NTT DOCOMO Executive and Leadership Team

July, 2026

Leadership Overview

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

Driven by innovation, NTT DOCOMO is dedicated to advancing telecommunication services, providing consumers with wireless internet, LTE telephone networks, and NFC infrastructure, shaping the future of connectivity.

Leadership Roles at NTT DOCOMO

  • President & Chief Executive Officer - Kimihiro Okubo
  • Chief Financial Officer - Anna Karen
  • Chief Financial Officer & Executive Vice President - Hirotaka Sato
  • Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer - Natsuko Fujiki
  • Managing Director, Chief Financial Officer - Tsubouchi Kazuto
  • President - Seishi Tsukuda
  • President's Office - Katsutoshi Ozawa
  • Chief of Staff - Daisuke Inoue
  • 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 company's overarching strategy and operational execution. This leadership role involves setting the vision for telecommunication services, including wireless internet and LTE telephone networks. Okubo guides the executive team in navigating market dynamics and driving innovation within the telecom sector. The President & Chief Executive Officer ensures alignment across all departments, fostering a culture of continuous improvement and customer focus. By overseeing major strategic initiatives, Kimihiro Okubo is pivotal in expanding NTT DOCOMO's market presence and solidifying its position as a leading provider of advanced communication solutions. This executive's purview encompasses all aspects of the business, from service development to financial performance, ensuring sustainable growth and technological leadership.

    Anna Karen - Chief Financial Officer

    Anna Karen, the Chief Financial Officer at NTT DOCOMO, manages the company's financial operations and fiscal strategy. This executive oversees all aspects of financial planning, budgeting, and reporting, ensuring fiscal responsibility and profitability. Karen's responsibilities include managing investments, optimizing capital allocation, and mitigating financial risks associated with telecommunication services. The Chief Financial Officer works closely with other senior leaders to support strategic decisions with robust financial analysis. By driving financial efficiency, Anna Karen contributes directly to the company's ability to invest in new technologies like NFC infrastructure and expand its LTE telephone networks. This role is critical for maintaining the financial health of NTT DOCOMO and supporting its long-term growth objectives.

    Hirotaka Sato - Chief Financial Officer & Executive Vice President

    Hirotaka Sato, the Chief Financial Officer & Executive Vice President at NTT DOCOMO, directs the company's financial health and strategic fiscal planning. This dual role involves overseeing all financial reporting, budgeting, and investment strategies to ensure robust profitability and sustainable growth. Sato's leadership guides the financial direction for telecommunication services, including wireless internet and NFC infrastructure. The Chief Financial Officer & Executive Vice President collaborates with other executives to align financial objectives with the company's overall mission. By managing capital effectively and identifying growth opportunities, Hirotaka Sato is instrumental in supporting NTT DOCOMO's expansion and technological advancements in the competitive telecom market.

    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, provides comprehensive leadership across financial management and human capital development. This executive oversees the company's financial strategies, ensuring fiscal stability and driving profitability for its diverse telecommunication services. Fujiki also directs human capital initiatives, focusing on talent acquisition, employee development, and fostering a productive work environment. The Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer ensures that financial resources are strategically allocated to support human capital growth and technological innovation, such as advancements in LTE telephone networks. Natsuko Fujiki's integrated approach strengthens both the financial foundation and the human talent pipeline at NTT DOCOMO.

    Tsubouchi Kazuto - Managing Director, Chief Financial Officer

    Tsubouchi Kazuto, the Managing Director, Chief Financial Officer at NTT DOCOMO, oversees the company's financial operations and strategic fiscal planning. This executive is responsible for managing budgets, financial reporting, and investment strategies to ensure the profitability and sustainability of NTT DOCOMO's telecommunication services. Kazuto's role involves optimizing financial performance for areas such as wireless internet and NFC infrastructure services. The Managing Director, Chief Financial Officer works closely with the executive team to align financial goals with the company's broader objectives. Through diligent financial oversight, Tsubouchi Kazuto supports NTT DOCOMO's continued innovation and market leadership in the telecom industry.

    Seishi Tsukuda - President

    Seishi Tsukuda, the President at NTT DOCOMO, directs the company's strategic operations and market positioning within the telecommunications sector. This leadership role involves guiding the development and delivery of essential services, including wireless internet, LTE telephone networks, and NFC infrastructure. Tsukuda collaborates with the executive team to foster innovation and ensure operational excellence across all business units. The President is responsible for driving growth initiatives and enhancing customer satisfaction. By overseeing key strategic directives, Seishi Tsukuda ensures NTT DOCOMO maintains its competitive edge and continues to provide advanced communication solutions to consumers.

    Katsutoshi Ozawa - President's Office

    Katsutoshi Ozawa, the President's Office at NTT DOCOMO, supports the President in managing strategic initiatives and operational oversight. This role involves coordinating key projects, facilitating executive communications, and ensuring the efficient implementation of corporate strategies related to telecommunication services. Ozawa contributes to the smooth functioning of the President's office, supporting the delivery of wireless internet, LTE telephone networks, and NFC infrastructure services. The President's Office plays a vital part in enhancing organizational efficiency and supporting the executive leadership's decision-making processes. Katsutoshi Ozawa's contributions are essential for driving NTT DOCOMO's operational effectiveness and strategic objectives.

    Daisuke Inoue - Chief of Staff

    Daisuke Inoue, the Chief of Staff at NTT DOCOMO, provides strategic support and operational coordination across the executive leadership team. This role involves managing key initiatives, facilitating communication between departments, and ensuring the efficient execution of the company's strategic priorities. Inoue acts as a key liaison, streamlining operations and enhancing productivity for services such as wireless internet and LTE telephone networks. The Chief of Staff supports the President & Chief Executive Officer in driving organizational effectiveness and implementing critical business decisions. By optimizing internal processes and fostering collaboration, Daisuke Inoue plays a vital part in the smooth functioning of NTT DOCOMO's operations and its ability to deliver innovative telecommunication solutions.

    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, drives the company's technological vision and digital infrastructure. This executive leads the development and implementation of advanced technologies, including AI, ensuring robust information systems and stringent cybersecurity measures across all telecommunication services. Tsuboya's responsibilities encompass overseeing the evolution of wireless internet, LTE telephone networks, and NFC infrastructure services. The Senior Executive Vice President, Chief Technology Officer, Chief AI Officer, Chief Information Officer, Chief Information Security Officer ensures that NTT DOCOMO remains at the forefront of technological innovation and maintains the highest standards of data security and system reliability. Hisakazu Tsuboya's leadership is critical for future-proofing the company's technological capabilities.
    Hisakazu Tsuboya
    Tsutomu Abe, the Chief Legal Officer at NTT DOCOMO, provides expert legal counsel and oversees all legal affairs for the company. This executive ensures compliance with all relevant laws and regulations governing telecommunication services, including wireless internet and LTE telephone networks. Abe's responsibilities include managing corporate governance, intellectual property, and risk mitigation strategies. The Chief Legal Officer advises the executive team on legal implications of business decisions and strategic initiatives. By safeguarding the company's legal interests, Tsutomu Abe plays a crucial role in maintaining NTT DOCOMO's operational integrity and supporting its expansion into new markets and technologies.

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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 Anna Karen (Chief Financial 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), Anna Karen (Chief Financial 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, Chief Financial Officer, Chief Financial Officer & Executive Vice President, Senior Executive Vice President, Chief Financial Officer & Chief Human Capital Officer, Managing Director, Chief Financial Officer.