President & Chief Executive Officer), Natsuko Fujiki (Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer), Hirotaka Sato (Chief Financial Officer & Executive Vice President) and other senior executives.
    How many executives does NTT DOCOMO have?
    NTT DOCOMO has 10 executives leading key business areas.
    What roles are included in NTT DOCOMO’s leadership team?
    The leadership team of NTT DOCOMO includes roles such as President & Chief Executive Officer, Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer, Chief Financial Officer & Executive Vice President, President's Office, President.